Abstract: An tool adapted for attachment to a double pin mounting structure of the type that is commonly employed on excavator or backhoe type machines or vehicles. The tool is a bucket assembly with a grapple-like tine assembly mounted thereto and controlled by hydraulic actuators. The bucket assembly is mounted to a boom of a backhoe, for example, utilizing a single assembly composed of a hydraulic actuator and coupling members to attach to the double pin mounting structure on the tool. The bucket assembly is mounted on the boom to provide extended movement relative to the boom, and the grapple-like tine assembly is mounted to the bucket assembly for full closure and to enable near full opening relative to the bucket assembly. The tine assembly may be actuated by a pair of hydraulic actuators mounted adjacent one or both sides of the bucket assembly via a free floating bell crank for each pair of hydraulic actuators.

Abstract: The NOx-cleaning paving structure of the present invention comprises a concrete base layer 1, a paving layer 2 and a surface layer 3 as illustrated in FIG. 1. The surface layer 3 comprises 100 parts by weight of cement, 5-50 parts by weight of titanium oxide powder and 100-700 parts by weight of aggregate, by which the surface layer on the paving layer can be provided with an NOx-cleaning action and an excellent durability. In addition, pozzolan materials, particularly a blast furnace slag, or adsorbing materials can be added to the surface layer. The paving layer 2 comprises an asphalt paving 21 or a concrete paving 6, both of which may include the used paving layers. It is preferable that the asphalt paving is porous and the surface thereof has an unevenness. Additionally, it is preferable that the thickness of the surface layer is 1-300 mm for the concrete paving and 2-15 mm for the asphalt paving. Among cement, injection cement for half-flexible paving is preferable.

Abstract: A grab having at least one shoe for support against the walls of the hole that the grab is digging, and elements for moving the shoes between a folded-in position in which they remain alongside the frame and an unfolded position in which they press against the walls of the hole. Preferably, unfolding of the shoes is performed automatically when the grab reaches the bottom of the hole. The excavator of the invention is provided with such a grab. A very high digging force is achieved without an increase in the volume or in the weight of the grab.

Abstract: A dock leveler with run-off barrier configuration is disclosed in two embodiments. In a first embodiment, the dock leveler includes a faceplate, a deck, and a lip with the faceplate mounted on the end of a dock, the deck pivotably mounted to the faceplate and the lip pivotably mounted to the deck. The deck is pivotably mounted to the faceplate via a first linkage including two legs pivotably mounted to each other as well as to each of the faceplate and the deck. The faceplate and the lip are interconnected with a second linkage including two arms pivotably connected together and pivotably connected to each of the faceplate and the deck, respectively. Gussets are provided on a portion of the faceplate and include recesses terminating in upwardly turned detents. In one configuration of the dock leveler, the termination edge of the lip may be received within the recesses in the gussets so that the deck portion acts as a sturdy barrier.

Abstract: A combined bucket and scarifier device includes a bucket having a bottom wall, a rear wall, and two side walls coupled to the bottom wall and the rear wall to define an interior space. The bucket has an open front end and a generally smooth lower front edge. The bottom wall includes a plurality of openings therethrough. A scarifier is operatively associated with the bucket. The scarifier has a plurality of teeth constructed and arranged to be movable with respect to the bucket between an inoperative position within the interior space so as not to obstruct the lower front edge and the bottom wall of the bucket, to an operative position with portions of the teeth extending through the openings in the bottom wall of the bucket. An actuating structure is mounted with respect to the bucket to move the teeth between the inoperative and operative positions.

Abstract: A harrow tine with a cutting edge for increasing the efficiency and useful life of a harrow tine. The inventive device includes a harrow tine, and a hardened edge member attached to a lower end of the harrow tine for engaging a ground surface. The hardened edge member preferably is tapered forwardly thereby creating a syncline shaped structure with a leading edge which easily penetrates the ground surface. The edge member is preferably constructed of a hardened material such as but not limited to chrome.

