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US Patent: 510,023
Nut Lock
Patentee:
Commodore P. Howell (exact or similar names) - Chattanooga, TN

USPTO Classifications:
411/87, 411/89, 411/978

Tool Categories:
wrenches : auxiliary wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
J. F. Coleman
E. A. Finckel
Wm. H. Finckel
Charles N. Larner

Patent Dates:
Applied: Sep. 16, 1893
Granted: Dec. 05, 1893

Patent Pictures:
Commodore P. Howell patent December 5, 1893
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Description:
The patent is for the concept of a nut coordinated with a ratchet-like nut lock, along with a wrench designed to work with the nut. In the specifications and drawing, the nut is shaped like a ratchet wheel, and the wrench has a pawl. The working context for this nut lock system is the fish plates connecting railroad rails.

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