whitworth

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whitworth ball
A prejectile used in the Whitworth gun
whitworth gun
A form of rifled cannon and small arms invented by Sir Joseph Whitworth, of Manchester, England
Sir Joseph Whitworth
born Dec. 21, 1803, Stockport, Cheshire, Eng. died Jan. 22, 1887, Monte-Carlo, Monaco British mechanical engineer. Working for Henry Maudslay, he devised a scraping technique for making a true plane surface. He followed this with a measuring machine and a system of accurate dimensional standards or master gauges to go with it, and screws with standardized threads (1841), among other innovations. His machine tools became internationally known for their accuracy and quality
whitworth
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