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US Patent: 743,942
Ratchet Wrench
Patentee:
John E. Sinclair - Worcester, MA

USPTO Classifications:
81/62

Tool Categories:
wrenches : ratchet wrenches

Assignees:
None

Manufacturer:
Lowell Wrench Company - Worcester, MA

Witnesses:
T. C. Cutler
H. R. Sinclair

Patent Dates:
Applied: May 02, 1903
Granted: Nov. 10, 1903

Patent Pictures: [ 1 | 2 ]
John E. Sinclair patent November 10, 1903
USPTO pdf tiff
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Description:
Reversible ratchet with pawls adjusted by sliding actuator controlled from the end of the handle. This is a modification and improvement on the 1886 patent (no. 349,007).

It was eventually supplanted by further evolution in patent no. 1,177,764.

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