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US Patent: 746,113
Wrench
Patentee:
Charles S. Leland - Mount Desert, ME

USPTO Classifications:
81/128, 81/172

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

Assignees:
None

Manufacturer:
Richards Tool Co. - Boston, MA

Witnesses:
Gladys L. Thompson
A. C. Fernald
C. S. Fernald

Patent Dates:
Applied: Mar. 20, 1903
Granted: Dec. 08, 1903

Patent Pictures: [ 1 | 2 ]
Charles S. Leland patent December 8, 1903
USPTO pdf tiff
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Description:
A helical thread internal sleeve in the handle engages spur teeth on the extended base of the movable jaw.

The helical thread feature apparently was combined with features from patent no. 776,944 in the BOSTON Time-Saving Wrench.

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