Talk:Sprengel pump

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The article claims the pumps operated continuously and without supervision. This is contrary to Menlo Park Reminiscences by Francis Jehl, who operated them in Thomas Edison's lab in the 1870's and who wrote that it was a constant job to lift the mercury and refill the upper container. In Edison's light bulb factory a couple of years after the first practical bulb of Edison's was developed, pumps were used to recirculate the mercury in modified pumps. The Sprengel as shown required an attendant. Edison (talk) 16:35, 14 October 2008 (UTC)


This article ought to be rewritten as it is largely a word-for-word version of the copyrighted material at this site. See also the February, 2008 issue of Chemistry World. - Astrochemist (talk) 01:34, 2 December 2008 (UTC)