File:American engineer and railroad journal (1893) (14572768810).jpg

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Identifier: americanengineer71newy (find matches)
Title: American engineer and railroad journal
Year: 1893 (1890s)
Authors:
Subjects: Railroad engineering Engineering Railroads Railroad cars
Publisher: New York : M.N. Forney
Contributing Library: Carnegie Library of Pittsburgh
Digitizing Sponsor: Lyrasis Members and Sloan Foundation

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Text Appearing Before Image:
Front View of Motor, AND RAILROAD JOURNAL 408
Text Appearing After Image:
Side View of Motor 404 AMERICAN ENGINEER, CAR BUILDER their use, from a practical standpoint they would seem to bemore efficient than visual indicators, not only because they aremore arrestive but because they give indication or warning to agreater number of trainmen. Instructions governing crews us-ing main-line switches within the block system are very explicitTrainmen are not permitted to move a switch for the passage ofa train from side track to main track or from one main trackto the other when the bell at such switch is sounding; nor to pro-ceed after reversing a switch for the siding unless the bell doessound. It is apparent, therefore, that if, in opening the switch,the bell does not sound, the necessity for extra precautionarymeasures is suggested and trainmen are governed accordingly. The apparatus for operating the signal directly, necessarily dif-fers from that operating disc signals, and in its simplicity of con-struction, the likelihood of failure to perform its function

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https://www.flickr.com/photos/internetarchivebookimages/14572768810/

Author Internet Archive Book Images
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(Reusing this file)		 At the time of upload, the image license was automatically confirmed using the Flickr API. For more information see Flickr API detail.
Volume
InfoField
71
Flickr tags
InfoField
  • bookid:americanengineer71newy
  • bookyear:1893
  • bookdecade:1890
  • bookcentury:1800
  • booksubject:Railroad_engineering
  • booksubject:Engineering
  • booksubject:Railroads
  • booksubject:Railroad_cars
  • bookpublisher:New_York___M_N__Forney
  • bookcontributor:Carnegie_Library_of_Pittsburgh
  • booksponsor:Lyrasis_Members_and_Sloan_Foundation
  • bookleafnumber:412
  • bookcollection:carnegie_lib_pittsburgh
  • bookcollection:americana
Flickr posted date
InfoField
27 July 2014



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