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US Patent: 867,272
Wrench
Patentee:
Charles Theoflus Holman (exact or similar names) - Meadville, PA

USPTO Classifications:
81/134, 81/174, 81/DIG.4, 81/DIG.6

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

Assignees:
None

Manufacturer:
H. W. Baum - Evans Mills, NY

Witnesses:
Robert Everett
F. B. Keefer
G. H. Birch
F. P. Foreman

Patent Dates:
Applied: Jun. 29, 1907
Granted: Oct. 01, 1907

Patent Pictures: [ 1 | 2 ]
Charles T. Holman patent Oct. 1, 1907
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Description:
Screw-adjustable rack within the main shank of the wrench, combined with a spring-loaded pawl within the body of the movable jaw. This arrangement provides quick- and screw-adjustment for the wrench opening.

Known example stamped, "MF'D BY H. W. BAUM EVANS MILLS, N.Y. PAT. OCT. 1, 1907" differs in some details from the patent drawing - the shape of the pawl in the movable jaw and aspects of the adjusting knob at the end of the handle.

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