Abstract: A process for reducing the concentration of undesirable components in the exhaust gases of an internal combustion machine. The process provides injecting fuel into the hot exhaust gases within the exhaust system and controlling the quantity of this additional fuel by means of an oxygen sensor located within the exhaust system and by appropriate settings of the primary fuel metering system of the engine. A catalyzer unit for chemical interaction with the exhaust gases may also be provided.

Abstract: An improved rpm regulator for a fuel injection pump associated with an internal combustion engine. The regulator includes a control lever, a fuel quantity control sleeve connected to the control lever, a regulating spring assembly connected to the control lever, a device for generating an rpm signal and applying a corresponding force through the control lever to the fuel quantity control sleeve in opposition to a force exerted by the regulating spring assembly and an adjustment lever connected to the regulating spring assembly for adjusting the preload exerted by the regulating spring assembly. The regulating spring assembly is improved and includes two holding members containing two compression springs so that when the two holding members are moved outwardly relative to each other the two springs are compressed. The springs are chosen and the holding members designed so as to minimize the degree of variation which can occur during a control process.

Abstract: A radiological table includes a platform for supporting a patient. The table is equipped with a single supporting mechanism for effecting the desired different translational movements in the transverse direction and the vertical direction, and its rotation and about axes parallel to its longitudinal axis. The platform is suspended at each of its ends by a mechanism which includes two concentric cranks, each journalled at one of their respective extremities to a pivot integral with a carriage or slide block gliding in a slide fixed transversely at the end of the platform. The transverse position of each of the carriages in the slide is independently controlled by a pinion secured to a hollow shaft rotatably mounted on said pivot and engaging a chain whose two ends are fixedly secured to the opposite extremities of the slide.

Abstract: The invention relates to wide-band, plane, spiral antennas. A conductive arm is arranged spirally in a plane close to a reflector. A resonator member positioned at the centre and in front of the spiral assists the area opposite which it is situated to radiate at high frequencies, to the detriment of the peripheral areas. An absorbent member whose thickness increases from the centre to the periphery increases this effect even further.

Abstract: An improved wheel lock prevention device for use in the brake system of motor vehicles. The device has a relay valve included in assembly with a motor vehicle operator controlled brake velve, a wheel brake cylinder and a source of pressurized air. The relay valve has a primary and secondary pressure side. The primary pressure side is connected to the brake valve and the secondary side is connected to the wheel brake cylinder. A short circuit connection between the primary and secondary pressure sides is provided with a control for effecting a balancing of the pressures on both the primary and secondary pressure sides after the pressure on both sides has been reduced from a peak value by a desired extent during application of the brake system.

Abstract: In a motor vehicle, the presence of laterally acting external forces is detected by an appropriate sensing device. The first time derivative of the sensed signal is used to initiate steering gear deflection to counteract the external deflecting forces.

Abstract: A magnetically-actuated membrane valve for controlling and/or regulating the flow of a liquid medium is described which valve comprises a control membrane fixedly clamped in a valve housing, and an armature frictionally connected with the membrane, which armature is arranged on that side of the membrane which faces away from the exciting coil and from the magnet core of the solenoid, whereby the magnetic flux flows through the membrane, especially for the control of the flow of a liquid which serves as control means in a fuel injection system.

Abstract: An improved r.p.m. regulator of a fuel injection pump for internal combustion engines includes an improved control spring mechanism. The control spring mechanism is connected to one end of a control lever which in turn is connected at its other end to a fuel supply quantity setting member. The control lever serves to actuate the fuel supply quantity setting member in accordance with the forces applied to the control lever by the control spring mechanism and an r.p.m.-dependent force applying structure which applies a force to the control lever in opposition to the force applied by the control spring mechanism. The control spring mechanism includes a compression spring mounted between the control lever and a setting lever, a first connecting member and a second connecting member. The first connecting member is connected to that end of the control spring furthest from the setting lever, while the second connecting member is connected to that end of the control spring furthest from the control lever.

Abstract: A hydro or oleopneumatic device comprises a pressure transformer consisting of a single or multiple pneumatic cylinder having one or a number of stages in which the piston is rigidly coupled to an accumulator. The accumulator piston discharges the liquid to a function jack which utilizes the energy produced by the pneumatic pressure. The pneumatic cylinder is not provided with compressed-air exhaust ports and is freely connected to a compressed-air reservoir at the working pressure. The volume VR of the reservoir is large in comparison with the volume VC of the pneumatic cyclinder, the ratio VC/(VR + VC) being equal to the permissible variation in the working pressure of the air according to the intended use of the device.

