Abstract: A device in storage tanks with a floating roof and a vertical stillpipe with a number of openings distributed along the length of the same for reducing the outflow of volatile substances from stored products is described. The device comprises a floating body with at least one peripheral seal engaging the inner circumference of the stillpipe. The volume/weight relationship of the floating body is such that it floats in the product and encloses the product surface within its periphery. The floating body is designed so that the gas pressure inside the body is the same as the gas pressure within the stillpipe above the floating body. The body is so constructed that direct gauging with microwaves may be performed against the product surface through the inside of said stillpipe.

Abstract: A cylinder liner for a piston in an internal combustion engine with a cylinder block and a cylinder head mounted on the top of the latter. The cylinder liner is removably inserted in a cavity in the cylinder block, which cavity extends from the cylinder block upper surface down to the crankcase. The cylinder liner is axially fixed in the cavity by the cylinder head and by a bearing projection on the cavity wall, on which bearing projection a supporting projection of the cylinder liner bears. The contact area between the bearing projection and the supporting projection is situated in the region of the bottom dead center position of the lower, gas sealing, piston ring in the cylinder liner. The liner is surrounded by at least one coolant passage around the upper portion of the liner, and by a second cooling medium passage for air which is separate from the passage and which extends down to the contact area.

Abstract: A cylinder head for an international combustion engine comprises at least two separate intake ports with each incorporate one intake valve and at least one exhaust port, which in turn incorporates one exhaust valve, where the intake ports and the exhaust port have their openings on opposite lateral faces of the cylinder head. The cylinder head also comprises a centrally arranged fuel injector which is driven by a top rocker arm, a push rod passing through the cylinder head, and a bottom camshaft. The cylinder head is also designed with a common vertical shaft or through hole which incorporates push rods for transferring the drive from the camshaft to the valves and to the fuel injector. The shaft is arranged between the two intake ports.

Abstract: An arrangement for a seat intended to be fitted in the back-rest of the seat in order to massage the back of a person sitting in the seat. The arrangement comprises two identical pulsators (5) intended to be accommodated in recesses in the padding material of the seat. Each pulsator (5) comprises an electrical drying motor (11) for driving a number of massage elements (29-32). The driving motors (11) are connected to a common electrical control system which, during a time-limited work cycle, intermittently supplies the driving motors (11) with voltage.

Abstract: An arrangement for riveting of sheet material (33) with devices for drilling (7), for the positioning of rivets (8), for the driving of rivets (9) and for the positioning of a bucking bar device. The arrangement of the invention is characterized in that the three above-mentioned devices (7-9) are so arranged as to be capable of adjustment one at a time, into a certain operating position in relation to a frame (3). The frame (3) is precisely adjustable by means of a robot (6), in relation to the sheet material (33), on one side of the sheet material (33) while the bucking bar device (28) is adjustable on the other side of the sheet material (33) by means of a second robot (32).

Abstract: A multiple-circuit brake system for motor vehicles in which a multiple-circuit braking value transducer is embodied partially electrically and partially as a pneumatic control valve and is intended for triggering pressure control valves, the wheel brake cylinders being disposed following these pressure control valves. One pressure-medium reservoir is associated with each pressure control valve, and the controlling energy for each of these pressure control valves is drawn from the pressure-medium reservoir associated with that valve. In the pneumatic brake circuit (I), a further pressure-medium reservoir is provided preceding the braking value transducer, as a result of which it is possible, with the aid of two-way check valves, to actuate the wheel brake cylinders with the pneumatic brake circuit (I) whenever the electrical brake circuits (II, III) have failed.

Abstract: The invention relates to a method and an arrangement for detecting ionizing current in an ignition circuit incorporated in the ignition system of an internal combustion engine, in which a measuring voltage is applied to the ignition circuit in at least one secondary winding, and in which a measuring device is used to detect the possible presence of an ionizing current in the ignition circuit. A low measuring voltage is applied during an engine start sequence, or alternatively, no measuring voltage at all, and a high measuring voltage is applied subsequent to the engine start. The invention thereby overcomes the problem existing when measuring ionizing currents of the spark plugs becoming coated with soot deposits as a result of the electrical voltage field which always exists between the electrodes of respective plugs. Such problem is particularly troublesome during an engine start sequence, since the deposits can prevent the engine from starting.

