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US Patent: 875,702
Wrench
Patentee:
Alfred G. Ely - New York, NY

USPTO Classifications:
453/58, 81/167

Tool Categories:
wrenches : wrench components : wrench jaw components
wrenches : nut wrenches

Assignees:
None

Manufacturer:
Trimont Manufacturing Company - Roxbury, MA

Witnesses:
Fred. S. Greenleaf
S. Wm. Lutton
Thos. A. Mulligan
Henry L. Conklin

Patent Dates:
Applied: Nov. 14, 1904
Granted: Jan. 07, 1908

Patent Pictures:
Alfred G. Ely patent January 7, 1908
USPTO pdf tiff
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Description:
The patent is an improvement on Ely's July 19, 1904 patent (no. 765,569), as applied to an adjustable nut wrench. The essential elements are the slotted shank of the movable jaw, and the nut retaining notch in the corresponding rib on the handle.

The patent has options for adjustable "monkey wrench" and box wrench variants.

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