Abstract: A rumble strip cutter machine having a nonoscillating main frame supported on round, ground-engaging operational support wheels with an oscillating moving frame generally coplanar within the main frame, moving slightly out of the common plane during oscillatory motion effected through crank action driven by an operational support wheel. A grinder brush is mounted central under the moving frame between the frame pivot pin and the crank connection. An engine is mounted over the brush also on the moving frame drives the brush and by its weight forces the brush into pavement below. For nonoperational transport at highway speeds the main frame is lifted off of its operational support wheels by a pair of hydraulically-actuated auxiliary wheels at the main frame rear end. The front operational wheels are lifting off of the ground by rotating and locking a trailer tongue on the main frame front end toward the frame.

Abstract: A method and apparatus for controlling the mixing of asphalt aggregate with rejuvenating materials in an asphalt rejuvenating machine. According to the method, milled aggregate is discharged in a windrow of fixed width, and windrow height is compared to rejuvenating machine speed to determine a volume rate of material being processed. A processor controller calculates a required amount of rejuvenating fluid addition based on the volume rate being processed and a desired proportion of rejuvenating fluid to aggregate. The processor controller controls a sprayer which directs rejuvenating fluid at some point along a zone extending from a milling apparatus to a mixer.

Abstract: A road-marking device which sprays thick ribs of paint to a road surface, transversely to the road axis, to form rumble strips is disclosed.

Abstract: A pavement grinding apparatus includes a cutting device with a frame supporting the cutting device from above. Transversely extending parallel shafts have an offset connection imparting cyclical up and down motion to the cutting carriage and rotating arbor. A first motor drives the arbor while a second motor drives cutting carriage wheels and the support shafts. The carriage and arbor move backward relative to the grinding apparatus during the cutting motion.

Abstract: A concrete breaking apparatus includes a wheeled support assembly having an open end to accommodate the variable positioning of an impact roller therebetween and a closed end opposite the open end. A frame having opposing longitudinal arms connected near one end so as to define open and closed end portions is pivotably supported by the wheeled support assembly on pivot arms which connect the frame to the wheeled support assembly. An impact roller is fixedly interposed for rotation between the opposing longitudinal arms of the frame near the open end portion thereof. The impact roller has opposing ends, an axis of rotation through the opposing ends, and a surface equipped with spaced apart primary and secondary impact members traversing the opposing ends of the roller.

Abstract: The bead dispenser is formed from rotational molded plastic such that a hole is cored through the center of the dispenser which allows the linkage to travel through the dispenser and locate the dispenser door on the opposite side of the dispenser from the spray gun. A number of panels across the slot opening may be adjusted upwardly and downwardly to vary the width as desired by the operator.

Abstract: An apparatus and method of using the apparatus for creating rumble strips in a surface such as asphalt or concrete, including a vehicle with an attachment coupled thereto. The attachment includes a cutter wheel having teeth thereon and a flywheel coupled with the cutter wheel. A hydraulic motor is coupled with the cutter wheel for rotating the cutter wheel and the flywheel. Eccentric cams are provided for moving the cutter wheel vertically with respect to the surface being cut, and a gear box is coupled with the eccentric cams for rotating the eccentric cams. The eccentric cams do not contact the surface being cut. The apparatus further includes a sliding assembly coupled with the cutter wheel. The sliding assembly is both horizontally and vertically movable with respect to the surface being cut.

Abstract: An apparatus for creating rumble strips in a surface such as asphalt or concrete is provided. This apparatus includes a vehicle with an attachment coupled thereto. The attachment includes a cutter wheel having teeth thereon and a flywheel coupled with the cutter wheel. A hydraulic motor is coupled with the cutter wheel for rotating the cutter wheel and the flywheel. Eccentric cams are provided for moving the cutter wheel vertically with respect to the surface being cut, and a gear box is coupled with the eccentric cams for rotating the eccentric cams. The eccentric cams do not contact the surface being cut. The apparatus further includes a sliding assembly coupled with the cutter wheel. The sliding assembly is both horizontally and vertically movable with respect to the surface being cut. The present invention further includes a method for cutting rumble strips in a surface using the apparatus described above.

