Abstract: A drag box or box scraper for scraping and moving loose materials on a surface uses a three point hitch having a pivotally mounted blade box holding a scraping blade attached thereto to allow the scraping blade to pivot to ride over rigid objects, such as man hole covers during road preparations. Attached water tanks add weight to the drag box and feeds a water sprayer used for dust suppression.

Abstract: A paving machine for spreading, leveling and finishing concrete having a main frame, center module, bolsters laterally movably, and a crawler track associated with respective aft and forward ends of the bolsters. A bolster swing leg for each crawler track supports an upright jacking column. A worm gear drive permits rotational movements of the crawler track and the jacking column. A hinge bracket is interposed between each swing leg and a surface of the bolsters to enable pivotal movements of the swing leg. A length-adjustable holder engages the pivot pin on the hinge bracket and pivotally engages the swing leg. The holder permits pivotal motions of the swing leg in its length-adjustable configuration and prevents substantially any motion of the swing leg in its fixed-length configuration. A feedback loop cooperates with transducers keeping the crawler tracks position. The paving machine can be reconfigured into a narrowed transport configuration.

Abstract: A concrete finishing machine includes a mobile frame supported above the slab on front and rear wheels with at least one screed roller and a plurality of vibrators are suspended from the frame between the front and rear wheels. The front and rear wheels are rotatable at least ninety degrees between a longitudinally directed traveling orientation and a laterally directed concrete finishing orientation. The front and rear wheels are driven and steerable so that the mobile frame may travel longitudinally down a lane of a road, and then upon pivoting of the wheels, move laterally over a hole in an adjacent lane having uncured concrete to be finished by the finishing machine.

Abstract: A track system may include a plurality of connected slat members that may form rollable tracks. The rollable tracks may be used in moving vehicles across sensitive ground. The rollable track may be deployed using various methods and/or apparatus such as, e.g., deployment apparatus including one or more spool portions for rolling and unrolling the rollable tracks.

Abstract: The invention relates to a method and an apparatus for automatically guiding a machine that picks up and places roadway barrier segments using satellite global positioning and ultrasonic sensors. The machine is guided by both GPS signals and signals based on ultrasonic measurement of distance from the existing barrier segments.

Abstract: The present invention relates to machine for distributing and compacting paving mix on a paving surface. The machine includes a mix unloading section, an auger, a screed, a first drive arrangement, and a second drive arrangement. The auger distributes the mix on a paving surface. The screed compacts the mix on a paving surface. The first drive arrangement includes road wheels for self transport at highway speeds. The second drive arrangement includes a track assembly for jobsite transportation during a paving operation.

Abstract: A gravel grading attachment assembly prepares gravel subgrade to a form prior to concrete placement. The assembly includes a main blade coupled to an attachment member to provide a straight bottom edge. First and second roller assemblies are coupled to and extend from the main blade. Each of a first roller and a second roller rotate in a plane substantially transverse to the straight bottom edge of the main blade. The first roller and the second roller rest upon spaced guide surfaces and the main blade is maintained at a consistent spacing relative to the guide surfaces as the first and second rollers are moved on the guide surfaces.

Abstract: A slab jack assembly for raising a fragmented slab from between sections of a concrete slab from which the fragmented slab is cut comprises a planar support positionable on top of the fragmented slab. Jacks are mounted on opposite sides of the planar support to engage an upper surface of the concrete slab. Securement pins mounted on the planar support are insertable into holes bored in the plurality of fragments in the fragmented slab and expandable within the holes to secure the fragments to the planar support. The first and second jacks are then operable to lift the planar support and fragments upward relative to the concrete slab.

Abstract: A paving machine for spreading, leveling and finishing concrete having a main frame, center module, bolsters laterally movably, and a crawler track associated with respective aft and forward ends of the bolsters. A bolster swing leg for each crawler track supports an upright jacking column. A worm gear drive permits rotational movements of the crawler track and the jacking column. A hinge bracket is interposed between each swing leg and a surface of the bolsters to enable pivotal movements of the swing leg. A length-adjustable holder engages the pivot pin on the hinge bracket and pivotally engages the swing leg. The holder permits pivotal motions of the swing leg in its length-adjustable configuration and prevents substantially any motion of the swing leg in its fixed-length configuration. A feedback loop cooperates with transducers keeping the crawler tracks position. The paving machine can be reconfigured into a narrowed transport configuration.

