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US Patent: RE15,135
Wrench
Patentee:
Robert A. Rosander - Brooklyn, NY

USPTO Classifications:
81/129.5, 81/139, 81/148

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

Assignees:
Romaro Machine and Tool Co. - New York, NY

Manufacturer:
Romaro Machine and Tool Co. - Brooklyn, NY

Witnesses:
Unknown

Patent Dates:
Applied: Nov. 04, 1919
Granted: Jun. 28, 1921

Reissue Information:
Reissue of 1,299,510 (Apr. 08, 1919)

Patent Pictures:
Robert A. Rosander Reissue Pat. June 28, 1921
USPTO pdf tiff
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Description:
The overall design is a quick-adjust wrench for hex and square nuts and recessed socket head drain plugs. The rotating collar tightens or loosens a dog which clamps the movable jaw to fine rack teeth on the wrench shank. The collar has an internal slot running its width so a partial turn of the collar releases or engages the dog. The shank is described as square.

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