Abstract: A grading machine includes a forwardly projecting frame partially supported by a small tractor. A blade assembly on the frame disperses and strikes off aggregate for subsequent paving along a course. The blade assembly of the apparatus is indirectly supported by linear actuators in turn supported by a shoe which travels along the aggregate surface. Adjustable indicators on the flame indicate the relationship of the aggregate surface to a desired aggregate height with subsequent operation of the actuators lifting or lowering the blade assembly to raise or lower the blade assembly strike off action for return of the indicators to a predetermined relationship to guides, shown as concrete forms, extending along the course of the aggregate being laid. A vibratory compactor trails the shoe and may move about multiple axes. The shoe supported actuators may be operated in a uniform or differential manner, the latter resulting in transversely tilting the blade assembly for transverse sloping of the aggregate surface.

Abstract: A vibrating device for processing a floor layer. The device includes a vibrating board, a vibrating mechanism and a handle. The handle is attached to the vibration board with at least one clamping coupling. The clamping coupling includes at least two connecting elements, each having conical parts wherein one of the conical parts is adapted to fit within another of the conical parts. The clamping coupling further includes a tensioning device that is arranged to axially tighten the conical parts against each other.

Abstract: Curb forming apparatus comprising a device for pushing hardenable material through a channel defined by a mold and a feed extending into the channel for forming a groove into the hardenable material and for supplying elongate stock to the groove.

Abstract: An apparatus, and related method, for laying sand and/or a sand reinforcement matrix onto a pre-prepared surface, includes an apparatus having a hopper for providing a matrix to be laid, a plunger at the forward end, in the sense of direction of movement of the apparatus, of the hopper and an element for reciprocating the plunger for taking material from the hopper and delivering it through an extrusion aperture in the rear thereof to an extrusion mold. The extrusion is effected by moving forwardly as pressure is applied to the matrix to be extruded and as the mold passes over the matrix. The extrusion of a sand, or a sand reinforcement, is compacted in the extrusion by using the weight of the apparatus against which the extrusion plunger acts together with the impaction of previously extruded material.

Abstract: A trench filler having a generally synclinal front section having a solid top and generally downwardly extending sidewalls, a rear section of unitary construction with the front section, the rear section having a solid top and generally downwardly extending sidewalls that are generally longitudinally parallel to each other, and integral running skids beneath the sidewalls that extend forwardly beyond the front section and having upwardly curled ends wherein dirt located beside a trench is gathered by the front section and released through the rear section back into the trench without substantially disturbing the turf located about the trench.

Abstract: A flexible automated trowel for sliding formwork machine allowing the finishing of a continuous trapezoidal wall of the type having one rectangular side and one side inclined towards the top or with two angular sides. A mold supporting the trowel comprises two straight sides, an enlarging setback originating from a formwork line. A driveway cutter proceeds from the enlarging setback in the direction of the slope of the angular wall. The cutter may have a concave face which is to be placed against a moldable face to produce a superior convex face to the continuous wall. Materials like concrete for curbs, gutters, driveway entrances may be continuously poured and necessitate little or no finishing touches.

Abstract: The present invention provides a novel arrangement for selective mounting and demounting of a mold to a self-propelled slip-form paving machine. The paving machine basically comprises a frame, a drive engine, a hopper for concrete or another suitably flowable paving material and the aforementioned mold in the desired configuration of the pavement (curb, gutter, etc.) to be formed. The mounting and demounting arrangement comprises a set of hydraulically pivotable latching levers which engage with latching bars on the mold for quickly coupling of the mold to and from the machine frame without the necessity of manual manipulation of mounting bolts.

Abstract: A manually operable and steerable curb extrusion device for extruding curb, barrier, wall, gutter or the like from concrete, cement or some other moldable building material. The curb extrusion device has a hopper into which building materials are placed to fall onto a reciprocating orbital compaction member which compacts, kneads, and forces the building material through an open ended extrusion mold where it is shaped before extrusion.

Abstract: A manually operable and steerable curb extrusion device for extruding curb, barrier, wall, gutter or the like from concrete, cement or some other moldable building material. The curb extrusion device has a segmented vibrating hopper into which building materials are placed to fall onto two tapered counter rotating vibrating augers which compact and force the building material through an extrusion mold where it is shaped before extrusion.

