Abstract: A corrosion protection system for bridge stay cables comprising the immersion of the bridge stay cables in a corrosive resistant liquid retained within a corresponding cable sheath to isolate the bridge stay cables from the surrounding atmosphere, a liquid flow control device corresponding to each cable sheath to selectively drain condensation or purge the corrosive resistant liquid from the respective cable sheaths and a liquid supply reservoir corresponding to each cable sheath to selectively feed the corrosive resistant liquid to and from the corresponding cable sheath in response to changes in the temperature in the surrounding atmosphere, the system having the unique capability of providing a verifiable corrosion protection system for the stay cables.

Abstract: A continuous concrete curb forming apparatus is formed by a vertical open end sleeve-like hopper having a channel-like member connected with its depending opening forming the shape of a conventional concrete curb as wet concrete poured in the hopper is released from the channel member.The hopper is connected with one end of a rectangular frame mounted on the forward end of a tractor. Hydraulically operated cylinders on the apparatus are connected with the tractor hydraulic system and a sensing means responsive to the position of a horizontal guide strand defining the position of the concrete curb to be extruded are connected with the hydraulic system through servo-mechanisms for guiding the tractor and maintaining the hopper and extruding channel in close spaced relation with the surface of a roadbed on which the concrete curb is to be extruded.

Abstract: A loading ramp bracket for use in attaching an upper end of a support member to an elevated support surface to facilitate use of the support member as a loading ramp for moving objects to and from the support surface, the loading ramp bracket including a first one-piece bracket member including a generally horizontal plate portion having a lower surface adapted to be positioned on the support surface and to be releaseably secured to the support surface, a downwardly inclined plate portion having a lower surface adapted to be positioned in face-to-face engagement with the upper surface of an end of the support member, the inclined portion being integrally joined to one end of the horizontal portion along a junction line, and the one piece bracket member having at least one aperture located adjacent the junction line, a second bracket member adapted to be releasably, hingedly joined to the first one-piece bracket member, the second bracket member including a lower plate portion having an upper surface adapted t

Abstract: Pavement line marking apparatus adapted to detect old line markings on a pavement surface and to repaint such markings or alternatively to paint new line markings to a desired pattern, the apparatus comprising a support beam (11) with a marking detection element (80) arranged at one end such that any old line markings are detectable thereby, upon movement of the detection element 80 over the desired pavement surface, paint applicator means (75, 76) arranged mounted from the support boom rearwardly from the marking detection element (80) for movement transversely of the direction of movement of the support boom (11) along the desired pavement surface, and control means actuable in response to a signal from the marking detection element to move said paint applicator means to a position over the old line markings and to operate the paint applicator means to deposit paint along the old line markings on the markings on the pavement surface.

Abstract: A free-standing traffic directing sign consisting of a base, a panel which fits into a slot in the base, and a breakway mounting assembly including a pin. The breakaway mounting assembly is connected to the base and is designed to retain the panel in the slot. When a predetermined force, such as a vehicle striking the sign, is applied to the panel and transmitted to the mounting assembly, the pin of the mounting assembly breaks allowing the panel to pop out of the slot. A new pin can be used to reassemble the panel and the base.

Abstract: Compaction plank for a road-finishing machine for incorporating and compacting freshly laid roadmaking material (3), preferably having a variable effective width. To this end, the compaction plank preferably comprises a main plank and laterally extendable adjusting planks. It also has a base plate (2, 18) for flattening the roadmaking material (3) associated with one or more bar-shaped, driven stampers (5, 6). Two stampers (5, 6) are provided, namely a front stamper (5) arranged in front of the base plate (2, 18) in the direction of travel (4) of the road-finishing machine and a rear stamper (6) arranged between the elements of the base plate (2, 18). The stampers (5, 6) are preferably interconnected by a two-armed lever (7), each stamper (5, 6) being connected with one of the two lever arms (7a, 7b), and the lever (7) can be driven so as to oscillate about its bearing point (8).

Abstract: A device for spreading particulate material in an elongated path at a precise predetermined height. The device comprises a front panel extending vertically from an upper opening and then extending horizontally terminating at the forward edge of a lower opening. A rear panel extends vertically from the upper opening and terminates at a lower edge located at an elevation above the lower edge of the front panel. Side panels extend vertically and are coupled to the front and rear panels. The side panels have inwardly extending shoes with lower surfaces parallel with the lower edge of the horizontal portion of the front panel. An L-shaped bar is adjustably positioned adjacent to the lower edge of the rear panel for varying the height of the particulate material to be dispensed.

Abstract: The invention is drawn to a self-propelled power screed for smoothing freshly poured concrete. The screed is fully supported upon two or more vertically adjustable ski-shaped bases that manipulate the height of the screed relative to the surface. Each of the supports is powered by its own motor and may be adjusted independently in order to achieve a desired operating slope. The supports are situated within the outer limits of the screed body.

Abstract: An improved apparatus for breaking hard surfaces which has a torsional spring and an oscillating member attached to the spring along the spring length and to a working tool and a hydraulic generator at either end. A tubular housing anchors the torsional spring at one end to prevent reciprocal movement and is also attached by an attachment means to the torsional reaction mass. Another tubular housing is attached to the torsional reaction mass at one end and to the bearing housing at the other.

