File:Old and new London - a narrative of its history, its people, and its places (1873) (14592017707).jpg

Identifier: oldnewlondonnarr05thor (find matches)
Title: Old and new London : a narrative of its history, its people, and its places
Year: 1873 (1870s)
Authors: Thornbury, Walter, 1828-1876
Subjects:
Publisher: London : Cassell, Petter, & Galpin
Contributing Library: University of California Libraries
Digitizing Sponsor: Internet Archive

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shed from thegasometers established at either end of the line.The gasholders are kept charged with supplies fromthe neighbouring gas-works, and are so heavilyweighted that the elastic bags along the top of thecarriages can be filled (by means of * hydrantsand flexible tubes in connection with the gas-holders) in the short space of two or three minutes.The light thus afforded to the nassengers is so bright Underground London.) UNDERGROUND SIGNALS. 229 as to utterly remove all sense ot travelling under-ground, and entirely dissipate that nervousnesswhich the semi-obscurity of ordinary oil-lightedrailway carriages gives to the sensitive during theirtransit through the tunnels on other lines. Railway News gives all that need be said on thissubject:— We will suppose, says the writer of a cleverarticle upon Underground Signals, in the publi-cation before mentioned, the signal-man to be at From the rapid rate at which the trains are dis- . Baker Street; on the down line he will haveposses-
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ENTRANCE TO THE CLERKENWELL TUNNEL FROM FARRINGDON STREET. patched one after the other on this line, it will bereadily conceived that the system of signalling mustbe one of the greatest exactitude in order to ensureperfect safety. The system, however, is so simple,and at the same time so certain, as to require noexercise of skill on the part of the signal-man, butrather to bring the official working them down tothe level of the unerring machine upon which hehas to operate. The following extract from the212 sion of the line to the Edgware Road Station, onthe up line possession of the length to PortlandRoad Station. In the front of each dial there isan opening, in which appears, as the case may be,the words Line clear on a white ground, or, Train on line, on a red ground. Below this aretwo keys, one red and one white, having over themcorresponding words to those which appear in theopening on the face of the telegraph dial. Press 2.,0 OLD AND NEW LONDON. rUiiderground London. the white k

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