Patent Model - Improvement in Pipe and Nut Wrenches
Maker and role
Friedrich Kohler, Patentee
Henry Zimmerman, Assignee
Friedrich Kohler, Assignee
Production date
Feb 02 1875
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Object detail
Media/Materials
Steel
Measurements
17 1/4 x 17 x 2" (43.8 x 43.2 x 5.1cm)
Description
Kohler's patent was intended to "construct a wrench susceptible of use as a monkey and pipe wrench; and it consists in constructing the removable jaw with a plain and concave face in one piece, so that upon reversing it the wrench may be applied as a pipe or a nut wrench." (Patent Number 159,420)
Collection
Object number
2015.14.1883
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