e girders, on the outer edge of which are the longitudinal shaft, L, by a band driven off the main The Boston Manufacturers' Mutual Fire Insurance fixed the angle irons, I, for making the final connection driving pulley. On this shaft slides^ and by it also are Co. in a recent circular says: to the… … saved by the automatic Fig. 4.-THE GREAT DRILLING MACHINES OF THE FORTH BRIDGE. and fixed in a similar man- sprinklers, the workmen ner, there are passed round having been driven from all a couple of angle iron rings, for binding and draw- wheel, I, which at will can be made to drive the hand the…
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