to one side, and when the staples have been the rail, the other side being engaged by a hook piv- tus are carried by two shafts geared together at their forced down into place the cap is carried over them, oted to the arm and locked in place by a wedge. The preventing their withdrawal. If the… … DOYLE'S GRAVITY HOISTING APPARATUS, crete work yet done in this vicinity. The structure is absolutely fireproof, which is larger than the other. On the smaller drums and intended also to be earthquake-proof. It is are wound the hoisting ropes, which pass over pulleys built on the system patented by…
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