US Patent: 139,622 - Improvments in Monkey Wrenches


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US Patent: 139,622

Wrenches
Improvments in Monkey Wrenches

Patentees:

Thomas J. Smith (exact or similar names) - St. Louis, MO

John Lee (exact or similar names) - St. Louis, MO

USPTO Classifications:

81/149

Tool Categories:

wrenches : wrench adjustment types : quick adjust wrenches

Assignees:

Thomas J. Smith - St. Louis, MO

John Lee - St. Louis, MO

John J. Rich - St. Louis, MO

John Gallagher - St. Louis, MO

Manufacturer:

Not known to have been produced

Witnesses:

Edward J. Drewer

Philip Doherty

Patent Dates:
Applied:	Dec. 19, 1872
Granted:	Jun. 03, 1873

Patent Pictures:

Smith & Lee Pat. June 3, 1873

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Description:

The handle attached to the movable jaw generates a combination of rack and wedge action to move the jaw and hold the adjustment. The back side of the shank has fine teeth that engage similar teeth inside the frame of the movable jaw.

Improved by patent no. 145,953.