Handbook of construction plant, its cost and efficiency (1914)
Dana, Richard Turner, 1876-1928 · Chicago, The M. C. Clark Publishing Co. · leaf 195
s 10.50 6 2 xl4 165 lbs. 3000 lbs 11.50 Sulky derrick about 15 high. One man, one ton, with brake,blocks and 50 of 1/£ steel wire rope or 100 of 1 manila rope.Weight, 3,500 lbs. Price, $60.00. See Fig. 76. 190 HANDBOOK OP CONSTRUCTION PLANT LIGHT DERRICKS WITH WINCHES OPERATED BY HANDPOWER Fig. 78.… … Fig. 77. Plant for Loading Earth. 1 Derrick, 1500 lbs. capacity with 18 mast and 18 boom..$46.50100 of % pure manilla rope, estimated for boom line, at 4c ft 4.00 150 of % pure manilla rope, estimated for fall line, at 4c ft. .. 6.00 300 of % pure manilla rope, estimated for 4 guy lines at 5c ft…
Contractors' operations · Building
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