Abstract: A self-propelled concrete finishing trowel has an integrated transport system that allows the towel to be moved from location to location. The transport system includes a pair of spaced wheel assemblies, each including a pair of wheels that are connected to a frame of the trowel. The wheels of each respective wheel assembly are connected to one another via a powered actuator such as a double acting hydraulic cylinder. The powered actuator is actuatable to raise and lower the first and second wheels from a stowed position in which the wheels are located above the ground and the blades are supported on the ground to a deployed position in which the wheel are supported on the ground and the blades are raised from the ground.

Abstract: A method for transferring a barrier includes providing a barrier having first and second sides and a plurality of barrier modules connected end-to-end, driving a transfer vehicle along a path on the first side of the barrier, wherein the vehicle is supported entirely by a support surface on the first side of the barrier and is free of any engagement with the support surface on the second side of the barrier. The transfer vehicle includes a barrier transfer device with a support disposed above the barrier and a carriage coupled to the support. The method further includes sequentially engaging the plurality of barrier modules with the carriage, sequentially moving the plurality of barrier modules in a lateral direction with the carriage, and sequentially releasing the plurality of barrier modules from the carriage.

Abstract: A road building machine for road surface paving is provided.

Abstract: A self-propelled concrete finishing trowel has an integrated transport system that allows the towel to be moved from location to location. The transport system includes a pair of spaced wheel assemblies, each including a pair of wheels that are connected to a frame of the trowel. The wheels of each respective wheel assembly are connected to one another via a powered actuator such as a double acting hydraulic cylinder. The powered actuator is actuatable to raise and lower the first and second wheels from a stowed position in which the wheels are located above the ground and the blades are supported on the ground to a deployed position in which the wheel are supported on the ground and the blades are raised from the ground.

Abstract: A paving machine which is configured to move in a paving direction for spreading, leveling and finishing concrete into a form having a generally upwardly exposed, finished concrete surface and terminating in lateral concrete sides. The paving machine has a main frame, including a center module, bolsters laterally movably connected to respective lateral sides of the center module for changing a spacing between the bolsters, and a crawler track associated with respective aft and forward ends of the bolsters. A bolster swing leg for each crawler track supports an upright jacking column secured to the swing leg proximate a free end thereof. A worm gear drive between the jacking column and the crawler track permits rotational movements of the crawler track and the jacking column about an upright axis.

Abstract: A multi-use asphalt paving tractor with frame raise capability and a blind-mateable connector to facilitate quick connection with interchangeable attachments for performing the functions of a paver, a mix transfer conveyor and road widener.

Abstract: A propulsion system is for a road milling machine with a rotatable cutter drum (3). The system includes four crawler assemblies (12) movably coupled with the mainframe so as to define front and rear, and left and right, pairs of crawler assemblies. Four steering actuators (14) are each coupled with a separate crawler assembly and each angularly displaces the crawler about a vertical axis (12a). A first pump (16A) is fluidly coupled with the left pair of crawlers and a second pump (16B) is fluidly coupled with the right pair of crawlers. A control (20) is configured to selectively operate the four actuators in a plurality of different steering modes, one steering mode being a circle steer mode, and to operate the two pumps such that one of the left and right pairs of crawlers are drivable by the first pump in one direction while the other pair of crawlers are drivable in an opposing direction.

Abstract: A multi-use asphalt paving tractor with frame raise capability and a blind-mateable connector to facilitate quick connection with interchangeable attachments for performing the functions of a paver, a mix transfer conveyor and road widener.

Abstract: A mounting apparatus for an infrared heating device comprising a platform attached to a frame of an infrared heating chamber, at least one telescoping member affixed to said platform, and at least one attachment component which fixedly attaches said at least one telescoping members to said truck frame and allows said support bar to be moved along a horizontal axis at varying positions from the back of a vehicle.

Abstract: A bollard including a series of at least two nested, inverted U-shaped forms of decreasing height set around a common vertical axis. Each form has an upper transverse portion and two parallel, vertical legs extending therefrom. The U-shaped forms are made of metal pipes, and have physical characteristics such that on impact by a moving vehicle, including an automobile or a truck, the U-shaped forms will initiate a “crumple zone” type reaction, so as to meet governmental standards addressing the threats posed by vehicular traffic.

