Device for locking a switch blade with a stock rail

Details Device for locking a switch blade with a stock rail Device for locking a switch blade with a stock rail

1991-05-02

1993-03-23

Huppert, Michael S.

Railway switches and signals

Switches

Point

246448, E01B 720

Patent

active

051957035

ABSTRACT:
A device for locking a switch blade (10, 12) with a stock rail (14, 16) is proposed, whereby the switch blade is held down on a supporting surface only when it is in locked and unlocked positions. When the switch blade (10, 12) is in the locked position it is acted upon by a resultant force (53) that prevents both a rotation of the switch blade and its rising up.

REFERENCES:
patent: 3836771 (1974-09-01), Berst
patent: 4842225 (1989-06-01), Carmes
patent: 4860978 (1989-08-01), Durchschlag et al.
patent: 4921189 (1990-05-01), Callegari
Morgenschweis, Otto: Weichen fur Schienen-Schnellverkehr. In: Eisenbahningenieur 28, H.3, 1977, S.101-107.
Prospekt der Firma Integra, CH 8304 Wallisellen, Bestell-Nr. HTS 3006/179, eingeg.im DPA Oct. 1979.

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