Ballast-free permanent rail way having recessed tie with central fastening element
AssigneeWalter Bau-Aktiengesellschaft
InventorsRudolf Gerlach, Ralf Walter, Bernhard Schad, Gunther Leykauf, Josef Eisenmann
Life of this patent
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Abstract
To make a ballast-free permanent rail way, an asphalt base is applied to a substructure comprised of concrete. Railway ties, which have a recess in the center on their underside, are laid on the asphalt base. In order to secure the ties against transverse forces and to assure accurate fitting and wear-free anchoring, the ties have a first bore in the center and the substructure has a blind bore. The blind bore is filled with an adhesive and then a dowel or a threaded rod is inserted into the blind bore which passes through a sliding spacer sleeve inserted into the first bore.
Claims22
A method for making a ballast-free permanent rail way in which an asphalt base is applied to a substructure comprised of concrete and on which monoblock ties are laid each of which is provided with a recess in the center on their underside and which lie on both sides of this recess on the asphalt base and which are secured against transverse forces, comprised of boring each tie with a first bore in its center, laying the respective tie, then making an additional bore leading to the substructure as a blind bore via said first bore, inserting an adhesive into the blind bore, driving a fastener into the first bore to penetrate the bores whereby the wall of the said first bore can be shifted in the direction of the bore axis along the fastener.
A ballast-free rail way comprising an asphalt base disposed on a substructure comprised of concrete monoblock ties each containing a central recess on their underside and lying on both sides of the recess on the asphalt base, the ties being secured against transverse forces, a first bore in the center of each tie, an additional bore as a blind bore passing to said substructure via said first bore, an adhesive contained in the blind bore, and a fastener passing through both bores, whereby the wall of the first bore can be shifted in the direction of the bore axis along the fastener.
A ballast-free permanent rail way as defined in 17, including a nut screwed onto the threaded rod and a spring plate inserted between the tie and the nut.
Dependencies are inferred from the claim text.