Abstract: A flat flame burner comprises an air swirling chamber, an air supply tube provided for the air chamber for introducing combustion air thereinto in the peripheral direction of the air chamber so as to produce a swirling air stream in the chamber, a fuel gas supply tube disposed in the air chamber and having inlets centrally of the space for the swirling air stream and a flame opening positioned at one side in the direction of axis of the swirling air stream coaxially with the swirling air stream, the flame opening being defined by a wall having a thin portion around said opening and a flat outer face.

Abstract: A fuel injection system for mixture compressing, externally ignited internal combustion engines includes a fuel distributing unit having a plurality of fuel metering valves, and a plurality of pressure valves. The pressure valves are disposed in the fuel flow path between their respective fuel metering valve and their associated fuel injection valve. Each of the pressure valves includes a space which is divided into first and second chambers by a flexible member. At least one of the pressure valves is embodied as an equal pressure valve, and at least one of the pressure valves is embodied as a differential pressure control valve. The pressure in the second chamber of the differential pressure control valve is the pressure prevailing upstream of the fuel metering valves, and the first chamber of the differential pressure control valve communicates with the second chamber of each of the equal pressure valves so that the pressures therein are equal. Fuel metering occurs at a constant pressure difference.

Abstract: What follows is a description of a fuel metering system for internal combustion engines having a measuring probe. The probe monitors the composition of the exhaust gas and produces an output signal which is used to govern the motions of a magnetic valve which in turn regulates the amount of air mixed in with fuel prior to the admission of this mixture to the veturi in the suction tube of the carburator.

Abstract: A fuel injection nozzle for internal combustion engines is normally closed by an axially movable needle valve. The needle valve is operatively arranged to actuate, at least mediately, an electrical switch after lifting from its valve seat.

Abstract: A cartridge for an endless magnetic tape which includes a tape reel, a pressure roller and a drive connection between the pressure roller and a portion of the tape reel. In this way, the pressure roller can be utilized to drive that portion of the tape reel with which it is connected. The tape reel comprises two discs each having a hub portion. The hub portions serve to align the discs in assembly. One of the discs has a plurality of rollers concentrically arranged with respect to its hub portion around which a tape roll is formed. The other disc has a plurality of tape-engaging ribs extending outwardly from one surface and a rotation imparting structure extending outwardly from the other surface.

Abstract: A lightweight container for foodstuffs or the like, formed from a multi-layer composite material, typically a sandwich of metal and synthetic plastic foil. A dish-shaped base member and a cover are thermally joined or welded at respective flanges. The cover is provided with weakening score lines which define an area which is to be removed by fracturing the cover material along the score lines when a tab, contiguous with a part of the cover, is pulled up. Each partial section of the tear-open cover has such a tab which is intended to be grasped with the fingers of one hand. The tabs themselves are not joined to the base member of the container and may, in fact, protrude out of the plane of the cover when the container is sealed. The hermetic seal in the region of the free-standing tabs is assured by a platelet, which may be made of the same material as that from which the container is made, but which may have a different composition.

Abstract: A fuel injection pump for internal combustion engines includes a pump piston whose simultaneous reciprocation and rotation distributes pressurized fuel to the several injection nozzles of the engine. In order to shift the onset of fuel injection towards a later time during the delivery stroke of the piston, relief channels are disposed in the piston and in the surrounding cylindrical bushing. An annular slide, moving coaxially with respect to the piston, cooperates with the terminal apertures of one or more of these relief channels to relieve the fluid pressure in the working chamber of the pump, thereby interrupting fuel injection to the nozzles of the engine.

Abstract: A buttoning means is provided having two parts, one of which holds a barbed member able to pierce the item to be buttoned and then to be restrained by the other part, the parts are tethered by a tethering means that was coiled in one or both of the parts prior to buttoning and is uncoiled when buttoning has been effected.

Abstract: A fuel injection system for externally ignited engines employing continuous manifold injection includes a fuel metering valve assembly. The control slide of this valve assembly is actuated by the air-flow through the induction manifold and controls the size of fuel flow apertures. A differential pressure valve normally maintains a constant pressure difference across these metering valve apertures. The magnitude of this normally constant pressure difference can be altered in response to signals obtained from or measurements performed on operational parameters of the engine; for example, the oxygen content of the engine's exhaust gases.

Abstract: An illuminating device which employs prisms to concentrate light onto an operating area or field.The prisms are formed by an assembly of straight prism-segments which are combined into radial sectors the angular extent of which is such that the beams issuing from the source are reflected onto the field to form an area of approximately the same width as the field. Each sector thus illuminates the whole of the field, resulting in a great uniformity of illumination.Applicable to the illumination of operating tables and in general to the illumination of cavities and their walls.

Abstract: The invention provides means for controlling the displacement of a universally pivoted member which is subject to a force, such as the force of the wind tending to move the member about its universal pivot, so that a predetermined law of displacement in relation to the applied force is maintained.