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 1394
Fig. 35. Average depreciation of standard bucket conveyorshandling fine coal in rigid buckets, spaced 30 inches. lEMGTH OF CONVEYOR-SUM OF VERTICALAND HORIZONTAL TRAVELfHtL) INONEDIRECTION IN FEET250 30O 550 400 450 500_ 550 … Fig 36. Average depreciation of standard bucket conveyorshandling fine coal in rigid buckets, spaced 36 inches. are sufficiently accurate for all practical purposes, however, for inthe case of bucket elevators it is customary to charge up onlysuch proportion of the annual depreciation that is…
