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US Patent: 504,041
Wrench
Patentee:
Samuel E. Kern - Bellevue, OH

USPTO Classifications:
81/111, 81/94

Tool Categories:
wrenches : alligator wrenches
wrenches : wrench adjustment types : screw adjust wrenches

Assignees:
None

Manufacturer:
M. H. Kern - Bellevue, OH

Witnesses:
C. Severance
Alex Mahon
Mamie Quilter
H. G. Edgerton

Patent Dates:
Applied: Jun. 02, 1893
Granted: Aug. 29, 1893

Patent Pictures:
Samuel E. Kern patent August 29, 1893, with KERN wrench
USPTO pdf tiff
Google Patents
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Description:
Screw adjustment moves a hinged jaw by means of an intermediate link.

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