Handbook of construction plant, its cost and efficiency (1918)
Dana, Richard Turner, 1876-1928 · New York, McGraw-Hill book company, inc., [etc., etc.] · leaf 307
chines have a 40 ft. steel boom carried on an all steel frame.The maximum width of cut is 14 ft. The power is supplied bya 15 H. P. Gasoline engine. The machine has two forward trac-tion speeds and one reverse. These machines cost $5,000 each,and the cost of handling material with them was about 13… … Fig. 117. Bridge Conveyor Excavator on Section 6, New York StateBarge Canal. excavator long employed at Great Lake ports for unloading orevessels. The machine has proved fairly economical, and cost$105,000. The machine consisted of two towers, each 90 ft. high, restingon a steel framework supported…
Contractors' operations · Building
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