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Both Ashcroft [15] and Mermin [16] wrote separate responses that were published in the same issue, addressing Menéndez's concerns. In his reply, Ashcroft wrote: "Over the years many readers have remarked that the initial edition of our book should 'not be touched'; it is just right in its treatments of the fundamentals."
Edward Ashcroft purchased Bourdon's American patent rights in 1852 and became a major manufacturer of gauges. Also in 1849, Bernard Schaeffer in Magdeburg, Germany patented a successful diaphragm (see below) pressure gauge, which, together with the Bourdon gauge, revolutionized pressure measurement in industry. [ 23 ]
1950s Budenberg pressure gauge showing pounds per square inch. The Budenberg Gauge Company was founded in 1918. The original parent company was Schäffer & Budenberg founded in 1850 by Bernhard Schäffer and Christian Friedrich Budenberg in Prussia. The Budenberg Gauge Company is now based in Altrincham, Greater Manchester.
Download as PDF; Printable version; In other projects Wikidata item; Appearance. ... The company manufactured pressure gauges, valves, cranes, and hoists. History
Bell nipple: An enlarged pipe at the top of a casing string that serves as a funnel to guide drilling tools into the top of the well.; Big bear: A big bear is a hitch (see hitch) that lasts a minimum of 50 straight days.
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