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: In accordance with this invention I provide a curb laying machine designed to extrude curbing of molten asphalt or concrete in a parking lot or the like. This machine utilizes a wheeled chassis, and a curb mold removably carried on a lower portion of the chassis, with the lower edges of the mold in contact with the ground during the laying of curbing. An engine driven auger is utilized for bringing about the extrusion of curbing through the curb mold as the machine moves slowly forward. My machine utilizes a chassis, steerable front wheels supporting a forward portion of the chassis, and first and second rear wheels mounted on a rearward portion of the chassis. The improvement in accordance with my invention comprises a rapidly operable height changing mechanism associated with the first rear wheel, latter wheel being located in the immediate vicinity of the curb mold.

Abstract: A slip form paving machine including a main frame supported by a front driven steering wheel and a pair of rear wheels that straddle the fore-and-aft center line of the main frame. An open top hopper is mounted on the frame and the lower end of the hopper communicates with an open bottom slip form, so that paving material, such as concrete fed into the hopper, will flow downwardly and be discharged from the slip form as the machine moves over the terrain. An outrigger frame is pivoted to the main frame about a horizontal axis and is located laterally of the rear wheels. The outrigger frame carries an outrigger wheel which is located laterally outwardly of the slip form and an inclined scraper blade is mounted forwardly of the outrigger wheel. When using a relatively wide slip form, the outrigger wheel is engaged with the terrain, and the rear wheel closest to the outrigger wheel is raised above the terrain so that the machine is supported on the outrigger wheel and the other of the rear wheels.

Abstract: Obtainment of and control of specific asphalt paving densities during roadbed repair by preshaping hot mat top surfaces prior to compaction. Like a shaped munition charge, a preshaped top surface on recently laid hot asphalt mat transmits compaction forces in precalculable directions and carries therewith asphaltic materials so as to obtain desired finished paving densities. A conventional strike off bar is modified with base margin indentations which partially and wholely, according to desired specifications, grade or top dress hot asphaltic mat with desired, force-transmitting planes. Adjunct apparatus is employed by way of translating and rotating plates to partially or wholely cover the indentations so as to effect various, but differing, desired mat surface shapes. An improvement to the conventional vibrating screed is also employed to shape the initial asphaltic mat shape while simultaneously tamping the shape gradually into its desired and compacted final form.

Abstract: An apparatus for continuously shaping and extruding concrete or other moldable material as a decorative curbing. The apparatus is operable by one person at high extrusion velocity, negotiates short radius serpentine curbing paths, and is maneuverable in tight spaces because of side-to-side and vertical adjustment features, and a short "wheel base". Moldable material is placed in a hopper and flows into an auger which compresses, mixes and extrudes the material through a shaped, non-flanged mold into the desired curb bed. A fueled engine or electric motor drives a hydraulic pump to pressurize hydraulic fluid. The pressurized fluid drives a hydraulic motor which turns the auger. The speed is controlled by simply setting a fluid flow valve.

Abstract: A roadway drainage installation comprising a roadway, an elevated pavement extending alongside the roadway, and a more or less horizontal apron extending alongside the roadway so that it is located between the roadway and the pavement at the level of the roadway. A curb extends upwardly from the apron to the pavement so that the apron and curb define between them a water pathway. A storm water conduit runs below the pavement, the apron and the roadway. A curb inlet device comprises an opening in the apron as well as an opening in the curb, with the openings being in communication with each other. The curb inlet device is connected to the storm water conduit such that water can pass from the water pathway, through the openings into the storm water conduit. Water-deflecting members are located in the apron opening.

Abstract: A curb forming apparatus is disclosed as having a concrete extruding mold device arranged for continuously receiving concrete and discharging the same to form a standard height curb. Elements of the mold device are connected to a power driven actuator and arranged to be raised and lowered for molding the concrete downwardly and upwardly to form thresholds for driveways and intermediate tapering sections for the transitions between the full height curbs and the thresholds.

Abstract: A transportation system including a solar energy collecting monorail structure formed with a photovoltaic surface layer having a solar energy convertor for converting the collected solar energy to electrical energy. A power distribution device for distributing stored energy to transit vehicles being propelled along the monorail structure or distributing excess energy to a remote power utility source. The monorail structure includes a device for propelling a transit vehicle according to magnetic principals associated with transverse flux motors. The system also includes a computer controlled, elevation compensating monorail structure extrusion machine comprising a fabrication chamber which continuously fabricates the monorail structure along a monorail construction right-of-way.

