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Eugene Bourdon and the Bourdon tube
https://www.rypn.org/forums/viewtopic.php?f=1&t=43951
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Author:  Rick A [ Mon Nov 18, 2019 3:00 pm ]
Post subject:  Eugene Bourdon and the Bourdon tube

Almost every gauge since 1849 has come with a Bourdon tube inside. It's the metal tube that flexes when put under pressure and causes the needle on the face of the gauge to read the pressure. Here's a copy of his original US patent and some information about him.

https://blog.wika.us/products/pressu...bourdon-gauge/

https://bourdonusa.com/products/pressure-gauges

https://upload.wikimedia.org/wikipedia/ ... ourdon.jpg

http://railroadfan.com/phpbb/download/f ... &mode=view

http://railroadfan.com/phpbb/download/f ... &mode=view

http://railroadfan.com/phpbb/download/f ... &mode=view

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http://railroadfan.com/phpbb/download/f ... &mode=view

http://railroadfan.com/phpbb/download/f ... &mode=view

Author:  Rick A [ Tue Nov 19, 2019 11:20 pm ]
Post subject:  Re: Eugene Bourdon and the Bourdon tube

You gotta love his mustache!

Author:  geoff1944 [ Thu Nov 21, 2019 1:21 am ]
Post subject:  Re: Eugene Bourdon and the Bourdon tube

Bourdon's original gauge was not practical for cold climates because the two ends of the tube, or "spring," were pointed down. Condensed water would drain out of the end which was connected to the steam line but would collect in the other end and freeze, bursting the tube. This design is called a "single spring" gauge because the tube is considered to be one "spring."

T. W. Lane patented an improvement to the Bourdon gauge in 1859 which solved this problem. Lane oriented the tube so both ends were pointed up instead of down. He then placed the connection to the steam line in the middle of the tube, at the bottom. Condensed water would then run out of both ends of the tube. This is called a double spring gauge because the tubes on either side of the bottom connection are each considered to be a separate spring.

Author:  Rick A [ Sat Nov 23, 2019 12:51 am ]
Post subject:  Re: Eugene Bourdon and the Bourdon tube

Thank you for the information. Now this Ashton gauge makes sense to me.


https://www.smokstak.com/forum/attachme ... 1574484591

Author:  softwerkslex [ Sat Nov 23, 2019 8:25 pm ]
Post subject:  Re: Eugene Bourdon and the Bourdon tube

geoff1944 wrote:
Bourdon's original gauge was not practical for cold climates because the two ends of the tube, or "spring," were pointed down. Condensed water would drain out of the end which was connected to the steam line but would collect in the other end and freeze, bursting the tube. This design is called a "single spring" gauge because the tube is considered to be one "spring."

T. W. Lane patented an improvement to the Bourdon gauge in 1859 which solved this problem. Lane oriented the tube so both ends were pointed up instead of down. He then placed the connection to the steam line in the middle of the tube, at the bottom. Condensed water would then run out of both ends of the tube. This is called a double spring gauge because the tubes on either side of the bottom connection are each considered to be a separate spring.


You could just rotate the gauge 90*.

Author:  Rick A [ Sat Nov 23, 2019 9:51 pm ]
Post subject:  Re: Eugene Bourdon and the Bourdon tube

The patent for the 1859 T.W. Lane gauge

http://railroadfan.com/phpbb/download/f ... &mode=view

http://railroadfan.com/phpbb/download/f ... &mode=view

http://railroadfan.com/phpbb/download/f ... &mode=view

http://railroadfan.com/phpbb/download/f ... &mode=view

http://railroadfan.com/phpbb/download/f ... &mode=view

http://railroadfan.com/phpbb/download/f ... &mode=view

Author:  Rick A [ Sat Nov 23, 2019 10:55 pm ]
Post subject:  Re: Eugene Bourdon and the Bourdon tube

more info about Bourdon.

https://heatinghelp.com/blog/the-metal-manometer/

Author:  Rick A [ Sun Nov 24, 2019 11:42 pm ]
Post subject:  Re: Eugene Bourdon and the Bourdon tube

The dead weight tester is the accepted way to check the accuracy of a guage. Here is an interesting article about the tester.

https://www.instrumentationtoolbox.com/ ... -with.html


http://railroadfan.com/phpbb/download/f ... &mode=view

http://railroadfan.com/phpbb/download/f ... &mode=view

http://railroadfan.com/phpbb/download/f ... &mode=view

http://railroadfan.com/phpbb/download/f ... &mode=view

http://railroadfan.com/phpbb/download/f ... &mode=view

Author:  Rick A [ Sat Nov 30, 2019 10:17 am ]
Post subject:  Re: Eugene Bourdon and the Bourdon tube

The gauge tester link from the last post.

https://www.instrumentationtoolbox.com/ ... -with.html

Author:  Rick A [ Thu Dec 05, 2019 4:58 pm ]
Post subject:  Re: Eugene Bourdon and the Bourdon tube

An nice comparison of the 2 gauges.

http://railroadfan.com/phpbb/download/f ... &mode=view

Author:  Rick A [ Sat Jan 25, 2020 6:07 pm ]
Post subject:  Re: Eugene Bourdon and the Bourdon tube

A couple of Bourdon gauges from my collection.




http://railroadfan.com/phpbb/download/f ... &mode=view

http://railroadfan.com/phpbb/download/f ... &mode=view

http://railroadfan.com/phpbb/download/f ... &mode=view

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