Electric railway journal (1916) (14759231025)

Identifier: electricrailway471916newy (find matches)

Title: Electric railway journal

Year: 1908 (1900s)

Authors:

Subjects: Electric railroads

Publisher: (New York) McGraw Hill Pub. Co

Contributing Library: Smithsonian Libraries

Digitizing Sponsor: Smithsonian Libraries

Text Appearing Before Image:

experimenting they were all re-moved. With change in temperature from summer towinter conditions, the alignment and height of the con-tact wire, which after the removal of the pull-off wasfree to move, changed on curves, making adjustmentsat certain points necessary. A few of the original pull-offs were replaced prior to a recent cold snap as aprecautionary measure at points where the pantographswere riding too much off center. It is felt, however, thatsuch adjustments in the contact-wire suspension canbe generally made as will allow a safe margin of clear-ance between end horn and contact wire for both summerand winter conditions, as well as keep the variation inheight of wire above running rail within permissiblelimits. Considerable trouble was experienced during the firstsleet storm on account of the formation of sleet on thepantographs, the weight of the accumulated ice counter-acting the pantograph spring tension and preventingproper contact between shoe and trolley wire. Experi-

Text Appearing After Image:

P. R. R. MAIN LINE ELECTRIFICATION—CATENARY INSULATOR, 14-IN. POST TYPE WITH PIPE SUPPORT. AT RIGHT, EXPERIMENTALCATENARY INSULATOR WITH 13-IN. AND 12y2-IN. PETTICOATS, ALSO SHOWN IN SILHOUETTE IN VIEW ON THE OPPOSITE PAGE 684 ELECTRIC RAILWAY JOURNAL (Vol. XLVII, No. 15 ments were made with different grease mixtures as acoating for the pantograph tubing for the purpose ofpreventing or reducing the formation of ice on thoseparts, but with indifferent success. It was found neces-sary to remove the ice from the pantographs at ter-minals. Experiment showed that the sleet could bequickly and thoroughly removed by the use of steam di-rected against the pantograph framework from suitablenozzles handled by men stationed on the car roofs afterthe pantographs had been locked down and grounded,and the matter is now handled in this way. As a furtherprecautionary measure during times of severe sleetstorms extra electric trains are operated over the line,covering the hours when no regular electr

electric railway journal 1916 book illustrations history of technology electric power railroad industry railroads industrial history electric railways electric railroads electrification images from internet archive

1916

Smithsonian Libraries

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