Abstract: Apparatus for sensing the relative position between a fixed first machine component and an axially displaceable and pivotably mounted second machine component includes first and second bar-shaped magnets disposed at mutually right angles and rigidly connected to the second machine component, each of the magnets having a free pole; and a plurality of transducers rigidly connected to the first machine component and facing the free poles of the magnets for sensing the magnetic field of said magnets. At each long side of each of the first and second magnets an adjacent magnet disposed in parallel with the respective first or second magnet, each of these adjacent magnets having a free pole disposed in the vicinity of the free pole of the respective first or second magnet. The free poles of the first and the second magnets have a polarity reverse to that of the free poles of the adjacent magnets, and each magnet has opposite to its free pole a second pole directed away from the transducers.

Abstract: The invention relates to an arrangement in a passenger seat of a vehicle, preferably the back seat in a passenger car, for re-arranging said seat, including a seat cushion and a back cushion, the former being articulatedly connected via a link to the vehicle body and being arrangeable between a normal sitting position and a retracted substantially vertical loading position. The back cushion is pivotably connected to the vehicle body and arrangeable between a normal back support position and a swung-down substantially horizontal loading position. In their respective normal positions the rear end of the seat cushion is situated under the lower end of the back cushion.

Abstract: An array camera used to scan elongated workpieces moving through a measuring zone transversely to their lengths has its photoresponsive detector elements aligned lengthwise of the workpieces, with optical axes of the elements lying in a common plane intersecting the measuring zone. Each element "sees" only a small (e.g., 8.times.8 mm) pixel. Radiation sources are located at opposite sides of said plane and emit radiation towards the measuring zone to be reflected to the elements from workpieces. During each of a succession of short measuring cycles (e.g., 4 millisecond duration) each element is exposed successively to radiation originating from each radiation source to the exclusion of the other, to thus produce an A output and a B output during each cycle, and is also exposed to substantially low level radiation to produce an R output. For each cycle, the R output of at least certain elements is subtracted from the A and the B outputs of the same elements for the same cycle, to produce .DELTA.A and .DELTA.

Abstract: Log processing apparatus comprises a cutting machine that defines a substantially vertical cutting plane, feed mechanism that feeds a log through the cutting machine in substantially lengthwise horizontal motion parallel to the cutting plane, a measuring station spaced horizontally and vertically from the cutting machine, and transfer mechanism by which a log is carried in horizontal translatory motion from the measuring station to the feed mechanism. At the measuring station, or before the log reaches that station, it is established in an optimum rotational orientation which is thereafter maintained through transfer of support of the log to a set of jaws on the feed mechanism. At the measuring station a relationship is ascertained between a calculated plane that extends lengthwise in the log and a reference plane defined at the measuring station that has a fixed relationship to the cutting plane.

Abstract: An antenna array for directional determination comprises two pairs of elongated end-firing log-periodic antenna elements, each pair fixed symmetrically to a reference plane and preferably forwardly convergent to it. The two antenna elements of one pair converge forwardly at an angle b, those of the other pair converge at a preferred angle a=1.5 b. In one embodiment each pair is connected with a 90.degree.--hybrid, and from the detected and amplified signals across individual elements of each pair there is obtained a difference signal designated L.sub.1 for the b-angle pair, L.sub.2 for the a-angle pair. A third difference signal L.sub.3 is obtained from L.sub.2 -L.sub.1. The magnitude of each difference signal depends upon value of an angle V between a symmetry line in the plane of symmetry, symmetrical to the antenna elements, and the projection in that plane of a line through the array and a detected radiation source. An indication of V is taken on the basis of L.sub.1 if L.sub.1, L.sub.2 and L.sub.

