The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 01, 1991
Filed:
May. 17, 1989
Hermann Orasche, Zeltweg, AT;
Johann Rieger, Zeltweg, AT;
Abstract
In a device for fixing stock rails (1) in railway switches, including a base plate (2) for the stock rail (1) and a sliding chair (3) for the switch tongue mounted on the base plate and comprising an elongated spring element (6) for pressing down the rail foot and preferably having the shape of a plate, the spring element (6) can be introduced, preferably without tension, into a tunnel-shaped recess (5) provided in the sliding chair (3) and extending in a direction approximately normal to the stock rail. The upper edge of the tongue-shaped recess (5) within the sliding chair (3) extends, with the formation of a kink (13), in direction towards the rail foot steeper in upward direction that in an area (11) extending more flatly in front of the kink (13). A separate wedge (10) can, for the purpose of guying the spring element (6) against the rail foot, be driven in within the area (11) of flatter extension of the upper edge at a distance from the kink (13) of the upper edge. On account of the wedges presence, a progressive spring characteristic of the spring element (6) can easily be adapted to the requirements.