Public domain
Two new tools were set in the New Britain-Gridley lathe, pictured above, to adapt it for the cutting of twenty-millimeter shell booster parts. The new parts are an eccentric spindle, which may be seen attached to a driving rod in the center of the machine, and a thread rolling attachment. In peaceti
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Credit lineTwo new tools were set in the New Britain-Gridley lathe, pictured above, to adapt it for the cutting of twenty-millimeter shell booster parts. The new parts are an eccentric spindle, which may be seen. 1942-01-01. United States. Office For Emergency Management. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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