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US Patent: 627,075
Pipe-Wrench
Patentee:
Jireh  C. Gifford - Cambridge, MA

USPTO Classifications:
81/64, 81/65

Tool Categories:
wrenches : pipe wrenches : chain and strap wrenches

Assignees:
None

Manufacturer:
Gifford Pipe Wrench Company - Kittery, ME

Witnesses:
Fred E. Sands
Wm. Maynadier
Fred D. Stanley
H. P. Cuillo

Patent Dates:
Applied: Mar. 15, 1899
Granted: Jun. 13, 1899

Patent Pictures: [ 1 | 2 ]
Jireh C. Gifford patent June 13, 1899 , with incomplete example (strap & loop missing)
USPTO pdf tiff
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Description:
Strap wrench -- the strap is tightened by a hook on an adjustable sliding frame. The end of the strap has a metal loop to engage the hook.

The specifications disclaim any pertinent features appearing in British patent no. 10,674 of 1891.

Corresponding Canadian patent CA-65,360 granted Dec. 15, 1899 names William Quinby as assignee. Quinby was also named assignee for Fred E. Sands' patent 667,852; that patent is the Gifford wrench with a chain rather than fabric strap. Sands' patent 667,853 for an improved mode of attaching the strap to a Gifford wrench was assigned to the Gifford Pipe Wrench Company, of Maine.

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