Abstract: A new loader bucket vibrational sifting system for separating rock and other abrasive material from dirt extracted from a trench for a pipe line, thereby allowing the user to fill in the trench after laying the pipe with the sifted dirt eliminating contact by rock or other abrasive material with the pipeline and, thereby, preclude rusting, corrosion, or like damage. The inventive device includes a sifting structure formed to pivotally enclose a conventional loader bucket, a vibrating means secured near the pivoting end of the sifting structure for vibrating the sifting structure, and a hydraulic releasing means pivotally secured at one end to the sifting structure and pivotally secured at the opposite end to the conventional loader bucket manipulating the sifting structure to allow rocks to be released.

Abstract: The device has springs arranged diametrically opposite with respect to a shaft that is coupled to a generator of torsional vibrations. The springs are rigidly coupled between first supporting elements that rotate with the shaft and second supporting elements that are rigidly coupled to a gear system that is freely mounted on the shaft. The gear system is coupled to a motor for actuating rotation of the shaft.

Abstract: Vibratory compactors which are intended to be attached to mobile vehicles, such as a forklift truck, skid steer loader, front end loader, or the like. The vibratory compactors are capable of compacting or tamping soil, and/or other materials suitable for compacting or tamping, over extensive areas. The vibratory compactors can tilt in the pitch and roll directions, and the amount of tilt in the pitch and roll directions can be confined.

Abstract: An apparatus for use in compacting or densifying soils includes a tubular casing having a vertical longitudinal axis and an inside surface; a hollow tubular drive shaft aligned with the vertical longitudinal axis of the tubular casing and mounted for rotation therein; a drive motor for rotating the drive shaft; a carrier attached to the drive shaft for rotation therewith; and a cylindrical roller weight in rolling contact with the inside surface of the tubular casing. The carrier engages the roller weight for rotation about the vertical longitudinal axis of the tubular casing. The centrifugal force resulting from rotation of the roller weight is resisted by the tubular casing thereby causing vibration thereof.

Abstract: A sod harvesting apparatus (10) is disclosed including a cut-off device (14), a cutting unit (16) and a roll-up and core carrying device (18) mounted to a tractor (12). The cut-off device (14) includes an H-shaped slide (20) including a blade (26) pivotably attached thereto, slideably movable in tubes (30) from a cutting position to a raised position against the bias of springs (32) in the tubes (30) by a hydraulic cylinder (36), and latched in the raised position by a mechanism (38). The cutting unit (16) includes a blade assembly (66) pivotably mounted to a frame (52) and vibrated at a high frequency and low amplitude by vibrating devices (84) mounted on the frame (70) of the blade assembly (66). A roller drum (90) extends between first and second lever arms (92) pivotably mounted to the frame (52) and pivoted by electric actuators (96). The roll-up device (18) includes first and second arms (110,112) carrying cone-shaped spindles (120) pivotably mounted to the opposite ends of a bar (114).

Abstract: A vibratory compactor mounts onto the loader arms of a skid steer, and includes a freely turning packing wheel that is vibrated at a desired frequency and intensity. The vibrator and the packing wheel are mounted onto a subframe which in turn is mounted through isolation mounts back to a main frame that attaches to a skid steer loader so that the vibrations generated are not transferred at substantial levels back to the skid steer loader. The compactor includes a blade member that will move loose dirt into a trench that is being compacted by the packing wheel. The mounting for the packing wheel also can be adjusted to tilt the plane of the wheel, and the wheel can be moved laterally as well, to position the packing wheel close to fences or walls.

Abstract: A cutter, device and cutting method utilizing the same including cutter blades which work soil and wood material and which are arranged on a cutter drum to rotate and by-pass a counter blade. The device includes a tamping drum which is displaceable in relation to a frame of the cutter device by an actuator.

