Patent Model - Combined Gas, Air, and Steam Rotary Engine

Maker and role
William Wigmore, Patentee
Production date
Nov 08 1881
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Object detail

Brass, copper, steel
5 3/16 x 3 11/16 x 4 5/16" (13.2 x 9.4 x 11cm)
Wigmore's invention consists "in the introduction of gas, air, and water simultaneously and together into a tank connected with a cylinder of a steam-engine, a portion of the water being used in forming a jacket around the greater portion of the circumference of the cylinder, and also to the ends thereof, and in the latter case acting as cushions to react against concussions..." (Patent Number 249,214)
Object number
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