Abstract: A truck having a road oil spreader is equipped with an apparatus for simultaneous application of oil and paving fabric to the road surface. The apparatus includes an assembly for engaging a roll of paving fabric comprising adjustable cone arms mounted on end plates that rotatably hold the core of the fabric roll. The fabric is drawn over a guide shaft and beneath a sectioned box beam having a series of longitudinally aligned brushes. The shaft and brushes are connected to the opposing end plates which are attached to a lateral support beam. The end plates and box beam include joint, drive and connection means that permit longitudinal, vertical and angular adjustment of the guide shaft and brushes. As oil is sprayed over the road surface, the fabric unrolls and becomes embedded in the oil by action of the brushes pushing the fabric into the oil-coated surface.

Abstract: A device for supporting a roll of material to a vehicle utilizing a first and second arm having a tensioning mechanism for tightening the roll of material. The device also includes a support bracket which adjustably holds the second arm in relation to the first arm. The support bracket and first arm are mounted to a selected position on the vehicle.

Abstract: A sliding shuttering machine for constructing continuously reinforced concrete roadways or pavements, comprising a main frame provided with transversely spaced ground engaging members allowing it to move over the ground, two lateral shutterings spaced apart transversely and extending longitudinally between the ground engaging members, a main extrusion plate extending transversely between the lateral shutterings and forming therewith a tunnel shaped sliding shuttering for extruding a mass of concrete and molding same into a thick pavement as the machine moves forward, adjustment means mounted between said main frame and said main extrusion plate for adjusting the vertical position thereof with respect to the ground and, consequently, the thickness of the concrete pavement to a desired value, an additional extrusion plate which extends transversely between the lateral shutterings and which is situated at a distance in front of said main extrusion plate and at a height with respect to the ground which is less th

Abstract: A construction machine is provided for use in the controlled distribution of formable concrete along a base surface of predetermined configuration. The machine includes a self-propelled main frame movable along the base surface. The main frame is provided with a front section and an elongated trailing section extending rearwardly therefrom. A first hopper is mounted forwardly of the frame front section for receiving a load of formable concrete. An elongated mule is mounted transversely on the frame trailing section. The mule is spaced a substantial distance rearwardly of the frame front section and includes an elongated second hopper having the underside thereof conforming substantially to the predetermined configuration of the base surface. A conveying means is carried on the main frame and effects controlled transfer of the formable concrete from the first hopper to opposite end portions of the second hopper. Vibrating means is carried on the mule.

Abstract: A movable form for lining irrigation ditches with concrete and simultaneously installing wire mesh into approximately the center of the wet concrete being poured.

Abstract: A dowel insertion apparatus and process is disclosed for the insertion of a plurality of joining dowels in freshly placed concrete slabs. Each dowel is grasped each by an individual inserter. Typically the inserter is mounted from a carrier and includes paired tangs having female dowel receiving ends of arcuate configuration at the lower portion thereof which female arcuate ends precisely mate to and receive the dowels. These tangs are connected at a depth above maximum concrete penetration by an electromagnet. A vibrator is attached to the inserter to liquefy the concrete. A dowel storage bin with distributing conveyor enables a row of inserters mounted to a carrier to distribute a plurality of dowels between two intended joints simultaneously, the dowels being evenly distributed the width of any contraction joint.

Abstract: An apparatus for facilitating the laying of paving fabric along a road bed, or the like, and comprising a core support member of an adjustable length for supporting a roll of the paving fabric on a vehicle whereby the web of fabric may be pulled from the supply roll for application to the surface of the road bed, a tension applying apparatus secured in the proximity of the fabric roll for receiving the web thereover in order to remove wrinkles from the web prior to the application of the web to the surface of the road bed, and a broom apparatus secured in the proximity of the location of the engagement of the web with the road bed for facilitating adherance of the web thereto, and a guard for the broom for precluding wrinkling of the fabric at the broom location.

Abstract: This invention relates to a device for driving and positioning, by vibration, dowels into concrete slabs during the construction of roads, on both sides of points between said slabs and perpendicularly to said joints, comprising a horizontal beam which is provided with vibrators and with maintaining elements suitable for gripping the dowels and which is carried by an independent frame, so as to be vertically movable by displacement means above a joint, in order to drive said dowels into a lower position in the still unhardened concrete of the slabs.

Abstract: Machines for spreading wet concrete pavement and/or laying reinforcing rods in the spread wet concrete embodying a main frame movable along a subgrade for pavement by power-driven endless tracks, one or two power-driven, transverse, rotatable augers for spreading wet concrete laterally between slip form side plates and ahead of a height-adjustable strike-off blade or plate on the frame, said side plates optionally including plates projecting forwardly of the machine from opposite sides thereof, and a cross plate extending transversely between respective forward portions of said plates to define a three-sided enclosure into which wet concrete to be spread by said machine may be dumped, and a plurality of height-adjustable, side-by-side, substantially horizontal tubes extending in the forward-to-rearward direction and along the lower side of said three-sided enclosure at a level at which reinforcing rods, which pass through said tubes, are to be placed in the spread wet concrete, the rearward, exit ends of said