Abstract: A processing tool for a road surface processing machine, having a tool head coupled with a support element, wherein the support element can be exchangeably fastened on a tool holder. For increasing the non-skid properties of the road surface, the tool head is coupled by a suspension with the support element, by which the tool head can be adjusted relative to the support element.

Abstract: A reflective bead dispensing apparatus which works in conjunction with any prior art airless walk behind striping equipment. This reflective bead dispensing and paint dispensing apparatus is attachable to the rear of a vehicle. Compressed air and the vehicle's electrical system control all operations. The bead dispensing apparatus has an telescoping boom capable of pivoting around the point of attachment and extends outwardly from the point of attachment. At the end of the telescoping boom is the wheeled paint carriage which contains an air compressor, air tank, warning light, flood lights, the brake/hazard/turn signal lights, paint spray gun mounts, and reflective bead hoppers and dispensers. The carriage can pivot around the attachment point to the boom. The reflective beads are applied onto the wet paint already applied to the surface. The carriage pivots between a lowered position during striping operations and a locked upright position during relocation.

Abstract: An autonomous strip laying device for marking the ground includes a rolling frame supporting a reel of strip to be unwound, a strip unwinding assembly, elements for applying the strip on the ground including an applicator roll, a device for sectioning the strip and an assembly driving the frame and actuating the different devices and the unwinding elements. The assembly unwinding the strip and the elements for applying the strip are, at least during the unwinding and laying of the strip, mutually synchronized in rotation by synchronizing elements.

Abstract: A raking device for breaking up a surface has a plurality of rakes mounted on a rake frame and arranged to produce an upwardly directed result in force in response to a horizontally directed force arising from encountering an obstruction in a path of travel of the raking device. A rake frame support mounts the rack frame to a rake frame carrier structure and allows controlled movement of the rakes in a vertical direction. A force applicator acting between the rake from carrier and the rake frame support is provided to apply at least a downward force to the rake. The force applicator is responsive to an increase in the upwardly directed result in force above a preset amount to allow the rakes to move upwardly in response to the increase in force.

Abstract: A road-cutting apparatus for creating grooves or impressions in a road surface. The apparatus comprises a tool carrier with a rotatable cutter positioned adjacent thereto. A positioning control arm is hydraulically actuated to place the cutter in an operating position just above the road surface, and an operating control arm is hydraulically actuated to move the cutter into and out of cutting engagement with the road surface. The cutting is automatically carried out in response to a signal generated as a result of the distance traveled along the road surface by the apparatus. The road-cutting apparatus also comprises a transport wheel which can be placed into engagement with the road surface such that the cutter is spaced therefrom for transport of the apparatus to a desired location for cutting the grooves or impressions and raised above the road surface for the cutting operation.

Abstract: The invention concerns a method and an apparatus for the application of a marking (1) on a road surface (2), said apparatus comprising a vehicle which moves the apparatus over the surface (2). The marking material (3) is led from a supply container (4) to a distribution chamber (6) which, via a shutter (11), under slight pressure presses a band (12) of the marking material (3) out through an opening (14). The band of material (12) is led out towards a rotating axle (7) with blades (9). The material (3) in the band of material (12) is hereby divided into equal part elements (13) without the blades (9) touching the chamber (6) or any other parts of the apparatus. The influence of wear on the apparatus is hereby considerably reduced, even when use is made of material (3) containing abrasive additives.

