Abstract: A process for recycling asphalt pavement by serially heating and milling the asphalt until the desired depth of asphalt has been removed and then mixing the heated asphalt with additives, if needed, for reapplication to the pavement.

Abstract: An interlocking slab element for covering the ground or the like which has a main hexagonal section and at least one tail section integral therewith which are oriented substantially in one plane. The main section has a first pair of adjoining peripheral edges or faces and a second pair of adjoining minor peripheral edges or faces with the first and second pairs of minor peripheral edges or faces being oppositely disposed in spaced-apart relationship. The main section further has a pair of spaced-apart parallel major peripheral edges or faces interconnecting the first and second pairs of minor peripheral faces. The tail section has four minor peripheral faces or edges, with one of the four minor faces of the tail section being substantially coextensive in size and shape and spatially coincident with one of the minor faces of the main section.

Abstract: A grate riser for use with catch basins and the like comprising vertically open rectangular frames with at least two opposing frame sections carrying inwardly projecting horizontal grate support flanges and cooperating grates with opposite end portions of parallel spaced apart elongated horizontal grate elements adapted to rest on the flanges. The grate riser has a vertically open generally rectangular frame coextensive with a catch basin frame with opposing vertical side and end wall sections of a height substantially equal to the depth of new road pavement. The frame rests atop a catch basin frame with its top edge substantially level with the top surface of new pavement. At least two horizontally spaced upper riser elements depend from each of two opposing grate riser frame sections to support a pair of elevated horizontal grate support flanges. The grate support flanges have lower riser elements depending therefrom in the form of flanges which rest on the grate support flanges of the catch basin.

Abstract: An ice aggregate road structure and apparatus for constructing. The road structure comprises crushed ice aggregate from which fines smaller than 0.1 inch have been removed which aggregate is placed in the desired shape and then bonded by a deeply penetrating application of water which bonds aggregate particles at their points of contact. The apparatus includes a distribution box for receiving ice aggregate and distributing it over a road section to be paved coupled with a bond water distributing means for quickly applying bond water after proper distribution and shaping of the aggregate. The distribution and water spray elements are carried on rails which are in turn supported from a pair of spaced apart carriages containing water heating and pumping means and appropriate power sources for operating the equipment. The carriages are spaced apart to allow trucks to deliver aggregate.

Abstract: A protective traffic barrier designed to divert motor vehicle traffic away from an object or roadway is disclosed. A base with wedge-shaped projections extending vertically from the base impedes the movement of a motor vehicle across the barrier. The shape of the base may be designed to fulfill a particular function including an opening to allow the barrier to fit over an object to be protected. A resilient, preferably plastic, cover encapsulating the base protects people or animals from contact injury with the wedge-shaped projections while allowing the projections to penetrate a vehicle tire. The cover may be coated with various materials to enhance visibility of the barrier by motor vehicle operators.

Abstract: A removable and adjustable ramp for aiding an animal or human into a small boat from water in which the boat is floating comprising an inclined planar member removably attached to the vertical wall portion of a small boat and extending into the water with an integrally associated platform wherein said platform is disposed in a substantially horizontal position when said inclined planar member is touched by a forward portion of the animal or human to accommodate a rearward portion of the animal or human to ease access of the animal or human onto the boat without external aid. The ramp is adjustable to accommodate various sizes and weights of animals and humans. The ramp is lightweight, portable, and may include additional access aids such as indentations and low slip surfaces on the ramp.

Abstract: For cooling the bits (1) of a cutting machine, nozzles (22) for cooling water are provided. The bit (1) is supported for axial shifting movement and can when being loaded exert a stroke for the path (a) in direction of the arrow (4). A coupling member (9) transmits the movement of the bit (1) to a shutoff valve (7) blocking the supply of water in unloaded condition of the bit and giving free the supply of water whenever a predetermined cutting pressure is exceeded. The restoring force of the bit (1) to return the same in its starting position in unloaded condition is provided by a spring (5) and by the water pressure and is rated in correspondence with the minimum value of the cutting pressure. The restoring spring (5) is supported against an adjustable abutment (30, 31) which can be fixed in position during operation so that the restoring force can be adjusted.

Abstract: The present invention aims at providing a method and a device therefor which can effectively as well as accurately bury a cable under marine beds not only when a cable is newly laid and buried but also when a cable has to be reburied. The method and the device according to the present invention are characterized in that a burying device is guided to approach the cable by using a travelling member provided on said burying device, a travelling control mechanism thereof being controlled by a receiving output from a transmitter which is mounted on the cable in advance by a receiver provided on the burying device, that the cable is caught and held by a cable engaging member of said burying device while the burying device is detecting the buried cable track and travelling therealong, and that at the same time an excavation member of said burying device digs and forms a groove while the burying device guides and buries the cable within the excavated groove.

Abstract: Described is a raised pavement marker comprised of (referring to FIG. 1): a flexible foam body 2, a reflective film 4, and a pressure-sensitive adhesive 3. Raised portion 5 provides back support for the reflective film. This pavement marker has significant advantages over existing markers in terms of cost and ease of placement on the road surface. A lane delineation tape is also disclosed.

