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Object Record

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Object Name Tool
Catalog Number 1997.46.3
Collection Tool
Other Name Automatic Pinion/Wheel Cutting Machine
Date c.1888
Description This machine cuts pinions using a circular loading plate to hold the blanks, a cam-driven picker arm to feed the machine, and a form cutter to cut the teeth. The number of teeth cut on a pinion or wheel was controlled by a count wheel on the spindle. By using a feeding tube and a fly form cutter, the machine could be adapted to cut either individual wheels or stacks of wheels. Due to the automatic feeding mechanism, this machine did not require an individual to constantly monitor its operation. Instead, an employee could supervise several of these cutters running simultaneously.
Number 3644 engraved. Circular disk has "18S Center Pinion 80T."
Maker Duane H. Church
Material steel, brass
Place of Origin Waltham, Massachusetts, USA