File:Manual of recommended practice for railway engineering and maintenance of way (1905) (14572502487).jpg

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Original file ‎(2,256 × 3,094 pixels, file size: 591 KB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents

Summary

[edit]
Description
English: Diagram, "Standard Semaphore Arm for Telegraph Block Signal; Two Position."

Identifier: manualofrecommen1905amer (find matches)
Title: Manual of recommended practice for railway engineering and maintenance of way
Year: 1905 (1900s)
Authors: American Railway Engineering and Maintenance-of-Way Association
Subjects: Railroad engineering Railroads
Publisher: Chicago, Ill. : The Association
Contributing Library: Northeastern University, Snell Library
Digitizing Sponsor: Boston Library Consortium Member Libraries

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
ARD ARRANGEMENT OF SIGNALS AT INTERLOCK-ING PLANTS. RECOMMENDED PRINCIPLES OF PRACTICE. (i) That, inasmuch as interlocking signal plants were introducedto make the passage of trains safe at speed over track layouts moreor less, complicated by crossovers, turnouts, and crossings, the object inarranging interlocking signals is primarily to indicate routes for trains,and, secondarily, as a necessary consequence, speeds for trains. (2) That high-speed movements be governed by high signals, andlow-speed movements be governed by low signals. (3) That only two high-speed signals be displayed on one mast,the top arm to govern the unrestricted speed and the lower arm togovern all other high speeds. (4) That all low-speed movements be governed by one-arm lowsignals of dwarf construction. - - (5) That a distant signal be provided for each high-speed route. « Adopted, Vol. 4, 1903, pp. 298, 299, 346.t Adopted, Vol. 6, 1905, pp. 506, 527, 547-552. Standard Semaphore Arm for TelegraphBlock Signal.
Text Appearing After Image:
FIG. 5- FIG. 4. STANDARD SEMAPHORE ARM FORTRAIN-ORDER SIGNAL. J

Note About Images

Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.
Date
Source

https://www.flickr.com/photos/internetarchivebookimages/14572502487/

Author American Railway Engineering and Maintenance-of-Way Association
Permission
(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
1905
Flickr tags
InfoField
  • bookid:manualofrecommen1905amer
  • bookyear:1905
  • bookdecade:1900
  • bookcentury:1900
  • bookauthor:American_Railway_Engineering_and_Maintenance_of_Way_Association
  • booksubject:Railroad_engineering
  • booksubject:Railroads
  • bookpublisher:Chicago__Ill____The_Association
  • bookcontributor:Northeastern_University__Snell_Library
  • booksponsor:Boston_Library_Consortium_Member_Libraries
  • bookleafnumber:87
  • bookcollection:northeastern
  • bookcollection:blc
  • bookcollection:americana
Flickr posted date
InfoField
27 July 2014

Licensing

[edit]
This image was taken from Flickr's The Commons. The uploading organization may have various reasons for determining that no known copyright restrictions exist, such as:
  1. The copyright is in the public domain because it has expired;
  2. The copyright was injected into the public domain for other reasons, such as failure to adhere to required formalities or conditions;
  3. The institution owns the copyright but is not interested in exercising control; or
  4. The institution has legal rights sufficient to authorize others to use the work without restrictions.

More information can be found at https://flickr.com/commons/usage/.

Please add additional copyright tags to this image if more specific information about copyright status can be determined. See Commons:Licensing for more information.
This image was originally posted to Flickr by Internet Archive Book Images at https://flickr.com/photos/126377022@N07/14572502487. It was reviewed on 17 October 2015 by FlickreviewR and was confirmed to be licensed under the terms of the No known copyright restrictions.

17 October 2015

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current22:16, 17 October 2015Thumbnail for version as of 22:16, 17 October 20152,256 × 3,094 (591 KB)Fæ (talk | contribs)== {{int:filedesc}} == {{information |description={{en|1=<br> '''Identifier''': manualofrecommen1905amer ([https://commons.wikimedia.org/w/index.php?title=Special%3ASearch&profile=default&fulltext=Search&search=insource%3A%2Fmanualofrecommen1905amer%2F...

You cannot overwrite this file.

There are no pages that use this file.

Retrieved from "https://commons.wikimedia.org/w/index.php?title=File:Manual_of_recommended_practice_for_railway_engineering_and_maintenance_of_way_(1905)_(14572502487).jpg&oldid=648682493"