in anchoring the commutator, anda contact block having a spring con- Stein, No. 180 East 109th Street, New York City. The post. The post is of either. wrought or cast iron, and nection with the key-carrying contacts adapted to con- all in one piece, the two parallel uprights of its lower guide… … when the interpreters are left in circuit, the operator stiles to be cut, and the stiles are held in proper ad- shorter upright is joined to the longer one by a bolt, at either station can send a message to the other sta- justment, that they may be cut in. theright place, by and the brick-holding…
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