Patent application number | Description | Published |
20080257971 | Method of Adjusting the Height of a Fixed Rail Carriageway - Method of adjusting the height of a fixed rail carriageway, in which the sleepers supporting the rails are embedded in a carriageway panel resting on a substrate includes the steps of separating the carriageway panel from the substrate at the common contact face, forming filling apertures extending from the upper face to the lower face of the carriageway panel, lifting the carriageway panel to a fixed target height, incorporating a flowable casting material through the filling apertures in order to fill the space between the carriageway panel and the substrate, wherein separation is effected by pressure impacts. | 10-23-2008 |
20080315002 | Fixed Carriageway for Rail Vehicles - Fitted carriageway for rail vehicles having rails fixed on sleepers, which are supported by a structure engineered in concrete or a concrete composite, in which case the sleepers are embedded in the structural concrete of the engineered structure or in a protective concrete layer or are mounted direct on the structural concrete or the protective concrete layer. | 12-25-2008 |
20100181699 | CONCRETE SLEEPER AND METHOD FOR PRODUCING THE SAME - Method of manufacturing a concrete sleeper, comprising the following steps: insertion of pre-stressing rods into a sleeper mould, simultaneous automated tensioning of the individual pre-stressing rods, filling of the sleeper mould with concrete, leaving of the concrete to harden, removal of the concrete sleeper from the mould, wherein for one concrete sleeper more than four, in particular five to eight, pre-stressing rods are used and the pre-stressing rods are tensioned individually yet simultaneously. | 07-22-2010 |
20100314795 | METHOD FOR THE PRODUCTION OF SWITCH TIES, AND SWITCH TIES PRODUCED ACCORDING TO SAID METHOD - Disclosed is a method for continuously producing switch ties which differ from one another with respect to the length thereof and the mounting position of rail fastenings. Said method comprises the following steps: one or more supporting metal sheets and/or one or more internal molds are mounted in a tie mold according to the length and the shape of the switch tie to be produced, or at lease one tie mold is used which is adapted to the geometry of the switch tie to be produced; bracing bars are inserted as a reinforcement; the bracing bars are simultaneously tightened in an automatic manner by means of pairs of spindles, each bracing bar being individually tightened; concrete is filled into the tie mold; the switch tie is allowed to set; the switch tie is removed from the mold. | 12-16-2010 |