Abstract: An assembly is provided for excavating cavities in a road surface for a variety of purposes, among them, the formation of rumble strips, the installation of light reflective road markers, the milling of potholes, boring of holes for various purposes and the like. The system is used in combination with a vehicle having a motor powered vertically movable rear lift gate which in use defines a vertically displaceable substantially horizontal platform. A cutting apparatus is secured to the upward facing surface of the lift gate with the actual cutting portion being mounted on a rotatable drive shaft extending laterally of the gate, such that the cutting portion projects at least partially below the bottom surface of the lift gate, whereby with the gate in a lowered position, the cutting portion can engage the surface of the road on which the vehicle resides. A motor is secured to the upper surface of the gate powers the drive shaft.

Abstract: Disclosed is a dry grooving apparatus using compressed air. The dry grooving apparatus includes a blower box arranged over an engine room, an air supply unit adapted to supply air to a cutting saw, the air supply unit including an air compressor arranged over the engine room and adapted to generate compressed air, and a first air line connected at one end thereof to the air compressor and adapted to feed the compressed air from the air compressor, the air line being opened at the other end thereof to the cutting saw via air injection ports so as to cool the cutting saw, and a dust collecting unit adapted to collect dust discharged during the operation of the cutting saw.

Abstract: A road-marking device (1) is provided by means of which thick ribs (32) of water-based paint are applied to a road surface transversely to the road axis. Each rib is formed by a high-volume spray of paint from a nozzle (28) mounted on a horizontal carriage (8) mounted for reciprocal movement along a bar (6) supported by a vehicle carrying the device. Rotation of a road wheel (2) is caused to drive the carriage in both directions along the bar, while the spraying operation is controlled by the position of ‘on’ and ‘off’ switches (12) in the path of the carriage.

Abstract: A traffic stripe including a first profiled portion having improved reflectivity and a second raised portion which provides an audible indication of its presence to a driver. Also, a method and apparatus for applying the traffic stripe including a vehicle having an apparatus for applying the traffic stripe, an applying assembly for dispersing a reflective material over the traffic stripe, another applying apparatus for applying an anti-adhesion agent, and a deformation apparatus disposed rearward thereof for forming interval grooves in the traffic stripe. The application of the anti-adhesion agent directly onto the traffic stripe or onto the deformation apparatus prevents the freshly applied traffic stripe from lifting off the road surface and adhering to the deformation apparatus.

Abstract: Apparatus and methods are provided for filling a groove in a pavement with a groove filling grout. The present invention is particularly useful for forming long-lasting pavement markings, such as lane striping.

Abstract: An apparatus and method for milling rumble strips into a pavement surface with a cutting wheel. The cutting wheel has rows of a cutting and non-cutting surface and is rotated to alternately present and withdraw a cutting surface and a non-cutting surface to the asphalt and cut a periodic rumble strip pattern as the apparatus moves forward. This alternating pattern is achieved without any up and down motion of the cutting wheel, and the apparatus can be operated a relatively rapid speed.

Abstract: Apparatus and methods are provided for filling a groove in a pavement with a groove filling grout. The present invention is used for forming pavement markings, such as lane striping.

Abstract: A method and an apparatus are disclosed for cutting rumble strips in the surface of a roadway. The apparatus is a self-propelled machine which includes a frame and a drive mechanism mounted to the frame and adapted for advancing the machine across the surface of the roadway. The machine also includes a generally cylindrical cutting drum that is mounted on the frame for rotation about an axis that is disposed generally parallel to the surface of the roadway. A plurality of cutting teeth are mounted on the outer surface of the drum in a predetermined pattern, and a mechanism is provided for rotating the cutting drum about its axis. The drum is maintained at a predetermined position with respect to the surface of the roadway so that the cutting teeth will cut into said surface a relatively constant, predetermined depth as the drum is rotated about its axis while the machine is advanced along the surface of the roadway.

