Sources of noise in street cars and means employed to eliminate these by use of sound-deadening materials under floor, rubber padding between car bolster and frame, leaded master gears, insulated gear boxes, and quieted air compressors.
Lowering costs and bettering public relations by reducing noise
Elec. Ry. Jl
Electric Railway Journal ; 74 , n 7
1930
3 pages
8 Figs.
Aufsatz (Zeitschrift)
Englisch
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