Apparatus for lifting and moving a rail
AssigneeW & D Mcculloch Ltd.
InventorWilliam Francis McCulloch
Life of this patent
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Abstract
A rail lifting head (10) comprises a head gate member (20) defining a gate aperture (22), a rail support member (24) removably secured to the gate member (20) and adapted to support a rail vertically within the gate aperture (22), and a head cartridge (100) which is removably secured to the head gate member (20). The head cartridge (100) includes two opposed vertical rollers (128) which support a rail laterally within the gate aperture and a fixing (112) which secures the head cartridge (100) to the head gate member (20). The rail support member (24) is removable from the head gate member (20).
Claims17
A rail lifting head comprising:
- a head gate member defining a gate aperture;
- a rail support member removably secured to the head gate member and adapted to support a rail vertically within the gate aperture;
- and
- a head cartridge adapted to be removably secured to the head gate member, wherein the head cartridge includes two pairs of opposed vertical rollers adapted to support the rail laterally within the gate aperture and a fixing adapted to removably secure the head cartridge to the head gate member, wherein the vertical rollers are each mounted for rotation about a vertical axis of rotation, and wherein the vertical axes of rotation are arranged to form a rectangular grid in plan.
Dependencies are inferred from the claim text.