Abstract: A vibratory cable plow assembly including a frame assembly for connecting a plow blade to a frame of a prime mover. The frame assembly supports a vibrating mechanism or shaker that is adapted to impart vibratory movements to the plow blade. The frame assembly includes a lower support that extends rearwardly from its pivotal connection to the frame of the prime mover. The lower support mounts a blade supporting frame for rocking movement about a generally horizontal pivot mechanism. The blade supporting frame is mounted toward a distal end of the lower support intermediate its free ends and has the plow blade attached to a free end thereof. The vibratory mechanism is mounted on the blade supporting frame. An extendable/retractable driver extends about the lower support and is pivotally connected between the frame of the prime mover and the other free end of the blade supporting frame. An elastomeric bearing assembly isolates the blade supporting frame from transferring vibrations to the prime mover.

Abstract: A backfiller and tamper unit (10) is disclosed which is a self contained unit that acts to both backfill and compact soil into a trench for complete restoration. The unit includes a tractor (12) which mounts a vibrator and tamping wheel assembly (14) and a backfill auger assembly (16). The vibrator and tamping wheel assembly (14) is mounted on a mast (50) which is pivotally secured to the tractor for limited arcuate motion from vertical. This permits the mast to be tilted so that the compaction force of the vibrator and tamping wheel assembly is most effectively directed to compact the soil in the trench. The vibrator and tamping wheel assembly is free floating on the mast which isolates the tractor from vibration generated by the vibrator and tamping wheel assembly and provides greater compaction efficiency. Further, the vibrator and tamping wheel assembly can be lifted vertically on the mast by a lift mechanism (62) for storage.

Abstract: A sod harvesting apparatus (10) is disclosed including a cut-off device (14), a cutting unit (16) and a roll-up and core carrying device (18) mounted to a tractor (12). The cut-off device (14) includes an H-shaped slide (20) including a blade (26) pivotably attached thereto, slideably movable in tubes (30) from a cutting position to a raised position against the bias of springs (32) in the tubes (30) by a hydraulic cylinder (36), and latched in the raised position by a mechanism (38). The cutting unit (16) includes a blade assembly (66) pivotably mounted to a frame (52) and vibrated at a high frequency and low amplitude by vibrating devices (84) mounted on the frame (70) of the blade assembly (66). A roller drum (90) extends between first and second lever arms (92) pivotably mounted to the frame (52) and pivoted by electric actuators (96). The roll-up device (18) includes first and second arms (110,112) carrying cone-shaped spindles (120) pivotably mounted to the opposite ends of a bar (114).

Abstract: A slitting or tenching tool is described comprising a blade adapted to be lowered vertically into the soil and pulled therethrough so as to define a slit or trench having a depth determined by the mean depth to which the blade penetrates the soil, in which a vibrator causes the blade to vibrate at least in a generally up and down manner at the same time as it is moved in a forward direction. A second blade may be provided which is oscillated in a backwards and forwards manner. The second blade includes wings at its lower end to form a horizontal slit which communicates with the vertical trench or slit formed by the first blade. The second blade may be hollow so that finely divided particulate material maybe dispensed therethrough into the trench for backfilling. A pipe or cable dispensing leg may be associated with the blades or situated between them. A tape may be fed into the horizontal slit formed by the second blade.

Abstract: A machine for levelling a surface has ground engaging levelling members pivotally mounted on a main frame for back and forth vibratory or oscillatory motion relative to the main frame in a normal direction of travel of the machine. Each levelling member has a longitudinal axis which extends laterally with respect to the normal direction of travel of the machine and there is an eccentric drive for providing the back and forth motion which may be connected to a power takeoff shaft of a tractor.

Abstract: Disclosed are improvements relating to injection of water-absorbent polymers, including a blend containing fine granules, using one or more air-blown, plowblade applicators. The process creates a "blanket" of moisture-retaining particles for the plant roots. A further aspect of the invention includes drawing a plowblade through the soil at an appropriate shallow angle and speed to establish a wave in the soil, together with the use of a deflector and control over the air pressure, all of which maximizes diffusion and distribution of the injected particles.

Abstract: The plow apparatus has plow blades to break up the soil in the plowed field. The broken up soil is scooped up with scooper blades by the forward motion of the plow apparatus and then conveyed to rotating tillers. The tillers break up the soil into smaller clumps. The tilled soil is then exposed to acoustical energy provided by acoustical transducers. The acoustical energy is of a sufficiently high intensity so as to kill or destroy weed seeds and insect larvae in the soil. The soil is then returned to the ground.

