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John Ramsbottom (engineer)
John Ramsbottom (11 September 1814 — 20 May 1897) was an English mechanical engineer. Born in Todmorden, then on the county border of Yorkshire and Lancashire. Ramsbottom was the son of a steam cotton mill owner. He learned about steam engines, rebuilding his father's and also invented the weft fork (this has also been attributed to James Bullough) that enabled looms to be run at high speed. He also created many inventions for railways.
Career
In 1839 Ramsbottom joined Sharp, Roberts and Company of Manchester who made both industrial stationary engines and steam locomotives, and learned of the latter. He was recommended by Charles Beyer in 1842 to become locomotive superintendent of the Manchester and Birmingham Railway (M&BR). In 1846 the M&BR merged and became the London and North Western Railway (LNWR), and Ramsbottom became District Superintendent North Eastern Division. In 1857 Ramsbottom became locomotive superintendent of the Northern Division (lines north of Rugby), based at Crewe. He is credited with designing and introducing the first water troughs to be used by locomotives to pick up at speed.
This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/John_Ramsbottom_(engineer)
John Ramsbottom
John Ramsbottom may refer to:
This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/John_Ramsbottom
John Ramsbottom (mycologist)
John Ramsbottom (1885–1974) was a British mycologist.
Biography
Ramsbottom was Keeper of Botany at the British Museum (Natural History). He served as general secretary and twice as president of the British Mycological Society, and was long editor of its Transactions. He was president of the Quekett Microscopical Club from 1928 to 1931 and was elected an Honorary Member in 1937. He was president of the Linnean Society from 1937 to 1940 and was awarded their Linnean Medal in 1965. Dr Ramsbottom was President of the Society for the History of Natural History from 1943-1972. He was made an Honorary Member in 1972.
Legacy
Dr Ramsbottom made a bequest to the Society in his will and it was decided to utilise this to establish The Ramsbottom Lecture, to be given at the Society’s International Meetings, the first being delivered in April 1976.
Works
Ramsbottom had a lively style both in his lectures and in his writing, which spanned both popular and technical publications. He could write:
This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/John_Ramsbottom_(mycologist)
Ramsbottom
Coordinates: 53°38′54″N 2°19′01″W / 53.6484°N 2.3169°W / 53.6484; -2.3169
Ramsbottom is a market town in the Metropolitan Borough of Bury, Greater Manchester, England. The population at the 2011 census was 17,872.Historically in Lancashire, it is on the River Irwell in the West Pennine Moors,3.9 miles (6.3 km) north-northwest of Bury, and 12 miles (19 km) north-northwest of Manchester.
The name is believed to derive from Old English ramm and botm, meaning "valley of the ram". Its Victorian architecture, Pennine landscape and industrial heritage, including the East Lancashire Railway, contribute to heritage tourism in the town.
History
Toponymy
The name probably means "ram's valley" from the Old English ramm, a ram and botm, a valley. However some toponymists interpret it as wild-garlic-valley, with the first element representing the Old English hramsa meaning "wild garlic". A record from 1324 recording the name as Ramesbothum is inconclusive. The town was alternatively recorded as Ramysbothom in 1540.
This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Ramsbottom
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John Ramsbottom (engineer) | Wikipedia audio article
This is an audio version of the Wikipedia Article: https://en.wikipedia.org/wiki/John_Ramsbottom_(engineer) 00:00:35 1 Career 00:01:29 2 Locomotive designs 00:01:46 3 Innovations 00:02:23 4 Professional appointments 00:02:49 5 Retirement Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago. Learning by listening is a great way to: - increases imagination and understanding - improves your listening skills - improves your own spoken accent - learn while on the move - reduce eye strain Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! I...
published: 07 Jul 2019 -
From Steam Locomotives to Formula 1 - The Surprising & Fascinating History Of Piston Rings!
(DISCLAIMER - The images of the teams and manufacturers in this video are for illustration only. No endorsement or affiliation with any team or manufacturer is either stated or implied.) Nearly 25 years BEFORE Nicholas Otto invented the spark ignited internal combustion engine (the type of engine most cars use), an English Engineer by the name of John Ramsbottom invented the piston ring in 1852, and he did it for steam engines. So before we had cars or gasoline, the industrial revolution brought us steam locomotives. Prior to Mr. Ramsbottom’s stroke of genius, steam engine pistons featured grooves packed with hemp or cotton to improve sealing. Of course, this didn’t work that well, which led to John Ramsbottom’s invention of the metallic, split ring design in 1852. Over the next decade...
published: 03 Jun 2022 -
How Do Motorcycle Piston Rings Work?
Cycle World Technical Editor Kevin Cameron answers your motorcycle engineering and mechanical questions. The split piston ring was invented in 1852 by a locomotive superintendent named John Ramsbottom. Before that time, pistons either had oakum packing—loosely twisted fibers impregnated with tar or similar—or nothing at all. When James Watt, the pioneer of the steam engine, came back from a new boring mill, he was very pleased with the cylinder he had seen produced. “It doth not differ,” Watt said, “from a true cylinder in any part by more than the thickness of an old shilling.” We’ve achieved better precision in recent years. The piston ring does the job of pressing hard enough against the cylinder wall to achieve the basis of a seal. If you fitted the entire piston that tightly, the f...
published: 11 Dec 2017 -
Harry visits "The Dark side"
Construction by H.Williams 5" Gauge Locomotive L.N.W.R Problem Class 2-2-2 'Lady of the Lake' Designed by John Ramsbottom 1859
published: 06 Aug 2020 -
How steam locomotives could refill their water tanks without stopping - The Water Scoop
In this video, we take a look at the rather clever way steam locomotives could refill their water tanks without stopping. Please subscribe for more This video falls under the fair use act of 1976 This video is available to use under the appropriate Creative Commons Licence. Any images used that fall under any Creative Commons Licence belong to their respective owners.
published: 05 Nov 2021 -
The People Behind Creating The New Steam Trains | Steam Train Journeys | Documentary Central
On the Welsh Highland Railway, a newly built Pullman carriage is on its way to Caernarfon Station and a Saddle Tank Loco is being complete restored at Baron Street Works on the East Lancashire Railway. Behind the scenes of three preserved steam railway lines - the South Devon Railway heritage line, the Ffestiniog and Welsh Highlands Railway and the Great Central Railway. Documentary Central is the home for compelling documentaries tackling subjects like history, climate change, wildlife, conspiracy and more. Subscribe so you don't miss out Subscribe for more Documentary Central 👉 https://bit.ly/3yslxbL More amazing playlists Below! Extraordinary Documentaries 👉 http://bit.ly/3ycvSI6 Conspiracy Theories 👉 http://bit.ly/3SNtbq9 History Documentaries 👉 http://bit.ly/3moYtaG Documentaries...
