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US Patent: 13,456
Wrench
Dale's Adjustable Reversible Ratchet-Wrench
Patentee:
John D. Dale - Philadelphia, PA

USPTO Classifications:
81/155, 81/58.1

Tool Categories:
wrenches : ratchet wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Thomas J. Bewley
George W. Ford

Patent Dates:
Granted: Aug. 21, 1855

Patent Pictures:
John D. Dale patent August 21, 1955
USPTO pdf tiff
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Description:
The ratchet head contains adjustable jaws. The jaw adjustment is made by helical threads actuated by protruding knobs. The wrench is reversed by removing and reversing the ratchet head structure.

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