Abstract: The disclosed vibratory cable plot has two in line plow blades supported on a trailer having a transverse horizontal pivot and a vibrator which imparts a rocking oscillatory motion to the trailer and the blades. The first blade is preferably shorter, but thicker than the second trailing blade. The second blade is longer than the first blade and has a trailing cable guide guiding flexible cable, pipe and the like into the slot cut by the blades. The double blade assembly is more efficient than a single blade and reduces blade wear.

Abstract: A machine adapted to lay a utility cable underground and characterized by leaving no substantial and lasting scar at the surface of the ground, by laying the cable at a uniform depth, by being usable even over the softest ground without leaving any lasting imprint, and by using a reciprocative cutting action avoiding impact vibrations and the annoyance thereof. This machine comprises a body mounted on runners, a cutter in the form of a lever pivoted to the body about a transverse axis and having a cutting edge extending endwise from the body below the runners, a camshaft and motor actuating the cutter, a cable guide guiding the cable downwardly coextensive with the cutting edge, ground-engaging wheels, and a handle carrying the wheels and articulated to select one of three distinct elevation of the wheels relative to the body of the machine.

Abstract: A vibratory plow particularly suitable for laying cable, pipe and the like underground. The plow blade is pivotally mounted on a frame assembly on a resilient mounting. The frame assembly includes a U-shaped yoke pivotally mounted at opposite ends to the frame assembly. A vibrator is mounted on the yoke and the yoke is pivotally connected to the blade by a link which is pivotally connected at opposed ends to the blade and the yoke. The blade is thereby vibrated in an orbital plowing motion as the blade is drawn through the earth by a suitable vehicle.

Abstract: A trenching apparatus of a type for use particularly in hard or discontinuous soils. First and second triangular members, having digging teeth connected to the leading edges thereof, are connected to the housing by three crank assemblies. One of the crank assemblies is coupled to the motor for turning the crank and thereby oscillating the first and second members. One of the crank assemblies is a timing crank for establishing the proper relative movement between the first and second members so that the orbital motion of the first and second members are 180.degree. out of phase.

Abstract: An earth working apparatus having a ripper for loosening earth and the like. An impact member is associated with the ripper to provide a cushioned transfer of impact force for improved earth working operation.

Abstract: This invention relates to earth processing equipment and, more particularly, to a scarifier or plow apparatus capable of deep soil penetration which has an attached earth fragmentation assembly. The apparatus comprises a frame mounting on its forward end, a scarifier assembly which is adjustable from the frame to provide varying soil penetration. An earth fragmentation assembly is permanently affixed to the frame immediately behind the scarifier and comprises a scoop bucket with internal, shaft-mounted rotatable arms or cudgelers for fragmentizing earth passing interiorly of the fragmentation assembly and with a fixed bottom support for the soil within the scoop bucket. This apparatus is particularly useful for the single pass processing of compacted agricultural beds.

Abstract: A cultivating machine having a body, at least one wheel supporting the body during normal use, and one or more soil-working blades. The blade(s) may be either serrated or generally V-shaped so that it can penetrate the soil and loosen it. The blade(s) is preferably rounded, so that it loosens the soil and pulls weeds out by the roots rather than cutting the tops of the weeds off and leaving the bottoms of the weeds in the ground to regrow, and the blade or at least one of the blades preferably projects laterally beyond the body of the cultivator on at least one side so that the cultivator may be used to loosen the soil and to pull out weeds underneath overhanging leaves of desirable plants without damaging the desirable plants by contact with moving parts of the cultivator. A motor may be mounted on the body and operatively connected to either or both of the wheel and the blades.

Abstract: A slit trenching and cable laying device includes: a frame held above the ground by a support, preferably adjustable to various levels above the ground, a plow for digging a slit trench and laying a cable or line therein, the plow being mounted so as to be relatively movable with respect to the frame, a mechanism for imparting a digging motion to the plow, preferably, adjustable to impart a variable motion and being adapted to be driven by a vehicle towing the device, and another mechanism for imparting a motion to the plow for reducing surface contact and resultant drag between the plow and the sides of the trench, preferably adjustable for varying the magnitude of the motion as conditions warrant.

Abstract: An apparatus for facilitating penetration of a ground engaging member, such as a plowshare or fence post, into the ground is disclosed which employs a vibrator having a rotatable mass eccentrically mounted to provide a cyclical motion to the member being caused to penetrate the ground. The apparatus is adapted to independently vary the amplitude and frequency of the cyclical motion imparted to the ground engaging member to adjust for varying soil conditions. One embodiment employs a pair of interconnected balanced vibrators which produce a resultant force acting generally along the longitudinal axis of the ground engaging member.

Abstract: A plow assembly for cutting a slit in the ground and simultaneously laying a cable in the slit as the propelling vehicle moves over the ground. The plow assembly has a shaker case containing a pair of counter-rotating eccentric weights for providing a vibratory action to the plow, additional weight means are located rearwardly of the plow and plow frame so as to reduce the amplitude of vibration at the rear end of the assembly, and the assembly also has elastomeric isolation mounts for the shaker case on the plow frame so that the resulting action of all the components is such that the plow blade pivots about a pivot point located rearwardly of the assembly and in a particularly efficient arcuate cutting movement.

Abstract: Gardening tool. A blade adapted to work the ground constitutes one side of a frame which is pivotably mounted on the housing of the tool about a shaft forming the opposite side of the frame. Drive elements within the housing are connected to a third side of the frame through transmission elements within the housing so as to impart to the blade a continuous pivotal vibratory movement. A detachable handle connected to the housing enables the latter to be handled. A cooling fan in the housing discharges air through orifices in the upper end of the handle.

Abstract: A cable guiding chute suitable for attachment to a ground slitting blade to dispense a plurality of cables includes a pair of generally vertical sidewall members, forward and trailing webs extending between the sidewall members to define a cable passageway, and a plurality of generally J-shaped separators extending the length of the passageway to define a plurality of cable guiding conduits. One of the sidewall members is releaseably secured to the forward and trailing webs and may be removed to expose the cable guiding conduits for lateral insertion or removal of cables. The forward web member includes a flange which is received within a plurality of retainer clips carried by the removable sidewall for stabilizing the forward end of the removable sidewall against lateral displacement. A channel-shaped latch is connected to the trailing edge of the removable sidewall and receives a locking bar member pivotally mounted on the trailing web for securing the removable sidewall in a cable dispensing position.