published: 08 Dec 2023 -
Ramsbottom Safety Valve
This is my first video of explaining ramsbottom safety valve assembly and parts A safety valve is a valve that acts as a fail-safe. An example of safety valve is a pressure relief valve (PRV), which automatically releases a substance from a boiler, pressure vessel, or other system, when the pressure or temperature exceeds preset limits. Pilot-operated relief valves are a specialized type of pressure safety valve. A leak tight, lower cost, single emergency use option would be a rupture disk. Safety valves were first developed for use on steam boilers during the Industrial Revolution. Early boilers operating without them were prone to explosion unless carefully operated. Vacuum safety valves (or combined pressure/vacuum safety valves) are used to prevent a tank from collapsing while it is ...
published: 18 Nov 2019 -
Talyllyn railway
Vintage loco Dolgoch No. 2 pulls train away from Abergonolwyn, Sept 2011
published: 08 Oct 2011 -
Now and Then
A look at some of Britain's abandoned railway stations. After the 1963 Beeching report, Over 2,000 stations in Great Britain were closed and most were left to rot. Pictured stations: Ide Halt West Moors Kingsbridge Wickham Cowley Littleham East Budleigh Forest Row Music by Yann Tiersen
published: 06 Oct 2008 -
List of mechanical engineers | Wikipedia audio article
This is an audio version of the Wikipedia Article: https://en.wikipedia.org/wiki/List_of_mechanical_engineers 00:00:13 A 00:01:15 B 00:02:51 C 00:04:54 D 00:06:05 E 00:06:39 F 00:07:47 G 00:09:32 H 00:10:53 I 00:11:09 J 00:11:36 L 00:12:14 M 00:13:59 N 00:14:33 O 00:14:49 P 00:15:22 Q 00:15:40 R 00:16:59 S 00:19:11 T 00:20:04 U 00:20:13 V 00:20:53 W 00:22:10 Y 00:22:28 Z Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago. Learning by listening is a great way to: - increases imagination and understanding - improves your listening skills - improves your own spoken accent - learn while on the move - reduce eye strain Now learn the vast amount of general knowledge ...
published: 06 Jul 2019
developed with YouTube
3:06
John Ramsbottom (engineer) | Wikipedia audio article
- Order: Reorder
- Duration: 3:06
- Uploaded Date: 07 Jul 2019
- views: 16
This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/John_Ramsbottom_(engineer)
00:00:35 1 Career
00:01:29 2 Locomotive design...
This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/John_Ramsbottom_(engineer)
00:00:35 1 Career
00:01:29 2 Locomotive designs
00:01:46 3 Innovations
00:02:23 4 Professional appointments
00:02:49 5 Retirement
Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago.
Learning by listening is a great way to:
- increases imagination and understanding
- improves your listening skills
- improves your own spoken accent
- learn while on the move
- reduce eye strain
Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone.
Listen on Google Assistant through Extra Audio:
https://assistant.google.com/services/invoke/uid/0000001a130b3f91
Other Wikipedia audio articles at:
https://www.youtube.com/results?search_query=wikipedia+tts
Upload your own Wikipedia articles through:
https://github.com/nodef/wikipedia-tts
Speaking Rate: 0.8868098034911532
Voice name: en-US-Wavenet-A
"I cannot teach anybody anything, I can only make them think."
- Socrates
SUMMARY
=======
John Ramsbottom (11 September 1814 – 20 May 1897) was an English mechanical engineer. Born in Todmorden, then on the county border of Yorkshire and Lancashire. Ramsbottom was the son of a steam cotton mill owner. He learned about steam engines, rebuilding his father's and also invented the weft fork (this has also been attributed to James Bullough) that enabled looms to be run at high speed. He also created many inventions for railways.
https://wn.com/John_Ramsbottom_(Engineer)_|_Wikipedia_Audio_Article
This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/John_Ramsbottom_(engineer)
00:00:35 1 Career
00:01:29 2 Locomotive designs
00:01:46 3 Innovations
00:02:23 4 Professional appointments
00:02:49 5 Retirement
Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago.
Learning by listening is a great way to:
- increases imagination and understanding
- improves your listening skills
- improves your own spoken accent
- learn while on the move
- reduce eye strain
Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone.
Listen on Google Assistant through Extra Audio:
https://assistant.google.com/services/invoke/uid/0000001a130b3f91
Other Wikipedia audio articles at:
https://www.youtube.com/results?search_query=wikipedia+tts
Upload your own Wikipedia articles through:
https://github.com/nodef/wikipedia-tts
Speaking Rate: 0.8868098034911532
Voice name: en-US-Wavenet-A
"I cannot teach anybody anything, I can only make them think."
- Socrates
SUMMARY
=======
John Ramsbottom (11 September 1814 – 20 May 1897) was an English mechanical engineer. Born in Todmorden, then on the county border of Yorkshire and Lancashire. Ramsbottom was the son of a steam cotton mill owner. He learned about steam engines, rebuilding his father's and also invented the weft fork (this has also been attributed to James Bullough) that enabled looms to be run at high speed. He also created many inventions for railways.
5:32
From Steam Locomotives to Formula 1 - The Surprising & Fascinating History Of Piston Rings!
- Order: Reorder
- Duration: 5:32
- Uploaded Date: 03 Jun 2022
- views: 28545
(DISCLAIMER - The images of the teams and manufacturers in this video are for illustration only. No endorsement or affiliation with any team or manufacturer is ...
(DISCLAIMER - The images of the teams and manufacturers in this video are for illustration only. No endorsement or affiliation with any team or manufacturer is either stated or implied.)
Nearly 25 years BEFORE Nicholas Otto invented the spark ignited internal combustion engine (the type of engine most cars use), an English Engineer by the name of John Ramsbottom invented the piston ring in 1852, and he did it for steam engines.
So before we had cars or gasoline, the industrial revolution brought us steam locomotives.
Prior to Mr. Ramsbottom’s stroke of genius, steam engine pistons featured grooves packed with hemp or cotton to improve sealing. Of course, this didn’t work that well, which led to John Ramsbottom’s invention of the metallic, split ring design in 1852. Over the next decade, he continued to refine his design, and eventually a steam engine could go 4,000 miles before needing to replace the piston rings. That was a significant improvement in performance and durability. 170 years later, the piston ring is still evolving and enabling greater engine performance and durability.
Interestingly, Britain is not only the birthplace of the piston ring, it is also home of the most advanced piston rings, which are found in Formula 1 engines.
With over 50% thermal efficiency, today’s F1 engines are the most efficient combustion engines ever built (rivaling combined cycle gas turbines). That’s nearly double the efficiency of a regular petrol engine and 50% better than a turbo diesel.
The folks at Mercedes actually made a video about this achievement, so here are a few links:
https://youtu.be/rGDJqTDXgtg
https://youtu.be/XBZZ9lOsj9Y
https://youtu.be/RwwUOYTbyfs
One of the reasons for the incredible efficiency of these engines lies in the fact that piston rings account for nearly 40% of all engine friction. That makes piston rings the number 1 source of friction in an engine.
