Apparatus for bonding together pieces of track ballast
AssigneeFranz Plasser Bahnbaumaschinen-Industriegesellschaft m.b.H.
InventorsJosef Theurer, Klaus Riessberger
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Abstract
While a tamping unit with tamping tools for tamping track ballast is lowered to immerse the tamping tools in the ballast and to tamp the same, a metered amount of a liquid bonding medium is delivered to and through internal conduits in the tamping tools and ejected through an opening under pressure thereby to bond together pieces of ballast coated by the ejected bonding medium. The commencement and termination of the bonding medium delivery is controlled in response to the depth of immersion of the tamping tools in the ballast.
Claims5
An apparatus for bonding together pieces of tamped ballast forming the bed of a track consisting of ties and rails fastened to the ties, comprising
- 1. a mobile track tamping machine having a frame mounted for mobility on the track,
- 2. a ballast tamping tool having an internal conduit ending in an opening for ejecting a liquid passing through the conduit under pressure,
- 3. a vertically movable carrier for the tamping tool mounted on the frame for moving the tamping tool between an upper position out of engagement with the ballast and a lower position wherein the tamping tool is immersed in the ballast for tamping thereof,
- 4. a storage container for a liquid bonding medium,
- 5. conduit means between the storage container and the internal conduit of the ballast tamping tool for delivering the liquid bonding medium from the container to the internal conduit,
- 6. a metering means for the liquid bonding medium arranged in the conduit means,
- a. the metering means consisting of a cylinder-and-piston device with an adjustable piston stroke, and
- 7. a pressure fluid operated drive for moving the piston of the device in response to the vertical movement of the tamping tool carrier.
Dependencies are inferred from the claim text.