Identifier: streetrailwayjo181901newy (find matches)
Title: The Street railway journal
Year: 1884 (1880s)
Authors:
Subjects: Street-railroads Electric railroads Transportation
Publisher: New York : McGraw Pub. Co.
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

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e details of the device as applied to singletrucks and maximum traction trucks. The latest forni of brakediffers but slightly from that pre\iousIy described, the making ofseveral minor changes having been thought advisable. One of theseis the introduction of a ball and socket joint at the end of the link-connecting the track-shoe with the wheel-shoe lever giving :i de-sirable addition to the flexibility of this connection. The supiiort STREET RAILWAY JOURNAL. for the springs from which tiie track-shoes arc suspended has hecnlowered so that the bolts at the top of these springs are entirelyindependent and slightly remoxed from the side sill of the car.The track-shoe has been improved somewhat in design and greatly (Vol. XVII L No. i8. are placed the small circuit closers, of which a cross section isshown. These circuit closers consist of a deep cup made of copperor aluminum containing mercury, in which rests an aluminum orcopper pin ha\ ing an iron head. When the magnet is above one of
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MAGNETIC BRAKE APPLIED TO MAXIMUM TRACTION TRUCK strengthened thereby, the yoke bemg so made at present as to moreevenly distribute the strains coming upon it. In the brake, as ap-plied to maximum traction trucks, the compactness of the ap-paratus is shown in the engraving. The circuits have beenleft as formerly, the electrical part of the apparatus beingunchanged by the slight mechanical improvements men-tioned above. The exhibit of the brake in operation, withthe accompanying heaters in the car, which are a featureof the system, in conjunction with the Westinghouse Elec-tric & Manufacturing Companys exhibit at the recentconvention of the American Street Railway Association,attracted more attention from the delegates than has beengiven to any individual exhibit for some years. The nov-elty of the device itself and the combination of a magneticbrake and heater which use only the energy of momentumcontained in the car for operation appealed as strongly tothe engineers of power stat

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