Abstract: Concrete moulding apparatus (10) is provided which has a mould (19) through which concrete is extruded from a hopper (17) by the action of a pusher plate (22) reciprocating in the hopper (17) towards and away from the mould entrance (20). The pusher plate (22) is arranged to pivot during reciprocation to cause excess material forced towards the mould entrance (20) to be squeezed upwardly back into the hopper (17).

Abstract: A fixture for an adjustable mold in which concrete road barrier sections are precast. The mold can be configured to cast symmetrical or asymmetrical sections having a uniform cross section throughout or a cross section that varies uniformly along the length of the section.

Abstract: Apparatus for forming a concrete panel for constructing a wall of a building in which a reinforcing column of concrete is integrally formed therewith. The apparatus has a hopper in which cement is poured. Depending from the hopper is an inverted U-shaped channel member with depending walls for forming the column. Projecting outwardly from the bottom of the depending walls are flanges. Outboard of the flanges are runners which slide over rails for advancing the apparatus over a rectilinear path.

Abstract: The improvement to machines for filling trenches in paved surfaces has two hoppers hydraulically operated to deposit selected course material directly into the trench from a substantially vertical drop in substantially equal quantities from each side. At least one of the hoppers moves responsive to the movement of guide rails that follow the contours of the trench. A vertically adjustable strike-off plate, adapted to define a course level above or below the level of the surrounding paved surface, has two components, at least one of which moves relative the other responsive to the guide rails to accommodate trench width, and includes apparatus for laying down a window of paving material during a final pass and pushing it into a mini-trench created by intrusion of the guide rails.

Abstract: A construction apparatus with a trimmer connected by a three-point suspension wherein each of the three points is independently adjustable for adjusting the angle of the trimmer relative to the main frame in accordance with the desired slope or grade of the ground surface and to raise and lower the trimmer. The trimmer is also provided with an improved carriage for permitting the trimmer to be moved laterally outwardly of the construction apparatus to grade the ground surface alongside the construction apparatus. The construction apparatus preferably molds a paving material onto the ground immediately behind the trimmer so that concurrent grading and molding is accomplished in one pass of the construction apparatus.

Abstract: A self propelled construction apparatus for continuously forming a paving material on a suitable surface such as the ground. The apparatus is capable of performing a variety of molding operations. The main frame of the apparatus is so constructed as to be adjustably extended outwardly longitudinally for wide width paving. Also, the apparatus can be laterally adjusted to perform narrow width paving. The apparatus may have an offset mold on either side thereof for offset molding or a mold underneath the main frame for molding between the ground engaging means. Further, means for mounting and connecting the mold to the main frame allows the mold to be moved angularly on a vertical axis from an operative position alongside the main frame to a transport position at the end of the substantially aligned with the main frame.

Abstract: An apparatus and method for cutting grooves on the edges of an already formed road. Each of a plurality of toothed cutting wheels revolves about a substantially vertical driving shaft. Simultaneously, each cutting wheel (attached to a respective rotary shaft) revolves about its own longitudinal and substantially horizontal axis. The apparatus is moved along a road, near an edge thereof, thus giving rise to one linear motion and two rotary motions. Sequentially, each cutting wheel enters an edge of the road from a region beyond the road edge, due to a slight tilt of the plane which contains the cutting wheel rotary shafts. The resultant grooves are deepest at the road edges and then gradually diminish to zero depth, the grooves being arcuate and parallel to each other. With the plane containing the cutting wheel shafts completely horizontal, the apparatus can cut rain drainage grooves in a raised marking strip on the road or can remove bumps from the road.

Abstract: An apparatus and method for cutting rain drainage grooves in a road surface, such as at the edges of the road to form a road marker system. A cutting cylinder rotates about its longitudinal axis, the latter lying in a substantially horizontal plane and at some angle, generally a right angle, to the road direction. The cutting cylinder is mounted on a frame, the latter attached to and carried by an automotive vehicle such as a truck. As the truck travels along the road, the cutting cylinder is moved alternately up and down, into the road surface, and forms the grooves. The cutting cylinder can be slightly tilted, so as to produce grooves of variable width and depth. The truck moves along the road being grooved at a substantially uniform speed. Preferably, the slopping side walls of the grooves are coated with a retro reflective coating. The grooves continuously drain rain so that the retro reflective coating is visible during hours of darkness and rain, to maintain visibility of the road edge to drivers.

