Abstract: A winch assembly (11) comprises a rotary input shaft (15) connected to a pair of first and second gears (21,22) for rotating the gears in opposite directions. First and second friction clutches (23,24) are adapted to selectively connect a rotary output shaft (20) with the first and second gears, respectively, for establishing a drive connection from the input shaft to the output shaft during the reel-out (RO) and reel-in (RI) modes of operation of the winch assembly. An overrunning one-way clutch (33) is interconnected between the first and second gears for normally permitting the gears to rotate in opposite directions, but will lock-up when a torque load imposed on the output shaft during the reel-in mode of operation exceeds the input torque to the winch assembly by the input shaft.

Abstract: An engine valve comprises an elongated stem having a head secured on an end thereof. A tube is disposed in the stem to terminate at an outlet to communicate a liquid coolant, such as oil, to an annular chamber defined in the head. An agitator ring is loosely mounted in the chamber for moving therein during valve operation. A plurality of circumferentially disposed and radially extending ribs are preferably secured between the head and a cap secured thereon to define a plurality of inlet and outlet passageways therebetween.

Abstract: The invention is concerned with novel apparatus and process for converting crude carbon such as coal, carbonaceous wastes and the like into valuable chemical products and/or energy. A mass of solid crude carbonaceous fuel is fed into a high temperature liquid which acts as a solvent for carbon at a temperature sufficient to carbonize the mass and by which the carbon is separated from impurities. Volatile fractions are removed from the mass which acts as a distillation column. Air, or another oxygen source, is introduced into the reactor wherein it reacts with the carbon dissolved in the liquid therein, which may preferably be iron to form a hot fuel gas. The hot fuel gas is then used to produce useful energy, generally via a stepwise procedure.

Abstract: A construction vehicle has pairs of tandem roadwheels on each side thereof. Each of the roadwheels is mounted to the vehicle via a parallelogram linkage. The roadwheels are each driven by drives universally mounted to transmit power from differentials thereto. Interconnected hydraulic cylinders act between the frame and each wheel to adjust the relative vertical positioning therebetween and provide equal tire loading on the tires on each side.

Abstract: A construction vehicle has pairs of tandem roadwheels on each side thereof. The pairs of tandem roadwheels are simultaneously coordinatively anglable relative to the frame to accomplish steering thereof. The roadwheels are mounted to strut cylinders which act as kingpins therefor. A linkage is provided that allows for simultaneous coordinative angling of the roadwheels through pivoting at the kingpins.

Abstract: A support assembly, for an equalizer bar, integrally welded to a main frame of a track-type front loader vehicle. The assembly includes a first central U-shaped plate having a base and first and second legs extending forwardly from the base, a second L-shaped plate having a third leg welded to one side of the base and a fourth leg extending forwardly from the third leg, a third L-shaped plate having a fifth leg welded to the other side of the base and a sixth leg extending forwardly from the fifth leg, a fourth plate welded to the front of the first, the second, the fourth and the sixth legs, a fifth L-shaped plate having a seventh leg welded to the top of the first, the second, the third and the fourth plates, and an eighth leg extending downwardly from the seventh leg and spaced from the base, and a pivot pin coupled to the first, fourth and fifth plates through bosses for holding the equalizer bar in the space between the eighth leg and the base.

Abstract: A shovel linkage for a hydraulic excavator includes boom rails having pivot means in one end for pivotal connection to an excavator and cross tubes extending between the rails near the pivot means and having pivot joints provided thereon for connection of actuating cylinders for the linkage in line with the cross tube and close to the pivot means whereby forces imparted to the linkage by the actuating cylinders will be directly through the center of the cross tube and very near the boom rail pivot means, minimizing bending moments in the linkage.The pivot joint includes a flat tab member provided on the cross tube and projecting outwardly along a diameter thereof, and a pin and ball connecting the bifurcated end of a hydraulic cylinder to the tab for limited rotation thereof. The pin is disposed substantially normal to the plane of the boom rails for unimpeded insertion and removal thereof.

Abstract: A hydraulic circuit adjusts an infinitely variable drive ratio hydro-mechanical transmission in response to movements of operators speed and torque controls to enable precise selection of the wheel torque of a vehicle and selective variation of ground speed by changing drive ratio while the driving engine operates at a constant engine speed. Control fluid from a pump driven by the engine is used to generate a displacement signal for the hydrostatic section of the transmission. The displacement signal is limited to a value determined by an operators maximum speed selector while being modulated within that limit by means which compare actual output torque with a selected torque signal from the operators controls and which vary the displacement signal to conform output torque with that called for by the operator. The displacement signal is further modified when necessary by engine underspeed and overspeed sensing means responsive to variations in control fluid flow from the pump.

Abstract: Apparatus for gauging the wear of a toothed sprocket includes a flat body defining a plurality of peaks about the periphery thereof. A pair of such peaks are brought into contact with adjacent flanks of adjacent teeth of the sprocket, and another peak, intermediate the pair of peaks, is brought adjacent the root area of the sprocket between such adjacent flanks, so that wear of a sprocket in such area can be observed.

