Apparatus for locking moveable switch parts

Details Apparatus for locking moveable switch parts Apparatus for locking moveable switch parts

1993-12-17

1995-10-31

Le, Mark T.

Railway switches and signals

Switches

Lock

B61L 1100

Patent

active

054622450

ABSTRACT:
In an apparatus that is used to lock the end positions of moveable switch-point parts, in particular a switch-point lock, in which two parts (2, 3) that are moveable relative to each other can be moved in at least one direction of movement in a position in which they are positively locked, the parts that can be moved relative to each other are formed by a tube (2) and a bolt (3) that is axially guided within the tube (2), additional separate lock elements (4) such as, for example, balls or rollers that can be displaced in a radial direction, being used (FIG. 1).

REFERENCES:
patent: 1446743 (1923-02-01), Fisher
patent: 3269199 (1966-08-01), Deehan et al.
patent: 3937295 (1976-02-01), Wright
patent: 4586425 (1986-05-01), Redman et al.
patent: 4991515 (1991-02-01), Evenzon et al.

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