Patent Model - Improvement in Screw-Propellers
Maker and role
William Smith (b.1833, d.1897), Patentee
Production date
Nov 20 1877
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Object detail
Media/Materials
Iron, wood
Measurements
3 3/4 x 8" (9.5 x 20.3cm)
Description
Smith's patent "relates to improvements in screw-propellers; and consists in a new and improved combination of devices embodied in the construction of the wheel,..." (Patent Number 197,419)
Collection
Object number
2015.14.2474a,b
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Maker
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