Railway or tramway rail and rail fastening system
OwnerCharles Pennyinventor
Life of this patent
Estimating the term…
Abstract
A railway or tramway rail fastening system includes a shell (2) and a resilient fill (4) within the shell for holding a rail (1), the shell having an inner profile open channel form to receive the rail, the inner profile being shaped to hold firmly, through the fill (4), the head and base region and/or an intermediate portion of the rail. The arrangement is such that pinch points are produced which hold the rail in place.
Claims68
A railway or tramway rail fastening system, for setting in a slat or a bed, said fastening system comprising:
- a rail for a railway or a tramway, said rail having a head, a narrower intermediate portion and a base region;
- a shell adapted to be set in the slab or bed, the shell having an inner profile of open channel form to receive the rail, the inner profile of the shell being shaped at an upper, open side and at a lower, base side to hold the rail firmly at the head and base thereof, respectively;
- and
- a resilient fill within the shell, the shell acting through the fill to hold the rail;
- characterized in that the inner profile of the shell between its base and the open side is narrowed so as to form a detent or pinch point through which a region of the rail has to be passed upon insertion of the rail into the shell to retain the rail.
A railway or tramway rail fastening system, for setting in a slab or a bed, said fastening system comprising:
- a rail for a railway or a tramway, said rail being of substantially symmetrical form having head and base portions joined by an intermediate portion of greater girth;
- a shell adapted to be set in slab or bed, the shell having an inner profile of open channel form to receive the rail, the inner profile of the shell being shaped intermediate an upper, open side and a lower, base side to hold the rail firmly at the intermediate portion thereof;
- and
- a resilient fill within the shell, the shell holding the rail through the fill;
- characterized in that the inner profile of the shell at the open side is narrowed so as to form a detent or pinch point through which the intermediate portion of the rail has to be passed upon insertion of the rail into the shell to retain the rail.
A railway or tramway rail fastening system, for setting in a slab or a bed, said fastening system comprising:
- a rail for a railway or a tramway, said rail having a head, at least one narrower intermediate portion and a base region;
- a shell adapted to be set in the slab or bed, the shell having an inner profile of open channel form to receive the rail, the inner profile of the shell being shaped at a lower, base end thereof to hold at least the base region of the rail firmly;
- and
- a resilient fill within the shell, the shell holding the rail through the fill;
- characterized in that seals are provided at the upper, open end of the shell, the inner profile of the shell being shaped at is upper, open end to hold the rail, at the sides thereof, firmly though the seals;
- and in that the inner profile of the shell between its base and the open end is narrowed so as to form a detent or pinch point through which a region of the rail has to be passed upon insertion of the rail into the shell to retain the rail.
Dependencies are inferred from the claim text.