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US 9,487,920 B2Granted
Double frog for track crossings
AssigneesVoestalpine Weichensysteme GmbH, Voestalpine Vae GmbH
InventorAlfred Lang
Life of this patent
Estimating the term…
Abstract
In a double frog for track crossings with two opposing noses that are realized in a common material block and to which a check rail with at least one guide surface for a wheel is assigned, the check rail region featuring the guide surface is separably fastened on a check rail mounting that is realized in one piece with the material block.
Claims8
A double frog for track crossings with two opposing noses that are realized in a common material block and to which a check rail with at least one guide surface for a wheel is assigned, wherein
- said common material block comprises a unitary one-piece casting, said unitary one-piece casting comprising a check rail mounting and the two opposing noses,
- said check rail mounting for receiving and for having fastened thereto a check rail,
- a check rail having a check rail region having a guide surface,
- the check rail region having the at least one guide surface is separably fastened on the check rail mounting, and
- said double frog having wing rails and a neck portion wherein the wing rails converge at the neck portion.
2 more elements
A double frog for a slip switch for track crossings,
- the double frog having a common one-piece unitary material block that has two opposing noses, has opposing inner and outer sides, and has a check rail mounting to which a check rail with at least one guide surface for a wheel is assigned,
- an inner wing rail and an outer wing rail,
- wherein the inner wing rail and outer wing rail of the double frog are respectively connected to the opposing inner and outer sides of the one-piece unitary material block by means of screw joints, the outer wing rail comprising outer switch blades, and the inner wing rail comprising inner switch blades, the inner wing rail and outer wing rail for transferring a wheel from a first track to a second track, and
- a check rail having a check rail region having at least one guide surface that is fastened to the check rail mounting.
1 more element
Dependencies are inferred from the claim text.