Abstract: A mobile asphalt production machine mixes bituminous concrete at the job site through a mixing auger mechanism mounted in an insulated housing. Propane burners provide heat within the mixing auger mechanism and within the insulated housing to produce a hot-mix bituminous concrete in large or small batches. The components of the asphalt mixture are stored in separate bins that can be re-filled at the job site to provide a continuous supply of asphalt. Hot liquid bitumen is added to heated aggregate within the mixing auger mechanism. Recycled asphalt can be added through a port in the mixing auger for incorporation into the mixture. Controls permit the rate of flow of each individual component to be selectively varied in order to change the recipe for the mixture and to provide calibration of the component, while a master control will maintain the pre-established flow rates through a variable speed of operation.

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 milling machine for milling a paved surface has milling tools connected to an underside of a body of the machine. At least one ferrous metal detector is attached to a front end of the machine. Electronic equipment is disposed within the machine and is in communication with the metal detector, the equipment being adapted to interpret feedback from the detector.

Abstract: A process and device for the recycling of asphalt including at least one preheater unit. The preheater having a heater, scarifying rakes, and a bin to dispense aggregate. Also include is a recycling machine having a heater, scarifying rakes, a plurality of extension mills, a main mill, as well as a pug mill having first and second downwardly rotating rotors, the pug mill mixes asphalt and liquid additives together to form a homogenous mix; and at least one screed for laying the homogeneously mixed asphalt to grade.

Abstract: A mechanical wedge mechanism comprising base member, output member, and movable wedge member in which frictional connections between mutually movable mechanical members are replaced with shear deformations in elastomeric shims connecting respective surfaces of the members, thus effectively reducing frictional losses in the mechanism.

Abstract: A lightweight one man screed apparatus to automatically strike off and level uncured concrete flatwork, includes a tri-pod framework beneath which a cutting/leveling member operates. The apparatus is controlled by two grade setting devices, adjustably mounted to the screed tool, which may be adjusted relative to a laser plane generating system. Physical control of the screed member may be provided by at least one screed tool pivotal arm assembly moved for and aft by a carriage operated under the tri-pod framework within a fore and aft footprint. The screed tool is adjusted to grade by being raised or lowered by at least one linear actuators responding to an electronic controller. When moving the framework and screed assembly into freshly poured concrete, an operator is assisted by retractable wheels. The wheels are rotationally stowable or used deployed as part of the tripod/transport system facilitating mobility.

Abstract: A golf green roller apparatus that can be hitched to a golf cart or any vehicle utilizing a clevis pin-type coupler. The roller is mounted on an articulated frame. A pair of wheels having tires thereon is also mounted on the frame. An easy-to-operate electric actuator functions to lower or raise the wheels while simultaneously lowering or raising the roller. When the wheels are lowered, the roller is raised to a storage position. Conversely, when the wheels are raised the roller is lowered to contact the surface to be rolled. The electric actuator can be powered by a twelve-volt battery. Connector cables are provided so that the roller apparatus can be easily attached to the battery of a golf cart or the like.

Abstract: A machine for providing hot-in-place recycling and repaving of an existing asphalt-based pavement, in which the pavement is first heated. Using this machine the heated pavement surface is then scarified, and new aggregate is dispensed onto it, to form a recycled, preheated asphalt and aggregate mixture. This mixture is again heated and scarified to premix it, and a new pavement surface is now milled to grade and width by applying this mixture using a plurality of extension mills having a main frame. The pavement surface is then remilled to grade using a main mill. Rejuvenator fluid is introduced in the main mill of the machine, and mixed with the recycled asphalt and aggregate mxiture. Rejuvenator fluid is also introduced into a pug mill of the machine and again mixed with the recycled asphalt and aggregate mixture. The rejuvenator-enriched, recycled asphalt and aggregate windrow thus formed is then laid to grade using one or more screeds.

Abstract: An apparatus for cutting slots in pavement has a slot cutting assembly with several pairs of rotating blades mounted to a vehicle and vertically adjustable relative to the vehicle. A lift system moves the vehicle between a first position wherein the lift is not engaging the ground and a raised position wherein the lift engages the ground. A slider assembly uses a hydraulic to move the vehicle horizontally on rails relative to the lift when the vehicle is at the raised position. In operation, the vehicle is lifted and the cutting assembly lowered so the blades engage the pavement. The vehicle slides back and forth on the rails as the blades cut slot pairs. The material between each slot pair is removed to form a recess receiving reinforcement devices.

