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US Patent: 390,731
Carriage Wrench
Frederick A. Wegner - Three Rivers, MI

USPTO Classifications:

Tool Categories:
wrenches : axle nut wrenches : axle nut wrenches that lock nut to wheel hub


Not known to have been produced

John E. Wiles
M. B. O'Dogherty
Fred Wegner, Sr.
O. F. Bean

Patent Dates:
Applied: Sep. 20, 1887
Granted: Oct. 09, 1888

Patent Pictures:
Frederick A. Wegner patent October 9, 1888
USPTO pdf tiff
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A double-sized socket with a set screw provides for two sizes of axle nuts. The hooks on the ends of the spring strap are padded to prevent damage to the finish on the wheel spokes.

This works to fix the axle nut to the wheel. An axle nut wrench conforming to this idea and Wegner's April 22, 1890 successor patent (no. 426,224) was produced by Wegner at Chicago.

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