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US 4,274,334 AGranted
Machine for changing rails
AssigneeCanron, Inc.
InventorRaymond R. Lund
Life of this patent
Estimating the term…
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AssigneeCanron, Inc.
InventorRaymond R. Lund
Estimating the term…
A machine for removing old rails and replacing them with new rails is constituted by an adzing station where the surfaces of the old ties are adzed after removing the old rails and tie plates. The adzing station has two adzers spaced laterally on either side of the center of the machine for adzing laterally spaced locations at which new tie plates and rails have to be laid. The adzers are mounted, respectively, on two frames which can move together laterally with respect to a third frame in response to a center line follower so that the adzers are always located at the correct lateral position even on curved track. The third frame is attached to the main frame of the machine and it can be pivoted selectively about two spaced lateral locations adjacent to where the adzers are mounted in response to control signals from an inclinometer mounted on the pivotal frame and control signals from a superelevation device measuring the superelevation of the track. Thus the adzers are maintained substantially perpendicular to the ties for all conditions of cross-level including superelevation on curves.
A machine for adzing at two laterally spaced locations corresponding to the desired locations of new rails, the upper surfaces of wooden ties of a railway track from which old rails and tie plates have been removed, the machine comprising a main frame having a forward end mounted on first rail engaging means adapted to run on the old rails and a rearward end mounted on second rail engaging means adapted to run on the new rails, a pivotal frame carried on the main frame at a position between and remote from the first and second rail engaging means, two adzers mounted at two laterally spaced locations on the pivotal frame, and means for pivoting the pivotal frame selectively about approximately one adzer location or approximately the other adzer location, whereby both adzers can be positioned substantially perpendicular to the ties even on superelevated track.
A machine having means for removing old rails from a track, lifting the tie plates, preparing the existing wooden ties and relaying tie plates and new rails on the prepared wooden ties, the machine having an adzing station for adzing upper surfaces of the ties at two laterally spaced locations corresponding to the desired locations of the new rails, the adzing station comprising a main frame having a forward end mounted on first rail engaging means adapted to run on the old rails and a rearward end mounted on second rail engaging means adapted to run on the new rails, a pivotal frame carried on the main frame at a position between and remote from the first and second rail engaging means, two adzers mounted at two laterally spaced locations on the pivotal frame, and means for pivoting the pivotal frame selectively about approximately one adzer location or approximately the other adzer location, whereby both adzers can be positioned substantially perpendicular to the ties even on superelevated track.
A machine for adzing at two laterally spaced locations corresponding to the desired locations of new rails, the upper surfaces of wooden ties of a railroad track from which rails and tie plates have been removed, the machine comprising a frame, two adzers mounted at two laterally spaced locations on said frame, independent means for moving each adzer vertically, height sensing means attached to said frame forward of each adzer and engageable with the ties for sensing the height of the respective adzer from a tie, and circuit means for controlling independent moving means in response to the meausured height.
Dependencies are inferred from the claim text.