Abstract: A simple, inexpensive sprinkler head is disclosed which may be adjusted to discharge a fluid in a full circular pattern of variable radius or in a variable size segment of such circular pattern of variable radius. The structure of the sprinkler head, which includes a short tubular body having an array of apertures through the wall thereof forming a closed elipse is described, together with a valve means for adjustment of the radius of the circular pattern of fluid discharge and a movable diaphragm means for adjustment of the size of the segment of the circular pattern in which fluid is discharged. The method of making such structure, including the fabrication of the tubular body of such structure in two parts by casting or molding techniques, is disclosed.

Abstract: A system for giving warning of the existence of an undesirable state of one or more of a plurality of monitored operating conditions of an engine-powered vehicle. Three degrees of warning are given, depending upon the criticality of the monitored condition. Individually energizable low-intensity warning indicators are provided for each of the monitored conditions, and a multiplexing circuit is provided for staggered pulsing of these indicators. The existence of any critical fault will cause an intermittent operation of a more intense warning device, while the existence of a highly critical fault will give an additional intermittent warning of a still greater degree of intensity.

Abstract: A control circuit (10) for the variable displacement pump (18) of a hydrostatic transmission (16) or the like comprises an underspeed actuator (31) connected to the servo system (19) of the pump (18), a venturi (15) interconnected between a source of pressurized working fluid (11) and the pump (18) and a pressure regulating valve (36) interconnected between a downstream side of the venturi (15) and the pump (18). A throat (29) and upstream side of the venturi (15) are connected to the underspeed actuator (31) for communicating a differential fluid pressure signal thereto to automatically control the displacement of the pump (18) under certain operating conditions of an engine of a vehicle.

Abstract: A specialized load absorbing apparatus is disclosed for fastening tooth adaptors adjacent the cutting edge of an earthworking tool. The adaptor is especially useful with relatively sharp cutting edges wherein the edge itself cannot be used to absorb the load. The apparatus includes conical seats between the adaptor and the cutting edge and/or a specialized wear plate which locates below the cutting edge and absorbs some of the forces exerted on the adaptor.

Abstract: An apparatus, such as the bowl assembly of a tractor scraper, comprises a first member having a second member movably mounted therein for movement between first and second positions. An actuator, interconnected between the first and second members, is adapted to move the second member between its first and second positions. The actuator is connected to the second member via a slot formed through the first member. The slot is continuously masked during movement of the second member between its first and second positions.

Abstract: A battery jumper cable assembly (15) including a pair of solenoids (100,200) connected to provide an interlock preventing the direct connection of two batteries (10,20) in series with each other by means of such cable assembly is disclosed. The operation of the cable assembly under various operating conditions is described. The essential features of the solenoids and the interconnection of alternate types of switch elements in the cable assembly are disclosed.

Abstract: A differential comprises a pair of face gears, a carrier rotatably mounted between the face gears and a plurality of pinion gears rotatably mounted on the carrier and intermeshing with the face gears for differentially permitting one face gear to rotate relative to the other face gear. The pinion gears are each rotatably mounted in bearings and a lubrication system is provided for pumping lubricating fluid to the bearings for lubrication and cooling purposes. The lubrication system comprises a double-acting pump mounted adjacent to the carrier and a rocker arm pivotally mounted adjacent to each end of the pump. A first end of the rocker arm engages a cam attached to the carrier whereas a second thereof engages an end of a piston rod reciprocably mounted in the pump to pump lubricating fluid to the bearing.

Abstract: A tool for removing insulation from a cable includes a plurality of rollers, with the axis of rotation of each such roller being angled relative to the longitudinal axis of the cable at a certain angle, and a further plurality of rollers which are together adjustable so that the angle between the axis of rotation of each such roller is varied relative to the longitudinal axis of the cable.

Abstract: A suspension and support system for shaker elements of a mechanical harvester wherein a generally horizontal shaker element support is suspended from the frame of the machine by a pair of generally vertical links pivotally connected at their lower and upper ends respectively to the shaker element support and frame, the links being of unequal length so that the unequal swinging movement of the links relative to the frame will result in a solely horizontal movement of the shaker element which is mounted on the end of the horizontal support member. The pivot connections have no relatively moving, interengaged surfaces so as to prevent sticking of such connections in the event juice accumulates thereon.

Abstract: Portland cement concrete at a roadbed, bridge deck or the like is quickly and deeply heated and dried by directing microwave energy into the concrete and by applying hot gas to the surface. A layer of thermoplastic sealant is applied to the hot concrete followed by an overlayer of asphaltic concrete having a higher softening temperature than the sealant layer. Compaction then produces a composite pavement which is sealed against water intrusion and which can be quickly, easily and economically resealed and resurfaced at a later time using little or no additional paving materials. Resealing and resurfacing is accomplished by deeply reheating all three layers by microwave irradiation followed by recompaction. If cracking and deterioration are severe, the asphaltic concrete layer may be remixed and rescreeding between the reheating and recompaction steps.

Abstract: A shovel linkage for a hydraulic excavator or the like has spaced parallel boom link rails which are coplanar with associated spaced parallel stick link rails and pivotedly connected thereto by means of pivot joints provided on the ends thereof.Bucket stops are provided on a bucket attached to the stick and are arranged to contact the centers of the stick rails for greater strength.