illustration, Fjg. 2, the construc- quarters of an inch in longest dimensions, is well tamped in 9 inches thick and 14 to 15 inches wide. tion of the machine includes a massive pitman, F, which is Macadam roads, a section of the bed of which is shown in caused to ascend and descend through the… … Fig. 2.-BLAKE'S STONE CRTJSHER.-SECTIONAL VIEW. Fig. 3.-THE TELFORD ROAD. ning with the light and ending with the heavy roller. to the toggles, G, one of which presses the movable jaw, J, which broken stone forms a great part of the material, many toward the stationary jaw, H. The jaw, J, when the…
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