Abstract: A system for servicing and maintaining an aircraft includes a fuselage dock assembly having a first ground-supported column, a second ground-supported column and a walkway section supported by the first and second columns. The system also includes a tail dock assembly having a recess defined therein for receiving a tail section of an aircraft, and an engine stand for servicing an engine of the aircraft that is not readily accessible from the fuselage dock assembly or the tail dock assembly. Structure is also provided for adjusting the height and inclination of the walkway section relative to a horizontal plane, so that the walkway section will conform to the natural inclination of a particular aircraft. The system includes serveral other novel and advantageous features for increasing the safety and efficiency of aircraft maintenance.

Abstract: An improvement for increasing the resistance of manhole cover supports to deformation is provided which comprises equipping the upper edge or flange thereof with a succession of pressed-in gussets, the troughs of which slope with respect to the keeper of said cover support or equipping a keeper wall thereof with a succession of pressed-out gussets.

Abstract: An adjustable manhole cover support, useful in repaving or resurfacing of road for raising the grade of an existing structure like a manhole frame, that holds a circular cover and is capable of fitting frame openings of somewhat varying diameters, is shown. With this cover support one can standardize on a specific, single diameter manhole cover size for a group of manholes that otherwise would call for an inventory of several different cover sizes.

Abstract: A heating device for heating a substantially planar screed plate for a paving machine comprising a plate being spaced from the screed plate, and a space being defined therebetween. A heated gas inlet feeds into a tunnel connecting to the space. At least some of the heated gas is directed from the tunnel substantially parallel to the screed plate. The tunnel is formed from a plurality of tunnel branches with a orifice attached to the end of each tunnel orifice determining the direction where the heated gas will be directed.

Abstract: A process of manufacturing "in situ" safety barriers for roads and highways, forming barriers between opposite traffic ways. The process is based on forming wholly enclosed moulds. The containers may have means for attachment of other adjacent moulds. These moulds when empty are light and transportable. They are transported and located in a position of use. Once in position, the moulds are filled with a suitable material to give it additional weight. An example of such material is concrete from a concrete mixer truck. Other materials can also be used. The mould can be made of any suitable material (polyester resin compounds, polyester, steel sheet, rigid plastics, . . . ). Such barriers have a large range in uses (versatility), including, but not limited to: use for fixed protection, use for mobile protection, use as ecological barriers, use as an acoustic signal in mobile works.

Abstract: A grooving depth indicator for a highway grooving or milling machine comprises a display device which is coupled by means of a cable to a mechanism which is employed to adjust the cutting depth of the machine. The display device includes an indicator scale which rotates relative to a zero marker, the scale being caused to rotate by a shaft on which a pulley is mounted. The coupling cable, which is maintained under tension by a spring bias, engages the pulley.

Abstract: A mobile, self propelled pothole patching vehicle is provided having a truck chassis and cab. The pothole patching vehicle includes an asphalt conveyor system for delivering asphalt to the road surface from a storage hopper mounted on the chassis. The conveyor system is uncoupled from the hopper and is movable with respect to the rest of the vehicle both longitudinally along the axis of the vehicle and transversely in a side-to-side swivelling motion. The conveyor is provided with a conveyor housing having a slotted top panel through which the asphalt passes into the conveyor interior. A conveyor mount slidably receives the conveyor and is pivotally coupled to the discharge port and the chassis for lateral swivelling motion of the extendible conveyor. During longitudinal and lateral movement of the conveyor, the discharge port opening into the housing interior remains within the ambit of the slotted portion of the top panel for continuous delivery of asphalt.

Abstract: Expansion joints are sealed with a combination of curable elastomeric adhesive and an elastomeric longitudinal sealing element having three segments in cross-sectional profile including parallel segments for bonding through the adhesive to the wall of the expansion joint, a looped or folded segment for completing the seal and compressive segments for positioning the longitudinal sealing element in the joint.

Abstract: A road surface treating apparatus including a wheel-supported framework having forwardly extending arms pivotally carried thereon. The arms have a transversely extening tool bar mounted to their forward ends. A tool-supporting frame is detachably and adjustably mounted on the tool bar. A cutter drum housing is pivotally mounted on the tool-supporting frame for floating pivotation about a horizontally extending, fore-and-aft axis to facilitate side-to-side rocking movement of the drum housing. A cutter drum is rotatably mounted in the housing and carries circumferentially spaced rows of cutter blades each mounted for rotation about a horizontal axis. A pair of horizontally spaced, shock absorber units is connected between the housing and tool-supporting frame to damp and smooth the side-to-side rocking movement of the housing and the cutter drum mounted therein.

Abstract: A surface coating material applying and spreading apparatus comprises a forward and two rear drive wheels, with each of the three drive wheels being driven by a separate hydraulic motor independent of each other. A hydraulic circuit connects the three hydraulic motors of the drive wheels with a hydraulic pump, and communication between the pump and each of the motors is automatically controllable to drive one, two, or all three of the hydraulic motors and their associated drive wheels. The vehicle also comprises a spray bar assembly that is pivotally connected to a frame of the vehicle, and is pivoted to a raised and lowered position relative to the vehicle frame. The vehicle frame also releasably supports interchangeable rotating brush and wiper blade assemblies. The rotating brush assembly is universally pivotable horizontally and vertically from side to side, about the pivot connection to the vehicle frame.

Abstract: A shock energy dissipation traffic divider barrier comprises a plurality of aligned energy dissipating members (1) slidably supported on a bearing surface (2), each of the dissipating members having a guide extending transversely therethrough. An anchoring cable (4), fastened at a point before the first or leading dissipating member, extends through each of the dissipating members in slidable engagement with its guide and is connected to a shoulder (5) behind the last of the dissipating members with a compression spring (6).