High-quality black-and-white photographs of large old machines and tools

[Jon]

Mesta Machine Company double helical tooth gear drive. 1905/1925.

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[hemmjo]

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!!!

[IntheGroove]

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...

[Jon]

Mesta Machine Company boring mill. 1905/1925.

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[Jon]

Mill control panel at the American Steel & Wire Co. Donora Works. 1915-1917.

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[Frank S]

Ya think?

[IntheGroove]

DC not AC...

[Jon]

Open hearth ladle. Jones & Laughlin Steel Corporation. 1930.

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[Jon]

Autoclave with multiplate bulletproof glass. Pittsburgh Plate Glass Company. 1940.

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[Jon]

Planer in the McKees Rocks Machine and Erecting Shop of the Pittsburgh and Lake Erie Railroad Company. April, 1904.

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