US 4,307,667 A · Railroad track relaying train

Abstract

A railroad track relaying train comprises, in addition to the cars for transporting the ballast screening machines and a car equipped with power-wrenches for fixing the tie-screws, a sequence of working cars including a tie- and rail-removing car, a ballast clearing car, and a tie and rail laying car, these cars being interconnected by means of coupling frames supported by caterpillar trucks adapted to keep the working cars on the selected path. The tie and rail removing car comprises an elevator capable of lifting and rotating at least one tie or a track span around ballast conveyors, in order to deposit at least one tie or track span upon a transport element. The train is capable of performing all of the operations necessary for removing the old track, excavating and screening the old ballast, and laying the new track on the screened ballast, without stopping its forward motion when removing the old track.

Claims7

Dependent claims

A train for relaying railroad track in a relaying zone comprising:

(a) cars for transporting ties and fixing means,
(b) a sequence of working cars comprising a car for removing old rails and ties, a ballast excavating car, and a track relaying car,
(c) first conveyor means for transporting the excavated ballast toward a cleaning station on a car outside the relaying zone,
(d) second conveyor means for transporting the cleaned ballast to a storage and distribution bin behind the excavation area for preparing new track,
(e) first transport means for transporting the old ties, said first transport means being installed above at least said first conveyor means,
(f) second transport means for transporting new ties, and
(g) combined elevator and turning means for lifting at least one old tie laterally of at least said first conveyor means while turning it from transverse to longitudinal orientation and for moving it above the level of said first transport means.

4 more elements

Dependencies are inferred from the claim text.

Railroad track relaying train

Life of this patent

Railroad track relaying train

Life of this patent

Abstract

Claims7