Patent Model - Improvement in Tube-Expanders

Maker and role
Hiram Tyler, Patentee
William Severson, Patentee
H. Silsby, Assignee
Production date
Sep 26 1876
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Object detail

Steel, brass, wood
6 x 11 5/8 x 4 1/4" (15.2 x 29.5 x 10.8cm)
Tyler and Severson's device "is principally intended for use in expanding the interior expansible bands of hose-couplings, and to insure the proper position of the expanding-jaws with relation to such band we use an adjustable-gage..." (Patent Number 182,724)
Object number
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