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US Patent: 1,299,510
Wrench
Patentee:
Robert A. Rosander - Brooklyn, NY

USPTO Classifications:
81/139

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

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

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

Witnesses:
Unknown

Patent Dates:
Applied: Dec. 29, 1916
Granted: Apr. 08, 1919

Reissue Information:
Reissued as RE15,135 (Jun. 28, 1921)

Patent Pictures: [ 1 | 2 ]
Robert A. Rosander Pat. April 8, 1919
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Description:
The rotating collar has a slot running its width which allows the dog engaging the fine rack teeth on the shank to release. Then the movable jaw is free to slide. The working faces are shaped to adjust to square and hex nuts and the interior of recessed face drain plugs. The manufacturer is noted in Ken Cope's "American Wrench Makers 1830-1930;" the STAFF wrench appears in "new product" announcements in early 1920.

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