Handbook of construction plant, its cost and efficiency (1914)
Dana, Richard Turner, 1876-1928 · Chicago, The M. C. Clark Publishing Co. · leaf 155
CONVEYORS 151 The Brown Cantilever Crane. Eleven of these machines shownin Fig. 73 were used on the Chicago Drainage Canal, and afterthe first year a monthly output of 15,000 to 16,000 cubic yards,600 cubic yards per 10-hour shift per crane, was attained. Thetrusses have a slope of 12%°, a carriage…
Contractors' operations · Building
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