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US Patent: 387,873
Wrench
Improvement in Sliding-Jaw Wrenches
Patentee:
Henry G. T. Glazebrook - Simcoe, ON Canada

USPTO Classifications:
81/154

Tool Categories:
wrenches : wrench adjustment types : quick adjust wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
J. H. Ansley
G. E. Jackson
Frank Dorian
Harold MacKayr

Patent Dates:
Applied: Sep. 20, 1886
Granted: Aug. 14, 1888

Patent Pictures:
Henry G. T. Glazebrook patent August 14, 1888
USPTO pdf tiff
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Description:
The interior wedge bites into the shank to hold the adjustment; the spring loaded wire loop will pull the wedge back to allow the movable jaw to slide.

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