Patent Model - Improvement in Steam-Pumping Engines

Maker and role
Roscoe Gould, Patentee
Production date
Jul 27 1869
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Object detail

Brass, wood
3 1/4 x 11 x 4" (8.3 x 27.9 x 10.2cm)
Gould's patent "consists in applying spiral, or other properly-constructed springs to the piston-head of a steam-pump, or to a separate piston within the cylinder, or in other convenient location inside the pump-valves, or in a separate cylinder having communication inside the valves, in such a manner as to do away with the necessity of a fly-wheel to carry the stroke over the horizontal or perpendicular line, and also to form a 'relief' to the pump, and to enable a higher pressure to be obtained under the same power than in the ordinary steam-pumps..." (Patent Number 92,957)
Object number
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