Patent Model - Improvement in Pressure-Gages

Maker and role
William Snyder, Patentee
Production date
May 15 1877
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Object detail

Media/Materials
Brass, iron
Measurements
6 x 6 x 2" (15.2 x 15.2 x 5.1cm)
Description
Snyder's patent "relates to gages for indicating pressure in hydraulic cylinders; and it consists of a solid piston of small area, whose outward motion is opposed by a strong adjustable spiral spring, and whose outer extremity is connected with an index that moves in front of a graduated arc." (Patent Number 190,790)
Object number
2015.14.2383a-c
Currently on display?
No

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