File:Cyclopedia of applied electricity - a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric (14779797752).jpg

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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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Fig. 187. Section ThroughClamp Shown in Fig. 186 Fig. 188. Section ThroughClamp for a Figure 8 Wire a strain insulator, Fig. 190, is sometimes placed in the span wire.This is an insulator adapted to withstand the great tension putupon it by the span wire. Means are usually provided for tighteningthe span wires as they stretch and as the poles give under the strain.The insulator may have a screw eye or a turnbuckle for that purpose.Iron or steel tubular poles are used in some city practice.These are neat, durable, and strong. LTsually wooden poles areused on account of their low cost. The insulation of the wooden
Text Appearing After Image:
Fig. 189. Details of Section Insulator Used at Intervals in Trolley Line pole is greater than that of the iron pole, which is advantageous.Fig. 191 shows a simple span-wire construction for an interurbanroad. In this there are no strain insulators shown; if used theywould be inserted in the span wires near the poles. 302 ELECTRIC RAILWAYS 205 In supporting trolley wire on curves it is necessary to pull thewire from one side in order to make it conform to the curve of the ^heavu sheet mica discs. ■maI. iron clamp

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Flickr tags
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  • bookid:cyclopediaofappl05amer
  • bookyear:1916
  • bookdecade:1910
  • bookcentury:1900
  • bookauthor:American_Technical_Society
  • booksubject:Electric_engineering
  • bookpublisher:Chicago___American_Technical_Society
  • bookcontributor:Northeastern_University__Snell_Library
  • booksponsor:Northeastern_University__Snell_Library
  • bookleafnumber:345
  • bookcollection:northeastern
  • bookcollection:blc
  • bookcollection:americana
Flickr posted date
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29 July 2014

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