Abstract: An apparatus is provided for spreading aggregate material on ground. The apparatus includes a body 12, an engine 14 carried by the body, motive structure 18 powered by the engine to move the apparatus along the ground. A hopper 20 is associated with the body and is constructed and arranged to receive aggregate material from a source of aggregate material. Dispensing structure 24, associated with the hopper, is constructed and arranged to dispense aggregate material from the hopper to the ground. Wheel structure 30, carried by the body, is constructed and arranged to be movable between an inoperative position, wherein the motive structure is in a ground engaging position and the wheel structure is in a position so as not to engage the ground, and an operative position, wherein the wheel structure is in a ground engaging position and the motive structure is in a position so as not to engage the ground.

Abstract: A concrete placing apparatus is provided for placing uncured concrete on a support surface, such as an elevated deck of a building. The apparatus comprises a base unit and a movable support, with a conduit assembly extending therebetween. A supply end of the conduit assembly is positioned at the base unit and is connected to a supply line for uncured concrete or other material, while a dispensing end of the conduit assembly is supported by the movable support and extends outwardly therefrom to dispense uncured concrete or other material through a discharge outlet. The movable support is movable arcuately and/or radially relative to the base unit to dispense the concrete in a generally uniform manner over a targeted area. The apparatus may further include a screeding device at the discharge outlet to grade, level, compact and smooth the concrete as it is placed.

Abstract: A single roller concrete finishing machine for finishing a concrete surface includes a primary motorized unit and a secondary unmotorized unit disposed on each side of a surface to be paved, with a single roller disposed on the unfinished surface which connects the primary unit and the secondary unit. The primary unit includes a first base having an elongated first handle having two ends, one end of the first handle being connected to the first base, and the other end of the first handle being connected to handlebars, below which an engaging lever is disposed. The secondary unit includes a second base with an elongated second handle similar to the first handle, but without the engaging lever. The handles of each of the primary unit and the secondary unit are swingably adjustable in a horizontal plane to aid in the leveling of the concrete surface to be finished. The primary unit has an engine mounted on the first base, and a mechanism to rotate the roller.

Abstract: This invention is related to a ground advance shoring system and the construction method using such a system.

Abstract: A dolly for transporting a heavy object has a frame, a lifting element, and a pair of wheels. The lifting element engages a lifting point of the heavy object to enable the dolly to support the heavy object for wheeled movement. The frame is shaped to fit around the heavy object when the lifting element is removably attached to the lifting point of the heavy object. The lifting element is preferably rotatably connected to the frame to facilitate lifting the heavy object onto the dolly. Each of the pair of wheels is operably attached to the frame and aligned along an axis to support the heavy object between the pair of wheels such that the center of gravity of the heavy object is located approximately on the axis when the lifting element is attached to the lifting point of the heavy object.

Abstract: A powered concrete screed apparatus comprising a roller rotatably attached to a chassis. The chassis includes an elongated member that extends in spaced, parallel relation to the roller, and is of substantially the same length as the roller. The elongated member is attached to the roller at one end by a motor removably mounted thereto and which includes gears extending therefrom which are operatively attached to the roller, and at its opposite end by a plate which extends between the tubing and roller. A pair of handles are mounted to and extend upwardly from the tubular member, and are independently, slidably adjustable along the length of the tubular member. The handles are also telescopically adjustable, thereby permitting their lengths to be selectively controlled. A throttle is removably attached to one of the handles and electrically connected to the motor, thereby permitting selective control of the power output from the motor.

Abstract: An advertising display method involves marking grass sports fields by bending the grass blades in definite zones and bending or leaving them straight in other zones in order to form an image or a word. The difference in the direction given to the grass blades is quite visible to the spectator. The grass blades are directed by means of an apparatus mounted on rollers which runs on the grass surface. The apparatus also has brushes and/or additional rollers which rotate to straighten the grass blades on definite sectors. The sectors form an image or the letters of a words. The engines which drive the apparatus and the brushes and/or rollers are electrical and are controlled by a computer. The image or word to represent on the grass, as well as the position of the apparatus on the surface to work, are entered in the memory of a computer.

