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US Patent: D28,512
Wrench Frame
Robert Cosmos Ellrich - Southington, CT

USPTO Classifications:
81/176, D8/22

Tool Categories:
wrenches : wrench components : wrench handle components

Peck, Stow & Wilcox Co. - Southington, CT

Peck, Stow & Wilcox Co. - Southington, CT

E. M. Stannard
Stephen Walkley
P. J. Eagan
A. W. Stipek

Patent Dates:
Applied: Dec. 23, 1896
Granted: Apr. 26, 1898

Patent Pictures: [ 1 | 2 ]
Robert C. Ellrich design patent April 26, 1898
USPTO pdf tiff
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The design shows the fixed jaw and shank of a bicycle wrench; the shank has a slot running the length of travel for the movable jaw, and teeth for the operation of an adjusting worm on the movable jaw.

The form was used in the SNUGFIT bicycle wrench, marketed in 1897.

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