. Cassier's magazine . eel set in a framework ofstructural steel. The seven bladesare bolted to a connecting bar andthe sections used for sawing extendforward as an angle so that the firstof front blade merely makes a slightincision in the stone. The secondblade projects lower than the first,the third hangs below the second, andso on to the last blade, which ex-tends below all the others. In thisway a much greater force can be ex-erted in sawing than where the bladesare set evenly. The stone to be sawedis carried under the saw on a steeltrunk and the saw adjusted. Thelength of stone, to be saw
. Cassier's magazine . eel set in a framework ofstructural steel. The seven bladesare bolted to a connecting bar andthe sections used for sawing extendforward as an angle so that the firstof front blade merely makes a slightincision in the stone. The secondblade projects lower than the first,the third hangs below the second, andso on to the last blade, which ex-tends below all the others. In thisway a much greater force can be ex-erted in sawing than where the bladesare set evenly. The stone to be sawedis carried under the saw on a steeltrunk and the saw adjusted. Thelength of stone, to be sawed is lim-ited only by the capacity of thequarry to produce long blocks. Thematerial is first loaded on cars andadvanced forward to the blades bymeans of a screw 35 feet long, whichis constantly pulling the car throughthe machine, thus enabling the sawto make a continuous operation. Allthat is necessary is to keep the stoneloaded on cars in front of the saw,then as the car emerges from the METHODS OF STONE QUARRYING H3. METHOD OF MOVING THE LARGE BLOCKS IN ITALY ON SLIDES OF DEBRIS
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyork, booksubjec
