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US Patent: 429,105
Chicago Spoke Grip
Frederick C. Avery - Chicago, IL

USPTO Classifications:
269/241, 411/409, 411/415, 81/163

Tool Categories:
wrenches : spoke nipple wrenches
work holding : vises

Frederick C. Avery - Chicago, IL
Charles L. Jenness - Chicago, IL


J. R Andrews
Wm. M. Rheem
Irwin Veeder
C. L. Jenness

Patent Dates:
Applied: Nov. 04, 1889
Granted: May 27, 1890

Patent Pictures: [ 1 | 2 ]
Frederick C. Avery patent May 27, 1890
USPTO pdf tiff
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The jaw openings are different sizes. The thumb screw shank has two sizes and pitches of threads so the greatest pressure on the threads occurs when the largest number of threads are engaged.

One or more notches in the "wing" of the thumb screw act as wrenches.

This was envisioned as a small pocket tool for spokes and spoke nipples of bicycle wheels. It could be scaled up in size to serve as a pipe wrench.

Advertised in 1893 as the "CHICAGO SPOKE GRIP, PAT. MAY 27, 1890." The ad was reprinted on pg. 11 of the Dec. 1992 Missouri Valley Wrench Club Newsletter.

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