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76:, Russia, displays the Nartov's copying lathe used for ornamental turning: making medals and guilloche patterns designed by Nartov in 1721. Nartov's lathe duplicated the pattern from a template to a blank, cutting to the preset scale. A probe traced the template and the cutter cut accordingly. The cutter was set on the same axis as the probe, but was controlled by the screw with the smaller step, which ensured the scaling. It could cut minute detail, but worked very slowly. The duplicating lathe, as well as other machinery of Nartov's invention was described, with diagrams, in Nartov's unpublished manuscript,
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It includes
Nartovs's biography, his inventions, and illustrations and extended excerpts from Nartov's unpublished manuscript describing various machinery, stored in State Public Library in
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From the
American System to Mass Production, 1800β1932: The Development of Manufacturing Technology in the United States
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making in the 1820s, after it was invented. Blanchard's copying lathe traced a model to turn
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Water-powered
Blanchard lathe used for duplicating gun stocks from the 1850s.
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Harpers Ferry Armory and the New
Technology: The Challenge of Change
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126:(translated in 1966 from Russian original ΠΠΈΠΊΡΠΎΡ ΠΠ°Π½ΠΈΠ»Π΅Π²ΡΠΊΠΈΠΉ (
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that creates shapes identical to the specified pattern.
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