Abstract: An attachment for dump trucks having a dump bed with a chute leading downwardly to a discharge end for discharging material along a roadway surface. The attachment adapts the truck to perform roadway surface repairs by receiving, grading, and pressing roadway repair material into place along damaged areas of the roadway surface while the truck is driven forwardly. The attachment includes a blade that is pivoted to the truck at a position rearwardly adjacent the chute discharge end. The blade is arched to receive and grade loose bulk repair material delivered from the dump truck bin through the downwardly projecting chute. The blade is also pivoted between an operative position, riding along the roadway surface, and an inoperative position above the roadway surface. Material delivered to the blade and graded thereby can be compacted and pressed into damaged roadway areas by the supporting truck tires.

Abstract: A manually operable curb extrusion device for extruding curb, barrier wall, gutter or the like from concrete, cement or some other moldable building material. The curb extrusion device has rapidly interchangeable extrusion molds and compacting members to provide for quick and efficient changing from one type of curbing to another. The building material is placed in a receiving hopper and falls into a compacting chamber where a power driven and reciprocating compacting member compacts the material into the extrusion mold where it is shaped before extrusion. The curb extrusion device is manually directed or steered along the desired course via an adjustable steering mechanism.

Abstract: The present invention simultaneously finishes the surface of an area of plastic concrete and forms a curb along one or both sides of the area as the apparatus is translated along the length of the area. The apparatus includes a vibratory concrete finishing machine such as a triangular truss concrete screed having first and second sides and spaced apart front and rear screed blades. The two sides of the finishing machine are supported by roller support units which engage each of the spaced apart forms. Coupling means connects the first roller support unit to the first side of the finishing machine, adjusts the lateral spacing between the first side of the finishing machine and the form, and adjusts the elevation of the screed blades with respect to the form. A curb form is coupled to the finishing machine between the form and the first side of the finishing machine.

Abstract: A lightweight, portable, vibrating-type concrete screed utilizes an elongated, open frame structure, is adapted to being winched automatically to screed a concrete-formed road and simultaneously form and smooth associated curbing and guttering with improved vibrator and smoothing means.

Abstract: The continuously extruding curb forming machine for roads, for example, may be equipped with a downwardly moving sharpened blade for use in the insertion of an expansion joint piece at appropriate intervals into the curb without stopping the operation of the machine while the expansion joint piece is inserted. The expansion joint piece may be well known felt material for this purpose and the inserting blade has a template attached thereto the surface of which conforms to the surface of the curb and thus to the surface of the expansion joint piece. As the blade moves into the partially cured concrete, the template forces the joint piece into the same concrete.

Abstract: Apparatus for extruding a continuous concrete structure along a surface such as a curb and gutter. The apparatus includes an open bottom hopper for containing a supply of concrete mounted to a vehicle. An open bottom mold extends rearwardly from the open bottom of the hopper and causes the concrete flowing from the hopper onto the surface to be provided the proper cross-sectional shape as the vehicle moves along the surface. The lower leading face of the hopper is slanted rearwardly. Vibrators are immersed within the concrete overlying the open bottom of the hopper and in an area generally horizontal with and to the rear of the lower leading face of the hopper. The combination of the slanted lower leading face and the properly situated vibrator causes the apparatus to creep or walk forward so that very little if any motive power need be applied to the vehicle.

Abstract: Apparatus for forming, compacting and finishing the top surface of concrete poured between a pair of removable longitudinally extending parallel opposed forms. The apparatus, which is self-propelled, travels along the tops of the forms. A heavy wooden vibrator member disposed at the forward end of the apparatus may be shaped so that concrete beneath the vibrator is formed and compacted to a depth which varies along transverse axes of the forms. The structural members of the apparatus may be interchanged or adjusted to adapt the apparatus for use with forms of arbitrary spacing. Simple adjustments may also be made to permit the apparatus to traverse forms of unequal height. Removable "skirts" enable use of the apparatus with relatively narrow forms supported above the grade on which the concrete segment is formed--the skirts serve as a "travelling form" to prevent poured concrete formed and compacted by the vibrator spilling beneath the forms.

