The a B C of Railroad Signaling a Lecture Delivered Before the Harvard School O
The a B C of Railroad Signaling a Lecture Delivered Before the Harvard School O
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In our eReader you can find the full English version of the book. Read The a B C of Railroad Signaling a Lecture Delivered Before the Harvard School O Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The a B C of Railroad Signaling a Lecture Delivered Before the Harvard School O
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To quickly assess the difficulty of the text, read a short excerpt:
One or two switches may be worked by one lever. The unlocking, the mov- ing and the relocking of a switch are all performed by the switch movement, which is operated by a piston moving in a cylinder to which compressed An interlocking switch, showing a facing point lock.
air is admitted when the switch is to be moved. The indication by which assurance is given at the machine, that the movement has completed its stroke, is given by contact springs attached to the movement, a separate circuit bei...ng used to lock the lever and prevent the completed movement being made until the indication has been received at the RAILROAD SIGNALING 53 machine. The signals are of the same form and type as used for the electro-pneumatic block sig- nals. An indication circuit is provided to insure that the signal has been returned to the stop position be- fore the signal lever may be placed normal and un- An interlocking derail, showing a switch and lock movement.
lock the other levers of the route governed by the signal.
What to read after The a B C of Railroad Signaling a Lecture Delivered Before the Harvard School O?
You can find similar books in the "Read Also" column, or choose other free books by W. H. Elliott to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
One or two switches may be worked by one lever. The unlocking, the mov- ing and the relocking of a switch are all performed by the switch movement, which is operated by a piston moving in a cylinder to which compressed An interlocking switch, showing a facing point lock.
air is admitted when the switch is to be moved. The indication by which assurance is given at the machine, that the movement has completed its stroke, is given by contact springs attached to the movement, a separate circuit bei...ng used to lock the lever and prevent the completed movement being made until the indication has been received at the RAILROAD SIGNALING 53 machine. The signals are of the same form and type as used for the electro-pneumatic block sig- nals. An indication circuit is provided to insure that the signal has been returned to the stop position be- fore the signal lever may be placed normal and un- An interlocking derail, showing a switch and lock movement.
lock the other levers of the route governed by the signal.
What to read after The a B C of Railroad Signaling a Lecture Delivered Before the Harvard School O?
You can find similar books in the "Read Also" column, or choose other free books by W. H. Elliott to read onlineMoreLess
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