Abstract: A pipe connector comprising a tubular pin member (1) having an outer generally frusto-conical surface and a tubular box member (2) having an inner surface corresponding to the surface of the pin member which overlies the surface of the pin member when the members are fully engaged. The central portions (3a,4a) of the frusto-conical surfaces are provided with complementary inter-engaging formations (5,6) and end portions (3b,3c,4b,4c), which are generally spaced apart, have abutting annular rings (20,21) to transfer hoop stresses caused by a pressure difference across the walls of the connector. Following wear of the connector (1,2) the rib also serves to reduce the material removed from the or each member when it is re-cut.

Abstract: A boost and buck chopper type potential source excitation system for a synchronous type electric power generator which is capable of having an operational characteristic which is better than that of a conventional voltage source excitation system with respect to a rated input voltage and forcing an excitation field by boosting an excitation input voltage using a boost chopper when an excitation input voltage is decreased due to a failure in a cable. The system includes a boost chopper for receiving an output voltage from the buck transformer, converting the thusly received voltage into a direct current voltage, adjusting a level of the same, outputting the same to the thyristor as an excitation voltage, boosting the direct current voltage when the output voltage from the electric power generator is decreased, and outputting the thusly boosted voltage to the thyristor.

Abstract: A grooming brush for a horse having both relatively stiff and relatively flexible bristles extending in generally opposite directions to one another. A currycomb is formed by projections extending from the sides of the brush, and a rigid hoof pick is supported on one end.

Abstract: A friction system moistened by a lubricating oil comprising a pair of friction bodies movable relative to each other along a friction surface. At least one of the friction bodies contains a friction lining having a heat capacity ratio and a heat conductivity ratio which diminish perpendicularly away from the friction surface such that boundary friction and thermal elimination of the lubricating oil ensue at individual friction points of the friction surface, thereby disposing the seizing tendency of the friction bodies and obtaining constant coefficients of friction and low rates of wear.

Abstract: An electrolytic process for metal-coating the pre-cleaned surface of a workpiece of an electrically conducting material, which process comprises:i) providing an electrolytic cell with a cathode comprising the workpiece and an anode comprising the metal for metal-coating of the surface of the workpiece;ii) introducing an electrolyte into the zone created between the anode and the cathode by causing it to flow under pressure through at least one opening in the anode impinge on the cathode; andiii) applying a voltage between the anode and the cathode and operating in a regime in which the electrical current decreases or remains substantially constant with increase in the voltage applied between the anode and the cathode, and in a regime in which discrete gas bubbles are present on the surface of the workpiece during treatment.

Abstract: In order to facilitate a simple and cost-effective manufacture of a hydraulic cylinder, the cylinder tube (3) is provided as smooth stock with connectors (9) set up, preferably stud-welded, for the hydraulic attachments (1,2). Assembly parts provided in the cylindrical tube (3), such as the base (10), seal (7), guide casing (8) and fixing device (4), are held inside the cylindrical tube (3) by means of non-cut, indented locking regions (11, 12, 13).

Abstract: A pipe connector includes a tubular pin member having a generally frusto-conical outer peripheral surface and a tubular box member having a generally frusto-conical inner peripheral surface corresponding to the frusto-conical outer peripheral surface of the pin member and overlies the frusto-conical surface of the pin member when the members are fully engaged together. The members include with inter-engageable annular projections and grooves on the said peripheral surfaces for axially locking the members together when they are fully engaged together, the projections and grooves being spaced apart along the surfaces. Means are provided for supplying hydraulic fluid under pressure between the overlying parts of the surfaces of the members when fully engaged together to expand the box member and/or contract the pin member to bring the projections out of engagement with the corresponding grooves and permit the members to be disengaged.

Abstract: A push button residual current device employs a single push button to perform setting and testing operations. Over a first part of the down stroke of the push button a test trip is initiated which causes the device to trip if it is properly functioning. When the push button is pushed further, and then released, the device goes into a state allowing current to pass provided no trip condition is detected. Once the device is operative for allowing current to pass, any fault condition results in a trip for disconnecting the power supply.

