Abstract: This invention relates to an impact compactor including a wheeled chassis structure and at least one non-round roller carried on an axle assembly. The axle assembly is rotatably mounted on a drag link, which is pivotally mounted on the chassis structure. The compactor includes also a lifting arrangement for lifting the roller from the ground, including a lifting arm, located above the drag link and pivotally displaceable with respect to the chassis structure, and a piston/cylinder mechanism for pivoting it. The lifting arm has a depending lifting formation that can releasably engage either one of the drag link and the axle assembly carried by the drag link for raising the roller from the ground. The configuration of the lifting arrangement provides for suitable accommodation of the piston/cylinder mechanism, which is problematic in some conventional-type compactors and associated with certain risks of mechanical failure during compaction operations.

Abstract: A floor surface finishing device includes a plane leveling machine having a plurality of rotary blades adapted to be rotated in a propeller manner by the driving force from a motor while keeping in contact with a floor surface to be finished. A planar finishing blade is connected to the planar leveling machine through a connecting member. In this state, the finishing blade is located in a portion of the outer peripheral regions of the planes of rotation of the rotary blades. Further, on the side opposite to the finishing blade of the plane leveling machine, an operating handle for the operator to manipulate the floor surface finishing device is attached.

Abstract: A speed bump device is provided. The speed bump device comprises a first parallelogram frame, wherein the frame comprises an upper nested beam and a lower nested beam, wherein the upper beam and the lower beam are connected by way of at least one pivotable connecting arm, wherein the lower beam comprises at least one depression and at least one raised section, and wherein the upper beam is displaceable, relative to the lower beam, by way of the at least one connecting arm, from a retracted position, through a maximally extended position, to a raised position. A road surface element may suitably overlie the upper beam.

Abstract: A tube body having open upper and lower ends and a cylindrical bore there between has an opening along the length thereof. A driver is secured to the tube body adjacent to the upper end. A push rod has a free end. The free end is adapted to move downwardly to an advanced orientation adjacent to the lower end and upwardly to a retracted orientation above the opening. A control component with an operator controlled handle is adapted to move the ram. A funnel is secured to the tube body. The funnel is adapted to feed particulate material into the bore when in the retracted orientation and from the bore when in the advanced orientation.

Abstract: A bridging device (10) for providing a bridging surface (12) between two points comprising a stack of interjoined beams (14) housed in a retracted position in a housing (11) mounted at a first point; and a drive system that drives the beams (14) to slide one over the other to telescopically extend out of the housing (11) from the retracted position to an extended position to thereby form a bridging surface (12) to a second point.

Abstract: A method and apparatus for laying a curb is disclosed. The apparatus features a preferably tracked vehicle (tractor) that connects to a frame having a hopper. A hydraulic lifting arrangement enables hydraulic controls on the vehicle to elevate/lower the frame. The frame has a hopper for receiving wet concrete and a curb shaping portion that shapes the wet concrete into a curb shape. A specially configured interface maintains attitude of the frame during use.

Abstract: Passenger boarding bridges have adjustable walkways that are elevated high above the ground when servicing aircraft doorways. Passenger safety is improved by automatically stabilizing the passenger boarding bridge when it is in an aligned condition. A method for automatically stabilizing the passenger boarding bridge includes moving the aircraft-engaging end of the passenger boarding bridge into an aligned relationship relative to the doorway of an aircraft. The aligned relationship between the aircraft-engaging end of the passenger boarding bridge and the doorway of the aircraft is detected automatically. Adjustable jacks, which are fixedly mounted to the passenger boarding bridge wheel carriage, are actuated between a retracted condition and an extended condition. In the extended condition, the adjustable jacks engage a ground surface below the passenger boarding bridge, thereby increasing the stability of the passenger boarding bridge.

Abstract: A coupling assembly is attached to the upper surface of a board having upper and lower surfaces. The coupling assembly is extendable upwardly for coupling to a covering surface. A plurality of projections on the lower surface of the board are extendable downwardly for contacting a floor for support. A plurality of apertures extends through the board for functioning with the projections for ventilation and moisture abatement.

Abstract: A slipform sled for paving street curbs and gutters has a hopper and a curb and gutter mold. A pivoting mold assembly having a standard curb elevation mold and a driveway curb elevation mold is mounted on the slipform sled. The pivoting mold assembly pivots on a shaft oriented parallel to the direction of motion of the slipform sled. Paving material is flowed into the hopper and is extruded through the standard curb mold or the driveway curb mold while the sled is moving providing a smooth uniform finish. Only the relatively small transition section between the standard curb and driveway curb needs hand finishing. The elevation of a vibrator in the hopper is changed to correspond to the elevation of the curb extruded.

Abstract: A removable bollard is provided. A bollard is attached to a bollard plate with a catch fixed to one end and a lock juncture fixed near the opposite end of the bollard plate. Additionally provided is a base plate with a catch receiver at one end of the base plate, a retractable latch and a latch receiver at an opposite end of the base plate. The retractable latch has a first position and a second position. In the first position the catch is encompassed by the catch receiver on the base plate to couple with the base plate end, where the retractable latch is then locked to the lock juncture to lock the bollard plate to the base plate. When in the second position, the retractable latch is recessed into the latch recess within the base plate and the bollard and bollard plate are removed, leaving an obstruction-free access way.

Abstract: Portland Cement Concrete with steel reinforcement mats or rods used in airport runways, highways, and other objects need to have the cement broken up for recycling or disposal and the steel mat reused or the steel recycled. The pavement removal machine lifts the concrete off a roadbed and places it on an anvil. A hammer then cracks the concrete and breaks it into small pieces, which fall away from the reinforcing steel. The concrete and the steel are then recycled. The pavement removal machine has legs which are moveable between a road working position and a transport position and can translate the frame of the machine up and down. The hammers can be gravity drop or powered. The steel can be cut into sections as the pavement is continuously torn up at a rate of about 1 lane mile per day.

Abstract: A concrete structure for replenishing an aquifer and a method for constructing the same is provided. The structure is comprised of a pavement layer with surface drains that extend through the pavement layer and into an aggregate leach field. The leach field includes leach lines spanning the leach field. An aggregate drain extends from the leach field into a sand lens. Precipitation which falls upon the structure thus flows through the surface drain, absorbed into the aggregate leach field, and transported to the aggregate drains by way of aggregate leach lines. The water is then absorbed into the sand lens, ultimately replenishing the aquifer. Existing conventional pavement structures are retrofitted by the removal of a section of the pavement, and filling the same with porous concrete.

Abstract: A method and a surface seeded exposed aggregate concrete product are provided that precisely simulate the appearance and qualities of various types of natural quarried stone, such as granite, marble, rhinestone, bluestone, and brownstone, to name a few. Implementations of the present invention are characterized by the use of fine sand and aggregate broadcast over the exposed surface of poured concrete, which surface has been prepared to receive the same. Subsequently, a surface retarder and finishing steps are performed to produce the concrete product which assimilates the characteristics and colors of natural quarried stone, such as speckles, inclusions, flecks, graining, fractures, joints, knots, crystallization patterns, streaks, weathering, etc.