Abstract: A retractable side wing assembly, adapted to be mounted on a side of a road vehicle for clearing snow off the same, includes a scraper having a frontward end pivotally secured to the side of the vehicle and a rearwardly and outwardly extending free end, a retracting member having a first end rotatably secured to a carriage of a shock absorbing device and a second end rotatably secured to the side of the vehicle rearwardly of the scraper, and a fixed part of the shock absorbing device rigidly secured to the scraper in proximity of the frontward end. The shock absorbing device that could also be retrofitted as a kit on an existing side wing assembly includes an absorber member rigidly secured to both the fixed part and the carriage sliding therealong, and allowing for automatic rearward deflection of the scraper pivoting around the frontward end from its standard position to a deflected position when hitting an obstacle.

Abstract: A multiple-chain trenching machine comprises a prime mover with a trenching head assembly operably connected thereto. The trenching head may be raised, lowered, and/or pivoted relative to the prime mover, and comprises: a) a frame operably connected to the prime mover at a proximal end; b) one or more pairs of proximal and distal primary sprockets mounted on the frame; c) a primary endless-chain digging assembly engaged with and circulating around each pair of primary sprockets; d) one or more pairs of proximal and distal secondary sprockets mounted on the frame; e) a secondary endless-chain digging assembly engaged with and circulating around each pair of secondary sprockets. The primary chains are substantially wider than the secondary chains, and the diameters and positions of the sprockets may be such that each of the secondary chains cuts more deeply into the ground formation than the primary chains, thereby producing a narrow relief slot corresponding to each secondary chain.

Abstract: A concrete paving machine for leveling concrete having a frame and at least one dowel apparatus carried by the frame. The at least one dowel apparatus is movable along a working width of the concrete paving machine in a direction perpendicular to a paving path. The at least one dowel apparatus includes a vibration device and a dowel distribution device. The dowel distribution device comprises a series of longitudinal members having L-shaped profiles. Each longitudinal member forms a predetermined pattern of recesses wherein the series of longitudinal members are slidably arranged so that in an unlocked position, the recesses of each longitudinal member are aligned so as to permit distribution of at least one set of dowel bars. In a locked position, each longitudinal member is arranged to so that the recesses are misaligned so as to prevent distribution of at least one set of dowel bars.

Abstract: A compaction wheel for landfill compactors which is fabricated as a two (2) piece assembly including a wheel core and a removable and replaceable outer sleeve. The outside surface of the removable and replaceable outer sleeve can be smooth or have cleats preassembled thereon. This is in contrast to known prior art compaction wheels for landfill compactors which are fabricated as an integral one (1) piece assembly. The compaction wheel for landfill compactors is fabricated as a two (2) piece assembly and allows a worn removable and replaceable outer sleeve to be quickly and easily removed in the field, if desired, and replaced with a new removable and replaceable outer sleeve without cutting into or removing material from the wheel core of the compaction wheel for landfill compactors.

Abstract: At their lower edge (6) excavators are provided with a tooth arrangement consisting of two parts (1 and 2), one part (2) being attached to the bucket (6) and the other part (1) being exchangeable. The two parts (1 and 2) are held together by means of a male and female relationship and a transverse aperture (3 and 25) with a locking body (4). When the exchangeable part (1) becomes worn it may start to become unstable. The object of the present invention is to eliminate this drawback and this is achieved in that the locking body (4) comprises two opposing flat surfaces, provided with one or more spacers (15-20) intended to restrict approach of the two surfaces towards each other.

Abstract: A sawhorse type of traffic barricade constructed from identical leg units. The legs are equipped with a stop to prevent them from opening beyond a predetermined point. The legs have the cross section of a right triangle, allowing the hypotenuse sides of the legs to nest within each other. The legs may be equipped with complementary convex and concave portions to allow the barricades to be stacked securely atop one another by fitting the portions together.

Abstract: A hinge structure for a folding implement frame includes a reversible mounting bracket on the wing side of the hinge to accommodate positioning of the mounting around obstructions such as the tool mounting brackets for certain tool spacing arrangements on the implement frame. A wing bump stop integrated into the mounting bracket on the main or inner frame side of the hinge reduces the number of parts and eliminates another potential obstruction on the frame. The stop includes a mounting hole for the base end of the hydraulic folding cylinder to further reduce parts, obstructions and cost.

