Abstract: An incineration equipment for removing organic substances from various parts of an extruder in a plastics forming machine, has a combustion chamber formed in the upper portion of a heating furnace accommodating a fluidized-bed consisting of refractory particles therein, into which furnace the various parts are to be thrown, and a burning system for heating the fluidized-bed and also for causing gaseous decomposed polymers produced by thermal decomposition of the organic substances and mixed with air fed from the bottom of the furnace through a porous dispersion plate to burn in the combustion chamber. This burning system connects through a single directional control valve with a fuel tank and an air tank, and it comprises a burner having its tip end opened in the combustion chamber, and a temperature sensor for sensing the temperature in the furnace and outputting an operation signal for actuating the directional control valve in accordance with the sensed furnace temperature.

Abstract: A steering and operating apparatus used mainly for motor graders and which enables positions and attitudes of a steering wheel and operating levers to be varied in the longitudinal and vertical directions of the vehicle. The apparatus has a steering wheel mounted box and support frames for the operating levers. Both the steering wheel mounted box and the support frames are respectively tilted in the longitudinal direction of the vehicle by the actions of mechanical arrangements which are different from each other and operated independently of each other. Thus, both the steering wheel mounted box and the support frames for operating levers can be tilted independently of each other.

Abstract: A cylinder liner mounted within an internal combustion engine cylinder block has a coating of a wear and seizure resistant material such as a ceramic applied to the inside surface of its upper portion. The inside surface of the cylinder liner lower portion, which is subject to lower temperatures than is the upper portion, has a coating of a commercially available surface treatment composition composed principally of manganous phosphote. The use of this surface treatment composition makes the inside surface treatment of the cylinder liners significantly less expensive without adversely affecting the engine performance than if the complete inside surface is coated with the wear and seizure resistant material.

Abstract: A control apparatus for a power transmission of vehicles such as construction machine having at least one work implement actuated by a hydraulic cylinder unit, a transmission gear with hydraulically operated speed-change clutch, and a torque converter interposed between an engine and the transmission gear so as to transmit rotational power of the engine and having a hydraulically operated stator clutch.

Abstract: A laser device in which an output of a switching circuit for DC/AC conversion is applied through a filter to discharge electrodes to generate an AC discharge therebetween to use it as a laser exciting source.

Abstract: The photosensitive member is constituted by a supporting member made of pure aluminum coated with a porous amorphous aluminum oxide anhydride layer, a photoconductive layer formed on the supporting member and comprises a hydrogenated amorphous silicon layer, an intermediate layer laminated on the photoconductive layer and consists of amorphous silicon nitride or amorphous silicon carbide and a surface layer laminated on the intermediate layerand consists of hydrogen containing amorphous boron nitride.

Abstract: A driving control device in a crawler type tractor comprises a lever capable of being operated in the forward or reverse (backward) direction and capable of being operated in the right or left direction when the lever is operated so as to move to the end of the forward or reverse direction, and a speed-stage command device capable of generating and transmitting commands for speed stages for the forward and the reverse directions. When a first sensor detects the lever operation in the forward or reverse direction; the transmission speed stages can be selected in accordance with the first sensor output and the output of the speedstage command device, and the operation amount of the lever in the right or left direction is detected by a second sensor so that steering clutches of the tractor can be controlled in accordance with the output of the second sensor.

Abstract: A hydraulic circuit system for use in hydraulically operated vehicles having a bidirectionally rotatable hydraulic motor with a brake unit, a directional control valve for controlling a pressurized fluid supply to the motor, bypass circuits connected between a fluid supply circuit and a drain circuit, a shadow valve provided in the bypass circuits, and an ON-OFF changeover valve provided in the bypass circuits for allowing the bypass circuits to connect with and disconnect from the shadow valve. The system further includes a cavitation preventing circuit device connected through check valves between the bypass circuits and the shadow valve so as to allow the bypass circuits to communicate with each other in co-operation with the shadow valve.

Abstract: A transfer press having workpiece gripping finger units and workpiece rests both respectively mounted in workpiece carrying -in and -out portions and idle stations defined between adjacent moving bolsters. Each of the finger units is mounted turnably up and down on central transfer bars movable into and out from the press body together with the moving bolsters without interfering with uprights of the press. Each of the workpiece rests is mounted turnably crosswise and lengthwise on the respective end faces of the individual moving bolsters on the side of conveyance of workpiece. Thus, when the moving bolsters are moved into and out from the press body, both the finger units and the workpiece rests can be automatically turned to their respective positions where they do not interfere with the uprights so that replacement of fingers and rest arms can be made readily and safely in a short time.

Abstract: A method for measuring the weight of a load loaded in a vessel of a vehicle such as, for example, a large-sized dump truck comprises steps of detecting the axial force applied to each of suspension cylinders mounted between the vehicle body frame and axles, and then compensating or correcting the detected axial force in accordance with respective mounting angles of links of linkage mechanisms mounted in the periphery of the axle and the inclination angle of the vehicle body. An apparatus for carrying the method into practice has at least four sets of suspension cylinders, an inclination angle detector mounted on the vehicle body frame, pressure sensors each being mounted on each of the suspension cylinders, a calculation or arithmetic unit adapted to receive and calculate output signals transmitted by the inclination angle detector and the pressure sensors, and a display unit adapted to receive a signal indicative of the result of calculation transmitted by the calculation or arithmetic unit and indicate it.

Abstract: A recess is formed on the upper surface of a cover sealing a laser chamber for accommodating plurality of capacitors for applying discharge voltage across a pair of discharge electrodes thus decreasing the cross-sectional area of a circuit loop passing discharge current. In a modified embodiment, a preliminary ionization gap is provided for a return rod constituting the circuit loop.