Abstract: A self-propelled apparatus for extruding and forming a substantially U-shaped concrete lining within a previously dug ditch and including means for accurately controlling the slope or grade of the interior bottom surface of the lining. The apparatus includes a hopper (41) for receiving concrete material and the lower end of the hopper is positioned within the ditch (10) and provided with an open rear end. A forming member (50) is supported for vertical movement at the open rear end of the hopper (41) and the forming member (50) with the sides and bottom of the ditch (10) together define an extrusion opening through which the concrete material passes. Control means (76) is associated with the forming member (50) for vertically adjusting the forming member (50) relative to the hopper (41) so that the slope, grade, or fall of the interior bottom wall (14) of the concrete lining is accurately controlled.

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 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 slip-form machine for concrete curb and gutter includes a chassis having wheels adjustably mounted for guiding the machine along fixed straight or curved tracks. A concrete receiving hopper carriers a vibrator support unit adjustable linearly and pivotally about several axes. Interchangeable forms each attach to the chassis behind the hopper to receive concrete therefrom and have sidewalls extending downward below the wheels and substantially to the ground. A hand winch fixed above the hopper has cable guided out the forward lower hopper portion for advancing the machine and is energized by an operator standing on a chassis mounted platform above the form. A trowel is vertically adjustably fixed to the rear of the form and is separated from it by a substantially constant bubble escape gap. A reinforcing guide rod unit is releasably fixable to the lower front wall of the hopper.

Abstract: Method and equipment for producing a convex riser in concrete flat work. The apparatus includes a frame and shaper which are utilized to produce risers of controlled uniformity.

Abstract: An apparatus for concurrently preparing a ground surface and forming a continuous strip of paving material thereon, and which is characterized by the ability to simultaneously grade the ground surface substantially coextensively with the successive slip forming of the pavement material. The apparatus includes a ground trimmer and a following slip former, with the trimmer being laterally translatable with respect to the slip former so that the concurrent grading and slip forming functions can be performed along a curvilinear path while closely maintaining the lateral alignment of the graded ground surface with the successive placement of the paving material. Thus excessive ground surface is not graded, and no area requiring preparation is omitted.

Abstract: An earthen structure for holding back a body of water has a sloped surface which is paved with an overlapping arrangement of strips constructed of castable material. Each strip is formed by conveying castable material from a mobile receiving hopper that is propelled adjacent to the base of the earthen structure. A bridge conveyor projects laterally from the receiving hopper over the slope. The bridge conveyor deposits the castable material onto the slope forwardly of a spreader device that is advanced longitudinally relative to the slope by a prime mover. A scraper blade of the spreader device is positioned at a preselected elevation by a forwardly projecting sidewall which is connected to the blade and slidable on a previously formed strip. The sidewall maintains the castable material in front of the blade, as the advancing blade spreads the material in a longitudinal strip of a preselected thickness and having a lateral edge extending a preselected lateral dimension outwardly from the sloped surface.

Abstract: An earthen structure for holding back a body of water has a sloped surface which is paved with an overlapping arrangement of strips constructed of castable material. Each strip is formed by conveying castable material from a mobile receiving hopper that is propelled adjacent to the base of the earthen structure. A bridge conveyor projects laterally from the receiving hopper over the slope. The bridge conveyor deposits the castable material onto the slope forwardly of a spreader device that is advanced longitudinally relative to the slope by a prime mover. A scraper blade of the spreader device is positioned at a preselected elevation by a forwardly projecting sidewall which is connected to the blade and slidable on a previously formed strip. The sidewall maintains the castable material in front of the blade, as the advancing blade spreads the material in a longitudinal strip of a preselected thickness and having a lateral edge extending a preselected lateral dimension outwardly from the sloped surface.

Abstract: The paving material supplied into a hopper is conveyed by screw conveyors into a mold provided in the lower part of the apparatus thereby molding and laying the material. The paving material is densely compacted or consolidated in the mold, and when the paving material is conveyed under pressure further, the mold can be pushed up, and the reaction force of the conveying pressure acts to move the entire apparatus horizontally. Thus, structure having the same sectional shape as that of the mold can be formed and laid continuously on the ground.

Abstract: A paving material agitation apparatus for use in water channel forming machines comprising a hopper adapted to accommodate therein paving materials to be laid, a plurality of first screws spaced apart with each other in said hopper, a plurality of rotary drives each being secured to one end of said first screws, respectively, an agitation impeller rotatably engaged with one of said first screws, a rotary shaft rotatably supported by said hopper, said agitation impeller being fixedly secured to said rotary shaft so as to be rotated therewith, and a second screw formed on said rotary shaft.

