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US Patent: 591,893
Wrench
Patentee:
Edwin Blake Smith (exact or similar names) - Manchester, England

USPTO Classifications:
81/160, 81/166, 81/DIG.5

Tool Categories:
wrenches : wrench adjustment types : quick adjust wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
H. Richard Wobse
George Davies
Charles A. Davies
Patent Dates:
Applied: Feb. 10, 1897
Granted: Oct. 19, 1897

Patent Pictures:
Edwin Blake Smith patent October 19, 1897
USPTO (New site tip)
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Description:
Combination quick and screw-adjust nut wrench. The hole through the adjusting nut is oval, with threads only on the sides. The shank of the movable jaw is flat, with threads on the edges. A quarter turn of the adjusting nut engages or disengages the threads.

The patent includes the formation of the fixed jaw and handle of side plates and spacers.

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