Electrical West Volume 1-2

Electrical West Volume 1-2

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1895 edition. Excerpt: ...require various speeds in either direction. The motors are made in 20, 25, 30, 35 and 10 horse-power sizes, and are handled by the Sterling Electric Supply Company, Pacific Coast agents, San Francisco. TIE PLATES ON ELECTRIC RAILWAYS. The street railway manager whose ties on country divisions are cut by rail flanges or weakened by frequent spiking, and who lias found no satisfaction or adequate prevention of these and similar troubles, will be pleased to learn of the remarkable success being achieved with the Servis Tie-plate on electric lines. These simple appliances, which are used in numberless quantities on steam roads, have only recently been introduced for service on electric lines, but sufficient experience has already been had to demonstrate that with these tie plates, even under the heaviest traffic, the full life of the tie is secured, viz.: cedar, twelve years and upward; black and red cypress, fifteen years and upward; redwood, twenty years and upward. Even in the busy yards of steam roads, under constant and heaviest traffic, ties have their period of usefulness extended from two to eight years and upward, according to the quality of the timber. As shown in the accompanying illustration, the Servis Tie-plate simply consists of a plate of cast iron, ribbed on one side, and varying in width from 3 inches to 6 inches. The plates are placed upon the tie with their ribs running parallel with the grain of the wood, and the flanges are driven into the tie when first applied, but after short service the fibre of the tie is compressed, its upper surface is forced down to the plane of the surface of the tie, and a perfect union of the plate and tie thus occurs. Marked economy, not only in the life of the tie, but in preventing...
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Product details

  • Paperback
  • 189 x 246 x 14mm | 472g
  • United States
  • English
  • black & white illustrations
  • 1236849744
  • 9781236849748