Abstract: A device for repair of a roadway embankment includes a movable base which is capable of being driven on a two-lane roadway. A platform is mounted on the base and is rotatable with respect to the base about a generally vertical axis. A drilling rig is mounted on one end of the platform for drilling a hole for receiving an elongate reinforcing rail, and a power unit is mounted at an opposite end of the platform for generating power for the drilling rig and for counterbalancing the weight of the drilling rig. The drilling rig includes a drilling bit and a compressor for generating a flow of air to remove the drilling cuttings. The length of the platform is such that the distance between the centerline of the drilling bit and the outer side of the closest supporting wheel allows the base to be located on a undamaged roadway and the drilling bit operated to drill a hole for receiving the reinforcing rail in the damaged portion.

Abstract: A riding trowel used for concrete finishing includes a dolly wheel lifting system. The lifting system elevates the trowel out of contact with the concrete surface when transporting, adjusting, or maintenancing the trowel. The trowel comprises a rigid metallic frame normally offset from the concrete surface to be finished by a pair of downwardly projecting, bladed rotors. A pair of primary steering control levers is linked to the rotors beneath the frame for trowel operation. Each rotor assembly comprises a rotatable blade assembly depending downwardly into contact with the concrete surface. The wheel system comprises a cooperating pair of spaced apart, dolly wheel assemblies which are removably fitted to the front and back of the frame, so that the trowel may be pushed around for loading and unloading purposes in directions generally coincident with its longitudinal axis.

Abstract: A method and apparatus for smoothing epoxy flooring material utilizes a weighted chassis to the bottom of which are mounted two planar blades in angular adjustable manner. A handle mounted pivotally to the top of the chassis may be brought forward to tilt the chassis, bringing normally elevated wheels into ground contact for transporting the apparatus in blade floor noncontacting positions.

Abstract: A machine for compacting and leveling a poured floor covering. The machine includes a frame having a pair of side members and a pair of parallel, ground engaging, cylindrical rollers rotatably supported on the side members and supporting the frame for movement in forward and reverse directions. A screw member is rotatably supported on the side members and has a right-hand screw segment over a portion of the length thereof and a left-hand screw segment over a remainder portion of the length thereof. If desired, a second screw member, a trowelling mechanism and a vibratory mechanism, can be provided. Structure is provided on the front screw member for pushing the material arriving at the region between the screw segments forwardly of the machine, the leveled material passing under the screw member, as the machine is moved forwardly, being compacted by successive passage beneath the cylindrical rollers.

Abstract: An apparatus for screeding and leveling coverings and coatings compounded with a binding agent, more specially a synthetic resin binding agent, is made up of a front straight edge for leveling and a back straight edge for screeding, the two straight edges being joined together as a parallelogram having a driving system for moving them backwards and forwards lengthways. As part of the apparatus there is a track-laying vehicle and a system for vertical adjustment of the straight edges.

Abstract: A detachable wheeled dolly device for separable connection to the base portion and the handle of relatively larger and heavy wheelless power driven handle manipulated machines, whereby a downward push on the handle tilts such machines from out of surface contact and facilitates transport of such machines from one location to another as required.

Abstract: An attachment for a broom or similar device has a bracket engageable on the broom handle and an axle pivotally mounted on the bracket. The axle carries wheels, castors or the like and a stop is provided to limit the range of pivotal movement so that the axle can be positioned relative to the handle so that the wheels or castors either support said broom on the ground or do not support said broom on the ground.

Abstract: A self-propelled hydraulic power supply vehicle and tool mounting platform having an hydraulic fluid reservoir integral with and forming the structural frame of the vehicle, hydraulically actuated driving and steering apparatus for moving the vehicle across a support surface while performing a cutting operation on the support surface, and castor wheels facilitating vehicle mobility which are rotated into operative position raising the vehicle so that the wheels normally supporting the vehicle are raised out of contact with the surface for mobility when the device is not cutting the support surface.

Abstract: A towed roller for compacting asphalt, earth, etc., including a frame in which a roller drum is journaled, the frame having a forwardly extending drawbar positionable transversely with respect to the frame by hydraulic means to provide an offset in the towed position of the roller, and the frame carrying a transverse shaft which supports at its outer ends rearwardly-extending arms carrying ground-engaging transport wheels, the arms being positionable by hydraulic means to occupy a lowered transport position or to occupy a raised storage position, and drum sprinkler means coupled to be enabled or disabled automatically depending upon the position which the arms carrying the ground engaging wheels presently occupy.