Abstract: PCT No. PCT/SE78/00067 Sec. 371 Date July 2, 1979 Sec. 102(e) Date June 29, 1979 PCT Filed July 2, 1979 PCT Pub. No. W079/00260 PCT Pub. Date May 17, 1979A correlation follower comprising an image sensor (1) adjustable sideways and in height with a limited field of view, which is cyclically scanned by the sensor the output signal of which reflects the image content within the field of view and a video correlator (3) for controlling the alignment of the sensor in dependance of the output signal of the image sensor.The video correlator (3) has two addressable memories (12, 14) the one of which is a real time memory (12), i.e. in this memory a section of the field of view is stored for each cycle. The other memory is a reference image memory (14) and is updated with the content of the real time memory (12).

Abstract: The invention relates to a synchronizing arrangement for a motor vehicle gear box, comprising at least one synchronizing hub disposed locationally fixed in the longitudinal direction on a shaft, which hub co-acts via external teeth with internal teeth on a concentric synchronizing sleeve which is arranged so that it may be displaced in the axial direction.

Abstract: A target for night-time gunnery and similar practice with the use of a heat responsive sight comprises a thin, supple fabric supported on a rigid frame to be substantially flat, with a front surface facing towards a location from which firing takes place. The fabric comprises a front protective sheet, preferably plastic, which is transparent to infra-red radiation, and a rear radiation-absorbing sheet of low heat capacity, preferably foil. A coarse-mesh net, between said sheets and secured to both, holds them spaced and parallel to cooperate in defining a heat insulating air space between them. An infra-red radiator heats the heat-absorbing sheet, which preferably has a radiation absorbing matte coating on its rear surface and a colored front surface coating. When warmer than its surroundings, the heat absorbing sheet thus radiates as a black body.

Abstract: The invention relates to super-charged combustion engines in which a compressor is arranged in the engine inlet system and driven by a turbine in the engine exhaust system, a duct is provided for by-passing the turbine to the exhaust outlet, and a valve is provided to control exhaust gas flow through the by-pass duct and turbine. The invention provides exhaust gas pressure transmitting means connected to actuating means incorporated in the valve, said actuating means operating in dependence upon the pressure of the exhaust gas to control its flow through the turbine and the by-pass duct in order to limit the speed of the turbine and the compressor when a predetermined pressure is exceeded, whereby pressure in the engine inlet system decreases with increasing engine speed, at least within an upper r.p.m. range of the engine.

Abstract: For scoring of simulated firing of a weapon, having flatwise-angularly sweeping beams of radiation, emitted at the weapon location during a period beginning at or about the instant of simulated firing are used for measuring the position of a target retroreflector in range and in functions of azimuth and elevation. During the same period a calculation is made of the instantaneous positions in range, and in functions of azimuth and elevation, of an imaginary projectile fired from the weapon at the firing instant under conditions then existing, and the relationship is ascertained between the imaginary projectile and each beam in its angular position at interception by the retroreflector. At a scoring instant, when weapon-to-reflector distance equals weapon-to-projectile distance, or when the projectile is at a predetermined elevation relative to the reflector, scoring is based on the relationship of projectile to angular beam position at that instant.

Abstract: A wind deflector for vehicles provided with a sun-roof of the kind having a generally rectangular opening and a shutter therefor, the wind deflector extending along the leading transverse edge of said opening. The wind deflector is relatively inexpensive to construct and comprises the outer metal sheet of the vehicle roof and forms an integral part therewith. The deflector has a rearwardly and upwardly inclined section, and includes a reinforcing plate fixed to the deflector and extending along the leading transverse edge of the roof opening. Preferably the highest point of the rearwardly and upwardly inclined portion lies substantially at the same height as the rear transverse edge of the roof opening. Also, the inclined portion preferably has a slope of between 5.degree. and 35.degree. relative to the forwardly lying portion of the roof. To ensure rigidity of the wind deflector, the upper edge of its rearwardly and outwardly inclined portion is folded around an end edge of the reinforcing plate.

Abstract: A method for producing articles of a cellular plastics material provided with a surface covering comprising a film or foil of a thermoplastic material or a metal or a textile where the side of the covering facing the cellular plastics material is treated with or comprises a chemical substance acting as a retarder for the chemical reaction providing the bonding between the covering and the cellular plastics material. The cellular plastic material is able to expand freely in a mold and to bond to the covering without forming a deformed cellular structure in the cellular plastic material in the boundary layer adjacent to the covering.