Abstract: The rapid attachments of the carrier are identical to those of the vibrator. The attachments of the corresponding tool carriers or tools are also identical for enabling thereby an entire interchangeability of all the elements between themselves. Adjusting devices are provided to adjust the resiliency amplitude of the dampers.

Abstract: A soil loosening device connected with a pulling means provides for an intensive deep loosening of compact mainly agriculturally used soils and has for each loosening furrow two oppositely driven teeth in tandem arrangement, equipped with blades which form a joint blade surface subdivided into blade partial surfaces wherein the forward partial blade surface and the rear partial blade surface perform alternately with the forward surface first cutting the soil and the rear surface then lifting the soil which has been cut.

Abstract: An air cushion mount system is provided between a backhoe system and a vibrator-compactor system for tampering material in a trench which is being filled. This air cushion mount consists of a tire having a wheel rim positioned on the inside rim of a steel pipe having an annular peripheral flange. A flange plate is coupled to the annular peripheral flange of the steel pipe so that the tire can be placed in operative condition or removed from operative condition. The elements of the backhoe are coupled to flanges fixed to the wheel hub. The cushion air mount is coupled by a plate member to the vibrator, and the latter in turn is affixed to a compactor for tampering material in a trench being filled with the same.

Abstract: An apparatus wherein a platform mounts a drive motor that directs rotary motion to an eccentrically arranged crank pin to effect oscillating motion to a blade member directed downwardly relative to the platform. The blade includes a foot member that is formed with a conically tapered forward end and a reduced cylindrical rear end to permit securement of a conduit hose to the rear end to pull the conduit hose in a conduit laying procedure.

Abstract: A vibratory apparatus includes an outer member with a central opening. An inner member is within the opening of the outer member. There are two sets of bearings between the outer member and the inner member for permitting relative rotation therebetween about an axis. The two sets of bearings are spaced apart along the axis, each having an inner race and an outer race. The inner races are slidably mounted on the inner member. A portion of the outer member is disposed between the outer races so as to hold the outer races a first distance apart and so the inner races are held a second distance apart when the inner member and outer member are unloaded. Each of the sets of bearings transfers from the inner member to the outer member those forces acting along the axis which are directed towards the other set of bearings only. There is a spacer disposed between the inner races.

Abstract: Shellfish harvesting devices including a frame to move over the submarine surface of a shellfish growing substrate and a plurality of tines extending down from it for penetration into the substrate, are improved by addition of a vibrator to impart a vibratory motion to the tines, but not appreciably vibrate other parts of the frame, e.g., runners. The harvesting of clams or like bivalves with the tines vibrating while being pulled through the substrate mitigates environmental damage to the shellfish growing area and reduces the energy required to pull the devices forward on the substrate.

Abstract: A cutting machine for cutting trenches in the ground, including a flat bottom face portion for supporting a pair of motor blocks; two motor blocks, with parallel axes, adapted to mount half-drum cutters; each motor block comprising a central vertical keel projecting downwardly from a horizontal top plate; connection means securing each motor block top plate to said bottom face; the inner edge of each top plate being provided with a beveled surface; an abutment member having parallel beveled edges complementary in shape to the beveled edge of each top plate; means mounting said abutment member to the central portions of said bottom surface; locking means urging the beveled edge of each top plate against the beveled edges of said abutment member.

Abstract: Impact buckets are useful, for example, in fracturing rock and other hard material which is to be excavated. Known systems using vibrating mechanisms which are mechanically coupled to a cutting edge assembly do not produce forces high enough to efficiently fracture the rock or other hard material and send destructive vibration forces to the base vehicle. The subject impact bucket mechanism uses an impact hammer which is impact coupled to a cutting edge assembly to fracture rock and other hard material. This results in a force controlled system in which displacement varies with material resistance. The force levels achieved by the impact coupled system are higher than the vibrating system. Thus, the disclosed impact bucket mechanism can produce higher force levels which can more efficiently fracture the rock or the other hard material without sending destructive vibration to the base machine.

