Mesta Machine Company double helical tooth gear drive. 1905/1925.
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Mesta Machine Company double helical tooth gear drive. 1905/1925.
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Is that a big electric motor on the right side of the photo? Perhaps driving a shaft with 2 flywheels, and a small pinion gear for that monster gear? That monster generates some torque!!!
You can see the commutators and brushes on the right. The motor turns a flywheel and the smaller gears. The large gear drives a flywheel and the machine on the left...
Mesta Machine Company boring mill. 1905/1925.
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Mill control panel at the American Steel & Wire Co. Donora Works. 1915-1917.
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Attachment 44501
Ya think?
DC not AC...
Open hearth ladle. Jones & Laughlin Steel Corporation. 1930.
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Autoclave with multiplate bulletproof glass. Pittsburgh Plate Glass Company. 1940.
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Planer in the McKees Rocks Machine and Erecting Shop of the Pittsburgh and Lake Erie Railroad Company. April, 1904.
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