Abstract: Wheeled cart for holding components of temporary visible warning assemblies and method of loading. The cart comprises a holding support having adjacent spaces positioned substantially along its length and a holding base having upwardly extending prongs positioned substantially across its length. Warning stands are stored in the cart by connecting a lower end of a stand with a prong and placing the upper end of the stand in the space of the holding support. Surface engaging supports for retaining the cart in an upright position extend from each side wall of the cart frame and are positioned directly below a length of the holding base. A rotatable cover is moveable from an open position for loading stands to a closed position wherein the upper ends of the stands in the cart are retrained from forward or upward movement by the cover.

Abstract: A collapsible safety rail system for providing a portable or permanent protective barrier to provide for fall prevention from elevated or other work areas. Lockable pivot assemblies are located between heavy bases and the end posts of collapsible safety rail assemblies. Removable detent pins are utilized to lock the pivot assemblies to maintain the erected position of the collapsible safety rail assemblies in protective vertical orientation or are removed to allow maneuvering of the collapsible safety rail assemblies to a minimum viewable profile position when not required for personnel protection.

Abstract: A collapsible safety rail system for providing a portable or permanent protective barrier to provide for fall prevention from elevated or other work areas. Lockable pivot assemblies are located between heavy bases and the end posts of collapsible safety rail assemblies. Removable detent pins are utilized to lock the pivot assemblies to maintain the erected position of the collapsible safety rail assemblies in protective vertical orientation or are removed to allow maneuvering of the collapsible safety rail assemblies to a minimum viewable profile position when not required for personnel protection.

Abstract: An improved concrete cutter has a longitudinally-extending primary boom and one or more saw carriage sub-assemblies that move along the length of the boom. “Wing-like” boom extensions are hingedly secured at each end of the primary boom. The boom extensions can be easily positioned at each end of the primary boom to extend the cutting width of the concrete cutter and without requiring removal of the boom extensions from the concrete cutter. The saw carriage sub-assemblies are independently movable along the boom extensions. Carriage spacing is variably-adjustable along the boom such that each saw carriage can move toward or away from the other saw carriage. Each saw carriage sub-assembly is height-variable and is self-adjusting to contours in the profile of the concrete surface being cut.

Abstract: An improved concrete cutter has a longitudinally-extending primary boom and one or more saw carriage sub-assemblies that move along the length of the boom. “Wing-like” boom extensions are hingedly secured at each end of the primary boom. The boom extensions can be easily positioned at each end of the primary boom to extend the cutting width of the concrete cutter and without requiring removal of the boom extensions from the concrete cutter. The saw carriage sub-assemblies are independently movable along the boom extensions. Carriage spacing is variably-adjustable along the boom such that each saw carriage can move toward or away from the other saw carriage. Each saw carriage sub-assembly is height-variable and is self-adjusting to contours in the profile of the concrete surface being cut.

Abstract: A concrete saw (10) includes a cutting assembly having a high compression diesel motor (38) mounted on a carriage (40) in turn slideably mounted in a frame (22) in turn pivotally mounted to parallel rails (14) of a chassis (12) moveably supported on the concrete surface by wheels (18, 20). Concrete slurry hardened on two pairs of UHMW slides (30, 44) provided between the sliding surfaces of the carriage (40) and the frame (22) will break away and fall from the slides (30, 44) when the belt tension is adjusted. A guard (58) prevents entry of concrete slurry to the belt drive and includes a housing (66) having a U-shaped wall (68) which closely conforms to the bottom periphery of the sheave (36) of the belt drive.

Abstract: A melter and applicator (10) is shown for applying liquefied paving material to damaged pavement. The applicator (10) reduces the problems which occur due to the unintentional solidification of the paving material within the hose (74) of either the heated or unheated type. A cabinet (44) is provided which is selectively able to maintain the temperature of the unheated hose (74) during periods of non-use. In addition, a wand access port (100) is provided which allows either type of hose (74) to be run continuously, directing material back to a supply bin (26). In addition, a chimney (40) is provided which vents the by-products of combustion generated while melting the paving material. This chimney, (40) is fluidly coupled to the bin (26) which contains the paving material so that noxious fumes produced during the melting are drawn off.

Abstract: A router machine for cutting a groove in pavement and the like for repairing cracks includes a pair of frame members mounting a shroud therebetween. A cutter head drive shaft is mounted by the frame members with axially spaced bushings keyed thereto within the shroud. Disks are bolted to the bushings. Circumferentially spaced cutter members are mounted to the disks, and include pins axially removably extended through apertures. Star bits and spacers are mounted on the pins. Retainers are pivotally mounted to the disks to selectively permit axial removable of the pins from the disks. A U-shaped mounting axle is pivoted to the frame members forwardly of the shroud for mounting ground engaging wheels. An operator guide handle is pivotally mounted to a console and operatively connected to brake members mounted by a brake axle to brakingly engage the ground engaging wheels when the handle cross bar is pushed downwardly.

Abstract: A riding saw apparatus (20) has hydrostatic and hydraulic controls (26, 30, 31, 32) which are movable to various positions for different sawing operations. In addition, saw blades (72) mounted on a cutting assembly (24, 25) are movable to different positions at different angles for performing a number of sawing operations including sawing joints, making angled cuts, and following random cracks or curves. In addition, a timing mechanism (82) may be added so that the saw (20) may utilized for sawing recesses (110) in the pavement. The timing - mechanism (82) uses a cam (84) with a cam follower (86) controlling the depth of the cut of the blades (72). The saw also utilizes a mounting bracket (80) for mounting front wheels (38) or the cutting assemblies (24, 25) in different positions for the various sawing operations.

Abstract: A cooling system for a wheeled saw for widening cracks in an asphalt or concrete surface is disclosed. The cooling system includes a compressor and a water reservoir which provide pressurized air and water to one or more mist forming nozzles or fluid directing blocks. The mist is directed unto the cutting blade to keep it cool. After enlarging a crack, foreign materials are blown from the crack allowing it to be immediately sealed.