B - Operations – Transporting – 60 – L
Patent
B - Operations, Transporting
60
L
346/30
B60L 3/00 (2006.01) B61L 3/14 (2006.01) B61L 3/18 (2006.01)
Patent
CA 1131336
AUTOMATIC BLOCK CONTROL SYSTEM FOR SELF-PROPELLED VEHICLES ABSTRACT A block control system for wheeled, track- mounted vehicles each having a driving motor energized from power conductor rails extending parallel to the track through collector shoes mounted on the vehicle. Main and spur line tracks merging at a track switch are each provided with successive traffic control zones each having a signalling section of conductor bar and a blocking section of conductor bar. The signalling and blocking conductor bar sections are engageable respect- ively by separate signalling and blocking contact shoes carried by each vehicle. A block control relay on each vehicle includes a contact in series with the vehicle driving motor control circuit, and the operational state of this relay is regulated by a traffic control circuit which includes the blocking contact shoe and the conduc- tor bar section engaged thereby and which applies a blocking signal to one zone by energization of a traf- fic control relay responsive to the presence of a ve- hicle in another zone. Main and spur line traffic con- trol relays are interlocked, thus giving preference to traffic on one of the lines.
326704
Brennan Ward T.
Macmunn George D.
Marks & Clerk
Webb (jervis B.) Company
LandOfFree
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