. Machinery for metalliferous mines : a practical treatise for mining engineers, metallurgists and managers of mines. d box, fixed in a suitable framing (o). At the bottom of this hopper isa tray (b) suspended on rods (c c). The ore fills the hopper, and wouldpile up and stick upon the tray or shoot (b) but for the travel andpercussive movement which is given to it by means of the lever (k) andthe recoil of the sjjring (m). The feeder is attached to the battery by ORE FEEDERS. -^O^ boring an inch hole through the guide block of the stamp stems, so thatthe end of the rod (j), will come under th
. Machinery for metalliferous mines : a practical treatise for mining engineers, metallurgists and managers of mines. d box, fixed in a suitable framing (o). At the bottom of this hopper isa tray (b) suspended on rods (c c). The ore fills the hopper, and wouldpile up and stick upon the tray or shoot (b) but for the travel andpercussive movement which is given to it by means of the lever (k) andthe recoil of the sjjring (m). The feeder is attached to the battery by ORE FEEDERS. -^O^ boring an inch hole through the guide block of the stamp stems, so thatthe end of the rod (j), will come under the tappet of the centre stamp,and a motion corresponding to that of the stamp is thus given to therod (j). The motion is communicated by means of the lever (i p) andthe adjustable rod (h), and so by the upright lever (e) to the tray (b),the sharp recoil of the spring (m) insuring a proper movement to the ore. For very wet ores a variation of the TuUoch feeder, known as theChallenge, is to be preferred. This machine is shown in fig. 152. Thecircular cast iron plate shown beneath the hopper, resting at an angle, is. Fig. 151.—Tullochs Ore Feeder. rotated by the bevel gear, which in turn is moved by an ingenious frictionarrangement, varied by the blow received from the tappet on the rod, asin the Tulloch, corresponding to the requirements of the stamp. At eachpartial rotation of the feed table a small quantity of ore is scraped off bythe stationary wings resting on the plate. Too great importance cannot be attached to the regularity of the feed,whether to stamps or rollers. With the slow running Cornish rolls used for coarse crushing it is notusual to employ a feeder, as the picking table above acts in that capacity,but with those used for recrushing and all fast-running rolls a feeder is 234 MACHINERY FOR METALLIFEROUS MINES. always attached. The principle is the same as that of the TuUoch,except that tlie motion is given to the feed tray by means of a camfixed on a light shaft,
Size: 1415px × 1765px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyo, bookyear1902