Abstract: A mobile vehicle mounted highway striping system is provided for single operator driving and controlling of the stripe painting operation. Tracking control systems are provided for striping about curved vehicle paths. Automated tracking systems correct tracking errors with the only interactivity of the operator being the steering function of aligning the vehicle path with a designated striping pattern path. A video monitor comparing the striping vehicle position relative to a designated striping path is worn as a headpiece by the driver. Thus, a semi-transparent video tracking pattern displays lateral positioning of a stripe being painted by the moving vehicle as the driver keeps eyes directed upon the roadway. Automatic tracking around curves is provided. The painting vehicle is steered to follow a designated path position on the video monitor.

Abstract: A lightweight manually maneuverable, quick-drying paint striper for painting stripes on pavements, in which the hot exhaust gas of an internal combustion engine driving a paint pressurizing unit for the system is used to heat the paint by passing it through a heat exchanger to establish a temperature and viscosity appropriate for painting stripes with an air nozzle or airless nozzle. When an air nozzle is used, the air is heated by the exhaust gas in the same or another heat exchanger in a manner similar to that in which the paint is heated in the exchanger.

Abstract: A tape removal apparatus adapted to be towed behind a vehicle for removing marking tape from a road comprises a road frame hitched to the vehicle and having a pair of wheels to allow the road frame to be towed behind the vehicle and a pickup mast having a center section coupled to the road frame, a lower section extending from the center section toward the road and having a drive roller configured to engage the tape on the road to remove the tape from the road, an upper section extending from the center section toward the vehicle, and a pinch roller. The pinch roller is configured to receive the tape from the drive roller as the tape removal apparatus is towed behind the vehicle.

Abstract: A jump and return to grade function provides a means by activation of a switch to rapidly raise a milling machine to avoid an obstacle, then return the machine to the previous milling position. When the jump function is activated, the legs are extended at full speed, causing the machine to rise. In the return to grade function, the legs are retracted at controlled speeds until the previous milling depth is reached or the switch is released.

Abstract: This invention provides for painting a second coat upon a set of parallel striped lines in exact registration in one pass of a motorized painting vehicle for such applications as painting aircraft taxi stripes at airports. Beads are also registered on one of the lines in the same pass. Provisions are made for maintaining registration about curved lines by steering around curves with a shortened wheelbase vehicle and by extending paint nozzles for striping a plurality of parallel lines, typically a center twelve inch wide yellow line between two six inch wide black lines, outboard from one side of the painting vehicle. The vehicle comprises two four wheeled units articulated together by a universal articulation joint permitting vertical articulation so that the leading and trailing wheels may be lifted off the ground to reduce the wheelbase for steering around curves.

Abstract: Method for applying markings or signs to a surface (1), such as road surfaces and the like, comprising the laying down of a layer of a heated mass of a thermoplastic material (3). Before the laying down of thermoplastic material (3) there is applied a primer layer (2) on the surface (1), consisting of a curable plastic material which comprises two or more components.

Abstract: A durable colored article having fluorescent properties comprises a substantially solventless polyvinyl chloride matrix, a thioxanthene fluorescent dye, and a secondary or tertiary hindered amine light stabilizer having a molecular weight less than about 1000 grams/mole. The invention has the advantage in that it provides a flexible polyvinyl chloride film that exhibits durable fluorescent colors.

Abstract: A raised road marker has a flat bottom surface with an outer periphery. At least one cavity opens onto the bottom surface laterally inwardly of the periphery and extends upwardly into the marker body. A venting groove extends along the bottom surface from the cavity to the periphery to provide a vent for air trapped in the cavity when the marker is urged into a pool of adhesive to secure the marker to a roadway. The venting of air provides a stronger bond between the marker and adhesive. For markers having a rounded top surface, there is preferably an indexing projection on the top surface and a complementary recess on the bottom surface. This enables interlocking of a plurality of markers in a vertical stack to prevent tilting of the markers.

