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File:Herschel Venturi meter letter.jpg

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English: The letter from Clemens Herschel to Dr. William Unwin, referred here as W. C. Unwin, June 5, 1888 on Holyoke Water Power Company stationary, describing his development of the Venturi meter.


This letter is cited in–

(August 17, 1935). "Invention of the Venturi Meter". Nature 136 (3433): 254. DOI:10.1038/136254a0. "[The article] reproduces a letter from Herschel to the late Dr. Unwin describing his invention of the Venturi Meter. The letter is dated June 5, 1888, and addressed from the hydraulic engineer's office of the Holyoke Water Power Co., Mass. In his letter, Herschel says he tested a one-inch Venturi Meter, under 210 ft. head: 'I am now satisfied that here is a new and pregnant principle to be applied to the art of gauging fluids, inclusive of fluids such as compressed air, illuminating or fuel gases, steam, etc. Further, that the shape of the meter should be trumpet-shaped in both directions; such a meter will measure volumes flowing in either direction, which in certain localities becomes a useful attribute...'"
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Source Canal Park Committee Records, South Hadley Public Library
Author Clemens Herschel; Holyoke Water Power Company
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current21:08, 24 September 2018Thumbnail for version as of 21:08, 24 September 20183,500 × 2,357 (1.26 MB)Simtropolitan (talk | contribs){{Information |description ={{en|1=The letter from {{w|Clemens Herschel}} to Dr. {{w|William Unwin}}, referred here as W. C. Unwin, June 5, 1888 on {{w|Holyoke Water Power Company}} stationary, describing his development of the {{w|Venturi meter}}. <br> This letter is cited in– {{cite journal|url=https://www.nature.com/articles/136254a0|page=254|volume=136|issue=3433|date=August 17, 1935|journal=Nature|doi=10.1038/136254a0|title=Invention of the Venturi Meter|duplicate_quote=|access-date=Ma...

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