Time cut outs and special short rail track circuit arrangement provides automatic restart and backout clearing of gates at crossings where switching moves are involved; project includes electric gates and flashing light signals at two crossings, Harvard Street and Heights Blvd.
Special gate circuits in Houston
Ry Signaling
Railway Signaling ; 41 , n 6
1948
Aufsatz (Zeitschrift)
Englisch
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Engineering Index Backfile | 1933
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