Patent Model - Improvement in Apparatus for Compressing Air

Maker and role
Jean Mignon (French, b.1824, d.1894), Patentee
Stanislas Rouart (French, b.1833, d.1912), Patentee
Production date
Mar 19 1867
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Object detail

Iron, brass
8 x 2 3/4 x 1 1/8" (20.3 x 7 x 2.9cm)
30 3/8lbs (13.79kg)
Mignon and Rouart's patent provides a "means for producing the exhaustion or compression of air, dispensing at the same time with the employment of machines commonly employed for this purpose; and our invention relates particularly to those machines constructed for the transmission of dispatches or other objects through tubes." (Patent Number 63,075)
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