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Westmacott and Lysters Work
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abrasion angle B. F. Goodrich balata belts bearings belt conveyor belt elevators belt runs belt speed bend boot bottom bucket elevators capacity carrying cent centrifugal discharge elevators centrifugal force coal coefficient of friction compound continuous bucket conveyor belt cubic cubic foot diameter duck edge elevator belts fabric fastened feed feet per minute five-pulley idlers flanges flat belt foot pulley foot shaft foot wheel friction grain belts grain elevators grease grease lubrication handling head pulley head wheel horizontal pulley horse-power pull inches wide inclined elevators lagging less loading point lubrication Main Belting material patent pick-up plies pounds pulley side return belt return idlers return run rubber belts rubber cover screw shown in Fig shows skirt-boards slip spacing spill steel stitched canvas belt stretch strip surface Table 35 take-up tandem drive tensile strength thick threads three-pulley idlers tripper troughing idlers vertical wear weight width