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US Patent: 404,167
Carriage Jack
Patentee:
Edward F. Burtis - Sacramento, CA

USPTO Classifications:
254/32, 81/121.1

Tool Categories:
wrenches : axle nut wrenches : axle nut wrench combination tools

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Geo. H. Strong
S. H. Nourse
H. C. Lee

Patent Dates:
Applied: Dec. 04, 1888
Granted: May 28, 1889

Patent Pictures:
Edward F. Burtis patent May 28, 1889
USPTO pdf tiff
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Description:
The socket wrench for the axle nut is mounted on a swivel. As it is retracted toward the handle, the tapered face of the arm that lifts the axle end tips the socket up to retain the nut.

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