Abstract: A very maneuverable soil compacting roller for use in a confined area comprises a frame, a compacting drum freely rotatable about a horizontal axis near one end of the frame, and a pair of coaxial wheels near the other end of the frame, for propulsion and steering. The wheels are maintained in coaxial spaced apart relation by axle means with which they are drivingly connected, and the axle means is confined to rotation relative to an axle housing between the wheels. A drive motor is secured to the axle housing. The unit comprising axle housing and drive motor has a connection with a steering bracket which rotates relative to the frame about a vertical steering axis, and said connection provides for swinging of said unit about an axis which is mutually perpendicular to the wheel axis and the steering axis so that the wheels can move up and down to accommodate terrain irregularities.

Abstract: An asphalt sealing machine for applying a sealant coating to asphalt pavement either alone, or in combination with fine particulate matter, such as sand. The machine includes a body supported on three wheels with the front wheel being a steerable driven wheel. The body includes a storage tank for the liquid coating material. Support beams are pivotally connected to the rear of the body and extend rearwardly to support squeegees, a paddle wheel, and sand dispensing device. The sand dispensing device is driven by one of the rear wheels and is provided with a clutch so that the liquid asphalt coating material may be dispensed alone or in combination with the sand.

Abstract: A vibratory compacting roller adapted to be coupled to a prime mover and equipped with hydrostatic drive and vibrator, both drivingly connected to a hydraulic power generator located on said prime mover, is provided with recessed tamping elements distributed in parallel adjacent rows around the periphery of the roller cylinder face with a peripheral offset between adjacent rows. The tamping elements are of trapezoidal design with a semi-circular recess extending centrally from the base to the short side, said recess rendering a vibrational compacting roller with tamping elements equal in weight to a plain vibratory compacting roller of the same over-all diameter.

Abstract: A method and system for the removal and replacement of bridges, for example, steel single-span railway bridges, starts with erecting vertical columns on the existing piers or abutments of the bridge. Cross-beam means are secured to the columns, perpendicular to the length of the bridge. A plurality of jack assemblies are positioned on each cross-beam means, the jacks each acting on a high-strength rod secured to the section of the bridge to be removed. The bridge section is cut away, lifted by the jack assemblies, and then the lifted bridge section is shifted sidewise on the cross-beam means to position it over a parallel track on the intact section of the bridge. The jacks then lower the removed bridge section onto a removal means, such as a railroad car, on the intact section of the bridge. The new section of bridge is then delivered and placed in position in a similar manner.

Abstract: An apparatus capable of self power or being towed and specifically designed to distribute and/or apply cementitious material, and in particular, pervious concrete, over a given surface area such as a roadway or the like. A support frame has mounted thereon a distributor casing specifically configured to direct cementitious material in layer form along a transverse length relative to the direction of travel of the support frame. A delivery hopper moves transversely on the frame and along the length of the casing and serves to continuously feed cementitious material to the casing. Material such as pervious concrete is continuously discharged from the distributor casing by a percussive action imparted to it by forward motion of the frame. A blade element and compacting edge is adjustably positioned above the surface being treated and is attached to the casing to mechanically move therewith so as to compact the cementitious material as it is extruded from the casing upon mechanical actuation thereof.

Abstract: A manhole cover support ring adapted to be placed within an existing manhole frame for raising the height of a manhole cover. A circular ring is formed by a generally vertically extending flange having an annular bar welded on its lower end which provides an inwardly extending manhole cover support ledge. The flange and bar are split at a common point on their peripheries. An expansion mechanism is pivotally mounted on and extends between the spaced ends of the bar formed by the split in the ring. The expansion mechanism includes a pair of eyebolts pivotally mounted on the spaced ends of the annular bar. The eyebolts each have a threaded shaft which is engaged in a respective threaded end of a tubular member. One of the threaded shafts has a right-hand thread and the other shaft is formed with a left-hand thread, whereby rotation of the tubular member in one direction will contract the ring sufficiently to place it within the manhole frame opening.

Abstract: A marker for ground areas has a hollow cylindrical rigid body with an open end and a closed end, the open end constituting the bottom and the closed end constituting the top when the marker is embedded in the ground. Such rigid body is forced under pressure into the ground by pressing it into the ground until the top wall is substantially level with the ground surface. The top wall is treated to present a prominent indicating surface, and, in the instance of the marker being used for golf courses, the top wall is formed from a resilient, plastic or elastomeric material that would be comparable to the natural ground surface insofar as ball reaction thereto in striking the same is concerned.

Abstract: Apparatus for use in combination with a road working machine for mixing a liquid plasticizing agent within a layer of scarified road surface materal is disclosed. The apparatus includes an array of discs for lifting and turning the scarified road surface material and a nozzle supported in a position for spraying the liquid plasticizing agent upon the road surface material as it is lifted and turned by the discs. In a preferred embodiment, the discs are secured to a rotatable shaft which is mounted for angular movement through a plane lying transverse to the direction of travel so that the disc assembly may follow longitudinal undulations in the road surface.

Abstract: The tool consists of a pair of forming blades made of stainless steel held at a slight dihedral angle of 10.degree., with a gap between them wide enough to accommodate the surface of an expansion joint or drain. The blades are rigidly held by a cast aluminum bridge which arches over the gap. A pair of rubber wipers project slightly into the gap for clearing wet concrete from the surface of the expansion joint. The wipers are removably supported in aluminum wiper holders. Compressive spring force is generated by a steel rod extending between the blocks and through the arch of the bridge. Removal of a spacer on the steel rod permits sliding the wiper assembly aside sufficiently to release it from the tool to permit changing rubber wipers. A small amount of adjustment of the gap width to accommodate different width joints is permitted by means of movement of the blades in slotted openings in the bridge. Larger variations can be accommodated by substituting differently dimensioned blades.

