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US Patent: 1,243,860
Wrench
Socket Wrench
Patentees:
Charles A. Olson - Geneva, IL
Claude H. Toombs - Geneva, IL

USPTO Classifications:
279/35, 411/918, 81/112

Tool Categories:
wrenches : wrench adjustment types : quick adjust wrenches
wrenches : socket wrenches

Assignees:
None

Manufacturer:
Hill Pump Valve Co. - Chicago, IL

Witnesses:
Robert H. Weir
H. Morner Humason

Patent Dates:
Applied: Mar. 10, 1915
Granted: Oct. 23, 1917

Patent Pictures: [ 1 | 2 ]
Charles A. Olson and Claude H. Toombs patent Oct. 23, 1917
USPTO pdf tiff
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Description:
Tapered sliding jaws in a tubular case are retracted by springs which act to close them. The jaws are advanced and opened by a pin handle which extends through them and a pair of slots in the tubular case.

Advertised in 1915 as the UTILITY set of self-adjusting sockets with rod handles, and as the head of a folding brace wrench. The brace handle is described in pat. no. 1,243,861.

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