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Home > History and Archaeology > History > Engineering Problems in Electric Elevated and Suburban Railroading; The Multiple Unit System. a Paper Delivered Before the American Institute of Electrical Engineers, May 16, 1899: (English)
Engineering Problems in Electric Elevated and Suburban Railroading; The Multiple Unit System. a Paper Delivered Before the American Institute of Electrical Engineers, May 16, 1899: (English)

Engineering Problems in Electric Elevated and Suburban Railroading; The Multiple Unit System. a Paper Delivered Before the American Institute of Electrical Engineers, May 16, 1899: (English)

          
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About the Book

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1899 Excerpt: ... master controller or operator's switch mounted on a standard, and fastened to the wood work of the cab. Through this master controller the pilot apparatus of the current varying controller and the reversers are governed. It is provided with a movable handle, operating a spring retracted spindle, which through various degrees of movement makes contact with the reverser circuit and with three determinate positions, coast. series, and multiple. Momentary contacts on these various points give any desired intermediate position of the main controller, which has a stepped movement. In order to maintain the controller at any point, or to keep the governing circuits or train lines energized, the handle of the master controller must be held in position. If the handle is released, whether from accident or design, the spindle instantly returns to coast position, and the controller automatically returns to the off position and cuts off the current, or if the master controller is allowed to go to the center position, the reverser is instantly opened, and the controller then comes to open circuit also automatically. The arrangement of circuits is such that by the Usj of a relay and throttle and the proper interconnection between the controlling circuits the operator is at liberty to do about as he pleases with the master controller, and can rely upon the main controller operating satisfactorily. For example: He can go to the series or to the multiple position, or, from the last, reverse movement instantly, and the controller instead of responding instantly operates progressively, the pilot being limited in its movements by increment of the main current to or above any definite amount. The throttle is set just short of the skidding point of the wheels on a normal track, a...


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Product Details
  • ISBN-13: 9781130894318
  • Publisher: Rarebooksclub.com
  • Publisher Imprint: Rarebooksclub.com
  • Height: 246 mm
  • No of Pages: 26
  • Series Title: English
  • Weight: 68 gr
  • ISBN-10: 1130894312
  • Publisher Date: 01 Mar 2012
  • Binding: Paperback
  • Language: English
  • Returnable: N
  • Spine Width: 1 mm
  • Width: 189 mm

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Engineering Problems in Electric Elevated and Suburban Railroading; The Multiple Unit System. a Paper Delivered Before the American Institute of Electrical Engineers, May 16, 1899: (English)
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Engineering Problems in Electric Elevated and Suburban Railroading; The Multiple Unit System. a Paper Delivered Before the American Institute of Electrical Engineers, May 16, 1899: (English)
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Engineering Problems in Electric Elevated and Suburban Railroading; The Multiple Unit System. a Paper Delivered Before the American Institute of Electrical Engineers, May 16, 1899: (English)

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