Active switch

Details Active switch Active switch

1983-12-05

1986-07-01

Reeves, Robert B.

Railways

Switches

For toothed rail

104247, E01B 2600

Patent

active

045973369

ABSTRACT:
An active switch for the intersection region of tracks for mechanically transversely or laterally guided vehicles having support wheels without flanges; the switch which is adapted to be forced open by the vehicle and includes only a single adjustable switch member in the form of a switch tongue pivotal about a fixed bearing in the switch frog, is bent into its end position by the vehicle itself by being pressed against abutments; the cross section of the switch tongue has an approximately constant bending stiffness over its length whereby the switch tongue in the unstressed condition preferably has a curvature that lies between the curvatures of the one and the other end position.

REFERENCES:
patent: 2121696 (1938-06-01), Horn
patent: 2997004 (1961-08-01), Rosenbaum
patent: 3095827 (1963-07-01), Chadenson
patent: 4389942 (1983-06-01), Dull

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