US Patent: 597,740 - Parallel Pliers


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US Patent: 597,740

Parallel Pliers

Patentee:

Joshua Pusey (exact or similar names) - Lima, PA

USPTO Classifications:

24/136R, 30/237, 81/128, 81/326, 81/354

Tool Categories:

pliers

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Walter C. Pusey

John R. Nolan

Patent Dates:
Applied:	Jan. 07, 1897
Granted:	Jan. 25, 1898

Patent Pictures:

Joshua Pusey patent January 25, 1898

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Description:

The key features that allow parallel jaw motion are the elongated slot for one of the handle "pivot" points, and the tongues to guide the sliding movement of one jaw.

Alternative constructions shown includes provision for a central tongue rather than paired tongues, for a wire cutter, for a thumb screw to clamp the jaw setting, and for a spring to return the jaws to "normal open" position.