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US Patent: 685,282
Cylinder Wrench
John P. Johnson - Storden, MN

USPTO Classifications:
81/177.85, 81/58.3, 81/DIG.8

Tool Categories:
wrenches : cylinder tooth wrenches


J. P. Johnson - Storden, MN

C. H. Turner
Harry Kilgore
Anne S. Read
F. D. Merchant

Patent Dates:
Applied: Feb. 04, 1901
Granted: Oct. 29, 1901

Patent Pictures: [ 1 | 2 ]
John P. Johnson Pat. October 29, 1901
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There is an offset bend in the shank so the "T" handle is in line with the sockets. The socket pair has opposite-facing teeth, with corresponding opposite-facing teeth on the pivoting frame member holding the connecting shank for the socket pair. A 1907 ad shows two sizes of square and two sizes of hex socket pairs.

Marketed as the "BOSS" or "IMPROVED BOSS" cylinder tooth wrench. A trade announcement in 1902 noted the Minneapolis Implement Co. had an exclusive five-year distribution contract for the wrench.

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