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US Patent: 420,400
Wagon Jack
Nathaniel Allen - Lowell, MA

USPTO Classifications:
254/129, 254/32

Tool Categories:

Joseph Battles - Lawrence, MA

Not known to have been produced

Frederick L. Emery
Edgar A. Goddin
Joseph S. Lapierre
Fred'k P. Marble

Patent Dates:
Applied: Nov. 01, 1889
Granted: Jan. 28, 1890

Patent Pictures:
Nathaniel Allen patent January 28, 1890
USPTO pdf tiff
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The two levers are of unequal length to fit a range of wheel diameters. Each of the jaw ends has nut-receiving openings. The nut receiving openings are different sizes. It is not clear whether they are merely holders or intended to also serve as wrenches.

Compare this one to pat. no. 147,916.

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