Abstract: A hoisting boom assembly comprises an upright column being piviotable by a rotary actuator and a first and second boom, the first boom pivotally mounted by its first end on upright column and by its second end on second boom; the second boom having its first section and its second section journalled to be pivotable in a vertical plane; a horizontal shift mechanism as well as a horizontal shift actuator for carrying the free end of the second boom in a horizontal direction; and an actuator fitted between upright column and the first boom for pivoting the first boom. In order to improve its performance, the hoisting boom assembly further includes compensating means for equalizing the forces caused by the operation of a hoisting boom assembly, particularly in situations following and preceding a first and/or a second extreme position assumed by a second boom.

Abstract: A groomer attachment for forklift vehicles includes an elongated rigid member having a top and a bottom. A pair of spaced-apart fork receiving pockets are connected to the rigid member. A flexible blade extends from the bottom of the rigid member. Preferably the rigid member has a front and a rear. The attachment then has a pair of spaced-apart flexible blades extending from the bottom of the rigid member, a first blade being adjacent the front thereof and a second blade being adjacent the rear thereof. The rigid member may be channel-shaped.

Abstract: A bucket equipped with a mixing device for use in work for improving the soil of grounds such as road grounds, an excavation machine having such a bucket, and a soil improvement method using such an excavation machine. The bucket is equipped with a mixing device disposed therein, which device can be rotated by a motor whose number of revolutions per unit time is adjustable, and has an opening formed through the bottom surface thereof. Further, the bucket includes an injection device connected to an external, solidifying agent supply source.

Abstract: A fluid-powered, laterally tiltable tool actuator. A tool has a pair of clevises, and an actuator has a generally cylindrical body with an output shaft rotatably disposed therein with an axis in general parallel alignment with a forward rotation plane through which the tool is rotatable on a backhoe arm by the operation of a rotation link. A bracket is attached to the body and has a pair of clevises for pivotal attachment to the vehicle arm and rotation link. The output shaft has a pair of shaft attachment members at each end for attaching the shaft to the corresponding tool clevises. The first pair of shaft attachment members is rigidly fixed to the shaft and attached to a first tool clevis. The second pair of shaft attachment members is pivotally attached to the shaft and pivots in a plane generally parallel to the longitudinal axis of the shaft.

Abstract: A padding machine attachment for a vehicle is provided. When padding of a ditch for a pipeline or cable is required, the padding machine is removably attached in a position at one end of a conventional bucket loader, bulldozer, or other base machine or vehicle, whereby said attachment moves along the path of travel of the vehicle. As the vehicle moves the padding machine attachment along one side of the pipeline ditch, the padding machine attachment picks up at least a portion of a pile of excavated material placed parallel to and along the same side of the ditch and processes the excavated material into padding material for placement into the ditch for padding the pipeline or cable.

Abstract: A system for crushing a wall of rock comprising a first device, such as a track hoe, for moving with at least two degrees of freedom, a second device, such as an articulating boom, secured to and moving with the first device for moving with at least two degrees of freedom, one of the two degrees of freedom of the second device being different from the two degrees of freedom of the first device. A rotating stone cutting mechanism is secured to the second device, the stone cutting mechanism comprising a rotating drum having a plurality of tooth holders on the surface thereof in a helical array relative to the axis of the drum, each of the tooth holders having a very hard tooth, preferably of a refractory carbide, releasably secured thereto. A motive structure causes rotation of the drum about its axis. The motive structure includes a motor, preferably hydraulic, a sprocket driven by the motor, a chain and a second sprocket coupled to the drum.

Abstract: In the process of soil excavating work or like work with the use of excavators and loaders, it is becoming more usual to use different hydraulically functioning implements. It is often necessary to exchange these implements several times during a working day, necessitating the driver to connect and disconnect the hydraulic hoses involved manually, which can be a time-consuming task and one which is encumbered with the risk of oil spilling from the hoses and generally soiling the clothing of the workman involved, tools and the surrounding ground.