Abstract: An apparatus for the operation of a working element of an excavator. An arm connected to the working element and a boom for supporting and operating the arm are fabricated each in the shape of a hollow tube whose opposite ends are left unclosed. A boom cylinder, an arm cylinder, or a working element cylinder is disposed as contained within the boom or the arm. The point of connection of the boom to the arm and the point of connection of the working element cylinder to the arm constitute a joint fulcrum. The point of connection of the boom cylinder to the boom and the point of connection of the arm cylinder to the boom similarly constitute a joint fulcrum.

Abstract: Apparatus for feeding a bar or several bars in a vertical pile along a predetermined horizontal path extending through a bending station, where the bars are bent into desired shape. A first conveyor has mounted thereto a first gripper assembly, which releasably grips the bar or bars, for feeding successive requires lengths of the bar or bars to the bending station. Arranged collinearly with the first conveyor, a second conveyor has a second gripper assembly and coacts with the first conveyor for transporting the bar or bars through, and away from, the bending station with the progress of bar bending. The second gripper assembly is further movable up and down on the second conveyor. Upon completion of the bending of the bar or bars, the second gripper assembly grips the bent bar or bars while being lowered, then is raised for lifting the bar or bars out of engagement with the bending mechanism at the bending station, and then is transported by the second conveyor away from the bending station.

Abstract: A turbo-compound compressor system includes a booster compressor connected to the output shaft of a power recovery turbine which is disposed downstream of the outlet of an expansion turbine in a turbocharger for an internal combustion engine and drivable by the exhaust gas of the engine, and a rotary positive-displacement air compressor drivable by the engine also into which the air delivered by the booster compressor is supplied through an air supply conduit having a throttle valve. The turbo-compound compressor system further includes a bypass line provided therein with a closing valve and adapted to prevent surging caused in the booster compressor.

Abstract: A pair of opposed spindleheads are rigidly mounted on a bed for holding a crankshaft to be machined between a pair of chucks on the ends of indexing spindles. One or more, preferably two, cutter assemblies are provided between the spindleheads for movement therebetween. Each cutter assembly includes a carriage slidable along a guideway on the bed and itself having slidably mounted thereon a slide which is reciprocable in a direction normal to the axis of the crankshaft. Mounted to the slide for rotation about an axis parallel to the axis of the crankshaft is a disklike tool holder carrying a annular, rotary cutting tool in an eccentric position thereon. The cutting tool has an annular row of internal cutting edges surrounding with clearance a desired part of the crankshaft to be machined.

Abstract: A fuel injection system for internal combustion engines has a rotary valve device driven in synchronism with a cam shaft of the engine to distribute high-pressure fuel to unit injectors of the engine. The rotary valve device comprises a rotary spool having fuel supply port and a plurality of fuel metering grooves formed on the circumference of the spool. The fuel metering grooves are respectively provided with check valves. The rotary spool further comprises a pressure relief port for draining part of fuel accumulated in each of the unit injectors and a fuel supply pipe connected between the rotary valve device and the unit injector. The pressure relief port is formed on the circumference of the spool and between the fuel supply port and the fuel metering grooves.

Abstract: An oil pan adapter in the form of a rectangular frame with transverse reinforcing ribs is mounted to the underside of a cylinder block both for the higher adaptability for the installation of various type oil pans and for noise reduction through the damping of cylinder block vibration. One of the opposite end faces of the oil pan adapter is held against a flywheel housing mounted to one end of the cylinder block. For fluid tightly sealing this end face of the oil pan adapter, there is formed therein a generally U shaped groove including a pair of vertical limbs each having a horizontal limb joined to its top end. Each horizontal limb is open not only toward the flywheel housing but also toward the cylinder block. A sealing strip of matching shape and size is engaged in this U shaped groove to be held against both the flywheel housing and the cylinder block.

Abstract: A novel speed-change/steering system for crawler type vehicles comprises first and second stepless speed changers and a plurality of planetary gear assemblies disposed along one axis. First and second output shafts of the system are connected to respective elements of any two of the planetary gear assemblies. The input shafts of the first and second stepless speed changers are coupled to a power source, and the output shafts of the first and second stepless speed changers are connected to the planetary gear assemblies. One of the planetary gear assemblies is coupled to the power source. There is provided at least one clutch for fixing at least one element in the planetary gear assemblies. Also there are provided means for connecting elements of adjacent planetary gear assemblies.

Abstract: A method of working on a sloping surface of work is disclosed by means of a numerically controlled machine tool comprising a cutting tool carried by a spindle movable along three orthogonal axes, and a worktable rotatable both about its own axis and about another axis angularly displaced 45 degrees therefrom. The tool movements along the three axes and the worktable revolutions about the two axes are all controlled by a numerical control system, to which there are input prescribed data concerning the particular workpiece to be machined. The numerical control system is programmed to cause the machine tool to work, for example, on a conical surface or to drill one, two or more holes in preassigned positions on a sloping surface.

Abstract: A brake system for a construction vehicle which ensures the safety of the vehicle when it is parked on a sloping road and started again, and enables the vehicle to get away for itself from a dangerous place where it has been brought to an emergency stop. It includes a battery relay which is closed if a main switch is turned on, a parking brake switch provided with a self-holding relay, an emergency brake switch and a solenoid valve for a parking brake. The parking brake switch, emergency brake switch and solenoid valve are connected in series to a power source via the battery relay one after another.