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US Patent: 574,487
Wrench
Patentee:
Henry J. Kapka - Charles City, IA

USPTO Classifications:
81/171, 81/184, 81/356, 81/359, 81/401

Tool Categories:
wrenches : wrench adjustment types : screw adjust wrenches
wrenches : wrench adjustment types : auxiliary levers on wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
George Allan
W. J. Sankey
J. W. Brown
B. S. Steadwell

Patent Dates:
Applied: Aug. 19, 1896
Granted: Jan. 05, 1897

Patent Pictures:
Henry J. Kapka patent January 5, 1897
USPTO pdf tiff
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Description:
Screw adjust wrench with supplementary lever to increase the strength of the grip. The wrench includes supplemental pipe grips.

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