Abstract: A machine for compacting and moulding concrete mix or other plastic materials comprises, in combination:(a) a body structure;(b) a tunnel shaped moulding member having a top and two sides and open at its bottom, the moulding member being attached to the body section;(c) an opening in the top of the moulding member adjacent to the body section;(d) a hopper adapted to carry concrete mix or other plastic materials, and feed the mix or materials to the opening, the hopper being attached to the body structure;(e) a substantially vertical ram plate having a shape which corresponds to the cross-sectional shape of the moulding member, the ram plate being located within the moulding member and being adapted to move reciprocally from a first position adjacent to the body structure to a second position wholly within the moulding member, without oscillation of the ram plate;(f) means to cause the reciprocal movement of the ram plate, the means being carried by the body structure, and(g) means supporting the body structur

Abstract: A reinforced asphalt layer, consisting of an asphalt-forming mixture of bitumen with mineral particles, in which is embedded a reinforcing network of elongated reinforcing elements which, where they intersect one another, have a connection to one another which at least to a certain degree fixes the cross-bond, in which the reinforcing elements at least locally have a cross-section of maximum linear dimension of the order of the particle size, and a shape such as to exhibit a change of direction longitudinally from location to location of their engagement of the surrounding material of the layer, the arrangement being such that in a finished, rolled asphalt layer the reinforcing elements have adjusted locally to the mineral particles by deformation, on the one hand, and the reinforcing network has largely retained its elasticity, on the other.

Abstract: Reinforced concrete is prepared by embedding within it a reinforcing element of at least one rigid plastic gridwork (which is optionally filler reinforced) of integrally molded struts.

Abstract: The present invention is directed to a device for introducing transversal reinforcement members in concrete bodies. In the casting of a concrete body, the casting machine and the concrete body move relative to each other during the casting operation. The present invention includes a storage member for reinforcement members with a device which feeds one reinforcement member at a time from the storage member to the surface of the concrete body. Pusher members are provided for positively introducing the reinforcement members into the concrete. The pusher members are connected to a knife which seals the opening through which the reinforcements members are introduced against upflow of concrete. Further, the present invention includes fin members to maintain the positioning of the reinforcement members in the concrete body.

Abstract: An apparatus for continuously forming and positioning a keyway joint is removably coupled to the front end of a slip-form paving machine. A supply roll of key strip stock is mounted on the apparatus and the strip is guided to successive arrangements of forming rollers for shaping the strip into a desired form. An automatic punch mechanism is provided for pucnhing holes in the strip liner and an automatic tie bar mechanism is also associated with the apparatus for automatically placing tie bars into these holes. Because it is difficult to assure that such tie bars are properly placed in the holes and since an improperly positioned tie bar can cause serious damage to the keyway and pavement already laid, a mechanism is provided for shutting down the paving machine if such tie bars are not properly placed.

Abstract: An improved barrier forming apparatus and method whereby a barrier is formed continuously over a surface, the barrier having continuous reinforcing rods extending the length of the barrier and having cage reinforced standard supports at predetermined intervals along the length of the barrier. An improved barrier forming assembly is disclosed comprising a concrete forming member having a form cavity extending therethrough; a concrete passing member having a concrete delivery opening for passing concrete or the like to the form cavity; and a positioning assembly comprising a support shaft and a door member pivotally supported at a forward end of the concrete forming member, the barrier being extrudable continuously via the form cavity from a rearward end of the concrete forming member.

Abstract: A machine for laying reinforcing mesh for concrete comprises a pair of spaced front wheels and a pair of power driven rear wheels. Several different forms of devices are provided for lifting the roll of reinforcing mesh and positioning it between the front wheels. From that position the wire is unrolled from the top of the roll and passes back under the rear wheels, thereby backbending the mesh as it is unrolled. In other embodiments not employing the front wheels, a pusher in front of the power driven wheels pushes the roll ahead of it along the ground as the latter wheels move along the mesh. In such embodiments hooks are provided on the pusher for engaging the roll in a manner such that, before unrolling, the roll may be lifted and transported to the desired location for unrolling. The safety hook is provided to the rear of the wheels to prevent the trailing edge of the non-backbended mesh from the roll from springing into the operator as the wheels move off that trailing edge.

Abstract: Apparatus for forming concrete articles in which augers convey "no-slump" concrete mix to a molding station with sufficient force to consolidate the mix. Friction is reduced at form surfaces of the molding station by high frequency vibration, greater than 22,000 vibrations per minute. Core-forming mandrels are disposed axially lateral of the line of flight of the augers. The concrete can be prestressed utilizing pre-tensioning or post-tensioning mechanism and provision is made for transverse reinforcement of the concrete.

Abstract: A method of producing a fiber reinforced concrete structure of desired thickness including the steps of extruding a sheet of concrete substantially free of fibers, distributing an effective amount of reinforcing fibers on the sheet, repeating the foregoing steps until the desired thickness is approached and before the concrete sheets have set up, and extruding a further sheet of substantially fiber-free concrete over the structure resulting from the foregoing steps to achieve the desired thickness. The amount of fiber distributed over each sheet may be varied to concentrate the fiber in the areas where the greatest stress concentration is expected. Also disclosed is an apparatus for performing the method.

Abstract: A means for towing and feeding a rail-mounted slip form paver has a self-propelled tug unit, a draw bar structure adapted to connect the unit and the paver in spaced relation, a hopper on the tug for receiving fluid concrete and including archimedes screws for delivering the fluid concrete to one end of a conveyor carried by the draw bar structure, a discharge chute at the other end of the conveyor for delivering fluid concrete in advance of the paver and a separating member between the paver and the tug unit operable to split and space continuous bundled steel rod reinforcement for incorporation in the concrete base laid by the paver.