Abstract: In an excavating apparatus including a bucket removably coupled to a distal end of a hydraulically powered boom, a field-detachable and field-attachable ripper comprises a shank portion having a lower tip, a mounting portion disposed along an upper area of the shank portion and a detachable and re-attachable coupling element disposed along the mounting portion. The detachable and re-attachable coupling element secures the ripper to the bucket. There is optionally further included a detachable ripper tip coupled to the lower tip. The detachable ripper tip comprises a metal piece having a point disposed at a first end thereof and having a hollow disposed at a second end thereof. The hollow is adapted to accommodate the lower tip therein. The detachable ripper tip further includes an opening disposed on one side thereof and extending into the hollow. The opening is adapted to accommodate a fastener extending from the side and into the lower tip.

Abstract: A tool for mounting on an implement, in the case of which different functional working ranges are provided with which respectively separate operations are able to be performed. In order to create a multi-purpose tool of this type which at the same time has a high degree of strength and a long working life while making possible efficient operation, the tool has, in accordance with the invention, a center part, whose lateral flanks each constitute a part of the working tool, two lateral parts pivotally mounted on the center part which respectively constitute the other parts of the working tool, and at least one piston and cylinder unit for pivoting the lateral part in relation to the center part and locking elements, with which respectively one lateral part may be locked in relation to the center part.

Abstract: The application describes a method and apparatus for raking with heavy equipment. The apparatus includes a plurality of raking teeth attached to the top portion of a heavy equipment bucket. The apparatus is adaptable to such diverse heavy equipment as front loaders and backhoes. The method includes the use of top mounted teeth to rake pile and load raked material.

Abstract: A pavement cutting and excavating tool comprising an excavation bucket and a cutting disc. The tool is mountable to a construction vehicle such as a backhoe. A disc housing is disposed in the backhoe bucket, and the cutting disc is disposed in the housing. Accordingly, the cutting disc of the present invention is substantially more narrow than the backhoe bucket in which it is partially disposed.

Abstract: Soil materials are screened and crushed simultaneously in a bucket of an excavating machine having its back wall replaced by rotatable crushing and screening elements. The crushed and screened materials fall down through the back wall and the non-crushable materials with size exceeding the size of screen openings remain in the bucket for dumping in the pile of a coarse pieces.

Abstract: A mechanism (22) for supporting an earthworking tool from a vehicle such as a front end-loader (21) includes: (i) a primary support structure (23) adapted to be pivotally attached, in a readily releasable manner, about a generally upright, slewing axis (24), to a conventionally-provided elevating linkage mechanism (25) of a vehicle; (ii) power driver (26,27) to effect controlled slewing of the primary support structure (23) about its slewing axis (24); (iii) a secondary support structure (28) rotatably mounted about a generally forwardly directed axis (29) on the primary support structure (23); (iv) power driver (30) to effect controlled rotation of the secondary support structure with respect to the primary support structure; (v) tool support (32) pivotally mounted on the secondary support structure (28); and (vi) driver (33) to pivot the tool support with respect to the secondary support structure.

Abstract: An earth moving and tamping apparatus rig is provided which can backfill a trench and compact the backfill materials up to 95% compaction. A bucket and a vibrator are attached to a backhoe. The bucket retrieves the filling material and either dumps the material into a trench or sifts it through adjustable screening blades that form the bottom of the bucket. The apparatus includes a means to swivel the bucket 360.degree. with respect to the boom. The end of the bucket then compacts the filling materials into the trench. Each moving rig apparatus may also be equipped with an alternative two-bucket system, where one bucket fits inside the other one or is along side thereof. For trenches as wide as two feet to increase the area of dirt tamped, the two-bucket may be secured in juxtaposition to each other. For more narrow trenches, the second bucket may be closed inside the first bucket and the area tamped will only be the width of a single bucket.