Abstract: A massage plant for the processing of chunks of meat includes a container (22) which is rotatable about its longitudinal axis and includes axially or substantially axially extending interior conveyors (16), each made as a hollow profile containing internal channels. Each conveyor is preferably produced by securing a sheet by means of embossments (e.g., temp-plates or vortex plates), in such a manner that a space is generated between the sheet and the hollow profile which has a connection (42,46) for a fluid for regulating the temperature of the load of meat and brine in the container. The axial orientation of the conveyors makes the entire interior of the container easy to survey. The construction of the conveyors is furthermore comparatively simple, and in the event of a leakage, the valuable meat contained in the container is not contaminated by the fluid, since the spilled matter runs within the hollow profile where it is possible to detect any spillage.

Abstract: A waste water settling apparatus includes a closed cylindrical vessel supported on and vertically extending above a base, two vertical vibrators joined to the closed vessel for vibrating the vessel, and a drive spring assembly joined between the vibrators and the vessel for multiplying the vertical force of the vibrators. The closed cylindrical vessel includes a rotary valve joined to the lower portion of the vessel for discharging densified solids settled out of the waste water.

Abstract: A tongue conditioning implement includes a handle, a head and a removable and replaceable cartridge including a conditioning element, the handle containing a vibrational motor to cause the implement to vibrate and reduce the manual action needed for the conditioning element to achieve the desired results. The handle can contain a switch and a battery. The head can provide a channel which extends generally transversely to the handle and the cartridge can include two end sections which enable it to snap fit onto the head. The cartridge element can be a scraper with one or more blades or a pad for the application of breath freshener gels or medications to the tongue surface.

Abstract: In a glass ampoule for holding a drug, a calibration liquid or a quality control liquid, whose bottom is flat or recessed towards the interior of the ampoule, the bottom area is shaped and/or coated such that a predefined breaking site is provided, which can be mechanically destroyed with little use of force.

Abstract: A pressure jaw (1) at the end of a clamping device for the laying of floating floor coverings like laminates and ready-made parquet which are joined by tongue and groove connections includes a long leg (2) and a perpendicular short leg (3), with a perpendicular horizontally protruding shoulder (5), so as to press against the carrier material of a floor covering plate (4). The long leg (2) includes at least two space adjusting-screws (7) separated from each other and insertable into threaded holes (6), by means of which the distance between it and the pressure jaw (1) can be adjusted by resting it on the floor covering plate (4). It thus occurs that the shoulder (5) presses basically directly below the spring (9) of the floor covering plates (4) of various floor coverings with differing material strength.

Abstract: A trigger actuator pump sprayer has a fixed portion at the rearward section of its pump body providing a hand positioner for supporting the pump sprayer when mounted to a container of liquid to be sprayed. Another portion of the rearward section of the pump body is open to facilitate manufacture of the pump body, and is closed by a hood having a fixed piston spring assembly external to the pump chamber for biasing the piston outwardly of its bore.

Abstract: The invention relates to a four-stroke internal combustion engine with spark ignition and direct injection of the fuel into the combustion chamber, with a reciprocating piston for each cylinder and a roof-shaped top of the combustion chamber with at least one exhaust valve and at least two intake valves, as well as intake ports generating a tumble flow in the combustion chamber, as well as a fuel injection device opening into the combustion chamber, and an ignition source located in the area of the cylinder axis in the roof of the combustion chamber.

Abstract: A load panel for the luggage area of a motor vehicle, in particular a passenger car, runs on three or more rollers and may be pulled out from the trunk at least partially, approximately parallel to the vehicle bottom. In order to increase crash safety while offering a high load-bearing capacity of the load panel, the proposal is put forward that the panel have at least one predefined folding line running transversely to the direction of vehicle motion and that at least one securing device be provided to prevent the retracted panel from moving forwardly relative to the bottom of the vehicle.

Abstract: The terminal (1) with stirrup-shaped base member (4) and spring-loaded pressure plate (6) retained to slide between the stirrup lateral sides (4',4") includes a respective recess (10,11) on each of the lateral sides that enables the terminal (1) to be set onto the bar (3) from the side over the conductor (2).

Abstract: A compounder feeder for mixing and then injecting materials such as polymers and glass fibers into a female die mold includes first and second parallel screws which have interengaging spur gears and external mixing discs, the mixing discs of one screw not engaging the mixing discs of the second screw, a drive motor for rotating the first screw and a drive cylinder for moving the second screw axially toward and away from the female die mold to inject mixed material directly therein.