So the best way to improve engine performance and durability goes right back to Mr. Ramsbottom’s invention - the piston ring.
The evolution of piston ring materials and coatings has allowed for innovation in piston ring sizes and designs. Today’s piston rings are dramatically thinner, lighter and stronger than your Grandfather’s piston rings.
It’s not just racing engines that take advantage of thin ring technology. OEM’s around the world have embraced the efficiency of thinner piston rings. A 1972 Chevy V8 used a 5/64, 5/64, 3/16 cast iron ring package. 50 years later, turbocharged, direct injection engines making twice the horsepower per cubic inch of that old Chevy utilize 1.2, 1.0, 2.0mm steel rings.
More efficient piston rings increase horsepower, reduce engine temperature (both water temperature and oil temperature) and extends motor oil life. All of which means engine life and performance increase. I think John Ramsbottom would be proud to see today’s piston rings.
To learn more about piston rings, hit that subscribe button and visit www.TotalSeal.com
#RacingEngine #CylinderBore #PistonRing #Enginetechnology #horsepower #engine
https://wn.com/From_Steam_Locomotives_To_Formula_1_The_Surprising_Fascinating_History_Of_Piston_Rings
(DISCLAIMER - The images of the teams and manufacturers in this video are for illustration only. No endorsement or affiliation with any team or manufacturer is either stated or implied.)
Nearly 25 years BEFORE Nicholas Otto invented the spark ignited internal combustion engine (the type of engine most cars use), an English Engineer by the name of John Ramsbottom invented the piston ring in 1852, and he did it for steam engines.
So before we had cars or gasoline, the industrial revolution brought us steam locomotives.
Prior to Mr. Ramsbottom’s stroke of genius, steam engine pistons featured grooves packed with hemp or cotton to improve sealing. Of course, this didn’t work that well, which led to John Ramsbottom’s invention of the metallic, split ring design in 1852. Over the next decade, he continued to refine his design, and eventually a steam engine could go 4,000 miles before needing to replace the piston rings. That was a significant improvement in performance and durability. 170 years later, the piston ring is still evolving and enabling greater engine performance and durability.
Interestingly, Britain is not only the birthplace of the piston ring, it is also home of the most advanced piston rings, which are found in Formula 1 engines.
With over 50% thermal efficiency, today’s F1 engines are the most efficient combustion engines ever built (rivaling combined cycle gas turbines). That’s nearly double the efficiency of a regular petrol engine and 50% better than a turbo diesel.
The folks at Mercedes actually made a video about this achievement, so here are a few links:
https://youtu.be/rGDJqTDXgtg
https://youtu.be/XBZZ9lOsj9Y
https://youtu.be/RwwUOYTbyfs
One of the reasons for the incredible efficiency of these engines lies in the fact that piston rings account for nearly 40% of all engine friction. That makes piston rings the number 1 source of friction in an engine.
So the best way to improve engine performance and durability goes right back to Mr. Ramsbottom’s invention - the piston ring.
The evolution of piston ring materials and coatings has allowed for innovation in piston ring sizes and designs. Today’s piston rings are dramatically thinner, lighter and stronger than your Grandfather’s piston rings.
It’s not just racing engines that take advantage of thin ring technology. OEM’s around the world have embraced the efficiency of thinner piston rings. A 1972 Chevy V8 used a 5/64, 5/64, 3/16 cast iron ring package. 50 years later, turbocharged, direct injection engines making twice the horsepower per cubic inch of that old Chevy utilize 1.2, 1.0, 2.0mm steel rings.
More efficient piston rings increase horsepower, reduce engine temperature (both water temperature and oil temperature) and extends motor oil life. All of which means engine life and performance increase. I think John Ramsbottom would be proud to see today’s piston rings.
To learn more about piston rings, hit that subscribe button and visit www.TotalSeal.com
#RacingEngine #CylinderBore #PistonRing #Enginetechnology #horsepower #engine
- published: 03 Jun 2022
- views: 28545
4:19
How Do Motorcycle Piston Rings Work?
- Order: Reorder
- Duration: 4:19
- Uploaded Date: 11 Dec 2017
- views: 11329
Cycle World Technical Editor Kevin Cameron answers your motorcycle engineering and mechanical questions.
The split piston ring was invented in 1852 by a locomo...
Cycle World Technical Editor Kevin Cameron answers your motorcycle engineering and mechanical questions.
The split piston ring was invented in 1852 by a locomotive superintendent named John Ramsbottom. Before that time, pistons either had oakum packing—loosely twisted fibers impregnated with tar or similar—or nothing at all. When James Watt, the pioneer of the steam engine, came back from a new boring mill, he was very pleased with the cylinder he had seen produced.
“It doth not differ,” Watt said, “from a true cylinder in any part by more than the thickness of an old shilling.” We’ve achieved better precision in recent years.
The piston ring does the job of pressing hard enough against the cylinder wall to achieve the basis of a seal. If you fitted the entire piston that tightly, the friction would be overwhelming. The trend in recent years has been for piston rings to become thinner. It was quite common when I was a boy for piston rings to be 3mm thick. Now they’re under 1mm. The reason for that is obvious: The less area you have pressing firmly against the cylinder wall, the lower the friction.
When the combustion process is started by the spark and the pressure in the cylinder begins to rise, the gas flows into the piston ring groove, across the top of the ring, and presses against the inside of it uniformly, inflating the ring against the cylinder wall.
The rate at which that gas flows into the ring groove is controlled by how much clearance there is between the ring and the groove. The fact that the ring is pressed firmly down against the bottom of the groove and out against the cylinder wall by combustion gas is attested by the fact that the wear surface—that which is pressed against the cylinder wall—is shiny and the top tends to collect deposits.
In a two-stroke, the top piston ring does most of the job of sealing. The second ring is there to help with the job of sealing as the top ring ages. In some cases, it can also be a heat-transfer ring. The pistons of large marine diesels have rows of rings. When they tried to do away with those rings, the pistons got hot.
In the case of a four-stroke piston, there will be a top compression ring, a second compression ring, and then an oil scraper, which is there to make sure the amount of oil that stays on the cylinder wall after the piston has passed by is quite limited so it doesn’t get into the combustion chamber. You can see how things used to be by watching an old movie: Pre-war automobiles all smoked. Scraper-ring technology was not highly developed in those days.
Read the full article here: https://www.cycleworld.com/how-do-motorcycle-piston-rings-work/
Subscribe to Cycle World Youtube: http://www.youtube.com/c/cycleworld?sub_confirmation=1
Read more from Cycle World: https://www.cycleworld.com/
Buy Cycle World Merch: https://teespring.com/stores/cycleworld
https://wn.com/How_Do_Motorcycle_Piston_Rings_Work
Cycle World Technical Editor Kevin Cameron answers your motorcycle engineering and mechanical questions.