Abstract: A raised pavement marker includes a rigid reflector assembly that supports two retroreflectors. The reflector assembly is resiliently mounted over a base by a resilient membrane, which is secured to the base at its outer edge. When a vehicle contacts the reflector housing, downward forces supplied by the vehicle to the reflector housing deform the membrane, which allows the reflector housing to move downwardly to pavement level. After the vehicle has passed, the resilience of the membrane restores the reflector assembly to its raised position. Methods for installing and removing the pavement marker are disclosed.

Abstract: This invention provides for painting a second coat upon a set of parallel striped lines in exact registration in one pass of a motorized painting vehicle for such applications as painting aircraft taxi stripes at airports. Beads are also registered on one of the lines in the same pass. Provisions are made for maintaining registration about curved lines by steering around curves with a shortened wheelbase vehicle and by extending paint nozzles for striping a plurality of parallel lines, typically a center twelve inch wide yellow line between two six inch wide black lines, outboard from one side of the painting vehicle. The vehicle comprises two four wheeled units articulated together by a universal articulation joint permitting vertical articulation so that the leading and trailing wheels may be lifted off the ground to reduce the wheelbase for steering around curves.

Abstract: A line marking apparatus adapted in use to be advanced relative to a ground surface in a line marking direction includes a discharge opening region formed between first and second side members for discharge of line marking material therebetween onto the ground surface. The side members extend substantially parallel to the line marking direction and adjusting means is provided for moving the first and second side members towards and away from each other so as to adjust the width of a line to be marked by the apparatus. The adjusting means comprises interconnected pivotable arms, at least one of the side members being supported on the pivotable arms such that relative pivoting of the arms causes the at least one of the side members to move towards and away from the other thereof.

Abstract: An installation head is mounted on a vehicle and moves along and adjacent to a roadway as the vehicle moves along the roadway. The head has a loading station at the bottom of a vertical loading chamber and a slide that slides along a floor to move markers out of the loading station into a setting station. A setting ram forces markers down onto adhesive prepositioned on the roadway. A plurality of heads may be positioned on the vehicle and may form opposite rows for simultaneously installing markers on opposite sides of a traffic lane. An indexed marker that interlocks with adjacent markers to prevent tilting may be used to maximize the reliability of the system. Various types of delivery devices may be used to deliver markers to the loading station. These include a delivery platform or carrousel positioned above the loading chamber to deliver markers down into the loading chamber. They also include a collating tape that delivers markers into the loading chamber through a side opening.

Abstract: A method of milling is disclosed wherein mill actions from at least two cutting tools cooperate to form each respective depression in a surface of a road. These depression are generally utilized in series to inform an operator of a motor vehicle, using the produced vibration and/or noise, that the motor vehicle has left a normal driving area of the road. Variations of the invention include different methods of regulating elevational movement of each respective cutting tool. These methods include use of eccentric wheels, cam members and electronic control. Stationary positioning of each respective cutting tool on the depression installation machine is explained as is displaceable positioning wherein each respective cutting tool may be moved in a reciprocating manner to decrease operating time where the cutting tool is not capable of performing a milling action. Use of multiple cutting tool sets provide for each respective set to cooperate to form select depressions within a series of depressions.

Abstract: A reflective bead dispensing apparatus which works in conjunction with any prior art airless walk behind striping equipment. This reflective bead dispensing and paint dispensing apparatus is attachable to the rear of a vehicle. Compressed air and the vehicle's electrical system control all operations. The bead dispensing apparatus has an telescoping boom capable of pivoting around the point of attachment and extends outwardly from the point of attachment. At the end of the telescoping boom is the wheeled paint carriage which contains an air compressor, air tank, warning light, flood lights, the brake/hazard/turn signal lights, paint spray gun mounts, and reflective glass bead hoppers and dispensers. The carriage can pivot around the attachment point to the boom. The glass beads are applied onto the wet paint already applied to the surface. The carriage pivots between a lowered position during striping operations and a locked upright position during relocation.

