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US Patent: 797,538
Wrench
Patentee:
Charles C. Spery (exact or similar names) - Rockford, IL

USPTO Classifications:
81/116

Tool Categories:
wrenches : alligator wrenches

Assignees:
None

Manufacturer:
Unknown

Witnesses:
L. L. Morrison
Frank A. Ticknor
G. A. Taubenschmidt
Nelli E. Ennett

Patent Dates:
Applied: Jun. 08, 1905
Granted: Aug. 15, 1905

Patent Pictures:
Charles C. Spery patent August 15, 1905
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Description:
The adjustment means is a screw which slides a cone-shaped wedge in and out between the bases of the swinging jaws of this alligator wrench. A leaf spring between the jaws tends to hold them open.

Visible markings on a known example include "THE CRESCENT" and the patent date.

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