The split piston ring was invented in 1852 by a locomotive superintendent named John Ramsbottom. Before that time, pistons either had oakum packing—loosely twisted fibers impregnated with tar or similar—or nothing at all. When James Watt, the pioneer of the steam engine, came back from a new boring mill, he was very pleased with the cylinder he had seen produced.
“It doth not differ,” Watt said, “from a true cylinder in any part by more than the thickness of an old shilling.” We’ve achieved better precision in recent years.
The piston ring does the job of pressing hard enough against the cylinder wall to achieve the basis of a seal. If you fitted the entire piston that tightly, the friction would be overwhelming. The trend in recent years has been for piston rings to become thinner. It was quite common when I was a boy for piston rings to be 3mm thick. Now they’re under 1mm. The reason for that is obvious: The less area you have pressing firmly against the cylinder wall, the lower the friction.
When the combustion process is started by the spark and the pressure in the cylinder begins to rise, the gas flows into the piston ring groove, across the top of the ring, and presses against the inside of it uniformly, inflating the ring against the cylinder wall.
The rate at which that gas flows into the ring groove is controlled by how much clearance there is between the ring and the groove. The fact that the ring is pressed firmly down against the bottom of the groove and out against the cylinder wall by combustion gas is attested by the fact that the wear surface—that which is pressed against the cylinder wall—is shiny and the top tends to collect deposits.
In a two-stroke, the top piston ring does most of the job of sealing. The second ring is there to help with the job of sealing as the top ring ages. In some cases, it can also be a heat-transfer ring. The pistons of large marine diesels have rows of rings. When they tried to do away with those rings, the pistons got hot.
In the case of a four-stroke piston, there will be a top compression ring, a second compression ring, and then an oil scraper, which is there to make sure the amount of oil that stays on the cylinder wall after the piston has passed by is quite limited so it doesn’t get into the combustion chamber. You can see how things used to be by watching an old movie: Pre-war automobiles all smoked. Scraper-ring technology was not highly developed in those days.
Read the full article here: https://www.cycleworld.com/how-do-motorcycle-piston-rings-work/
Subscribe to Cycle World Youtube: http://www.youtube.com/c/cycleworld?sub_confirmation=1
Read more from Cycle World: https://www.cycleworld.com/
Buy Cycle World Merch: https://teespring.com/stores/cycleworld
- published: 11 Dec 2017
- views: 11329
7:53
Harry visits "The Dark side"
- Order: Reorder
- Duration: 7:53
- Uploaded Date: 06 Aug 2020
- views: 345
Construction by H.Williams 5" Gauge Locomotive L.N.W.R Problem Class
2-2-2 'Lady of the Lake' Designed by John Ramsbottom 1859
Construction by H.Williams 5" Gauge Locomotive L.N.W.R Problem Class
2-2-2 'Lady of the Lake' Designed by John Ramsbottom 1859
https://wn.com/Harry_Visits_The_Dark_Side
Construction by H.Williams 5" Gauge Locomotive L.N.W.R Problem Class
2-2-2 'Lady of the Lake' Designed by John Ramsbottom 1859
- published: 06 Aug 2020
- views: 345
3:10
How steam locomotives could refill their water tanks without stopping - The Water Scoop
- Order: Reorder
- Duration: 3:10
- Uploaded Date: 05 Nov 2021
- views: 259586
In this video, we take a look at the rather clever way steam locomotives could refill their water tanks without stopping.
Please subscribe for more
This video...
In this video, we take a look at the rather clever way steam locomotives could refill their water tanks without stopping.
Please subscribe for more
This video falls under the fair use act of 1976 This video is available to use under the appropriate Creative Commons Licence.
Any images used that fall under any Creative Commons Licence belong to their respective owners.
https://wn.com/How_Steam_Locomotives_Could_Refill_Their_Water_Tanks_Without_Stopping_The_Water_Scoop
In this video, we take a look at the rather clever way steam locomotives could refill their water tanks without stopping.
Please subscribe for more
This video falls under the fair use act of 1976 This video is available to use under the appropriate Creative Commons Licence.
Any images used that fall under any Creative Commons Licence belong to their respective owners.
- published: 05 Nov 2021
- views: 259586
43:52
The People Behind Creating The New Steam Trains | Steam Train Journeys | Documentary Central
- Order: Reorder
- Duration: 43:52
- Uploaded Date: 08 Dec 2023
- views: 3033
On the Welsh Highland Railway, a newly built Pullman carriage is on its way to Caernarfon Station and a Saddle Tank Loco is being complete restored at Baron Str...
On the Welsh Highland Railway, a newly built Pullman carriage is on its way to Caernarfon Station and a Saddle Tank Loco is being complete restored at Baron Street Works on the East Lancashire Railway.
Behind the scenes of three preserved steam railway lines - the South Devon Railway heritage line, the Ffestiniog and Welsh Highlands Railway and the Great Central Railway.
Documentary Central is the home for compelling documentaries tackling subjects like history, climate change, wildlife, conspiracy and more. Subscribe so you don't miss out
Subscribe for more Documentary Central 👉 https://bit.ly/3yslxbL
More amazing playlists Below!
Extraordinary Documentaries 👉 http://bit.ly/3ycvSI6
Conspiracy Theories 👉 http://bit.ly/3SNtbq9
History Documentaries 👉 http://bit.ly/3moYtaG
Documentaries on War 👉 http://bit.ly/3IRvrbk
Nature Documentaries 👉 http://bit.ly/3SP5ZYo
**This title is under license from Cineflix. All rights reserved**
#Documentary #train #steamtrains
https://wn.com/The_People_Behind_Creating_The_New_Steam_Trains_|_Steam_Train_Journeys_|_Documentary_Central
On the Welsh Highland Railway, a newly built Pullman carriage is on its way to Caernarfon Station and a Saddle Tank Loco is being complete restored at Baron Street Works on the East Lancashire Railway.
Behind the scenes of three preserved steam railway lines - the South Devon Railway heritage line, the Ffestiniog and Welsh Highlands Railway and the Great Central Railway.
Documentary Central is the home for compelling documentaries tackling subjects like history, climate change, wildlife, conspiracy and more. Subscribe so you don't miss out
Subscribe for more Documentary Central 👉 https://bit.ly/3yslxbL
More amazing playlists Below!
Extraordinary Documentaries 👉 http://bit.ly/3ycvSI6
Conspiracy Theories 👉 http://bit.ly/3SNtbq9
History Documentaries 👉 http://bit.ly/3moYtaG
Documentaries on War 👉 http://bit.ly/3IRvrbk
Nature Documentaries 👉 http://bit.ly/3SP5ZYo
**This title is under license from Cineflix. All rights reserved**
#Documentary #train #steamtrains
- published: 08 Dec 2023
- views: 3033
9:05
Ramsbottom Safety Valve
- Order: Reorder
- Duration: 9:05
- Uploaded Date: 18 Nov 2019
- views: 536
This is my first video of explaining ramsbottom safety valve assembly and parts
A safety valve is a valve that acts as a fail-safe. An example of safety valve i...
