Railway "block" Signalling : the Principles of Train Signalling And Apparatus for Ensuring Safety
The book Railway "block" Signalling : the Principles of Train Signalling And Apparatus for Ensuring Safety was written by author James Pigg Here you can read free online of Railway "block" Signalling : the Principles of Train Signalling And Apparatus for Ensuring Safety book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Railway "block" Signalling : the Principles of Train Signalling And Apparatus for Ensuring Safety a good or bad book?
What reading level is Railway "block" Signalling : the Principles of Train Signalling And Apparatus for Ensuring Safety book?
To quickly assess the difficulty of the text, read a short excerpt:
1 and No. 2 are actuated by the movement of the cam-wheel (C, Fig. 87), and change the positions of contact every quarter revolu- tion of C. The switch marked " bell key " is actuated by the 248 RAILWAY SIGNALLING. ■depression of the lever similarly lettered in Fig. 86. Normally the bell key (Fig. 88) makes contact at " 23 " ; when the lever is depressed, contact is made at " 33." The " local battery key " and " staff lock Fig. 88. — Webb and Thompson's Electrical Train Staff Diagram' ot Connec...tions for One Section of Single Line. switch " bars (Fig. 88) are operated by the switch on the right hand of Fig. 86. When the handle is as shown by Fig. 86, the " staff lock " bar makes contact at "22" and the "local battery" bar is RAILWAY SIGNALLING. 249 -disconnected. When the handle is placed to " For staff " the " staff lock " bar makes contact at " 32 " and the " local battery " bar at 31. The cut-off switch (Fig. 88) is operated by the left-hand switch, shown in Fig. 86. When the indicator attached to the handle is in the position shown it does not affect the " cut off" switch, shown in Fig.
You can download books for free in various formats, such as epub, pdf, azw, mobi, txt and others on book networks site. Additionally, the entire text is available for online reading through our e-reader. Our site is not responsible for the performance of third-party products (sites).
User Reviews: