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  • Subject: Drilling & boring machinery
(6 results)



Display: 20

    • Drilling holes into battery terminals at Proof Machine & Brass Foundry

    • Proof Machine & Brass Foundry; Employees; Foundries; Electric batteries; Machine industry; Clark Cable Corporation; Brass castings; Drilling & boring machinery; Drilling
    • Employee of Proof Machine & Brass Foundry uses drilling equipment to drill holes into battery terminals. Proof Machine & Brass Foundry was a non-ferrous foundry making brass battery terminals located at 936 East 72nd Street in Cleveland, Ohio....
    • Ralph J. Perk climbs up a drilling rig

    • Perk, Ralph J.; Drilling & boring machinery; Natural gas
    • "Mayor Ralph J. Perk climbs up a drilling rig that began searching for natural gas yesterday on city-owned property at the Warrensville Workhouse. The well is the first of five to be drilled on the property. Any gas found will be offered to...
    • Proof Industries employees using drill presses

    • Proof Industries; Clark Cable Corporation; Machine industry; Employees; Drilling & boring machinery; Hydraulics
    • Employees of Proof Industries, a division of Clark Cable Corporation, use drill presses for the manufacturing of hydraulic valves. Clark Cable Corporation was incorporated for the purpose of manufacturing automotive electrical accessories such as...
    • Betts Vertical Boring Mill at Cleveland Tank Plant

    • Cleveland Tank Plant; World War II; General Motors Corp.; Korean War; Defense industry; Drilling & boring machinery
    • "August 1, 1951 -- A 24 foot Betts Vertical Boring Mill is shown as it machines an 84-inch diameter surface for mounting the tank's 20 ton turret ring and race assembly. Tolerances down to thousandths of an inch can be held on this large surface,...
    • Cleveland Tank Plant boring mill

    • Cleveland Tank Plant; World War II; General Motors Corp.; Korean War; Defense industry; Drilling & boring machinery
    • "It Usually Takes a Machine twice this big to build some of the Walker Bulldog tank parts. But with a little persistence and a lot of ingenuity, a group of workers headed by Walter Millington, superintendent of methods, redesigned this one for the...

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