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US Patent: 42,239
Improvement in Wrenches
Improved Screw-Wrench
Patentees:
Charles R. Thorn - Clinton Station, NJ
Alfred Leigh - Clinton Station, NJ

USPTO Classifications:
81/150, 81/58.5

Tool Categories:
wrenches : ratchet wrenches
wrenches : wrench components : wrench handle components

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
O. S. Kreamer
R. J. Hoffman

Patent Dates:
Granted: Apr. 05, 1864

Patent Pictures:
Hun & Leigh Pat. Apr. 5, 1864
USPTO pdf tiff
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Description:
A ratchet head with an elliptical opening is the base for a set of adjustable jaws. The end of the handle has a socket for a screwdriver bit.

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