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US Patent: 395,595
Wrench
Improvements in Sliding-Jaw Ratchet Wrenches
Patentee:
Albion K. Spaulding - North Belgrade, ME

USPTO Classifications:
81/128, 81/140, 81/DIG.4

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

Assignees:
None

Manufacturer:
Unknown

Witnesses:
H. B. Brown
W. Burris
Emerson N. Trask
Chester A. Messer

Patent Dates:
Applied: Apr. 13, 1888
Granted: Jan. 01, 1889

Patent Pictures: [ 1 | 2 ]
Albion K. Spaulding patent January 1, 1889
USPTO pdf tiff
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Description:
A spring-loaded pawl on the movable jaw engages rack teeth inset on a piece sliding in the side of the main shank. A tapering face on the ferule of the handle can be adjusted to slide the rack toothed piece to take up any slack in the adjustment.

A known example has no discernible markings; after restoration, the owner surmises it could have been produced at the Diamond Wrench Co. shops.

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