Abstract: A narrow self-propelled trench soil compactor has a vibratory frame assembly connected in a towing relation to a mobile frame having steerable front wheels. The vibratory frame assembly is pivotally connected to the mobile frame for vibratory up and down movement independently of the mobile frame. A soil compaction wheel is rotatably supported at the free end of the frame assembly for movement to a lowered operating position and is power driven to function as the propulsion means for the machine. When the compaction wheel is in an elevated or non-operating position, the machine is attachable to a towing tractor for transportation purposes.

Abstract: A vibratory plow assembly which provides improved vibratory plowing through the mounting of the plow blade and maneuverability of the assembly. The assembly includes a forward frame member, a rearward frame member, and spaced apart link members pivotally connecting the frame members to permit relative vertical movement. A plow blade and gage wheel holder is pivotally mounted to the rearward frame member which also includes a vibrator for the plow blade. The forward frame member is pivotally mounted to a vehicle for movement about a vertical axis, and the plow blade holder is pivotally mounted to the rearward frame member for movement about a vertical axis. Further, the assembly is constructed such that the plow blade moves into a tucked relationship with respect to the connecting links between the frame members, thereby permitting loading and unloading of the plow assembly without the need to remove the plow blade.

Abstract: A vibratory plow assembly for improving the mounting of the plow blade and optimally locating the gage wheels. The assembly includes a plow blade and gage wheel holder that is pivotally mounted to a vibrator frame. The holder includes hollow bearing members for mounting the gage wheels and spaced apart hanger arms for advantageously assisting in the mounting of the plow blade. The plow blade is mounted between the hanger arms such that its upper mounting location is supported between opposed slots in the hanger arms and its lower mounting location is supported between the opposed hollow bearing members.

Abstract: Impact rippers are useful in fracturing rocks, concrete, etc. which cannot be fractured by ripping alone. Operating the impactor of the impact ripper without sufficient loading applied to the ripper tip is detrimental to the life of the impact ripper. The subject control system includes a pilot operated selector valve which blocks pressurized fluid from the impactor in the absence of pilot fluid thereto and is shifted by pressurized pilot fluid to a position to direct pressurized fluid to the impactor. A pressure switch is rendered conductive when the fluid pressure generated in a hydraulic cylinder exceeds a predetermined value due to loading on the ripper tip. This actuates a solenoid valve to direct pressurized pilot fluid to the selector valve. Thus the impactor is activated only when the loading on the ripper tip is above a preselected threshold and is automatically deactivated when the loading on the ripper tip drops below the preselected threshold.

Abstract: An apparatus which can cultivate rice and other crops, comprising a frame having a plurality of transversely extending spaced cultivator bars, each of the bars having a plurality of spaced elongated soil working members extending generally vertically downward of said bars. The apparatus is pulled over the planted area to remove the weed plants.

Abstract: A compaction roller machinery assembly (10) suspended from the rear of a bulldozer (12) for compacting surfaces such as sand. The assembly (10) includes a vehicle (12) having a power plant for driving the assembly, a vibratory compaction roller (18) extending in a cantilevered fashion from a pivot axis on the vehicle for compacting a surface and a roller lift assembly (20) mounted to the vehicle (12) and interconnecting the vibratory compaction roller (18) and the vehicle (12) raising and lowering the vibratory compaction roller (18) about the pivot axis between a raised position and a surface engaged position. The vibratory compaction roller (18) includes a roller (22) for rolling and compacting surfaces and a vibration producing mechanism for vibrating the roller to facilitate the compaction of the surfaces.

Abstract: A vibratory plow including a cutter assembly which slices the ground covering and breaks the sod ahead of the cable-laying plow blade. The plow assembly includes a blade holder that is pivotally mounted to a vibrator frame. A mounting member attaches the cutting blade of the cutter assembly to the blade holder. The cutting blade is polygonal in shape and includes a plurality of mounting holes located in polygonal patterns. The mounting member includes a complementary set of mounting holes also arranged in a polygonal pattern. The present construction permits the cutting blade to be moved to a plurality of cutting positions rather than replacing the cutter after a cutting edge is worn.

Abstract: Linkage apparatus for connecting a use device, preferably a vibrating cable plow, to a ground-engaging vehicle. The linkage apparatus comprises a first arm member having a first mechanism for connecting the first end to the vehicle, a second arm member having a second mechanism for connecting the second end to the use device, a third mechanism for pivotally connecting the first and second arm members, and a mechanism for dampening vibrations between the first and second arm members perferably including resilient members such as air cushion bags.

