American engineer and railroad journal (1893) (14756210284)

Identifier: americanengineer67newy (find matches)
Title: American engineer and railroad journal
Year: 1893 (1890s)
Authors:
Subjects: Railroad engineering Engineering Railroads Railroad cars
Publisher: New York : M.N. Forney
Contributing Library: Carnegie Library of Pittsburgh
Digitizing Sponsor: Lyrasis Members and Sloan Foundation



Text Appearing Before Image:
junction tlie insidated line car-riers are mounted on a slidingframe, so that they can be shiftedlaterally from one to the otherline. Tliese points are marked byincandescent lights. The locomotive, which is about8 ft. total length, has two axles,3 ft. 3 in. apart, carries a motorwith a Ilefner-Alteneck armatureand 4(i-;)art commutator, makingthe same number of revolutions—700—as the primary dynamo,which is reduced by a screw andworm-wheel to 8M revolutions onthe driving shaft, and to 34 revo-lutions on the front driving axle,by chain gearing, in order to ob-tain the re(iuired speed of 74 milesper hour. The driving axle iscoupled to the hinder one by asimilar (thain, the total adhesionweight of the engine being required for the full train of livevehicles. When only the frontaxle is driving, the load nuist bereduced to three. The current is taken and re-turned by a pair of curved tubu-lar arms, forming spring poles,with insulated iron plates at theirends upon spring carriers, which
Text Appearing After Image:
Vol. LXVII, No. 4.) AND RAILROAD JOURNAL. 185