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 . procationof the jaws. Fig. 4070. See also 4 The rotary lieatcr. The ore passes from thehopper int.) the first cylinder, the beaters on theshaft-forming a partial vacuum. The beateis strikethe ore, which is carried by the peripheral Uuce otthe onrrent through the connecting into tljesecond chamber, through which it receives the sametreatment,
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 . procationof the jaws. Fig. 4070. See also 4 The rotary lieatcr. The ore passes from thehopper int.) the first cylinder, the beaters on theshaft-forming a partial vacuum. The beateis strikethe ore, which is carried by the peripheral Uuce otthe onrrent through the connecting into tljesecond chamber, through which it receives the sametreatment, and passes to the connecting-liipe, whichdeposits it in the dust-chamber. Fig. 4071. 5. Horizontal runner. The stone is suspendedabove the bc<l, and is fed through the eye, as withgrist-mills. Fig. 4072. , , „, ,? i 6 The rnnner on horizontal shaft. I he cylnu ersurrounds the grinding-wheel, which is c, ;.journalcd in respect to it, and revolves at ilillcrciit QUARTZ-MILL. 1845 QUARTZ-MILL. speed thereto. The mattei- to be crushed enters one I into the liopper, and passes between the verticaleud of tile cylinder, and passes out beneath tlie I compound wheel of the hopper anil the concave, Fig. 4069. Fig. shields and gauze-covered openings near the periph-ery of the same. The cylinder runs on anti-frictionrollers. Fig. 4073. 7. Bell-shaped runner in conical case. This has Fig. 4070. Quartz-Mill mith Rotary Beaters. which is formed of segmental passes to the final reducing stones. From thenceFig. 4075. Fig. 4072.
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