Handbook of construction plant, its cost and efficiency (1914)
Dana, Richard Turner, 1876-1928 · Chicago, The M. C. Clark Publishing Co. · leaf 149
Fig. 66. being required. It was subjected to the roughest kind of usage;rocks weighing over 100 pounds were constantly dumped uponit, but never caused a moments stoppage during the entirework. The width of the belt was 30 inches, and the actual … Fig. 67. Movable Tripper. quantity removed exceeded 1,200 cubic yards per day. Thework was all done during very cold weather, in December andJanuary. The conveyor used on this contract was also employed by CONVEYORS 145 Messrs. Ryan and Parker for similar work in a gre(at number ofplaces, its…
Contractors' operations · Building
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