Abstract: A tamper attachment for a vibratory plow vehicle of the type wherein a vibrator imparts vibrations to a plow which is used to plow a narrow, relatively shallow furrow to receive a line or cable. The tamper attachment comprises attachment means for attaching the tamper to the vibrating means of the plow and a housing fixedly secured to the attachment means. A tamper foot comprising a cylindrical roller is positioned below the housing in ground contacting relation for rapidly impacting the ground in response to vibrations transmitted by the vibratory means for closing and tamping the furrow opened by the vibratory plow. A pair of spaced apart, spring loaded tamper foot guide arms are connected to the tamper foot and are slidably mounted in the housing for transmitting rapid up and down movement from the vibrating means through the housing to the tamper foot. A tamper adjustment arm is connected to the tamper foot and mounted in the housing for limiting reciprocatory movement of the tamper foot guide arms.

Abstract: Tilling apparatus, particularly for deep ripping of the soil, adapted to be towed by a tractor having teeth for penetrating the ground, each tooth being hollow, having an unbalanced rotor housed therein adjacent its lower end, a motor mounted on the side of the tooth adjacent its upper end, and drive means housed in the tooth driven by the motor and operable to drive the rotor for causing vibration of the lower end portion of the tooth.

Abstract: An improved version of applicant's prior bulldozer mold board assemblies is disclosed. Such prior assemblies include a mold board, a reciprocating cutter blade along the lower edge of the mold board, and a resonant beam mounted aft of the mold board.The vibration of the beam results in a reciprocating force at the node, which is undesirable in applicant's prior device. The present invention improves on applicant's former construction by pivotably supporting the mold board so that the mold board is pivotable about a transverse axis. The resonant beam is connected at its central node to the mold board. In this fashion, the reciprocating transverse forces on the node of the resonant beam are transmitted to the pivotably mounted mold board to agitate the material in contact therewith.

Abstract: A control apparatus for a pavement breaker which includes a carriage, a lifting means for raising and lowering an impact arm which impact arm includes a tool for impacting a surface, mounted on one end and an oscillating member mounted on the other end. The control apparatus basically includes electrical apparatus for measuring the total weight being applied through the lifting means to the tool when it is in contact with the surface to be impacted and apparatus for limiting the amount of horizontal force that can be applied to the impact arm during the process of impacting the surface of the earth. A processor receives an electrical signal from the electrical apparatus which is applied to the lift control apparatus in a manner to stabilize the lifting force. A signal output is generated by the horizontal force limiting apparatus when a predetermined amount of horizontal force is received by the electrical device.

Abstract: An improved vehicle-mounted lifting apparatus for a vibratory device. The apparatus includes bearings in which a principal pivot shaft is journaled, a lifting link and at least one center-bonded joint spaced along and nonrotatably mounted on the pivot shaft, a lift cylinder secured to the vehicle and extending to the lifting link, and a rigid arm extending from each center-bonded joint to a support for the vibratory device. Although a compact simplified lifting structure, excellent vibratory isolation to protect the lift cylinder is provided.

Abstract: A recoil damper (10) for a reciprocating member (12) mounted in a housing (24) includes a annular ring (38,138) mounted adjacent a shoulder (28) formed on the reciprocation member, the annular ring (38,138) mounted in a viscous fluid interior of the housing. The annular ring (38,138) cooperates with the shoulder (28) of the reciprocating member (12) to allow a relatively free flow of the viscous fluid around the shoulder (28) upon motion of the reciprocating member (12) in one direction and to restrict flow of the viscous fluid around the shoulder (28) upon motion of the reciprocating member (12) in the other opposite direction.

Abstract: Apparatus for processing of soil by vibratory sifting to remove rocks and other objects embedded in the soil provides a scoop for use with a backhoe or crawler tractor having a positionable boom. The scoop includes an elongated main frame to which are secured arcuately configured evenly spaced tines which extend downwardly from the main frame with sharp distal ends for readily penetrating the soil. By pivot arrangement, the main frame is secured to an outer end of the boom for placement upon the surface, the tines extending into the soil for processing. A hydraulic vibrator motor is coupled to the tines for causing vibratory sifting by the tines of the soil upon the main frame being pulled across the surface. Such operation sifts rocks and other objects from the soil. The apparatus is especially useful for processing the root medium after strip mining.