This is my first video of explaining ramsbottom safety valve assembly and parts
A safety valve is a valve that acts as a fail-safe. An example of safety valve is a pressure relief valve (PRV), which automatically releases a substance from a boiler, pressure vessel, or other system, when the pressure or temperature exceeds preset limits. Pilot-operated relief valves are a specialized type of pressure safety valve. A leak tight, lower cost, single emergency use option would be a rupture disk.
Safety valves were first developed for use on steam boilers during the Industrial Revolution. Early boilers operating without them were prone to explosion unless carefully operated.
Vacuum safety valves (or combined pressure/vacuum safety valves) are used to prevent a tank from collapsing while it is being emptied, or when cold rinse water is used after hot CIP (clean-in-place) or SIP (sterilization-in-place) procedures. When sizing a vacuum safety valve, the calculation method is not defined in any norm, particularly in the hot CIP / cold water scenario, but some manufacturers [1] have developed sizing simulations.
The earliest and simplest safety valve was used on a 1679 steam digester and utilized a weight to retain the steam pressure (this design is still commonly used on pressure cookers); however, these were easily tampered with or accidentally released. On the Stockton and Darlington Railway, the safety valve tended to go off when the engine hit a bump in the track. A valve less sensitive to sudden accelerations used a spring to contain the steam pressure, but these (based on a Salter spring balance) could still be screwed down to increase the pressure beyond design limits. This dangerous practice was sometimes used to marginally increase the performance of a steam engine. In 1856, John Ramsbottom invented a tamper-proof spring safety valve that became universal on railways. The Ramsbottom valve consisted of two plug-type valves connected to each other by a spring-laden pivoting arm, with one valve element on either side of the pivot. Any adjustment made to one of valves in an attempt to increase its operating pressure would cause the other valve to be lifted off its seat, regardless of how the adjustment was attempted. The pivot point on the arm was not symmetrically between the valves, so any tightening of the spring would cause one of the valves to lift. Only by removing and disassembling the entire valve assembly could its operating pressure be adjusted, making impromptu 'tying down' of the valve by locomotive crews in search of more power impossible. The pivoting arm was commonly extended into a handle shape and fed back into the locomotive cab, allowing crews to 'rock' both valves off their seats to confirm they were set and operating correctly.
Safety valves also evolved to protect equipment such as pressure vessels (fired or not) and heat exchangers. The term safety valve should be limited to compressible fluid applications (gas, vapour, or steam).
The two general types of protection encountered in industry are thermal protection and flow protection.
For liquid-packed vessels, thermal relief valves are generally characterized by the relatively small size of the valve necessary to provide protection from excess pressure caused by thermal expansion. In this case a small valve is adequate because most liquids are nearly incompressible, and so a relatively small amount of fluid discharged through the relief valve will produce a substantial reduction in pressure.
Flow protection is characterized by safety valves that are considerably larger than those mounted for thermal protection. They are generally sized for use in situations where significant quantities of gas or high volumes of liquid must be quickly discharged in order to protect the integrity of the vessel or pipeline. This protection can alternatively be achieved by installing a high integrity pressure protection system (HIPPS).
https://wn.com/Ramsbottom_Safety_Valve
This is my first video of explaining ramsbottom safety valve assembly and parts
A safety valve is a valve that acts as a fail-safe. An example of safety valve is a pressure relief valve (PRV), which automatically releases a substance from a boiler, pressure vessel, or other system, when the pressure or temperature exceeds preset limits. Pilot-operated relief valves are a specialized type of pressure safety valve. A leak tight, lower cost, single emergency use option would be a rupture disk.
Safety valves were first developed for use on steam boilers during the Industrial Revolution. Early boilers operating without them were prone to explosion unless carefully operated.
Vacuum safety valves (or combined pressure/vacuum safety valves) are used to prevent a tank from collapsing while it is being emptied, or when cold rinse water is used after hot CIP (clean-in-place) or SIP (sterilization-in-place) procedures. When sizing a vacuum safety valve, the calculation method is not defined in any norm, particularly in the hot CIP / cold water scenario, but some manufacturers [1] have developed sizing simulations.
The earliest and simplest safety valve was used on a 1679 steam digester and utilized a weight to retain the steam pressure (this design is still commonly used on pressure cookers); however, these were easily tampered with or accidentally released. On the Stockton and Darlington Railway, the safety valve tended to go off when the engine hit a bump in the track. A valve less sensitive to sudden accelerations used a spring to contain the steam pressure, but these (based on a Salter spring balance) could still be screwed down to increase the pressure beyond design limits. This dangerous practice was sometimes used to marginally increase the performance of a steam engine. In 1856, John Ramsbottom invented a tamper-proof spring safety valve that became universal on railways. The Ramsbottom valve consisted of two plug-type valves connected to each other by a spring-laden pivoting arm, with one valve element on either side of the pivot. Any adjustment made to one of valves in an attempt to increase its operating pressure would cause the other valve to be lifted off its seat, regardless of how the adjustment was attempted. The pivot point on the arm was not symmetrically between the valves, so any tightening of the spring would cause one of the valves to lift. Only by removing and disassembling the entire valve assembly could its operating pressure be adjusted, making impromptu 'tying down' of the valve by locomotive crews in search of more power impossible. The pivoting arm was commonly extended into a handle shape and fed back into the locomotive cab, allowing crews to 'rock' both valves off their seats to confirm they were set and operating correctly.
Safety valves also evolved to protect equipment such as pressure vessels (fired or not) and heat exchangers. The term safety valve should be limited to compressible fluid applications (gas, vapour, or steam).
The two general types of protection encountered in industry are thermal protection and flow protection.
For liquid-packed vessels, thermal relief valves are generally characterized by the relatively small size of the valve necessary to provide protection from excess pressure caused by thermal expansion. In this case a small valve is adequate because most liquids are nearly incompressible, and so a relatively small amount of fluid discharged through the relief valve will produce a substantial reduction in pressure.
Flow protection is characterized by safety valves that are considerably larger than those mounted for thermal protection. They are generally sized for use in situations where significant quantities of gas or high volumes of liquid must be quickly discharged in order to protect the integrity of the vessel or pipeline. This protection can alternatively be achieved by installing a high integrity pressure protection system (HIPPS).
- published: 18 Nov 2019
- views: 536
0:26
Talyllyn railway
- Order: Reorder
- Duration: 0:26
- Uploaded Date: 08 Oct 2011
- views: 207
Vintage loco Dolgoch No. 2 pulls train away from Abergonolwyn, Sept 2011
Vintage loco Dolgoch No. 2 pulls train away from Abergonolwyn, Sept 2011
https://wn.com/Talyllyn_Railway
Vintage loco Dolgoch No. 2 pulls train away from Abergonolwyn, Sept 2011
- published: 08 Oct 2011
- views: 207
2:45
Now and Then
- Order: Reorder
- Duration: 2:45
- Uploaded Date: 06 Oct 2008
- views: 759203
A look at some of Britain's abandoned railway stations.