Abstract: A superior performance highway striping system is provided with various features including single person operation for different kinds of striping requirements and simplified automatic tracking around curved striping patterns provided by articulation at a ball joint between a towing truck and trailer paint striping unit. A common non-dedicated pick-up truck tows a trailer mounted modular paint striping system that may be broken down into a hand pushed parking lot type of striper sub-system or a ride behind motorized airport runway striper sub-system for a versatility of operational environments with one or two coat striping in multiple colors and widths. The towed trailer carries two 55 gallon paint drums of different colored paint, loaded and unloaded by a one person loading winch. Thus, the striping system controlled by a single person provides the versatility of on-highway and off-highway striping.

Abstract: A mounting rail extends longitudinally along a vehicle. An installation head is mounted on the vehicle in a position fixed relative to the rail and adjacent to a first end portion of the rail. The head has a setting station from which road markers may be dispensed down onto a roadway. A glue dispenser assembly is slidably mounted on the rail. The assembly includes a dispenser with a nozzle, an anchor, and an anchor actuator. The assembly has a forward index position on a second end portion of the rail. The actuator is operable to move the anchor down into engagement with the roadway to prevent movement of the assembly relative to the roadway. A return actuator is connected to the assembly to allow the assembly to slide along the rail when the anchor is down and to positively move the assembly forwardly along the rail to return it to the index position.

Abstract: A command device for a paint supply circuit in a road marking machine (1) includes at least one paint spray gun (2) mounted on a support chassis (11) that can be moved on a roadway (10) along a line to be marked and linked to a paint supply circuit (3) provided with a triggering unit (21) for the application of the paint.

Abstract: A glue dispenser is mountable on a vehicle as part of apparatus for installing raised road markers on a roadway. Preferably, the apparatus is used in a system for automated installation of road markers. The dispenser includes a manifold having an inlet for glue fed downwardly into the manifold from a glue reservoir mounted on the vehicle. First and second glue outlets communicate with the inlet. First and second valves control opening and closing of the first and second outlets, respectively. The valves are operable both simultaneously and independently of each other to permit glue to be dispensed from only of the outlets or from both of the outlets simultaneously, as needed. The outlets are spaced apart a distance equal to a desired distance between lines of markers in a double line installation.

Abstract: An installation head is mounted on a vehicle and moves along and adjacent to a roadway as the vehicle moves along the roadway. The head has a loading station at the bottom of a vertical loading chamber and a slide that slides along a floor to move markers out of the loading station into a setting station. A setting ram forces markers down onto adhesive prepositioned on the roadway. A plurality of heads may be positioned on the vehicle and may form opposite rows for simultaneously installing markers on opposite sides of a traffic lane. An indexed marker that interlocks with adjacent markers to prevent tilting may be used to maximize the reliability of the system. Various types of delivery devices may be used to deliver markers to the loading station. These include a delivery platform or carrousel positioned above the loading chamber to deliver markers down into the loading chamber. They also include a collating tape that delivers markers into the loading chamber through a side opening.

Abstract: A road surface condition changing apparatus which increases a coefficient of friction between a wheel of a vehicle and a road surface without using any consumable materials. A cylinder member is provided in front of the wheel of the vehicle. The cylinder member is rotatable about a rotational axis corresponding to a longitudinal center of the cylinder member. The cylinder member is pressed against a road surface so as to change a road surface condition while being rotated. A support mechanism supports the cylinder member so that the rotational axis of the cylinder member is parallel to the road surface and is inclined with respect to the rotational axis of the wheel. Protrusions, brushes or a water absorbing material may be provided on an outer surface of the cylinder member.

Abstract: The present invention is an improved method and apparatus for supplying electromagnetic energy to a body having at least one substantially planar surface comprises moving over the planar surface a self-propelled container housing a source of electromagnetic energy and having an open side which is substantially perforate to the electromagnetic energy thereby permitting transmission of the energy from the container to the body while all other surfaces of the container substantially block transmission therethrough. Concurrently with the movement of the container responding within the container to at least one selected parameter to control the movement of the container over the planar surface.

