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 1374
the screw con-veyor possesses considerable economic value and finds many usesabout certain manufacturing plants — particularly in cement mills. Unlike the types of conveyors already analyzed, the economicspeed of the screw conveyor is governed by its size (diameter ofscrew) rather than by the… … fiote:5crewC(mveijorsrrKi(jbemhlledafasliahhndmatiol^ of<^nv7or: ^^led per hour for each foot rise,n length 6CHERAL Formula: ftp. • ^^ WH£R£. W^ Load handled in tons per hourL- Length of conyeyor /fffeet.H~ Eleration in length of convey onn feet Fig. 12. Horsepower requirements of screw…
