Barrier manufactured by Westinghouse Brake and Signal Co for protection of highway crossings or for controlling traffic in factories and other places; it consists of 5-1/2-in. diam tubular post to which electrically driven operating mechanism is attached. (see also Engineering v 175 n 4537 Jan 9 1953 p 63-4)
Electrically-operated traffic barrier
Engineer
Engineer ; 194 , n 5057
1952
Article (Journal)
English
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Electrically-operated traffic barrier
Engineering Index Backfile | 1953
Mineral and goods traffic electrically operated
Engineering Index Backfile | 1919
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