Abstract: A chariot for use with a self-propelled pavement marking tape applicator. The chariot allows a single operator to apply pavement marking tape with the applicator and to depress the tape against a road surface by means of one or more rollers supporting the chariot and the operator.

Abstract: A self-propelled pavement marking tape applicator. A slip-clutch assembly allows the operator to accurately control power transferred from the engine to the drive wheel(s) of the marking tape applicator. One-way clutch bearings provide differential action to the drive wheels when negotiating turns by allowing the wheel on the outside of the turning radius to rotate at a faster rate than the wheel on the inside of the turn. The differential action provided by the one-way clutch bearings also prevents the wheels from dragging on the pavement surface and permit the operator to manually push the marking tape applicator faster than it is being driven by the engine.

Abstract: A concrete saw is provided which utilizes a transmission having both forward and reverse, high and low speed ranges separated by a neutral state. The transmission includes a neutral start switch which prevents the engine from being started, while the transmission is in gear. An automatic parking brake assembly is mounted to the frame proximate the drive wheel. The brake assembly fixedly engages the drive wheel when the ignition switch is turned to the off position, when the battery is disengaged or when the battery is dead. The brake assembly also immobilizes the drive wheel whenever the transmission is shifted to the neutral state regardless of the position of the ignition switch. The system is provided with an override switch to bypass the automatic application of the brake assembly when the transmission is placed in neutral to facilitate winching or otherwise rolling the saw without engine power. Normally, the brake assembly disengages when the transmission is shifted from neutral into gear.

Abstract: Improved paint striper control, speed and quality is achieved by articulating a motor driven push tractor unit to a steerable walk behind paint striping unit. In a preferred embodiment, a two wheeled rear push tractor unit supporting a drive motor and driver's seat is coupled through a quick release ball-socket pivot joint behind a three wheeled handlebar steered push-to-paint manual striping unit. The articulation joint with help of a hydrostatic trans-axle transmission in the tractor unit produces a sharp turning eighty degree radius. Also the transmission unit functions to drive the assembly in straight lines. The user controls steering to deviate from a straight line at the handlebar grips in substantially the same manner as if walking behind the paint striper. Thus the user rides quickly along the striping path with a good view at the paint spray jets to monitor performance and achieve higher output volume and quality.

Abstract: The disclosure explains machines to provide for forming depression using multiple cutting tools. The cutting tools may operate in a simultaneous cycling mode, where the cutting tools form depressions at the same time, or in an alternating cycling mode where the cutting tools form depressions at unique periods during operation. The individual cutting tools may make plunge cuts, near plunge cuts, or mill through cuts. Regulation of the cutting cycles of each cutting tool may be controlled using a direct transfer, as exampled by cam wheels, or using an indirect transfer, as exampled by electronic measurement of travel of the milling machine. A determination of the proper spacing between adjacent cutting tools is dependant upon the type of cycling mode, the total cutting tool count and a measurement of the separation spacing between adjacent depressions.

Abstract: An apparatus for cutting highway rumble strips comprises a vehicle that includes a supporting framework, e.g., a framework formed from steel channels welded together and having four ground-engaging wheels, one mounted at each corner of the framework for supporting the vehicle and allowing it to move freely under its own power or to be towed down the highway. A cutter, e.g., a cutting head or cutting wheel with carbide steel cutting teeth, is supported on the framework for producing a series of spaced apart transverse cuts in the pavement as the vehicle travels, usually at a uniform speed along the shoulder of the highway. The cutter can be a toothed wheel that is rotated on an axis at its center by a drive motor, engine, or other prime mover.

Abstract: A method of installing a level ball bearing floor. The method includes applying a self-leveling coating over a base. A plurality of support plates are mounted on the self-leveling coating. A plurality of ball bearing units are then mounted on each support plate. The ball bearing floor maintains each of the ball bearing units of within 1/16 of an inch of the same height.