Abstract: An arrangement for use on a vehicle, especially truck for transporting portable bridges, with the sections of a portable bridge being adapted to be arranged one above the other on support frames, and being adapted to be received on the support frames, by means of a bridge placing apparatus. The support frames are distributed over the effective length, behind the cab of the particular truck, and secured to the frame or the like thereof. The support frames are provided as independent components, releasably securable to the vehicle frame or to a loading platform, and the support frame immediately adjacent the cab is provided with a pivot drive arrangement for moving the sections of the portable bridge in the longitudinal direction of the vehicle.

Abstract: The traffic delineator assembly of the present invention is comprised of a elongated resiliently flexible delineator member, an anchor post, and a rigid pilot plate. The pilot plate is attached at the upper end of the anchor post and the lower end of the flexible delineator member is attached to the pilot plate with its lower edge lying adjacent the lower edge of the pilot plate so that when the anchor post and pilot plate are driven into the ground or road surface, the bottom end of the delineator member follows the bottom edge of the pilot plate into the surface.

Abstract: The hollow plastic barricade comprises a pair of identical, integral, hollow, hinged-together barricade frame members, each frame member having first and second hinge sections located at respective upper corners thereof. The first hinge section on one frame member cooperates with the second hinge section on the other frame member to form two hinges between the frame members. Each frame member comprises two hollow, spaced apart side frame portions with a leg at the bottom of each side portion, an upper hollow panel, a middle hollow panel and a lower hollow sandbag bar, all extending between the side frame portions. The middle panel is spaced beneath the upper panel and the hollow sandbag bar is spaced beneath the middle panel and is spaced above the bottom of the legs a distance which will permit the barricade to be placed over uneven terrain and still be supported by the legs. At least one of the panels is adapted to receive indicia thereon.

Abstract: A drive means is provided for driving into a roadway surface a traffic delineator assembly of the type which includes a channel shaped anchor post having a pair of outwardly extending flanges, the upper end of the channel being connected to a solid pilot plate.A lower surface of the drive means is positionable on the top of the anchor post and a pair of legs depend from the lower surface to straddle the channel and locate between the flanges of the anchor post and the pilot plate.An upper surface is provided as a striking surface for driving by manual means e.g., a sledgehammer. An adaptor is provided to link the upper end of the drive means with an impact type drive tool.

Abstract: A transportable floating bridge includes a bridge unit, a buoyant pontoon for supporting the bridge unit, a device carried by the pontoon for lifting and pivoting the bridge unit, a coupler for swingingly linking the bridge unit to a like pontoon supported bridge unit, and a coupling for rigidly coupling the bridge units together, whereby the floating bridge is easily formed from a plurality of bridge units regardless of whether the bridge units are located end-to-end or side-by-side after off-loading from their transport vehicle.

Abstract: A curb forming apparatus for traveling along a single horizontal longitudinal form adjacent a side edge of a pavement comprising, in combination, a frame with a plurality of aligned wheels for traveling upon said form, a curb forming chute mounted within said frame and being adapted to slide along said pavement, a hopper mounted to said frame and in communication with said chute, a skid plate attached to said frame and being adapted to slide upon said pavement, and a propulsion means to propel said apparatus along said form.

Abstract: A roadway marker, as for division of traffic lanes, has a flexible plastic dome-shaped top which extends above the roadway surface and is elastically deformable when run over by a snowplow blade. The marker is thus capable of use in all types of climate. A generally cylindrical skirt portion extends downwardly from the dome-shaped top and a ring-shaped flange is provided at the bottom of the skirt portion. The marker is placed in a bore formed in the roadway surface, such that the peripheral edge of the top is flush with the surface, and a grouting or similar material is applied to anchor and seal the marker within the bore, preferably such that air is sealed within the interior of the marker. The marker top may be made reflective by encapsulating an omni-directional reflective material just under the surface, in the molding process.

Abstract: A post, or picket, for vertically positioning within the soil for delineation of a section of highway which on vehicular impact is capable of bending in any direction and thereafter, when the vehicle has passed, rebounding to its original position. The body of the post is constituted of a hollow, tubular thermoplastic rubber body, trapezoidal in cross-section throughout its length; and its surface characteristics are such that the surface of the post can be readily colored with highway safety colors, e.g. white, yellow, etc. The post is mounted and retained within the soil via use of a rigid foot member which can be attached to the lower portion thereof, the lower position of the foot member being tapered and provided with sharp, serrated edges for cutting into the soil within which the post is to be erected.

Abstract: A vertically adjustable bridge for connection with ships, particularly ships with their own flaps such as car ferries and the like, comprises a ramp (6) including girders and the like and has an upper surface suitable as bedding for transport. At its land side the bridge is rotatably connected to a bearing arrangement (3, 4) so that the end (9) of the bridge which in use faces the ship can be turned to a desired height within a suitable adjustment area and temporarily locked in this height position by means of supporting legs (10). The bridge comprises one or more bridge units, several bridge units being mountable side by side adjacent one another, and each bridge unit has straight sides parallel to one another.

Abstract: The gearing for motor driven timing relays comprises an appropriate number of gear pairs which are in continuous engagement with each other and are rotatably mounted on a turntable which is driven by a setting shaft.

Abstract: An inflatable seal for use in an adjustable dockboard unit for sealing the unit against the flow of air therethrough into and/or out of the building in which the dockboard is being used.