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US Patent: 1,275,593
Brace
Patentees:
Guy M. Overtree (exact or similar names) - Fort Collins, CO
Volley V. McMillen (exact or similar names) - Lafayette, CO

USPTO Classifications:
81/30, 81/57.29

Tool Categories:
wrenches : brace wrenches
woodworking tools : braces : ratchet braces

Assignees:
None

Manufacturer:
Ideal Screw Wrench Co. - Denver, CO

Witnesses:
G. J. Rollandet
L. Rhoades
F. H. Cuno

Patent Dates:
Applied: Feb. 21, 1917
Granted: Aug. 13, 1918

Patent Pictures: [ 1 | 2 | 3 ]
Patent 1,275,593 - edited drawing
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Description:
A brace wrench with an additional crank driving the socketed holding member independent of the main crank. This additional crank has a worm gear to drive a gear on the shaft holding the socket. This design was aimed at the "4th Connecting Rod" bolts in Model T Ford engines. Known examples marked "IDEAL WRENCH CO. DENVER COLO. PATD Aug. 8, 1918."

(entry updated December.Dec. 19, 2025)

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