Abstract: An agricultural implement which may be pulled by a tractor in an agricultural field for improving soil conditions, provided with the capability to sort rocks according to their sizes whereby rocks of only desired dimension range are crushed, this implement consisting of a frame carried by two wheels, a drawbar assembly for attaching the frame to a tractor, a rock-transporting tilted belt conveyor assembly provided with a ploughshares means, a pair of corrugated crush rollers, a bin for collecting stones of large dimensions, and a hydraulic power system driven by a drive shaft connected to the power take-off of a tractor.

Abstract: The invention provides extension links for lawn maintenance equipment to move the front axle forward and allow oversize wheels to be used, increasing flotation capability for soft soil while maintaining the height adjustability.

Abstract: Thermo-weldable coupling for connecting in particular at least two members made from an identical or compatible plastics material, comprising a body (1) which is of the type constituted at least partly by a thermo-fusible material compatible with the plastics material of these members and which comprises an inner wall (2) or connection surface, directly opposite the outer wall of the members, provided with an electrically conducting element (3). This electrically conducting element (3) is resilient and of non-rectilinear shape. Application to the connections of fluid-carrying pipes made from plastics material.

Abstract: A deformable plow operates off of at least one hydraulic cylinder that extends from a post on the plow frame to a guide bar positioned along the upper edge of a plastic or deformable moldboard.

Abstract: This is a machine for forming V-ditches for the irrigation of soil. The machine consists of a central frame with a two wheel carriage and plows of subassemblies. Each plow consists of a right subassembly and a left subassembly universally connected to the right and left sides respectively of the central frame. Each plow forms an acute horizontal angle with the central frame. The acute angle is fixed by the use of chains, having one part adjacent to an end attached to the central frame and another part of the chain adjacent to the opposite end, attached to the extended end of the subassembly. Each subassembly contains concavo-convex rotatable discs mounted parallel to each other on a common axle. The discs are assembled so that the concave side of the discs penetrate the soil when the machine is moved forward by a suitable draft device.

Abstract: The coupling assembly includes a first pipe and a second pipe connected by a middle sub splined to an outer sleeve. Each pipe includes a tubular body having a first axis and a threaded pin end with a second axis. The middle sub includes threaded boxes on each end with a center seal bore. The threaded boxes of the middle sub threadingly engage the pin ends of the first and second pipes. The threads on one pin are right-handed and the threads on the other pin are left-handed such that upon rotation of the middle sub and outer sleeve, the pins and boxes will threadingly engage upon the rotation in a common direction. The boxes and pin ends have a common axis. Each of the terminal ends of the first and second pipes include dogs which intermesh upon connection of the coupling for the transmission of The axes of the first and second pipes are at an angle with the common axis so as to cause an offset angle between the first pipe and the second pipe.

Abstract: A fairlead mechanism for guiding a dragline drag rope includes a support on the chassis of the dragline and a guide mechanism mounted on the support. The guide mechanism includes at least one pair of guide sheaves each having an annular groove. The guide sheaves are rotatably mounted on the support to present the grooves in facing relation to define between the sheaves a guide path through which the drag rope passes in primary frictional contact with at least one of the guide sheaves to cause the contacted guide sheave to start-stop cycle between rotating and nonrotating modes as the drag rope reciprocates during operation of the machine. The fairlead mechanism further comprises a synchronizing mechanism utilizing gears or belts for causing the pair of guide sheaves to simultaneously stop or counterrotate in unison in response to rope contact with either one of the guide sheaves to minimize wear that would be induced by scrubbing between the rope and the guide sheaves.

Abstract: This invention relates to a combination precast concrete traffic barrier element and a precast C-shaped retaining wall, and a method of constructing a traffic barrier using the element on the vertical face of the retaining wall. The barrier element is a profiled reinforced block of concrete having a bottom surface with a longitudinally extending channel therein. The traffic barrier element is supported on the retaining wall. U-shaped anchoring bars project from an interior portion of the traffic barrier element and from the top surface of the retaining wall to form an oval keyway the length of the longitudinal channel. A locking bar arrangement is inserted through the keyway in a locking relationship with the U-shaped anchoring bars. Concrete is then injected throughout the longitudinal channel and allowed to harden, thus providing a sealed and locked joint.

Abstract: A weight collar for use with a stabilizer adapted to be connected to a bow. The weight collar is removably connected to a stabilizer outer peripheral surface of the stabilizer. The weight collar includes a pad constructed of a compressible material whereby the weight collar is movable in upwardly and downwardly directions perpendicular to an axial center line of the weight collar and movable in angular directions relative to the axial center line of the weight collar while remaining attached to the weight collar. A stabilizer for use with a bow having a stabilizer tube with an opening extending therethrough forming a stabilizer chamber, the stabilizer chamber defining a stabilizer in a peripheral surface. A resonator suppressor ring is disposed in the stabilizer chamber between the first and the second ends of the stabilizer tube.

Abstract: A ground supported excavating machine of the type having a main frame and a prime mover for propelling the machine along the ground, and a boom supported from the frame that has an endless chain type digging member rotated by sprockets on a head shaft that is mounted at one end of the boom, and on a tail wheel shaft mounted at the opposed end thereof, to provide a lower run that engages the lower surface of the boom. The interior of the boom is made into a liquid container that communicates with the bottom surface of the boom, which is filled with sufficient liquid to transfer heat from the relatively hot boom lower surface to a relatively cold boom surface.

