Tug unit for rail-mounted slip-form paver
AssigneeRobert McGregor & Sons Limited
InventorKenneth Alfred Cochrane
Life of this patent
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Abstract
A means for towing and feeding a rail-mounted slip form paver has a self-propelled tug unit, a draw bar structure adapted to connect the unit and the paver in spaced relation, a hopper on the tug for receiving fluid concrete and including archimedes screws for delivering the fluid concrete to one end of a conveyor carried by the draw bar structure, a discharge chute at the other end of the conveyor for delivering fluid concrete in advance of the paver and a separating member between the paver and the tug unit operable to split and space continuous bundled steel rod reinforcement for incorporation in the concrete base laid by the paver.
Claims7
Apparatus for paving railway track comprising a self-propelled tug unit, a slip form paver adapted to be mounted on prelocated paving rails accurately set for line and level, a draw bar unit structure connecting the tug unit and the paver in spaced relation, a conveyor carrier by the draw bar structure for supplying fluid concrete in advance of the paver, a conforming plate on the paver for moulding the fluid concrete to a desired surface configuration, a movable rod separator disposed intermediate the spaced tug unit and paver for splitting continuous bundled steel rod reinforcement and spacing the rods across the width of the track for incorporation into the body of the concrete from the front, means on the paver for picking up the separated rod reinforcement and introducing the reinforcement into the concrete, and means on the paver for forming holes in the paved concrete for the permanent fixture of rail means.
A method of slip-form paving a railway track comprising the steps of:
- accurately setting paving rail members for line and level in a location where it is desired to slip form pave,
- locating a paver, mounted on wheels, on the rail members,
- drawing the paver along the rails at a desired speed of advance by a draw bar structure interconnecting the paver with a spaced self-propelled tug unit,
- supplying fluid concrete to a conveyor carried by the draw bar structure to be deposited in advance of the paver,
- locating a movable separator, mounted on wheels, on the rail members intermediate the paver and the tug unit,
- laying a bundle of continuous rod reinforcement between the paving rail members,
- drawing the separator along the rail member by means of the tug unit to split and separate the bundled rods into spaced disposition,
- introducing the spaced reinforcement rods into the concrete being paved at a height determined by a rod guide means on the paver,
- conforming the concrete to a desired surface configuration by a conforming plate on the paver, and
- forming holes in the paved concrete for the permanent fixture of rail members.
Dependencies are inferred from the claim text.