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US Patent: 178,780
Wrench
Patentee:
David H. Jarrard - Talladega, AL

USPTO Classifications:
81/134

Tool Categories:
wrenches : wrench adjustment types : quick adjust wrenches
wrenches : wrench combination tools

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Thomas Hayden
James H. Coker
Villette Anderson
Francis J. Masi

Patent Dates:
Applied: Apr. 15, 1876
Granted: Jun. 13, 1876

Patent Pictures:
David H. Jarrard Pat. June 13, 1876
USPTO pdf tiff
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Description:
The movable jaw is held in position by a tooth on the swinging handle that engages one of a series of serrations on the main shank. A tension spring tends to hold the handle in the closed position. The entire movable jaw structure can be slid off the main shank to facilitate the use of the hammer. The end of the handle has a socket to hold a bit or screwdriver.

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