A tooling for removing a bit holder from a base block of a milling drum. The tooling includes a bracket, a pry tool, and an actuation member. The bracket is configured to be engaged with the bit holder and defines an impact surface to receive one or more impacts. The pry tool has a portion configured to be positioned between the bit holder and the base block. The actuation member is movably engaged with the bracket and is actuatable to contact and exert a pushing action on the pry tool to move and advance the portion of the pry tool into an interface defined between the bit holder and the base block. When the impact surface receives the impacts, impact components are correspondingly transferred to the pry tool to supplement the pushing action for a removal of the bit holder from the base block.

A method for forming and applying retroreflective pavement markings comprising the steps of a) spraying the area with a hot epoxy binder, b) depositing particles of a microcrystalline ceramic element having a high refractive index onto the fresh epoxy binder, c) depositing relatively large spherical glass beads onto the fresh epoxy binder, and d) depositing relatively small spherical glass beads onto the fresh epoxy binder. The small beads provide high reflectivity in daytime and at night on dry pavement. The large beads provide superior reflectivity at night on damp pavement. The ceramic element particles provide high reflectivity when wet and during heavy rain. Where the pavement is subject to snowplowing, the marking may be inlaid in a recessed area in the pavement, the recess being about 100 mils deep, and the wet epoxy layer being about 20 mils thick.

There is disclosed a mobile pavement surface scanning system and method. In an embodiment, the system comprises one or more light sources mounted on the platform for illuminating a pavement surface, one or more stereoscopic image capturing devices mounted on the platform that capture sequential images of the illuminated pavement surface and a movement sensor that encodes movement of the platform and provides a synchronization signal for time or distance synchronized image capture. One or more processors synchronize the images captured by the image capturing devices and stamps the images with one or more of time and distance data, calculate 3D elevation for each point on the pavement surface using stereoscopic principles, and assesses the quality of the pavement surface to determine the level of pavement surface deterioration.

An automotive construction machine, in particular a slipform paver or a road milling machine, has at least one front running gear and one rear running gear in the working direction. As the construction machine advances, the lifting systems of the front running gear are extended or retracted such that the machine frame remains in a predetermined orientation to the surface of the ground in the longitudinal direction. Irregularities in the ground surface are detected as the construction machine advances, and the position of the front lifting systems, predetermined by the control or regulating unit, is monitored to keep the machine frame in a predetermined orientation to the ground surface. As the construction machine advances, the control of the rear lifting systems is engaged with a time delay subject to the control of the front lifting systems. Consequently, the working system of the construction machine, in particular the concrete mold or milling drum, is adjusted to the correct height with respect to the ground surface, so that the working system does not copy the course of the ground.

A leg assembly includes a guide tube, a power drive coupled to a flange of the guide tube, a steering ring coupled to the power drive, a tube weldment coupled to the steering ring, and a hydraulic actuator coupled within the guide tube and within the tube weldment. The power drive includes a slew drive or a hydraulic cylinder steering assembly. The tube weldment is translated through the power drive by the actuator. The steering ring includes one or more pistons by which relative rotational movements may be imparted to the tube weldment by a socketing action. The steering ring is rotated by the power drive. Thus, the guide tube may be rotated relative to the tube weldment.

A control system is disclosed for a mobile machine configured to transfer material into a receptacle. The control system may include a first sensor configured to generate a first signal indicative of one of a speed of the mobile machine and a distance between the mobile machine and the receptacle, a display system having at least one display device configured to show information relating to one or more of the mobile machine and the receptacle to an operator of the receptacle, and a controller electronically connected to the first sensor and the display system. The controller may be configured to determine a relative speed of the receptacle with respect to the mobile machine based at least in part on the first signal and generate on the at least one display device a first visual indicator indicative of the relative speed of the receptacle with respect to the mobile machine.

A computer control system in a paving machine determines a location, long slope (pitch), cross-slope (roll), and elevation (with respect to reference surface) of the machine with reference to a plurality of sensors. The long slope, cross slope and elevation are compared to values from a design surface (horizontal alignment, vertical profile, and cross sections) using the location of the machine to query the design data. Deviations from measured orientation and elevation to the design (desired values) are determined for each elevation cylinder of the paving machine based on the sensor data using constrained geometric control algorithms that predict future deviations. Corrections are applied to bring the actual location, long slope, cross-slope and elevation to within acceptable tolerances of the desired values. Sensors are associated with specific legs, with some sensors associated with more than one leg, such that sensor values may be averaged to reduce error.

A milling machine includes a frame, a rotor coupled to the frame and vertically adjustable, a chamber coupled to the frame and at least partially surrounding the rotor, a speed sensor configured to measure a speed of the machine, a height sensor configured to measure a height of the rotor, a ground characteristic sensor configured to measure a ground characteristic, and a controller. The controller is configured to receive the speed of the machine from the speed sensor, receive the height of the rotor from the height sensor, receive the ground characteristic from the ground characteristic sensor, determine a target speed for the machine, determine a target height for the rotor, adjust the speed of the machine to the target speed, and adjust the height of the rotor to the target height.

Device for realizing surfacing, in general, realizing surfaces that differ in nature, and more especially for realizing concrete pavements. In particular, it concerns a machine for realizing concrete roads, more especially a type of machine where work can be done without lateral formwork, in such way that after the machine has passed, the road is completely finished and that one only has to wait for the concrete to set and possibly seal the expansion joints before commissioning the road.

A work machine can include a frame defining a front end and a rear end of the work machine. The frame can have a frame axis and a rotating drum extending in a direction perpendicular through the frame axis. The work machine can include a transportation device to move the work machine over a ground surface. The work machine can include a lifting column extending between the frame and the transportation device and side plates arranged on opposite sides of the work machine. The work machine can include at least one sensor, which can detect a feature of the ground surface.