US Patent: 947,346


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US Patent: 947,346

Wrench

Patentee:

Herman A. Paquette (exact or similar names) - Chicago, IL

USPTO Classifications:

81/111

Tool Categories:

wrenches : alligator wrenches

Assignees:

Richards Mfg. Co. - Aurora, IL

Manufacturer:

Richards-Wilcox Mfg. Co. - Aurora, IL

Witnesses:

Patent Dates:
Applied:	Mar. 15, 1909
Granted:	Jan. 25, 1910

Patent Pictures: [ 1 | 2 ]

Herman A. Paquette patent January 25, 1910

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Description:

This adjustable alligator wrench has a hinged toothed piece attached to the movable jaw that has teeth which engage teeth on the back of the main stock. The engagement is held in place with a swinging spring steel latch. This was produced as the SHARK wrench. Two sizes are known.

Compare this approach to Halvor Christopherson's patent no. 906,614.