Railway Engineering and Maintenance Volume 13, No. 11

Railway Engineering and Maintenance Volume 13, No. 11

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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. 1917 edition. Excerpt: ...were of the rigid-spout type, which permitted a radial movement only, the delivery of water being controlled by a gate or globe valve. The necessity of a flexible connection was soon appreciated C. E. SMITH President of the American Railway Bridge and Building Association. and the spout connection was made with a flexible connection to the upper elbow. As with the earlier type of tank spout the manufacturers of penstocks endeavored to maintain a water-tight joint at the upper elbow an.l at the same time provide a vertical as well as a radial movement of the spout. However, the maintenance of this joint was difficult and expensive, and in 1904 what was known as the Fenner drop spout was put on the market. This consisted of a spout with the upper elbow telescoping into the end of the spout far enough to prevent any water splashing out of the opening. The open joint of this spout not only gives a great range of adjustment, but prevents ice from forming in the joint. This form of spout is provided with practically all modern makes of penstocks and is a decided improvement over the rigid spout. as it has a wide range of adjustment in a perpendicular line with the discharge end always in the center of the track and a lateral movement according to the length of the spout. It can be swung out or in, increasing or decreasing the length of the spout to reach the center of the track in the event that the penstock is located between diverging tracks or tracks at different and avoids the necessity for spotting the engine accurately when taking water. Another advantage in the telescopic spout is that it lessens the liability of the penstock being knocked down, owing to its greater flexibility, and in this way reduces the maintenance cost. It is...show more

Product details

  • Paperback | 42 pages
  • 189 x 246 x 2mm | 95g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 123691726X
  • 9781236917263