Abstract: The machine comprises a vibrator (26) for applying vibratory forces, and a member (30) for applying non-vibratory forces to a vibratory tool carrier (52) to which is removably attached a working tool, e.g. a bucket (14). The vibrator includes an eccentric (50) and is driven by a drive (36-38). The tool carrier incorporates a first mounting (at 50) for its connection to the vibrator and a second mounting (34) for its connection to the member. The second mounting enables reciprocation of the tool carrier at the point of its attachment to the second mounting when the vibrator is in operation. The first and second mountings are spaced from each other in the direction of the reciprocation.

Abstract: A rock breaker tool for use with earth working apparatus is disclosed. The tool includes a ripper tooth employed with a hammer and anvil arrangement located above the upper portion of the tooth. The present invention is so constructed as to minimize the transfer of force directly from the hammer to the hydraulic cylinders of the earth working apparatus. The invention may be employed with various types of earth working apparatus, including backhoes, bulldozers and ripper buckets.

Abstract: A vibratory plow blade having a tapered leading edge, a trailing edge, and a tapered bottom edge wherein the plow blade is configured such that its longitudinal axis regresses or is arcuately angled away from the towing vehicle. The tapered leading edge of the plow blade includes an upper straight cutting section and a plurality of forward angled serrations along its length which provide for downward and upward cutting and fracturing of the soil with each successive stroke of the blade during vibratory action. The guide chute for the cable is mounted to the trailing edge at a substantial bend radius for reducing the flexing required of the cable and reducing the weight of the guide chute. The construction permits close proximity between the plow blade and guide chute for providing increased chute protection and a reduction in the chute frictional drag thereby leaving more vibrational energy for soil displacement.

Abstract: Method and apparatus for compacting a layer of material using a compacting machine having at least one drum which is rolled over the layer; the material layer is acted on by gravitational force of the roller and an oscillating force. The latter is the result of applying a rapidly substantially alternating torque to the drum about its axis. The direction of action of the torque is reversed with a high frequency in relation to the frequency with which the direction of travel of the compacting unit is reversed. The invention also embraces means for executing the method wherein the torque on the drum is provided by at least two synchronously operating, rotating eccentric means spaced from the shaft of the drum, and which are adapted such that the forces caused by their synchronous movement can substantially neutralize each other radially to the drum and co-act to form a pure torque on the drum about its shaft.

Abstract: A sod cutting unit supports a vibrating sod-cutting blade on a pivot under a platform and driving and control mechanism above the platform, while drawing the platform across a field on a support which allows the platform to pivot around a horizontal axis parallel to the direction of motion across the field. A multi-unit machine supports two or more units from the same draft suspension, an intermediate unit of three being additionally movable up-and-down relative to the outer units. Each unit pivots independent of all the others.

Abstract: An improved vibration proof suspension type vibrating roller is disclosed which includes a rolling roller rotatably supported in a frame structure, a hydraulic motor for rotating the rolling roller and a hydraulic motor for rotating a vibration generating shaft with an eccentric mass fixedly mounted thereon. A plurality of vibration proof members made of elastic material such as rubber or the like are fixedly secured to both the sides of the frame structure on the inner surface thereof. A hydraulic motor unit including a hydraulic motor for rotating the rolling roller, a plate axle and associated components is fixedly secured to one half member of vibration proof members, while a hydraulic motor unit including a hydraulic motor for rotating the vibration generating shaft, a support plate and associated components is fixedly secured to the other half number of vibration proof members.

Abstract: The blade adjustment device of the present invention is used with a sod cutting machine comprising a sod cutting blade, a sod roller positioned in close spaced relation to the blade for cooperating with the blade to sever the sod from the ground, a blade supporting frame connected to the blade and movably mounted for movement toward and away from the roller. The adjustment device comprises a power actuator, and a linkage mechanism pivotally interconnecting the power actuator to the blade supporting frame for causing the blade supporting frame to move toward and away from the roller. The linkage includes an input end connected to the power means and an output end connected to the blade supporting frame for moving the blade supporting frame in response to actuation of the power actuator. The linkage mechanism reduces the distance of movement, so that the input end moves a greater distance than the output end.

