Talk:Lewis H. Nash

Untitled
I have permission from the Nash family, and Nash Engineering Co. to post this article. If the copyright info is supposed to be appended some other way (I was told that I needed to include it to avoid having the article deleted), then please tell me how.

Lewis H. Nash invented, among other things, the liquid ring vacuum pump, which has an article of its own. It seems only right that people can see something about the inventor.
 * As mentioned elsewhere, refer to WP:PERMISSION.--SarekOfVulcan (talk) 19:02, 14 January 2009 (UTC)

Article Issues
Notwithstanding that the copyvio issue is resolved, the whole tone and structure of this article is wrong for Wikipedia. It needs a major rewrite. Mayalld (talk) 15:28, 15 January 2009 (UTC)

My guess is you object to the conversational tone of the first 2 paragraphs. I could change them to: "In 1869, Lewis H. Nash completed the courses of training given by the public schools of South Norwalk, CT. He wanted to continue his education, but as his parents were unable to pay for college, so he took an apprenticeship course as a machinist at the Norwalk Iron Works. During this time, Lewis learned of a new institution, called Stevens Institute of Technology, which was being organized solely for the purpose of training men in the new area of Mechanical Engineering. He joined its third class, was elected into Tau Beta Pi, a coveted honor for scholastic merit, and graduated as class valedictorian with the degree of M.E." Amyharold (talk) 15:36, 15 January 2009 (UTC)Amy Harold
 * Sounds reasonable -- go for it. Don't forget to include wikilinks to other articles as appropriate...--SarekOfVulcan (talk) 15:42, 15 January 2009 (UTC)
 * Did it myself, never mind. :-)--SarekOfVulcan (talk) 17:08, 15 January 2009 (UTC)

Observation

I am a great great grandson of Lewis H. Nash so I'd like to make a few observations in helping to bring this biography up to par. Would it be helpful to categorize / segment his personal versus professional lives? I see this seems standard for many Wikipedia biographies (and it appears the author in this instance has lumped everything under "career")? I will print this and run it by my writing counselors at Mills sometime in the next two weeks. Please do not delete it. _Justin Philip Nash —Preceding unsigned comment added by 71.135.113.209 (talk) 07:26, 29 March 2010 (UTC)

Rotary Piston meter patent.
Hi, I'm having some trouble with the patent in establishing exactly what it is he designed as a "rotary piston" meter.

It would be nice if this article included a link to the patent which the Smithsonian identifies as 211,852 1879.

There are two types of single element positive displacement meters today used for domestic water. The nutating disc meter generally thought to be a US invention from around 1884/5 but this is debatable.The Smithsonian has one attribued to Nash but manufactured at a later date still. Other sources show the nutating disc meter as early as 1850 and deriving from an 1830s pump. I don't know what weight to give to that.

The other type is the rotary piston meter. As currently manufactured these can be traced back to Tylors of London who manufactured the "British Patent Rotary water meter" from the 1860s. I have illustrations of them from that time and they are clearly the precursor of the current design. For the Nash design to be a revision of this would put it too late at 1879. the design would have either died or been revised much earlier to have survived.

The problem is the term "rotary piston" isn't used with any care for exactitude and it seems at times to be used as a generic term for any moving element (including in some patents what claims to be a rotary piston is actually a gear type meter).

The term "piston" as a generic for the moving element probably comes from the reciprocating piston meter of the first half of the 19th century. In its early form it shows its ancestry as an adaptation fro steam engine cylinders, two cylinders being linked together with an external valve linkage. Later versions (both by Tylors again) have sleeve valves.

But I'd just like to track down the Nash patent (the US patent office has 211,852 of 1879 as a woodworking plane.... there is no D0211852 for 1879 but there is for 1962. It would help to illustrate the meter held by the Smithsonian or find and publsih the images from the original patent. — Preceding unsigned comment added by MeyerMeyer (talk • contribs) 18:45, 17 July 2013 (UTC) The reciprocating piston meter was patented in 1824 by Scottish Clockmaker Thomas Kennedy Snr. (http://www.glenfield.co.uk/history/) It is not, as claimed, the worlds first water meter but the worlds first positive displacement water meter. It is a bit difficult to claim it as the world's frist positive displacement meter as this is alleged to be the wet drim meter used for gases 9and later adapted as the 1825 patented Parkinson rotary drum meter - the uncertainty is because while both act as positive displacement meters, it might be argued that neither is a true PD meter because, under certain circumstances, unregsitered flow can flood through the meters. This is not the case with the kennedy meter. A variation of this design is in 1855 claimed to be the first US water meter. (Smithsonian collection). — Preceding unsigned comment added by MeyerMeyer (talk • contribs) 12:47, 26 June 2016 (UTC)

Nutating Disc Meter
The Nash patents I have tracked on nutating disc and rotary piston do not, as is usual today, reference earlier designs or overseas patents. The first positive displacement meter is believed to be the reciprocating piston meter. Originally intended for the UK water meter market where the Napoleonic invasion scare caused consumers to install gravity tanks against possible supply interruptions, this created a high proportion of low flow beyond the capability of inferential meters to deliver. But in the 1860s the rotary piston meter was introduced by Tylor's of London. This is the precursor of the design that Nash produced by adding firstly the piston web and secondly drilling holes in the web. This design has now survived virtually unchanged till today. Nash then seems to be the major contributor to the nutating disc design but the principle originates in an 1821 patent for a hydraulic engine and is thus adapted to be a water meter. (Google: Romping Lion"). MeyerMeyer (talk) 21:52, 19 November 2014 (UTC)

Proposed merge with Nash Engineering Company
there's extensive overlap.  DGG ( talk ) 15:39, 2 August 2015 (UTC)