Abstract: A roadbed and a curb are formed as a single integral structure by slip-forming concrete material using a tracked vehicle supporting a roadbed slip-form and a curb slip-form which extend along opposite sides of a track of the vehicle so leaving a gap between the formed roadbed and curb to allow passage of the vehicle track. A filler portion of concrete material passes rearwardly through a passageway in the roadbed slip-form above the final top surface of the roadbed and such filler portion of concrete material is transferred transversely outwardly to fill such a gap rearwardly of the vehicle track. Finally, the top surface of the material so transferred and that of the roadbed from where such material was transferred are smoothed.

Abstract: This machine consists primarily of a frame, which is supported by wheels, and the frame supports three spaced-apart self-placing form units, which operate in conjunction with finishing rollers. The self-placing form units of the machine are faced with endless synthetic rubber belts, which are backed up by hinged steel pads, and the top and bottom of the self-placing form units are sealed with a plate having a lip at the edge, to overlap the synthetic rubber, so as to repel any foreign matter, or concrete mix, from entering the inside of the units. The machine is reversible in direction when desired, and is used for concrete curb and gutter construction.

Abstract: A slip form or mule for continuously laying concrete along one or more adjacent lanes on the sloping side of a contoured drainage ditch. The slip form is affixed to or movably mounted from a construction machine that travels along the top berm of the ditch. A tool frame support slideably contains a form having an open top and bottom with longitudinally adjustable and segmented side walls and is suspended from cooperating derrick and pivotal frame supports along the side of the machine for registry with and travel spaced above the sloping side of the ditch. A flexible finishing pan follows the form means in the plane of its bottom edges and includes adjustable supports suspending or compressing the pan in relation to the concrete slab being laid.

Abstract: An attachment for one side of an asphalt paving machine to permit laying of a gutter adjacent to and integral with a roadway surface at the same time as the roadway surface is being paved. The device comprises an extension plate to be vertically oriented in alignment with the screed of the asphalt paving machine and means associated with the extension plate to secure it in this position. The extension plate has a rearwardly curved, L-shaped base extending from side to side along the bottom of the plate for smoothing the asphalt. An end gate is provided at the outer end of the attachment to control the spread of asphalt to the required width. The attachment is intended to be bolted to an automatic screed extension or to the side of the screed of the asphalt paving machine, to replace the screed end gate.

Abstract: Slip form concrete laying machines for forming curbs are equipped with apparatus which forcibly inserts compressible sheets downwardly in the freshly laid concrete and which prevents the spread of the curb as the sheet is inserted.

Abstract: A construction machine is disclosed having a main frame that is supported by means of three or four vertically adjustable suspension points from a pair of walking beams located on opposite sides of the main frame. Each walking beam has a vertical steering axis at each of its ends connected to a bogey-mounted self-propelled ground engagement means in the form of a wheel or endless track.In one embodiment one of the walking beams is connected to a side of the main frame by two spaced vertically adjustable suspension means that attach to the beam through pivotal bogey-mounts. One of these adjustable suspension means is pivotally mounted to the frame, while the other is fixed to the frame. The other walking beam is connected to the opposite side of the main frame on a single central vertically adjustable suspension means through a bogey-mount to constitute a three-point suspension on two walking beams for the assembly.

Abstract: The embodiment of the invention disclosed herein is directed to a curber and sidewalk-forming apparatus for contouring concrete along a predetermined run. The apparatus includes a hopper having at least one wall thereof sloping downwardly toward an opening formed in the bottom of the hopper which coincides with an opening formed in a slide plate surface at the bottom of the machine. Flowable concrete passes from the hopper through the opening in the slide plate and is directed rearwardly of the apparatus while the apparatus is transported in a predetermined direction along its run. A vibrating apparatus is secured to one of the walls of the hopper to insure proper flow of the concrete along the interior surface of the hopper so that the concrete continuously flows beneath the apparatus for forming curbs, gutters and sidewalks. A motor generator set is secured to the slide plate and produces electricity to operate electrical motors of the vibrator and winch secured thereto.

Abstract: A machine for slip forming curb and gutter having a slip form with an adjustable top wall to vary the height of the curb.