After the 1963 Beeching report, Over 2,000 stations in Great Britain were closed and most were left ...
A look at some of Britain's abandoned railway stations.
After the 1963 Beeching report, Over 2,000 stations in Great Britain were closed and most were left to rot.
Pictured stations:
Ide Halt
West Moors
Kingsbridge
Wickham
Cowley
Littleham
East Budleigh
Forest Row
Music by Yann Tiersen
https://wn.com/Now_And_Then
A look at some of Britain's abandoned railway stations.
After the 1963 Beeching report, Over 2,000 stations in Great Britain were closed and most were left to rot.
Pictured stations:
Ide Halt
West Moors
Kingsbridge
Wickham
Cowley
Littleham
East Budleigh
Forest Row
Music by Yann Tiersen
- published: 06 Oct 2008
- views: 759203
22:47
List of mechanical engineers | Wikipedia audio article
- Order: Reorder
- Duration: 22:47
- Uploaded Date: 06 Jul 2019
- views: 17
This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/List_of_mechanical_engineers
00:00:13 A
00:01:15 B
00:02:51 C
00:04:54 D
...
This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/List_of_mechanical_engineers
00:00:13 A
00:01:15 B
00:02:51 C
00:04:54 D
00:06:05 E
00:06:39 F
00:07:47 G
00:09:32 H
00:10:53 I
00:11:09 J
00:11:36 L
00:12:14 M
00:13:59 N
00:14:33 O
00:14:49 P
00:15:22 Q
00:15:40 R
00:16:59 S
00:19:11 T
00:20:04 U
00:20:13 V
00:20:53 W
00:22:10 Y
00:22:28 Z
Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago.
Learning by listening is a great way to:
- increases imagination and understanding
- improves your listening skills
- improves your own spoken accent
- learn while on the move
- reduce eye strain
Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone.
Listen on Google Assistant through Extra Audio:
https://assistant.google.com/services/invoke/uid/0000001a130b3f91
Other Wikipedia audio articles at:
https://www.youtube.com/results?search_query=wikipedia+tts
Upload your own Wikipedia articles through:
https://github.com/nodef/wikipedia-tts
Speaking Rate: 0.9956386513334947
Voice name: en-GB-Wavenet-D
"I cannot teach anybody anything, I can only make them think."
- Socrates
SUMMARY
=======
This is a list of mechanical engineers, noted for their contribution to the field of mechanical engineering.
See also List of engineers for links to other engineering professions.
https://wn.com/List_Of_Mechanical_Engineers_|_Wikipedia_Audio_Article
This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/List_of_mechanical_engineers
00:00:13 A
00:01:15 B
00:02:51 C
00:04:54 D
00:06:05 E
00:06:39 F
00:07:47 G
00:09:32 H
00:10:53 I
00:11:09 J
00:11:36 L
00:12:14 M
00:13:59 N
00:14:33 O
00:14:49 P
00:15:22 Q
00:15:40 R
00:16:59 S
00:19:11 T
00:20:04 U
00:20:13 V
00:20:53 W
00:22:10 Y
00:22:28 Z
Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago.
Learning by listening is a great way to:
- increases imagination and understanding
- improves your listening skills
- improves your own spoken accent
- learn while on the move
- reduce eye strain
Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone.
Listen on Google Assistant through Extra Audio:
https://assistant.google.com/services/invoke/uid/0000001a130b3f91
Other Wikipedia audio articles at:
https://www.youtube.com/results?search_query=wikipedia+tts
Upload your own Wikipedia articles through:
https://github.com/nodef/wikipedia-tts
Speaking Rate: 0.9956386513334947
Voice name: en-GB-Wavenet-D
"I cannot teach anybody anything, I can only make them think."
- Socrates
SUMMARY
=======
This is a list of mechanical engineers, noted for their contribution to the field of mechanical engineering.
See also List of engineers for links to other engineering professions.
- published: 06 Jul 2019
- views: 17
3:06
John Ramsbottom (engineer) | Wikipedia audio article
This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/John_Ram...
published: 07 Jul 2019
John Ramsbottom (engineer) | Wikipedia audio article
John Ramsbottom (engineer) | Wikipedia audio article
- Report rights infringement
- published: 07 Jul 2019
- views: 16
This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/John_Ramsbottom_(engineer)
00:00:35 1 Career
00:01:29 2 Locomotive designs
00:01:46 3 Innovations
00:02:23 4 Professional appointments
00:02:49 5 Retirement
Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago.
Learning by listening is a great way to:
- increases imagination and understanding
- improves your listening skills
- improves your own spoken accent
- learn while on the move
- reduce eye strain
Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone.
Listen on Google Assistant through Extra Audio:
https://assistant.google.com/services/invoke/uid/0000001a130b3f91
Other Wikipedia audio articles at:
https://www.youtube.com/results?search_query=wikipedia+tts
Upload your own Wikipedia articles through:
https://github.com/nodef/wikipedia-tts
Speaking Rate: 0.8868098034911532
Voice name: en-US-Wavenet-A
"I cannot teach anybody anything, I can only make them think."
- Socrates
SUMMARY
=======
John Ramsbottom (11 September 1814 – 20 May 1897) was an English mechanical engineer. Born in Todmorden, then on the county border of Yorkshire and Lancashire. Ramsbottom was the son of a steam cotton mill owner. He learned about steam engines, rebuilding his father's and also invented the weft fork (this has also been attributed to James Bullough) that enabled looms to be run at high speed. He also created many inventions for railways.
5:32
From Steam Locomotives to Formula 1 - The Surprising & Fascinating History Of Piston Rings!
(DISCLAIMER - The images of the teams and manufacturers in this video are for illustration...
published: 03 Jun 2022
From Steam Locomotives to Formula 1 - The Surprising & Fascinating History Of Piston Rings!
From Steam Locomotives to Formula 1 - The Surprising & Fascinating History Of Piston Rings!
- Report rights infringement
- published: 03 Jun 2022
- views: 28545
(DISCLAIMER - The images of the teams and manufacturers in this video are for illustration only. No endorsement or affiliation with any team or manufacturer is either stated or implied.)
Nearly 25 years BEFORE Nicholas Otto invented the spark ignited internal combustion engine (the type of engine most cars use), an English Engineer by the name of John Ramsbottom invented the piston ring in 1852, and he did it for steam engines.
So before we had cars or gasoline, the industrial revolution brought us steam locomotives.
Prior to Mr. Ramsbottom’s stroke of genius, steam engine pistons featured grooves packed with hemp or cotton to improve sealing. Of course, this didn’t work that well, which led to John Ramsbottom’s invention of the metallic, split ring design in 1852. Over the next decade, he continued to refine his design, and eventually a steam engine could go 4,000 miles before needing to replace the piston rings. That was a significant improvement in performance and durability. 170 years later, the piston ring is still evolving and enabling greater engine performance and durability.
