Patent Model - Improvement in Steam Rotary-Valves

Maker and role
Louis Begon (b.1809, d.1883), Patentee
Production date
Nov 26 1867
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Object detail

Tinned sheet iron, brass, steel, paint
3 1/8 x 3 x 3/4" (7.9 x 7.6 x 1.9cm)
The nature of Begon's invention "is to provide an improved valve for steam-engines, which is so constructed to be exactly balanced, and move with the least possible friction. It also relates to cutting off the steam at any desired point, so that it may be expansively used for a greater or less portion of the stroke." (Patent Number 71,726)
Object number
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