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 1368
and not abused. Ordinarily adepreciation charge of about 25% on the belt and about 10% onthe balance of the equipment covers all reasonable wear and tear;the general formula on Fig. 5 is based on such apportionment.The curves shown are plotted from data compiled in a more in-tricate and exacting… … ^m 25 75 126 175 225 ?7S 3Z5 375 425 475 5Z5 i/i 34552 250 228 e in nt\ 20 S5 ^E14 S1?^ Fig. 5. LENGTH OF CONVEYOR IN FEET Annual depreciation of standard belt conveyors. results obtained from the general formula and the readings de-rived from the chart is so slight that dependence may be placedon…