Interestingly, Britain is not only the birthplace of the piston ring, it is also home of the most advanced piston rings, which are found in Formula 1 engines.
With over 50% thermal efficiency, today’s F1 engines are the most efficient combustion engines ever built (rivaling combined cycle gas turbines). That’s nearly double the efficiency of a regular petrol engine and 50% better than a turbo diesel.
The folks at Mercedes actually made a video about this achievement, so here are a few links:
https://youtu.be/rGDJqTDXgtg
https://youtu.be/XBZZ9lOsj9Y
https://youtu.be/RwwUOYTbyfs
One of the reasons for the incredible efficiency of these engines lies in the fact that piston rings account for nearly 40% of all engine friction. That makes piston rings the number 1 source of friction in an engine.
So the best way to improve engine performance and durability goes right back to Mr. Ramsbottom’s invention - the piston ring.
The evolution of piston ring materials and coatings has allowed for innovation in piston ring sizes and designs. Today’s piston rings are dramatically thinner, lighter and stronger than your Grandfather’s piston rings.
It’s not just racing engines that take advantage of thin ring technology. OEM’s around the world have embraced the efficiency of thinner piston rings. A 1972 Chevy V8 used a 5/64, 5/64, 3/16 cast iron ring package. 50 years later, turbocharged, direct injection engines making twice the horsepower per cubic inch of that old Chevy utilize 1.2, 1.0, 2.0mm steel rings.
More efficient piston rings increase horsepower, reduce engine temperature (both water temperature and oil temperature) and extends motor oil life. All of which means engine life and performance increase. I think John Ramsbottom would be proud to see today’s piston rings.
To learn more about piston rings, hit that subscribe button and visit www.TotalSeal.com
#RacingEngine #CylinderBore #PistonRing #Enginetechnology #horsepower #engine
4:19
How Do Motorcycle Piston Rings Work?
Cycle World Technical Editor Kevin Cameron answers your motorcycle engineering and mechani...
published: 11 Dec 2017
How Do Motorcycle Piston Rings Work?
How Do Motorcycle Piston Rings Work?
- Report rights infringement
- published: 11 Dec 2017
- views: 11329
Cycle World Technical Editor Kevin Cameron answers your motorcycle engineering and mechanical questions.
The split piston ring was invented in 1852 by a locomotive superintendent named John Ramsbottom. Before that time, pistons either had oakum packing—loosely twisted fibers impregnated with tar or similar—or nothing at all. When James Watt, the pioneer of the steam engine, came back from a new boring mill, he was very pleased with the cylinder he had seen produced.
“It doth not differ,” Watt said, “from a true cylinder in any part by more than the thickness of an old shilling.” We’ve achieved better precision in recent years.
The piston ring does the job of pressing hard enough against the cylinder wall to achieve the basis of a seal. If you fitted the entire piston that tightly, the friction would be overwhelming. The trend in recent years has been for piston rings to become thinner. It was quite common when I was a boy for piston rings to be 3mm thick. Now they’re under 1mm. The reason for that is obvious: The less area you have pressing firmly against the cylinder wall, the lower the friction.
When the combustion process is started by the spark and the pressure in the cylinder begins to rise, the gas flows into the piston ring groove, across the top of the ring, and presses against the inside of it uniformly, inflating the ring against the cylinder wall.
The rate at which that gas flows into the ring groove is controlled by how much clearance there is between the ring and the groove. The fact that the ring is pressed firmly down against the bottom of the groove and out against the cylinder wall by combustion gas is attested by the fact that the wear surface—that which is pressed against the cylinder wall—is shiny and the top tends to collect deposits.
In a two-stroke, the top piston ring does most of the job of sealing. The second ring is there to help with the job of sealing as the top ring ages. In some cases, it can also be a heat-transfer ring. The pistons of large marine diesels have rows of rings. When they tried to do away with those rings, the pistons got hot.
In the case of a four-stroke piston, there will be a top compression ring, a second compression ring, and then an oil scraper, which is there to make sure the amount of oil that stays on the cylinder wall after the piston has passed by is quite limited so it doesn’t get into the combustion chamber. You can see how things used to be by watching an old movie: Pre-war automobiles all smoked. Scraper-ring technology was not highly developed in those days.
Read the full article here: https://www.cycleworld.com/how-do-motorcycle-piston-rings-work/
Subscribe to Cycle World Youtube: http://www.youtube.com/c/cycleworld?sub_confirmation=1
Read more from Cycle World: https://www.cycleworld.com/
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7:53
Harry visits "The Dark side"
Construction by H.Williams 5" Gauge Locomotive L.N.W.R Problem Class
2-2-2 'Lady of the ...
published: 06 Aug 2020
Harry visits "The Dark side"
Harry visits "The Dark side"
- Report rights infringement
- published: 06 Aug 2020
- views: 345
Construction by H.Williams 5" Gauge Locomotive L.N.W.R Problem Class
2-2-2 'Lady of the Lake' Designed by John Ramsbottom 1859
3:10
How steam locomotives could refill their water tanks without stopping - The Water Scoop
In this video, we take a look at the rather clever way steam locomotives could refill thei...
published: 05 Nov 2021
How steam locomotives could refill their water tanks without stopping - The Water Scoop
How steam locomotives could refill their water tanks without stopping - The Water Scoop
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- published: 05 Nov 2021
- views: 259586
In this video, we take a look at the rather clever way steam locomotives could refill their water tanks without stopping.
Please subscribe for more
This video falls under the fair use act of 1976 This video is available to use under the appropriate Creative Commons Licence.
Any images used that fall under any Creative Commons Licence belong to their respective owners.
43:52
The People Behind Creating The New Steam Trains | Steam Train Journeys | Documentary Central
On the Welsh Highland Railway, a newly built Pullman carriage is on its way to Caernarfon ...
published: 08 Dec 2023
The People Behind Creating The New Steam Trains | Steam Train Journeys | Documentary Central
The People Behind Creating The New Steam Trains | Steam Train Journeys | Documentary Central
- Report rights infringement
- published: 08 Dec 2023
- views: 3033
On the Welsh Highland Railway, a newly built Pullman carriage is on its way to Caernarfon Station and a Saddle Tank Loco is being complete restored at Baron Street Works on the East Lancashire Railway.
Behind the scenes of three preserved steam railway lines - the South Devon Railway heritage line, the Ffestiniog and Welsh Highlands Railway and the Great Central Railway.
