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 1385
6 50 ^600 ^550o z 500 Z450o §400U350 CE ^500 Q _.250 i200 z < 150 w 50< HEIGHT OF ELEVATOR rtLEVATION OF LOAO> IN FEET20 _.. 50 40 50 60 70 80 90 iOer/s/f^L Formula ■i-O.I5Dwl 10000^Where: D= Avetoge Annual Depreciation indo/larswl - Size of bucket - width x fengffi in inc/ies.H = Heigtil… … Fig 21. Average depreciation of standard bucketbuckets spaced 15 inches. is permissible, as the rate of depreciation during operating hrs. iscomparatively high, and though there is a certain degree of de-preciation contracted during hours of idleness, such deterioration HEIGHT OF ELEVATOR…
