. Material handling cyclopedia; a reference book covering definitions, descriptions, illustrations and methods of use of material handling machines employed in industry . OhS sQ >O. PREPARATION PLANTS 637 fraction of an inch away from the rotating trunnion. Afterthe operator trips the dump, a complete cycle is made with-out further attention. Where it is desired to take the mine cars from a lowerlevel up on to the dumping point of the tipple, it is fre-quently done by means of a car haul which pushes theloaded cars up an incline as shown in Fig. 3. After theyare dumped they automatically pa
. Material handling cyclopedia; a reference book covering definitions, descriptions, illustrations and methods of use of material handling machines employed in industry . OhS sQ >O. PREPARATION PLANTS 637 fraction of an inch away from the rotating trunnion. Afterthe operator trips the dump, a complete cycle is made with-out further attention. Where it is desired to take the mine cars from a lowerlevel up on to the dumping point of the tipple, it is fre-quently done by means of a car haul which pushes theloaded cars up an incline as shown in Fig. 3. After theyare dumped they automatically pass over to the down haul,which lowers them to the foot of the incline. In many cases when the coal is to be elevated into thepreparation pilants, it is dumped from the mine car, andis lifted by an inclined apron conveyoir or flight the mouth of the mine is above the preparationplant, the coal is usually lowered by a retarding conveyor,either a double-strand chain flight conveyor, or a cableconveyor. Sometimes the coal is lowered down the hill-side by means of monitors that are similar to double-balanced skip hoists, which are raised and lowered witha double cable
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Keywords: ., bo, bookcentury1900, bookdecade1920, booksubjecthoistingmachinery
