An interchangeable unit for material-removing work on a subsoil starting from ground surface includes a housing, a removal tool, a drive belt pulley and a transmission gear unit which transmits motion from the drive belt pulley to the removal tool.

The present invention relates to an interchangeable unit (28) for material-removing work on a subsoil (U) starting from ground surface (A), the interchangeable unit (28) being designed for operational physical and functional coupling to a machine frame (12) of a road construction machine (10), the interchangeable unit (28) comprising: a housing (30), a removal tool (32), which is mounted on the housing (30) so as to be rotatable about a working axis (R) and of which a circumferential section protrudes from a working opening (30c), a drive belt pulley (62), which is rotatably mounted on the housing (30) and is able to be coupled to a drive belt (58), a transmission gear unit (76), which transmits torque and rotary motion from the drive belt pulley (62) to the removal tool (32) by reversing the direction of rotation, at least the axis of rotation (P62) of the drive belt pulley (62) running at a distance from the working axis (R).
According to the invention, a working shaft assemblage (74) penetrates a housing wall (30d) of the housing (30), the working shaft assemblage (74) connecting the removal tool (32) with a working gear component (70) situated on the side of the housing wall (30d) facing away from the removal tool (32) for equidirectional joint rotation, the transmission gear unit (76) being situated between the drive belt pulley (62) and the working gear component (70).

An adjustable width mold apparatus for a slipform paver includes a center portion and left and right sideform assemblies. The center portion has left and right lateral ends. Left and right adjustable width support assemblies are connected between the sideform assemblies and the center portion. One or more spacers may be received between each sideform assembly and the center portion to adjust the width of the mold apparatus. The spacers may be hung on a plurality of hanger rods. Each of the hanger rods may have a hydraulic nut on one end thereof for clamping the spacers between the sideform assembly and the center portion.

The present invention relates to a inventive spike roller and use of a spike roller to create a textured surface and/or lay down exposed fibers and/or incorporate polymer below an exposed surface of a concrete.

The present disclosure relates to a concrete finishing device. More specifically, the present disclosure describes concrete texturing devices for use on an uncured concrete slab. The concrete texturing devices have a device body, one or more drive systems, at least one articulating arm, and at least one texturing structure. Also disclosed are methods of use.

The present disclosure relates to a concrete finishing device. More specifically, the present disclosure describes concrete texturing devices for use on an uncured concrete slab. The concrete texturing devices have a device body, one or more drive systems, at least one articulating arm, and at least one texturing structure. Also disclosed are methods of use.

A seamless stamp device for impressing configuration into deformable materials includes a recess member having a substantially planar top wall and an undulating bottom wall with a plurality of ridges integrally joined to the bottom wall, the ridges defining a preselected pattern upon the bottom wall. The seamless stamp device further includes a protrusion member having a substantially planar top wall and an undulating bottom wall with a plurality of ridges integrally joined to the bottom wall, the ridges defining a preselected pattern upon the bottom wall. The recess and protrusion members are detachably engaged such that the undulating bottom walls and ridges of the engaged members provide a continuous, seamless design or pattern in the surface of a deformable material when the recess and protrusion members are forcibly inserted into the deformable material, then vertically elevated and vertically lowered and repositioned upon a different portion of the surface of the deformable material. The method repeating until the entire surface of the deformable material has been configured with the designs of the bottom walls and ridges of the recess and protrusion members.

A seamless stamp device for impressing configuration into deformable materials includes a recess member having a substantially planar top wall and an undulating bottom wall with a plurality of ridges integrally joined to the bottom wall, the ridges defining a preselected pattern upon the bottom wall. The seamless stamp device further includes a protrusion member having a substantially planar top wall and an undulating bottom wall with a plurality of ridges integrally joined to the bottom wall, the ridges defining a preselected pattern upon the bottom wall. The recess and protrusion members are detachably engaged such that the undulating bottom walls and ridges of the engaged members provide a continuous, seamless design or pattern in the surface of a deformable material when the recess and protrusion members are forcibly inserted into the deformable material, then vertically elevated and vertically lowered and repositioned upon a different portion of the surface of the deformable material. The method repeating until the entire surface of the deformable material has been configured with the designs of the bottom walls and ridges of the recess and protrusion members.

Methods and apparatus are disclosed for stamping concrete. In one aspect, a stamp includes a top surface having a three dimensional pattern similar to the three dimensional pattern on its bottom surface. When a portion of a first stamp overlaps a portion of a second stamp, at least a portion of the three dimensional pattern on the bottom surface of the first stamp engages with at least a portion of the three dimensional pattern on the top surface of the second. The engagement between the three dimensional designs or patterns locks or registers the first stamp to the second stamp. In some aspects, a handle of the first stamp engages with a slot in the second stamp. In some aspects, a magnet of the first stamp is attracted to a magnet of the second stamp.

Methods and apparatus are disclosed for stamping concrete. In one aspect, a stamp includes a top surface having a three dimensional pattern similar to the three dimensional pattern on its bottom surface. When a portion of a first stamp overlaps a portion of a second stamp, at least a portion of the three dimensional pattern on the bottom surface of the first stamp engages with at least a portion of the three dimensional pattern on the top surface of the second. The engagement between the three dimensional designs or patterns locks or registers the first stamp to the second stamp. In some aspects, a handle of the first stamp engages with a slot in the second stamp. In some aspects, a magnet of the first stamp is attracted to a magnet of the second stamp.