Abstract: A seed planter having a seed drop tube entrance opening (Bracket 10), connected to a seed drop tube (Bracket 12) with a planter assembly (Bracket 14) leading to seed release bracket and lever assembly (Bracket 16), attached to a flexible wire cable (Bracket 18) and bracket with cable pulley assembly (Bracket 20), utilizing compression springs with stud assembly (Bracket 22) and a hinged soil penetrator and seed release gate assembly (Bracket 24).

Abstract: The present invention relates to a device for extracting a plant, such as a weed, from the ground. The device has at least two opposed prongs, each prong tapering operatively downwardly. The tapered prongs are shaped and configured with respect to one another to in use pierce the ground and grip a plug of earth in which the plant is located between the tapered prongs. The device also has handle for moving the tapered prongs relative to the ground.

Abstract: A shielding device provides an area of protection to mechanics during initial unbolting of flanged pipe connections, to block and redirect any unexpected discharge of product away from the mechanic to the opposite side of the flange. This device has an elongated body wrapped around a pipe flange positioned in the gap area between the flanges. The body is made from an elastic material such as rubber or plastic, or a pliable material such as rubber, plastic or teflon, and is secured to the flange by fasteners on each end of the device. The device provides an area of protection greater than half the circumference of the flange, by having the elongated body securely seated in the gap of the flange over this area. The remaining area of the flange gap remains unobstructed to discharge product leaks.

Abstract: A land vehicle system for collecting crude oil and other contaminants which have been spilled on snow and ice covered surfaces includes a crawler tractor having an auger type collection and transfer mechanism mounted forwardly thereof for skimming the contaminant and a layer of snow and/or ice from the Earth's surface. The recovered oil and snow and/or ice are transported by a vacuum line to a storage and transport vehicle towed by the tractor. The storage and transport vehicle may be self-propelled and includes an onboard storage tank which is heated to melt the snow and/or ice and a separator for separating air used to transport the contaminated snow and/or ice to the tank. The tractor includes onboard prime movers for operating a vacuum pump for collecting the contaminated snow and/or ice and a prime mover for propulsion and operation of the skimming and collection mechanism.

Abstract: This invention is a multi-row full stalk sugar cane planter which utilizes a fully automatic hydraulically driven feed and distribution system to place cane stalks on the field in three or more successive rows including the row directly beneath the planter. A hydraulically driven, continuous chain, feed conveyor moves cane stalks in the semi-vertical position and in multiple columns toward a primary and optional secondary rotating distribution drum system. A pressure compensating proportioning control valve monitors pressure at the primary distribution drum motor and automatically compensates for high pressure spikes by slowing or hesitating the feed of cane stalks to the primary distribution drum. The special valve can be easily adjusted on the fly to compensate for differing field and weather conditions. A series of hydraulic secondary distribution drums are also provided to insure proper planting and placement of the cane stalks in three or more rows.

Abstract: Vehicles (12) having implements (14) are typically used to perform repetitive functions in work cycles. Advantageously, such vehicles (12) include control systems (10) for maintaining a control lever (26) in a predetermined position until an associated work cycle function is completed. The subject control (10) includes a rocker bar (46) connected to the control lever (26) and a solenoid (50) having an actuator rod (52) disposed adjacent the rocker bar (46). The control (10) energizes the solenoid (50) to hold the control lever (26) in the predetermined position in response to a position of the implement (14), a position of the control lever (26), and a desired kickout position.

Abstract: The present invention relates to clamps which frictionally and releasibly engage two axially aligned pipes to prevent forced separation of the pipes. More specifically, the present invention relates to a sewer line vent clamp assembly having a novel double circumferential ribbing for effectively gripping thin-walled polyvinylchloride (PVC) tubing, and releasibly fixing a thin-walled PVC pipe to a standard, flanged sewer trap. The present invention effectively connects a PVC vent pipe to a sewer trap without piercing or distorting the thin wall of the PVC vent pipe.

Abstract: A quick connector for fast connection of fluid carrying assemblies such as a mating tube and a fluid unit. The connector includes a connector body which houses the connector components and accepts a redundant clip which is adapted to engage an upset bead of the male tube. The redundant clip is generally L-shaped and includes a retaining head which is inserted into the connector body and is adapted to engage the upset bead, a body portion which extends along the side of the connector body and in the preferred embodiment is contoured to mate with the connector body and a base member which includes a camming edge for facilitating the insertion of the retainer head into the connector body.

Abstract: In a machine for digging a trench, in which the digging apparatus comprises an elongated boom having a movable chain around its periphery and which is lowered into the ground, the problem of dislodged boulders which heretofore would be excavated into the machine where they often damaged the conveyor belt system or became stuck, is prevented by an elongate bar or drum which is attached to the frame of the machine in close proximity to the operating chain and immediately before the boulder would otherwise enter the machine. The boulder is held there until it either breaks apart or its abraded by further action of the chain to a sufficiently small size that it can safely navigate through the machine and be expelled in the normal course.

Abstract: A variable rate fertilizer spreading apparatus for spreading a precise amount of multiple types of fertilizers upon a field based upon a location in the field. The system comprises a controller accessing a soil map indicating the type of soil for each portion of the field, several fertilizer maps storing the desired fertilizer level of each of the fertilizers stored in product bins on the tractor, and several status maps each indicating the current fertilizer level at various locations of the field to be fertilized. By accessing the speed of the tractor via a speed indicator, and ascertaining the location of the tractor in the field via a position locator, such as an LORAN or GPS system, an expert system determines the dispensing rate of each of the fertilizers based on the various maps and the position and speed indicators such that the proper dispense rate of the fertilizers from bins is set to attain the desired level of fertilizers.