. Mechanical appliances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical movements, powers and devices" ... including an explanatory chapter on the leading conceptions of perpetual motion existing during the past three centuries. A pair of heavy rollers in a cir-cular trough rolls jthe briquet mate-irial into the holesof a revolving moldplate, in which thebriquets receivea further pressureand are ejected onto a belt carrier,which depositsthem in a truck orbin. Type of theChisholm, Boyd &White
. Mechanical appliances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical movements, powers and devices" ... including an explanatory chapter on the leading conceptions of perpetual motion existing during the past three centuries. A pair of heavy rollers in a cir-cular trough rolls jthe briquet mate-irial into the holesof a revolving moldplate, in which thebriquets receivea further pressureand are ejected onto a belt carrier,which depositsthem in a truck orbin. Type of theChisholm, Boyd &White Co., Chi-cago, 737. COAL-WASHINGJIG. Coal and slate arewashed through a vibratingbox or jig, and separatedby their difference in grav-ity. The coal is carriedover in a short chute tothe coal elevator and theslate is discharged throughan adjustable trap to theslate hopper below, fromwhich it is carried away byan elevator belt. A small vertical engineoperates the jig. 284 MINING DEVICES AND APPLIANCES.
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Keywords: ., bookauthorhiscoxgardnerdexter18, bookcentury1900, bookdecade1910
