Electro pneumatic car retarder installation on east-bound hump at Allentown, Pa. of Central Railroad of New Jersey is described; details of retarder installation; power equipment, and facilities provided including loud speakers, and microphones located in each retarder operator's tower and at crest of hump.
Union electro-pneumatic car retarder installation at Allentown, Penna
Penn State Engr
Penn State Engineer ; 11 , n 2
1929
2 pages
2 Figs.
Article (Journal)
English
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