Abstract: An expansion joint system for functioning as an expansion joint between concrete sections of a roadway surface or the like. Such roadway surfaces are normally provided with a slot for accommodating thermal expansion and contraction of the concrete and a boxed-out zone for receiving the expansion joint system. The expansion joint system includes a plate and sealants. The plate is provided with a lower or interior resilient winged section inserted into the slot with wings extending exteriorly to frictionally engage the surfaces of the slot and thereby effect centering and preclude the raising of the plate from the slot. The plate is provided with an upper or exterior section including support surface for resting on the boxed-out surface of the cement segments to thereby preclude the plate from dropping into the slot. A stem couples the upper and lower sections of the plate. A sealant then covers the horizontal support and fills in the boxed-out zone of the concrete.

Abstract: A light weight pavement module is described which comprises a base grating, an impervious intermediate layer, such as a reinforced plastic or fiberglass sheet applied over the base grating, and a concrete top layer wear surface applied over the intermediate layer. The intermediate layer prevents the concrete top layer from penetrating through the base grating. The grating has shear connectors which pierce the intermediate layer and project into the top layer wear surface in order to form an integral pavement module. The pavement module may be formed without an intermediate layer if the module is otherwise constructed so that the top layer wear surface does not penetrate and fill the interstices of the base grating.

Abstract: A light weight pavement module is described which comprises a base grating, an impervious intermediate layer, such as a reinforced plastic or fiberglass sheet applied over the base grating, and a concrete top layer wear surface applied over the intermediate layer. The intermediate layer prevents the concrete top layer from penetrating through the base grating. The grating has studs attached to it which pierce the intermediate layer and project into the top layer wear surface in order to form an integral pavement module.

Abstract: A lightweight portable wheel chair ramp comprising a pair of ramps detachably secured to one another in a compact, portable configuration. Each ramp is telescopically extensible with oppositely disposed non-slip surface engaging flanges and can be adjustably locked to the length required. A pair of alignment and spacer brackets secure the ramps together in spaced parallel relation during operation. The ramps can be detached from one another, collapsed and secured together for ease of transport.

Abstract: An improved counterbalancing mechanism for the ramp of a dockboard. The ramp is hinged at its rear edge to the frame of the dockboard and is adapted to be pivoted between a generally downwardly inclined position and an upward inclined position by a counterbalancing spring assembly. The counterbalancing spring assembly includes a first link pivotally connected to the underside of the ramp and a second link pivotally connected to the frame. The two links are connected together and are disposed in an acute angle relationship when the ramp is in the downwardly inclined position. One end of an extension spring is connected to the frame, while the opposite end of the spring is connected to one of the links. When the ramp is in the maximum downwardly inclined position, the spring is in a fully tensioned condition and when the holddown mechanism of the dockboard is released, the force of the spring will move the links toward an in-line position.

Abstract: One concrete slab is laid adjacent to a previously laid slab with a slip forming machine while the concrete mix of the previously laid slab is still plastic. The slip forming machine includes a tractor of the type used with conventional slip-form mules, and in addition a slip-form mule that has the capability of laying a slab of plastic concrete mix against a previously laid slab of mix that is still plastic. The mule has a frame that is attached to the tractor, and the frame carries a hopper and slip form which are united into a single unit, with the hopper opening into the front end of the slip form. The unitized hopper and slip form pivot on the frame about a vertical axis that extends through the front of the frame. The rear end of the slip form moves on a transverse slideway and a hydraulic cylinder is connected between the frame and slip form to urge the side of the slip form snugly against the edge of the previously laid slab as concrete mix extrudes from the slip form to provide the adjacent slab.

Abstract: A transverse concrete pavement joint cell including a pair of plastic walls abutting the edges of the concrete joints. A seamless drainage gutter extends longitudinally between said plastic walls to the edges of the pavement. Blocks of compressible elastomers between said plastic walls absorb expansion of the concrete. The cell includes a base and stabilizing ties secured to a conventional dowel bar assembly.

Abstract: An elongated flexible tube of resilient plastics material includes an upper end portion and a lower end portion and is capable of being repetitively bent through an angle of ninety degrees and of returning to an upright straight position with the aid of a flexible erecting member within the tube. The upper end portion may be thermally flattened for receiving a panel of reflective material or the reflective material may wrap around the tube. In one embodiment, the lower end portion of the tube projects into a hole within the ground and carries outwardly projecting spring fingers which positively lock into the ground. In another embodiment, a molded plastic base member releasably retains the lower end portion of the tube and is adapted to be cemented to a roadway surface. Also disclosed is a tool for quickly forming a series of holes within the ground to receive the lower end portions of the tubes.

Abstract: A bridge module comprises two longitudinal main girder structures and a central deck having a deck surface, said main girder structures being foldably connected are along each side of said central deck and being foldable between an operative position in which said main girder structures offer extensions of said deck surface on either side of said central deck for use and a closed position in which said main girder structures are folded beneath said deck.

Abstract: Flexible, raised pavement markers having improved shapes which take advantage of relief cuts and ribs to increase the durability and retention of reflectivity. One embodiment of such a marker comprises: a flexible body made of sponge rubber and having a raised surface connected to a base portion through a connecting portion, a reflective film attached to the raised portion, and a pressure-sensitive adhesive on the base. Relief cuts along the back of the connecting portion provide a bending or folding action whereby the reflective film is made to lie flat when a tire passes over the marker, thus protecting the reflective sheeting from scuffing.

Abstract: A bridge module is preassembled from girder sections the type disclosed in Pat. No. GB 1209747, and integrated by stabilizing means so as to provide a crane-assisted building method which is less labor intensive and less time consuming than known manual methods.