Appleton's dictionary of machines, mechanics, engine-work, and engineering (1869)
New York, Appleton · leaf 401
SO stampers are divided into 3 sets of 5 each; these5 stampers work into one trough—that is, the whole length of the trough is divided into 6 compart-ments, of which each forms a set or battery. Each battery has its own feeding apparatus ; this is alarge, wooden, fixed hopper, as shown in Fig.… … ance of the two stampers on each side, it can crush.The bottom of each trough is provided with a cast-iron plate ; the stampers, however, never touch thisplate. Upon this bed-plate a bed of quartz is laid,and kept so that always from 2 to 4 inches high ofpartly crushed quartz is in the bottom of…
Mechanical engineering
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