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US Patent: 47,436
Improvement in Gear Cutting Rules
Patentee:
C. B. Long - Worcester, MA

USPTO Classifications:
33/494

Tool Categories:
rules
rules : rule graduations

Assignees:
None

Manufacturer:
E.A Stearns & Co. - Brattleboro, VT
The Stanley Rule & Level Co. - New Britain, CT

Witnesses:
Thos. H. Dodge
J. Henry Hill

Patent Dates:
Granted: Apr. 25, 1865

Patent Pictures:
USPTO pdf tiff
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Description:
Special markings which allows the number of cogs of a given pitch to be cut on a specified diameter wheel.

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