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 1392
iation in bucket spacing of thetwo types of conveyors, so apparent in the consideration of averageinitial costs, is still further accentuated in the matter of depre-ciation, as the component parts of the two types of conveyors de-teriorate at quite different rates. The ordinary yearly deprecia-tion… … Fig. 32. Average cost of standard bucket conveyors for handlingfine coal, pivoted buckets, spaced 36 inches. ages close to 33i^%, while that of the pivoted types of bucketsshould not exceed 20%, unless the service to which the conveyor issubjected is unusually severe. The depreciation on the chains…
