. Transactions. J! ° * I : O B Z /- U _r n ^ - :_ -o \ k z 0 JE ? • ^E3 T. « : - -- - — / - - The slack resulting from the breakage of the coal is found tobe clean, and, not needing any further preparation, it descendsthrough the hopper L to the top strand of the conveyor M gg \ BITl MIN01 S-COAL BREAKER. (having l- by 20-in. flights Bpaced every 3 ft.), and takendirectly to the mixed-coal bin S. The other sizes are fed bymeans of the hoppers ZV into spiral separators 0, which separatethe greater pari of the impurities from the coal. These im-purities pass either to the lower strand of the con
. Transactions. J! ° * I : O B Z /- U _r n ^ - :_ -o \ k z 0 JE ? • ^E3 T. « : - -- - — / - - The slack resulting from the breakage of the coal is found tobe clean, and, not needing any further preparation, it descendsthrough the hopper L to the top strand of the conveyor M gg \ BITl MIN01 S-COAL BREAKER. (having l- by 20-in. flights Bpaced every 3 ft.), and takendirectly to the mixed-coal bin S. The other sizes are fed bymeans of the hoppers ZV into spiral separators 0, which separatethe greater pari of the impurities from the coal. These im-purities pass either to the lower strand of the conveyor Maudare conveyed to the rock elevator G, or from one set of spiralsto the bins E, by means of chutes Q, which give an opportunityto re-pick the refuse by hand and save any eoal that may be init. This refuse is finally loaded into railroad-ears and used bythe railroad for widening banks, etc. From the spirals 0 the coal drops on to two picking bands P,4 ft. wide and 50 ft. long and having a speed of 40 ft. per min.,which convey it to the mixed-coal bin S
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Keywords: ., bo, bookcentury1800, bookdecade1870, booksubjectmineralindustries
