. Handbook of construction plant, its cost and efficiency. Fig. 77. Plant for Loading Earth. 1 Derrick, 1500 lbs. capacity with 18 mast and 18 $ of % pure manilla rope, estimated for boom line, at 4c ft 150 of % pure manilla rope, estimated for fall line, at 4c ft. .. 300 of % pure manilla rope, estimated for 4 guy lines at 5c ft 3 7 single wood blocks for hoist and boom line, at 75c 2,25 1 boom winch, used for operating the boom Total $ Same outfit with 16 mast and 16 boom $ Same outfit with 14 mast and 14 boom Same outfit with 12 mast and 1
. Handbook of construction plant, its cost and efficiency. Fig. 77. Plant for Loading Earth. 1 Derrick, 1500 lbs. capacity with 18 mast and 18 $ of % pure manilla rope, estimated for boom line, at 4c ft 150 of % pure manilla rope, estimated for fall line, at 4c ft. .. 300 of % pure manilla rope, estimated for 4 guy lines at 5c ft 3 7 single wood blocks for hoist and boom line, at 75c 2,25 1 boom winch, used for operating the boom Total $ Same outfit with 16 mast and 16 boom $ Same outfit with 14 mast and 14 boom Same outfit with 12 mast and 12 boom 1 light car, 4x6, with flat wheels, complete 1 No. 1 light car, 4x6, with flanged wheels, All derrick irons for derrick (no rope, blocks, boom winch or timbers, but with drawings for mast and boom) DERRICKS 191 FITTED WITH STEEL HOISTING CABLES FOR HEAVYWORK Sheaves arranged for three lines in the boom tackle and threelines in the hoisting Fig. 78. Parker Derrick No. 4—Hand Power. * 1 Derrick, capacity 1500 lbs., with 18 mast and 18 } of %* best flexible steel cable, estimated for boom line at 7c ft 200 of % best flexible steel cable, estimated for fall line at 7c ft 300 of % pure manilla rope, estimated for 4 guy lines at 5c 3 8 single steel blocks for % cable, with plain hooks, at $ 1 8 single steel block for % cable, with swivel 4 % Crosby clips, at 20c 80 2 % galvanized thimbles, at 10c 20 1 No. 1 boom winch, used for operating the boom Total $ Same outfit with 16 mast and 16 boom $ Same outfit with 14 mast and 14 boom Same outfit with 12 mast and 12 boom 1 Light car, 4x6, with flat wheels, complete 1 Light car, 4x6, with flanged wheels, complete 192 HANDBOOK OF CONSTRUCTION PLANT All derrick irons for derrick (no rope, block, boom winch or timbers, but with drawings for mast and boom) $; Price of two wooden st
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbuilding, bookyear191
