Van Nostrand's eclectic engineering magazine (1869)
[New York : D. Van Nostrand] · leaf 194
carries a wire from Brooklyn to diameter with a grooved rim of zinc, in New York, the right one moves empty which the wire hangs, while traveling in opposite direction. When the latter across. It is secured to the traveler by arrives at the Brooklyn anchorage, the an iron, bent in the shape of a… … putting the wire on and hold it after- Other appliances in the service of wards in place. stretching wire are the wire drums. 2. Cradles and Cradle Ropes. — There are altogether 32 drums, 8 for The cradles are necessary for various each cable, the chief object of which is purposes. Their chief…
Engineering
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