Specifications and Drawings of Patents Relating to Electricity Issued by the U. S Volume . 68

Specifications and Drawings of Patents Relating to Electricity Issued by the U. S Volume . 68

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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. 1890 edition. Excerpt: ... To all whom it may concern: Be it known that I, Clakk Homer Wells, a citizen of the United States, residing at Kansas City, in the county of Jackson and State of 5 Missouri, have invented certain new and useful Improvements in Suspended Switches for Electric Railways; and I do hereby declare The following 1 he a full, clear, and exact description of the invention, such aswill enable othio ere skilled in the ait to which it appertains to make and use the same. My invention is designed for use in connection with those systems of electric railways wherein the current is supplied to the carmotor from one or more suspended or "overhead" wires adapted to serve as the trackway of traveling trolleys of conducting material in electric contact with said t rackways and connected by depending conductors with 20 the car-motor, the arrangement being such that the depending conductors and the trolleys travel with the car. In electric-railway systems of this general character the particular exigencies of the case frequently require 25 that for a portion of its length the same conductor be employed for trolleys supplying motel's upon cars traveling in opposite directions. In such case it is obvious that in order for the two oppositely-moving trolleys to 30 pass each other without interference one of them must pass out upon a branch from the main conductor, and that a movable switch must be provided at the point of meeting of said branch and main conductor. those instances where the return-current to the source of electrical energy is conveyed by a second overhead conductor also provided with a traveling trolley and depending connection a similar branch and switch must be provided for said second conductor. The same necessity arises where from a...show more

Product details

  • Paperback | 382 pages
  • 189 x 246 x 20mm | 680g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236795431
  • 9781236795434