Handbook of mechanical and electrical cost data, giving shipping weights, capacities, outputs, and net prices of machines and apparatus, and detailed costs of installation, maintenance, depreciation and operation, together with many principles and data relating to engineering economics (1918)
Gillette, Halbert Powers, 1869-, Dana, Richard Turner, 1876-1928, joint author · New York, McGraw-Hill · leaf 1373
ental supplies, as in the case of belt con-veyors, is almost directly proportional to the power requirements ;and as a number of incidental repairs can logically be charged tothe same expense, safe figures for this item are 2 cts. per hr. perh.p. for conveyors with sliding-shoe flights and about… … Fig. 11. G£fi£RAL Formula ■ ^, O.lUid^WR Where, W ^Capacity in tons {2000 Lb.) per hour.cl= Diamefer of screw in inchesY/= Weight ofmafericil handled in Ib.percuStR= Revolution of screws per minute. Capacities of standard screv/ conveyors, economicallyloaded and operated. less costly than those on…
