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US Patent: 56,980
Improved Wrench for Nuts of Carriage-Axles
Patentee:
Charles N. Morgan - Granby, MA

USPTO Classifications:
81/75

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Edward H. Hyde

Patent Dates:
Granted: Aug. 07, 1866

Patent Pictures:
Charles N. Morgan Pat. Aug. 7, 1866
USPTO pdf tiff
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Description:
A "T"-handled screw with left- and right-handed threads clamps sliding jaw elements against the outside of a wheel hub while a central socket element fits over the axle nut. The effect is to clamp the axle nut to the wheel so that turning the wheel tightens or removes the axle nut.

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