US Patent: 370,507 - Improvements in Monkey Wrenches


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US Patent: 370,507

Wrench
Improvements in Monkey Wrenches

Patentee:

Vandiver J. Van Horn (exact or similar names) - Shannon, KS

USPTO Classifications:

24/523, 81/174

Tool Categories:

wrenches : wrench adjustment types : screw adjust wrenches

wrenches : ratchet wrenches

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Patent Dates:
Applied:	Feb. 25, 1887
Granted:	Sep. 27, 1887

Patent Pictures:

Vandiver J. Van Horn patent Sept. 27, 1887

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Description:

The specifications claim an operational improvement over wrenches such as those in patents nos. 36,389, 168,360, and 274,545. In this patent, a compression spring between the adjusting collar and movable jaw allows for "ratchet" action when the long spring-form tail on the movable jaw is disengaged from the end of the adjusting collar.