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US Patent: 147,916
Improvement in Lifting-Jacks
Combined Wagon-Jack and Wrench
Patentees:
William H. Dungan - Indianapolis, IN
David H. Horner - Indianapolis, IN

USPTO Classifications:
254/129

Tool Categories:
wrenches : wrench combination tools
transportation machines : wagons : wagon jacks

Assignees:
None

Manufacturer:
Unknown

Witnesses:
Franck L. Ourand
C. L. Evert
F. D. Miner
Edwin Shivel

Patent Dates:
Applied: Feb. 04, 1874
Granted: Feb. 24, 1874

Reissue Information:
Reissued as RE6,134 (Nov. 17, 1874)

Patent Pictures:
Dungan and Horner Pat. February 24, 1874
USPTO pdf tiff
Google Patents
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Description:
The tool consists of two handles and jaw segments with right-angle notches. The specifications describe modes of assembling them as a jack for carriage axles; the notched jaw segments would also align to form an open-end wrench.

Wrench collector James Moffet has an example.

Compare this one to patent no. 420,400 which looks very similar.

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