Abstract: A reciprocating type of bulldozer blade which blade is mounted on a telescoping member for telescoping engagement with a support arm carried on the bulldozer proper, the improvement including a flywheel disposed on a powered shaft which is rotated, the rotating powered shaft operatively connected to a bulldozer blade through a cam system to provide reciprocal movement of the blade in response to powered shaft rotation. The flywheel provides a more uniform shaft rotation and therefore a greater force on the bulldozer blade as it cycles back and forth. In addition, the relatively telescoping support parts for the blade have provided thereon a supporting instrumentality connected to a stationary portion of the telescoping assembly, and a cylinder having a spring device on the moving reciprocatory part, a shaft extending therebetween so that in combination with the flywheel, additional force is provided on the bulldozer blade by cyclically loading and unloading the spring, which works against the shaft.

Abstract: A vibratory plow blade which increases the efficiency of the plowing action. The tapered leading edge of the plow blade includes a plurality of saw-like teeth or serrations. The uppermost serration acts as a soil cutter as the plow blade moves along the ground slot formed by the blade during vibration, thereby relieving surface tension created by packed soil or sod. The intermediate serration provides an upward fracturing of the subsoil with each successive up stroke from the vibratory action. This fracturing reduces the amount of work required to move the plow blade through the soil in the direction of plowing. The lower serration also provides an upward fracturing of the deep subsoil directly above the serration. Further, the upper leading edge of the lower serration is sloped to a greater extent than the upper leading edges of the other serrations to provide blade pull for maintaining the proper plowing depth during the plowing operation.

Abstract: A road compacting drum is equipped with a dual amplitude, rotational, vibratory mechanism. A shaft rotatably mounted on the drum supports eccentric weights. Casings secured to the shaft adjacent the weights have chambers accommodating fluent mass. The fluent mass comprise metal members, as steel balls, shot or liquid metal, that move to a first location in the chamber upon rotation of the shaft in one direction to increase the amplitude of the vibration of the shaft and drum. The fluent mass flows to a second location in the chamber in response to rotation of the shaft in a direction opposite the one direction to generally balance the shaft to reduce the amplitude of vibration of the shaft and drum.

Abstract: An improved mechanism for generating vibrations in the horizontal plane for a ground compacting machine is disclosed. At least a rotary shaft with an eccentric mass mounted for generating required vibrations is rotatably supported within the rolling wheel. The rotary shaft adapted to be rotated by a hydraulic motor assumes the position where its center line of rotation is located on a linear line radially extending from the center line of rotation of the rolling wheel. Rotation of the hydraulic motor is usually transmitted to the rotary shaft for the eccentric mass via bevel gears. Typically, an opposing pair of rotary shafts are disposed opposite to one another relative to the center line of rotation of the rolling wheel. Three or more rotary shafts may be disposed in such a manner that their eccentric masses are distributed so as to assure good weight balance.

Abstract: The unit comprises a power-driven horizontal rotor including a shaft carrying radially mounted tool sets comprising hammers swivel-mounted at at least an intermediate point of the major dimension thereof. Upstream of the shaft there is a serrated blade subjected to oscillatory movements in a normal direction to the plane of lay thereof, the rotor and blade being carried on a frame the rearward end whereof is mounted on two wheels interconnected by an axle adapted to be raised from and lowered onto the frame.

Abstract: Disclosed herein is a powered cultivating tool or the like which includes a prime mover disposed within a housing, an output shaft extending from .[.said.]. .Iadd.the .Iaddend.housing having a pinion fixed thereto, .[.said.]. .Iadd.such .Iaddend.pinion being placed in meshing engagement with a gear having a first roller thereon offset from the axis of rotation of the gear which engages a cam follower operatively connected to a cultivating implement such as a tine so that the implement displays an oscillatory pendulum-like motion about a vertical radial line extending from an axis rotation of the gear.