US Patent: 1,453,898


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Wrench

Patentee:

Frederick E. Walden (exact or similar names) - Worcester, MA

USPTO Classifications:

81/111, 81/92

Tool Categories:

wrenches : ratchet wrenches

Assignees:

Walden-Stax Manufacturing Co. - Stoneham, MA

Manufacturer:

Not known to have been produced

Witnesses:

none listed

Patent Dates:
Applied:	Dec. 18, 1920
Granted:	May 01, 1923

Patent Pictures:

Frederick E. Walden patent May 1, 1923

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Description:

Application renewed Nov. 11, 1922.

The spring of the loop provides enough flex for ratchet action. Compare these designs to those in patent no. 1,437,458. In this design, the extra "lip" is to help with holding hexagonal nuts or bolt heads.

These could be made of square or round rod; the "S" form in Fig. 5 could also be made of channel iron.