Abstract: Disclosed is a double bogey arrangement comprised of four wheels mounted in an opposed fashion for supporting the T-shaped upper end of a road lane barrier. The double bogey structure includes an elastomeric mounting to absorb operating shocks while transferring lane barriers from one lane to another. The four-wheel bogey precludes problems existing with present lane barrier positioning vehicles wherein the support wheels are caught in the separation between the series of lane barriers, thereby causing damage to the support wheels and to the lane barriers.

Abstract: A mobile transfer and transport vehicle is adapted to move a barrier system, having a plurality of pivotally interconnected and closely spaced modules, on a roadway or the like. The vehicle includes a conveyor having series of guide and support rollers for engaging, supporting, lifting and transferring the barrier system from a first side of the vehicle to a second side thereof. A drive system is mounted on the conveyor for frictionally engaging the modules to either pull or retard movement of the modules through the conveyor. The drive system aids in maintaining proper spacing between the modules, particularly when they are moved on a curved roadway.

Abstract: A mobile transfer and transport vehicle is adapted to move a barrier system, having a plurality of interconnected and closely spaced modules, on a roadway or the like. The vehicle includes a conveyor having series of guide and support rollers for engaging, supporting, lifting and transferring the barrier system from a first side of said vehicle to a second side thereof. At least some of the rollers are spring-biased into engagement with the modules when they move through curved portions of a serpentine-like transfer path through the conveyor.

Abstract: An improved two-way, multiple bottom plow is described. The plow is provided with an hydraulically actuated lift assist mechanism which works in conjunction with the tractor hitch to lift the plow out of the plowing position. A hydraulic system is provided for automatically pivoting the roll-over portion of the plow from one side of the tractor to the opposite side. Ascension of the roll-over portion of the plow to a point past the vertical is effected by powered hydraulic roll-over cylinder which is then shut off. The roll-over portion of the plow then descends under its own weight against the resistance of trapped pressure fluid which can only bleed off through a restricted orifice. The top hitch between tractor and plow is a spring biased pivotable connection which can "float" relative to the plow.