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

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:
me lesson. For ex-ample, one road found that the best results followedwhen catenary hangers were spaced at long intervals.The general opinion seems to be that the contact wireshould, in effect, lie upon the collector, the hangers be-ing merely to hold it in a minimum height positionwhen not in active contact service. Loop hangers per-mitting relative motion of messenger and contact wirehave, therefore, become popular. On the Philadelphia-Paoli electrification a few hardspots developed in the overhead, as was to be expected.There was slight trouble also with the section breaks.Smoke deposits on the insulators required the reinforc-ing of some of them. On the whole, however, the in-auguration of the service was carried out with remark-able smoothness, and the experiments on the main linehave solved the problems of the Chestnut Hill branchwork now progressing well and the other extensions ofthe electric service which must come in due time. 680 ELECTRIC RAILWAY JOURNAL (Vol. XLVII, No. 15
Text Appearing After Image:
April 8, 1916) ELECTRIC RAILWAY JOURNAL 681 Operation of the P. R. R. Philadelphia- Paoli Electrification Notes on the Plans Used for Eliminating the Difficulties Which Were Experienced Duringthe Early Period of Operation and on the Organization of theOperating Staff in the Electrified Zone By F. G. GRIMSHAW Assistant Engineer of Electrical Equipment, Pennsylvania Railroad, Philadelphia, Pa. THE electrification of the main-line suburban serv-ice between Philadelphia and Paoli, a distance of20 miles, was undertaken for the purpose of relievingthe congestion of train movements at Broad streetstation which accompanied all-steam operation. A de-tailed study of the conditions at this point had demon-strated that by handling this service with multiple-unitelectric trains instead of steam locomotives, a very con-siderable reduction in the number of shifting move-ments could be made and the traffic density at the throatof the station so reduced as to provide, in effect, a rea-sonable margin o

Note About Images