. Electric railway journal . feedersystem. The use of the steel messenger and steel trolley public because of a quality of service which has gainedits confidence and support, many other benefits arebeing anticipated. They may be hard to detect at firstbut will bulk large over a period of several maintenance must necessarily demand less outlayand attention when the weight of the rolling stock isdecreased by more than a third. A lighter car isalso bound to have a subtractive effect on the powerdemand, a condition especially welcomed because thepower taken to start the old cars on dir
. Electric railway journal . feedersystem. The use of the steel messenger and steel trolley public because of a quality of service which has gainedits confidence and support, many other benefits arebeing anticipated. They may be hard to detect at firstbut will bulk large over a period of several maintenance must necessarily demand less outlayand attention when the weight of the rolling stock isdecreased by more than a third. A lighter car isalso bound to have a subtractive effect on the powerdemand, a condition especially welcomed because thepower taken to start the old cars on direct currentwas very great and the total amount taken within thecity was considerable. Improved Traffic Conditions inSan Francisco AN ACCOUNT was published on page 49 of the issueL of this paper for July 9 of the routes on MarketStreet in San Francisco, on the lower end of whichthere are four tracks. Two of these belong to theMunicipal Railway and two to the United accompanying table shows statistics of the cars. At Left, This Is the Present Type of Equipment Which Is Giving Such Satisfactory Right, Interior View of the Hanover Line Passenger Cars wire necessitates feed taps at every third pole. Theconstruction described above provides an overhead whichis sufficiently resilient and flexible to permit the polesafely to follow the wire without undue wear on eitherwire or shoe. In changing to direct current, consideration wasgiven to stripping the old cars of all their alternating-current equipment, leaving only the apparatus requiredfor direct current. Even though this were done it wasfound that the cars so revamped would still be approxi-mately 15,000 lb. heavier than new steel Brill is quickly seen that the energy saving alone wouldjustify the purchase of the new lighter cars, since theyhave the same passenger carrying capacity and alsoare able to maintain a better schedule. The transmis-sion has also eliminated the use in the power stationof two
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