Identifier: cyclopediaofappl05amer (find matches)
Title: Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc.
Year: 1916 (1910s)
Authors: American Technical Society
Subjects: Electric engineering
Publisher: Chicago : American Technical Society
Contributing Library: Northeastern University, Snell Library
Digitizing Sponsor: Northeastern University, Snell Library

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Text Appearing Before Image:
Fig. 13. Details of Trolley Suspension and Current Collector of the Koehler SystemCourtesy of Engineering News Current-Collecting Device. It is obvious that the collector mustbe of entirely different construction from that in any other systemon account of this different arrangement of the wires. Fig. 13shows the general construction. The first essential is, of course,that such a collector be light and at the same time capable of adjust-ing itself to side pulls. Furthermore, as with all the other systems, 393 14 TRACKLESS TROLLEY TRACTION there must be a flexible connection to the car with an automaticdevice by means of which the cable drum is controlled under varyingconditions. The collector itself is a combination of the over-running
Text Appearing After Image:
Fig. 14. Trolley Suspension Method for English Railless Sy.stem trolley and of the under-running bow features. On the negativeconductor we have two trolley wheels 12 inches apart carrying aC-shaped arm to which is connected the aluminum bow collector forthe positive wire. The upper and lower carriages are insulated

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