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US Patent: 55,107
Improved Screw Wrench and Hammer
Nut Wrench
Patentees:
Lewis S. Hoyt (exact or similar names) - Croton Falls, NY
Elias G. Hoyt (exact or similar names) - Croton Falls, NY

USPTO Classifications:
81/118

Tool Categories:
combination tools
wrenches : wrench combination tools
woodworking tools : hammers

Assignees:
None

Manufacturer:
L. S. Hoyt - Croton Falls, NY
E. G. Hoyt - Croton Falls, NY

Witnesses:
William Turk
David Travis
J. W. B. Carrington
Cyrus L. Toplift

Patent Dates:
Granted: May 29, 1866

Patent Pictures:
L. S. -- E. G. HOYT patent May 29, 1866 with example of HOYT hammer wrench
USPTO (New site tip)
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Description:
Spring-loaded hinged jaws which are closed with a bolt and wing-nut form an adjustable nut wrench on the end of an all-metal hammer. Some well-preserved examples show "PAT MAY 29, 1866" adjacent to the pivot bolt.

Similar styled jaws on a shank with "triangular hang hole" appear on a wrench marked "PAT 1866."

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