Documentary Central is the home for compelling documentaries tackling subjects like history, climate change, wildlife, conspiracy and more. Subscribe so you don't miss out
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**This title is under license from Cineflix. All rights reserved**
#Documentary #train #steamtrains
9:05
Ramsbottom Safety Valve
This is my first video of explaining ramsbottom safety valve assembly and parts
A safety v...
published: 18 Nov 2019
Ramsbottom Safety Valve
Ramsbottom Safety Valve
- Report rights infringement
- published: 18 Nov 2019
- views: 536
This is my first video of explaining ramsbottom safety valve assembly and parts
A safety valve is a valve that acts as a fail-safe. An example of safety valve is a pressure relief valve (PRV), which automatically releases a substance from a boiler, pressure vessel, or other system, when the pressure or temperature exceeds preset limits. Pilot-operated relief valves are a specialized type of pressure safety valve. A leak tight, lower cost, single emergency use option would be a rupture disk.
Safety valves were first developed for use on steam boilers during the Industrial Revolution. Early boilers operating without them were prone to explosion unless carefully operated.
Vacuum safety valves (or combined pressure/vacuum safety valves) are used to prevent a tank from collapsing while it is being emptied, or when cold rinse water is used after hot CIP (clean-in-place) or SIP (sterilization-in-place) procedures. When sizing a vacuum safety valve, the calculation method is not defined in any norm, particularly in the hot CIP / cold water scenario, but some manufacturers [1] have developed sizing simulations.
The earliest and simplest safety valve was used on a 1679 steam digester and utilized a weight to retain the steam pressure (this design is still commonly used on pressure cookers); however, these were easily tampered with or accidentally released. On the Stockton and Darlington Railway, the safety valve tended to go off when the engine hit a bump in the track. A valve less sensitive to sudden accelerations used a spring to contain the steam pressure, but these (based on a Salter spring balance) could still be screwed down to increase the pressure beyond design limits. This dangerous practice was sometimes used to marginally increase the performance of a steam engine. In 1856, John Ramsbottom invented a tamper-proof spring safety valve that became universal on railways. The Ramsbottom valve consisted of two plug-type valves connected to each other by a spring-laden pivoting arm, with one valve element on either side of the pivot. Any adjustment made to one of valves in an attempt to increase its operating pressure would cause the other valve to be lifted off its seat, regardless of how the adjustment was attempted. The pivot point on the arm was not symmetrically between the valves, so any tightening of the spring would cause one of the valves to lift. Only by removing and disassembling the entire valve assembly could its operating pressure be adjusted, making impromptu 'tying down' of the valve by locomotive crews in search of more power impossible. The pivoting arm was commonly extended into a handle shape and fed back into the locomotive cab, allowing crews to 'rock' both valves off their seats to confirm they were set and operating correctly.
Safety valves also evolved to protect equipment such as pressure vessels (fired or not) and heat exchangers. The term safety valve should be limited to compressible fluid applications (gas, vapour, or steam).
The two general types of protection encountered in industry are thermal protection and flow protection.
For liquid-packed vessels, thermal relief valves are generally characterized by the relatively small size of the valve necessary to provide protection from excess pressure caused by thermal expansion. In this case a small valve is adequate because most liquids are nearly incompressible, and so a relatively small amount of fluid discharged through the relief valve will produce a substantial reduction in pressure.
Flow protection is characterized by safety valves that are considerably larger than those mounted for thermal protection. They are generally sized for use in situations where significant quantities of gas or high volumes of liquid must be quickly discharged in order to protect the integrity of the vessel or pipeline. This protection can alternatively be achieved by installing a high integrity pressure protection system (HIPPS).
0:26
Talyllyn railway
Vintage loco Dolgoch No. 2 pulls train away from Abergonolwyn, Sept 2011
published: 08 Oct 2011
Talyllyn railway
Talyllyn railway
- Report rights infringement
- published: 08 Oct 2011
- views: 207
Vintage loco Dolgoch No. 2 pulls train away from Abergonolwyn, Sept 2011
2:45
Now and Then
A look at some of Britain's abandoned railway stations.
After the 1963 Beeching report...
published: 06 Oct 2008
Now and Then
Now and Then
- Report rights infringement
- published: 06 Oct 2008
- views: 759203
A look at some of Britain's abandoned railway stations.
After the 1963 Beeching report, Over 2,000 stations in Great Britain were closed and most were left to rot.
Pictured stations:
Ide Halt
West Moors
Kingsbridge
Wickham
Cowley
Littleham
East Budleigh
Forest Row
Music by Yann Tiersen
22:47
List of mechanical engineers | Wikipedia audio article
This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/List_of_...
published: 06 Jul 2019
List of mechanical engineers | Wikipedia audio article
List of mechanical engineers | Wikipedia audio article
- Report rights infringement
- published: 06 Jul 2019
- views: 17
This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/List_of_mechanical_engineers
00:00:13 A
00:01:15 B
00:02:51 C
00:04:54 D
00:06:05 E
00:06:39 F
00:07:47 G
00:09:32 H
00:10:53 I
00:11:09 J
00:11:36 L
00:12:14 M
00:13:59 N
00:14:33 O
00:14:49 P
00:15:22 Q
00:15:40 R
00:16:59 S
00:19:11 T
00:20:04 U
00:20:13 V
00:20:53 W
00:22:10 Y
00:22:28 Z
Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago.
Learning by listening is a great way to:
- increases imagination and understanding
- improves your listening skills
- improves your own spoken accent
- learn while on the move
- reduce eye strain
Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone.
Listen on Google Assistant through Extra Audio:
https://assistant.google.com/services/invoke/uid/0000001a130b3f91
Other Wikipedia audio articles at:
https://www.youtube.com/results?search_query=wikipedia+tts
Upload your own Wikipedia articles through:
https://github.com/nodef/wikipedia-tts
Speaking Rate: 0.9956386513334947
Voice name: en-GB-Wavenet-D
"I cannot teach anybody anything, I can only make them think."
- Socrates
SUMMARY
=======
This is a list of mechanical engineers, noted for their contribution to the field of mechanical engineering.
See also List of engineers for links to other engineering professions.
John Ramsbottom (engineer)
John Ramsbottom (11 September 1814 — 20 May 1897) was an English mechanical engineer. Born in Todmorden, then on the county border of Yorkshire and Lancashire. Ramsbottom was the son of a steam cotton mill owner. He learned about steam engines, rebuilding his father's and also invented the weft fork (this has also been attributed to James Bullough) that enabled looms to be run at high speed. He also created many inventions for railways.
Career
In 1839 Ramsbottom joined Sharp, Roberts and Company of Manchester who made both industrial stationary engines and steam locomotives, and learned of the latter. He was recommended by Charles Beyer in 1842 to become locomotive superintendent of the Manchester and Birmingham Railway (M&BR). In 1846 the M&BR merged and became the London and North Western Railway (LNWR), and Ramsbottom became District Superintendent North Eastern Division. In 1857 Ramsbottom became locomotive superintendent of the Northern Division (lines north of Rugby), based at Crewe. He is credited with designing and introducing the first water troughs to be used by locomotives to pick up at speed.
This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/John_Ramsbottom_(engineer)
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