Abstract: A pavement trench mill is designed to be attached to the bucket of a front loader or backhoe. The pavement trench mill has a self contained engine to power the mandrel and is raised and lowered by the bucket on which it is mounted. The trench mill has a gauge that controls the depth of the cut. The cutting drum has a double cutting action which is provided by two sets of edge mounted teeth. The first set of edge mounted teeth are at the same radius and angle as the remainder of the mandrel cutting teeth. The second set of edge mounted teeth are spaced slightly wider (longitudinally) and slightly lower (closer to center of mandrel). This row of teeth trims the outer edge of the trench with greater frequency and leaves the edge smoother.

Abstract: A bucket equipped with a mixing device for use in work for improving the soil of grounds such as road grounds, an excavation machine having such a bucket, and a soil improvement method using such an excavation machine. The bucket is equipped with a mixing device disposed therein, which device can be rotated by a motor whose number of revolutions per unit time is adjustable, and has an opening formed through the bottom surface thereof. Further, the bucket includes an injection device connected to an external, solidifying agent supply source.

Abstract: The invention relates to a sweeping appliance for excavators of the type comprising a stick (1) and a bucket (4) carried by said stick via a transverse pivot pin (5), said appliance including a rotary brush (13) arranged at a free end of a holder (12) whose opposite end is articulated to said stick or said pivot pin to allow pivoting of the holder between a position remote from said stick, in which the brush can actively perform a sweeping operation, and an inactive position close to said stick. The holder (12) is divided into at least two parts (16,17), of which an outer, brush-carrying part (17) is rotatable relative to an inner part (16), more precisely by means of a rotary unit (25) operating between said two parts, thereby permitting the brush to turn about an axis extending at right angles to the axis of rotation of said brush.

Abstract: In order to quickly and easily provide a coupling of a drive fluid to a hydraulic cylinder of an accessory of an excavator, a part articulately connected with a dipper arm and a dipper ladle link of the excavator is also provided with one or more hydraulic couplings of a female type. The accessory to be coupled to the part is provided with the corresponding hydraulic couplings of a male type, so that on connection to the part the accessory after fixing, rotating and locking is also connected to a drive fluid. The hydraulic couplings are kept together by the accessory having been connected to the Joint means of the excavator. When the accessory is disconnected and removed, the hydraulic connections will also be interrupted.

Abstract: A small utility tractor having a front-end loader which is modified to include a backhoe digger mounted on the front-end loader is disclosed. The backhoe digger is readily attached to or detached from the front-end loader to provide a digging function at the front of the tractor. The backhoe bucket is coupled to the front-end loader using an attachment device which releasably attaches the backhoe bucket to the front-end loader so that the backhoe bucket is located below the bottom of the front-end loader and the bucket front opening faces in the opposite direction to which the front-end loader opening faces.

Abstract: A scooping apparatus is disclosed having a carrying frame coupled with a vehicle.A cage having two cage parts, namely a scooping part and a lid are carried by the frame. The rotation axis of the lid part relative to the scooping part extending on a radial distance from the rotating axis of the cage amounts to zero to two thirds of the radius of the cage.A first driving means for rotatably driving at least one of the cage parts. A second driving means for moving the cage parts between the closed position and the open position such that a rotation axis of the lid part relative to the scooping part extending on a radial distance from a rotating axis of the cage amounting to zero to two thirds of the radius of the cage.

Abstract: A backhoe-loader with a undercarriage resting on wheels and comprising at its front end a loader structure with a loader arm and a loading bucket and at the other end a superstructure revolving 360.degree. , a driver cab is mounted to one side of the superstructure and on the other side next to the driver cab there are provided power units and a mounting pad pivotable about a vertical shaft for the horizontal pivot shaft of an excavator boom. The boom is positionable in a raised state with the dipper arm collapsed and the implement in a forward-pointing rest position above the undercarriage and outside the field of view of the driver cab. A front mudguard is present in front of the mounting pad and functions as a rest for the implement, the loader structure is mounted asymmetrically relatively to the longitudinal center axis of the undercarriage on the cab side of the undercarriage, and the rest for the implement on the front mudguard is widened toward the middle of the undercarriage.

