Handbook of construction plant, its cost and efficiency (1918)
Dana, Richard Turner, 1876-1928 · New York, McGraw-Hill book company, inc., [etc., etc.] · leaf 151
Fig. 69. per minute does the hoisting. The total weight of the craifie is110 lbs. and its cost is about $9,000. The daily (10 hours) ex-pense of operating each crane was: 1 engineer $ 2.50 1 fireman 1.50 Machinist service 1.00 Superintendence 75 1 % tons coal 2.50 Oil and waste 25 Repairs (?) 50… … 147 148 HANDBOOK OF CONSTRUCTION PLANT Hullett-McMyler Derrick. Fig. 71 illustrates this machine,which handles a skip weighing 2,400 lbs,, making, with its fullload of 1% cubic yards of solid rock, 3% tons loaded. It weighs95 tons and costs $15,000. The cost of operation is practicallythe same as…
Contractors' operations · Building
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