Electricity: transmission to vehicles – Conductors – At or below ground surface
Patent
1976-05-17
1979-05-22
Blix, Trygve M.
Electricity: transmission to vehicles
Conductors
At or below ground surface
104246, 191 45R, 191 49, 191 57, 191 591, B60M 130, B60L 538
Patent
active
041554345
ABSTRACT:
A rail electrification system for electric railways utilizing 3-phase power, comprising three conductor rails arranged in a group characterized by a staggered relationship, commonly known as a delta configuration, so that two of the rails face in one direction and the third faces in an opposite direction. For taking off the 3-phase power from the conductor rails, the car is equipped with two sets of three collectors or shoes each, with the sets being disposed on opposite sides of the conductor rail group. Three of the collectors (not all in one set) function when the car is traveling in one direction along the rails, whereas the remaining three collectors function when the car has been turned around and is traveling in the opposite direction along the rails. The collecting of the 3-phase power is accomplished by having two collectors of one set engage two of the three rails on its side of the assembly, and having a collector of the other or opposite set engage a third rail which is on the other side of the assembly. The simple, stacked relation of the collectors in the sets is utilized, together with insulating tie bars and spring mountings and in conjunction with existing signal rails which can function as guides, to enable the required stroke or movements of the collectors to be reduced to a minimum whereby retracking at high speeds is possible with reasonably short pick-up guides. All six collectors can be retracked simultaneously, after which three separated collectors of the sets detrack since they will not be in use.
REFERENCES:
patent: 3672308 (1972-06-01), Segar
patent: 3786762 (1974-01-01), Corkum
patent: 3847256 (1974-11-01), Zurek
Blix Trygve M.
Eisenzopf Reinhard J.
Lehmann H. Gibner
Lehmann K. Gibner
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