Railways – Trolley transfer
Patent
1982-04-23
1984-10-16
Reeves, Robert B.
Railways
Trolley transfer
104130, 246415R, B61J 106
Patent
active
044767870
ABSTRACT:
A switch for a railway system having a common track, and upper and lower branch tracks, each track comprising a pair of rails with one rail disposed above the other. The switch comprises a fixed support between the common and branch tracks, upper and lower fixed switching rails on the fixed support associated with the upper and lower branch tracks, respectively, a pair of movable switching rails movable between a raised position in which the pair extends between the common track and the upper fixed switching rails and a lowered position in which the pair extends between the common track and the lower fixed switching rails, and a plurality of movable supports for the movable switching rails mounted on the fixed support at spaced intervals. Each movable support is guided for movement transversely with respect to the direction of length of the movable switching rails and generally in the plane of these rails. An actuator bar having linear cams thereon is engageable with the movable supports for moving each of them through a predetermined range of movement, the range of movement progressively increasing from the movable support adjacent the common track to the movable support adjacent the branch tracks.
REFERENCES:
patent: 78500 (1868-06-01), Wharton, Jr.
patent: 1411162 (1922-03-01), Coates
patent: 3878792 (1975-04-01), Larson
patent: 3890904 (1975-06-01), Edwards
patent: 4174820 (1979-11-01), Kempa
Foster Glenn
Reeves Robert B.
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