Abstract: A trench paving device releasably secured to the lower lip of an earth moving bucket on a front end loader. The paving device has a pair of opposing vertically disposed and rearwardly converging side plates and a vertically adjustable screed supported between the rear end portions of the side plates. Skids carried by and projecting outwardly from the side plates support the paving device in straddling relation to a trench to be paved. The paving device moves with the bucket and relative to the front end loader in response to operation of a manually operable control system on the front end loader.

Abstract: A padding machine attachment for a vehicle is provided. When padding of a ditch for a pipeline or cable is required, the padding machine is removably attached in a position at one end of a conventional bucket loader, bulldozer, or other base machine or vehicle, whereby said attachment moves along the path of travel of the vehicle. As the vehicle moves the padding machine attachment along one side of the pipeline ditch, the padding machine attachment picks up at least a portion of a pile of excavated material placed parallel to and along the same side of the ditch and processes the excavated material into padding material for placement into the ditch for padding the pipeline or cable.

Abstract: Multifunction building machine used in civil construction sites and public works. The machine combines on a self-propelled frame, a concrete-mixer (20) with a set of tools on one side, comprising a loading power shovel (60), a grader (70) and a digging shovel (80) and on the other side a dumper (50). The concrete mixer is of the fixed container type provided with a rotary mixer (33), a hinged cover (25) being adapted to form a spout for transfering the contents from the loading shovel to the dumper.

Abstract: A submersible thrust producing implement for use in combination with an excavator, the excavator being of the type having a boom and a stick with an attachment end on the stick for attaching the implement, which boom and stick can be extended and retracted to selectively submerge the attachment end to a predetermined location in a body of water, and having a hydraulic power system for actuating the boom, the stick, and the implement.

Abstract: A vibratory compactor attachment for mechanical equipment, such as an excavator or backhoe. The attachment includes a support frame which is pivotally attached to both the boom and the tilt arms of the excavator. One end of the support frame carries a scraper blade that can be used for leveling soil prior to compaction. A drum frame is connected to the support frame and a compaction drum is mounted for rotation on the drum frame. To vibrate the drum, an exciter is mounted on the drum frame and resilient isolation mounts interconnect the support frame and the drum frame to minimize the transmission of vibration to the support frame.

Abstract: A grabbing device (14) of a type to be connected to an arm or boom of an excavating machine of the like is arranged as separate unit having coupling means for optional coupling thereof to the bucket or the like tool (33) arranged adjacent to or beyond the grabbing device. The grabbing device may be used both with the bucket attached and without same and the bucket or the like unit may be used coupled beyond the grabbing device or directly to coupling means of the arm or boom (1). Between the grabbing device and the coupling means of the arm or boom there is interconnected a rotation tilting apparatus (6) allowing swinging and tilting of the grabbing device (14) relative to the arm or boom (1) and its coupling means.

Abstract: A gravity drop hammer apparatus for mounting on the bucket attachment mechanism of a skid loader, in which at least a distal portion of the hammer apparatus is capable of dropping, under forces of gravity, from a raised position toward an impact position upon release by an operator of the skid loader, the hammer apparatus allowing for variable impact at distal locations from the skid loader. The gravity drop hammer apparatus comprises a hammer member, a mounting plate member which is pivotally attached to the hammer member for attaching the hammer member to the bucket attachment mechanism of the skid loader, and a releasable latching assembly for latching the hammer member to the mounting plate member prior to pivotally raising the hammer member to its raised position. Upon release of the releasable latching assembly, the hammer member is allowed to fall, under the forces of gravity, from the raised position to the impact position.

Abstract: An improved tractor for earth grading and soil compaction having a hydraulically operated bucket mounted on the front and including a water tank and water spray nozzle. The water spray nozzle is positioned on the bucket so that it can add water to soil as it is moved by the bucket and also can be raised and aimed by the tractor operator. This permits the tractor operator to use the water spray to wet down a load of soil in a truck.