Abstract: A tire for rollers, particularly vibrating rollers, designed for compacting soil, which has a cover made of even sections. The cover sections have the shape of a triangle or trapezium. Adjoining sections each share a side of a triangle or trapezium of the same length and are arranged in such a way that on the face of the tire, running in the direction of its circumference, the point of a triangle of a preceding cover section is followed alternately by the side of the triangle, situated opposite the corresponding point of a triangle, of the adjoining section.

Abstract: A wedge shaped bumper for the draft link of a tractor three point hitch is adjustable along the length of the draft link and has a concave curved surface in the longitudinal plane of the draft link. The longitudinal curve allows the bumper to be shorter in length than a flat surfaced wedge bumper while providing the same change in thickness. The bumper mounts to the draft link in a longitudinal channel formed by upper and lower walls on the draft link having tapered engagement surfaces to transmit vertically loading from the bumper to the draft link without shear loading of the bumper mounting bolt.

Abstract: A ground working device is formed from a sub-frame having a first side and a second side, plural discs mounted for rotation on the sub-frame between the first side and the second side about an axis that extends from the first side to the second side; and a set of scoops mounted on each disc in ground contacting position. The scoops efficiently lift the ground surface material, which falls to the ground in a sorted manner with coarser material on top. A motor is operatively connected to the plural discs for rotating the discs about the axis. Each scoop in each set of scoops has a ground working face that extends transversely to the disc on which the respective scoop is mounted. The scoops each have concave ground contacting surfaces. Each scoop is received in a respective slot in the disc in which the respective scoop is mounted. The ground working device is mounted on a main frame, which is provided with ground engaging wheels. The sub-frame is retractably mounted on the main frame.

Abstract: A dock leveler mountable in a pit including a rear wall, the leveler including a deck with a front end and that is capable of pivotal movement relative to the rear wall; a lip capable of movement to a substantially coplanar position relative to the deck; and a bumper mounted adjacent the deck front end beyond the lateral width of the lip.

Abstract: A tired roller, which permits widening the field of view on both the left and right sides of an operator's section and is convenient for steering. In a tired roller with an operator's section arranged close to a right-hand side wall of a tired roller main body 11 and with an ingress-egress step 18 arranged on the tired roller main body 11, a space 20 for the arrangement of the ingress-egress step 18 is formed on the tired roller main body 11 at a position between a left-hand side wall and the operator's section. In the arrangement space 20, the ingress-egress step 18 which is provided with plural treads 21,22,23 is arranged extending aslant from the operator's section toward a lower part of the left-hand side wall, so that an operator 9 can look down at a road surface on the left side from the operator's section through a space above the treads 21,22,23.

Abstract: A dampening device for use with conventional finish dirt scrapers characterized by a shaft with the lower end of the shaft attached to a skid shoe and the upper end of the shaft having a piston mounted thereon which operates in a cylinder, wherein the cylinder has a divider containing an orifice which separates the chamber into a lower chamber and an upper chamber and a by-pass oil line with the upper end opening into the upper cylinder chamber and the lower end opening into the lower cylinder chamber below the piston so that the cylinder operates in a closed oil system in which the oil helps minimize bounce as the piston moves up and down, and a compression-expansion spring surrounding the shaft with the upper end abutting the bottom of the cylinder and the lower end rotatably attached to the skid shoe, the piston and spring working in unison to dampen the normal bounce of the bucket on finish dirt scrapers.

Abstract: A plow blade deflector system for reducing the size of windrows thrown to the side of a plow blade. The inventive device includes a first bracket and a second bracket attachable to the upper edge of a plow blade, a pivot structure attached to the brackets, an arm member pivotally attached to the pivot structure, an actuator attached to the plow blade and to a distal end of the arm member, an upper member attached to the arm member, and a deflector member vertically attached to the upper member. The deflector member preferably includes a plurality of brace members extending from the upper member to the deflector member for providing additional support during usage. The deflector member preferably extends at an acute angle with respect to the deflector member so as to be substantially parallel to a curb during usage. The actuator allows the operator of the snowplow to elevate the deflector member during normal usage thereby allowing the snow to be diverted to the side of the snowplow.