Knight's American mechanical dictionary : a description of tools, instruments, machines, processes and engineering, history of inventions, general technological vocabulary ; and digest of mechanical appliances in science and the arts . ular sluice below. In Varrievs apparatus, the pulp is passed fromthe lioiiper to the pan, which is horizontally oscil-lated by a cam and recoil spring. By the inclinationof the disk forming the floor of the pan, the motion,and the flow of the water, the lighter and heavierparticles are assembled on the respective sides of theradial .strips which divide the disk
Knight's American mechanical dictionary : a description of tools, instruments, machines, processes and engineering, history of inventions, general technological vocabulary ; and digest of mechanical appliances in science and the arts . ular sluice below. In Varrievs apparatus, the pulp is passed fromthe lioiiper to the pan, which is horizontally oscil-lated by a cam and recoil spring. By the inclinationof the disk forming the floor of the pan, the motion,and the flow of the water, the lighter and heavierparticles are assembled on the respective sides of theradial .strips which divide the disk into sectionalcompartments. The trough beyond the peripheryof the disk is divided in line with the strips, andhas openings on each side of the divisions, whichconduct the respective qualities, thus sorted by theirrelative gravities, by separate channels to their dis-tinct receptacles, the lighter being discharged cen- trally to the waste-pipe, and the heavier particles ofore being collected in a circular series of bo.\cs placedone l)elow each discharge. Other varieties might be cited. Ore-crnsher. A mill for breaking ores intosmall pieces for farther treatment. Usually a pre-liminary breaking preparatory to slampbuj. Fig. Blakes Ore-Crushers. ORE-FURNACE. 1569 ORE-MILL. Fig. 3417 shows tlivee forms of tlie Blake ore andstone i-rusher. In eaeli figure tlie parts are repre-senteJ in position as they would 1)e seen by remov-ing one side of the frame A. a is the crank, f> isa pitman or connecting rod whicli operates the leverc. This lever has its fulcnim on the frame at (/.Ipon the lever stands a vertical piece c, against thetop of which the toggles / / have their bearings,forming an elbow or toggle-joint, y is the fixed jawagainst which the stones are crushed. This is bed-ded in zinc against the end of the frame, h is themovable jaw, pivoted at i and swinging back andforth by every revolution of the crank. J is a rub-ber spring which opens the jaw, and k is a wedgewhich
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