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Scientific American, Vol. 71, No. 1 (July 1894) (1894)
leaf 3
ntinually against .the backs of the nuts, sents the sole physical condition necessary for the pro- thus completely locking them. It is claimed by the duction of cold by gaseous expansion. Assuming the inventor that after this joint is once properly placed density of the gas to be only half that of… … chamber of porous eartlienvvare centrally in the filter. pr<M!ession an inch long. PERKINS' RAIL JOINT. © 1894 SCIENTIFIC AMERICAN, INCMunn · Patents · Center · Dust · Caliber · Wheel · Water · Scientific American · Gas · Perspective elevations · Orange peel · Natural gas · Animal life · Initial velocity · Spherical chamber · Dust particles · Granulated sugar · Express money
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