File:The Street railway journal (1907) (14573748087).jpg

Identifier: streetrailwayjo301907newy (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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and two bar equalizers. The transomgusses make a very rigid connection between frame andtransoms, and integral with the gussets are brake hangerlugs and bearings for swing link pins, the design therebyeliminating numerous small parts that are usually bolted tothe frame and transoms. The swinging bolsters are car- 684 STREET RAILWAY JOURNAL. (Vol. XXX. No. 15. ried on double elliptic springs although for trucks of greatercapacities triple elliptic springs may be used. The wear orrubbing pieces between the bolster and the transom servethe double purpose of preventing the bolster from crampingor tilting in starting and stopping, and of transmitting thestrains on the bolster through the transoms to the truck sideframes without interfering with the free action of thebolster and springs. The coil springs carrying the truck onthe two-bar equalizers are carefully calculated to suit theloads, including portions of truck and motor weights. The details of construction are in accord with the best
Text Appearing After Image:
TRUCK BUILT FOR THE HUDSON VALLEY locomotive building practice. All bolt holes through framesare reamed, and bolts turned with a taper for a driving fit.All bent parts of frame are made to dies and formers. Thetransom channels are carried by lips or shoulders providedon the frame center braces, thus reducing the shear on theusual bolts or rivits through brace and transom. The pedes-tals are provided with steel plate wear pieces, tightly fittedto and covering all rubbing surfaces, and are tied togetherat the bottom by large bolts through the pedestal legs andiron thimble or spreader. All brake lever and hanger pinsare made as large as possible to provide large bearings and destal thimbles and brake shoes are of cast iron. Brakeheads, brake connections and transom angle washers areof malleable iron. Journal bearings are of brass, lead lined.The journal boxes used on the truck illustrated wer; sup-plied by the T. H. Symington Company. The center platesand side bearings are of the Baltimo

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