US Patent: 995,947


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US Patent: 995,947

Wrench

Patentee:

John Archie Borland (exact or similar names) - Mina, NV

USPTO Classifications:

81/103

Tool Categories:

wrenches : pipe wrenches

wrenches : wrench adjustment types : quick adjust wrenches

Assignees:

John Archie Borland - Mina, NV

Earl Covel - Cincinnati, OH

Manufacturer:

Not known to have been produced

Witnesses:

Patent Dates:
Applied:	Jun. 03, 1910
Granted:	Jun. 20, 1911

Patent Pictures:

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Description:

This is a quick-adjust "Stillson" pipe wrench. The movable jaw is held by a toothed catch. The catch is on a rocking yoke, and held in engagement by a leaf spring. The movable jaw is housed in a rocking frame, with a compression spring to extend it.