Abstract: The antenna represents colinearly arranged half-wave dipoles. On the side of each final half-wave dipole is a quarter-wave dipole. The connection between the dipoles is alternately capacitive and inductive each providing a phase shift within the range of from 60 to 120 electrical degrees. The terminal of the antenna is asymmetrically deduced from the free end of one of the final half-wave dipoles and the adjacent end of the nearby quarter-wave dipole. This antenna can be used in reception and transmission of electromagnetic energy and shows a considerably increased gain.

Abstract: An automatic noninvasive blood pressure monitor with a continuous correction of the setpoint and of the gain without interruptions of the blood pressure measurement has a pressure vibration generator, the frequency of vibration being higher than that of the highest harmonic component of blood pressure wave, and a correction circuit, the input of which is connected either directly or through at least one amplifier of the basic servosystem to the sensor of the plethysmographic gauge and output of which is fed to the input of the circuit for correction of the setpoint of the basic servosystem.

Abstract: Fibre loosening device for a spinning unit of a spinning machine. The invention relates to a fibre loosening device for a spinning unit of a spinning machine. Before entering the fibre separating area, the sliver is longitudinally separated into fibre sections fed to a separating region, i.e., to helix-like arranged functional lines on the fibre separating roller, such feeding being non-simultaneous but sequential. The division into the fibre sections is initially carried out by means of protrusions defining grooves therebetween on a condenser, the axial distance between these grooves not being an integer multiple of the helix lead width of the functional lines on the fiber separating roller. The arrangement provides for reducing periodical irregularities of the fibres for the subsequent spinning process.

Abstract: In order to increase the efficiency of a harvesting line of hop vines and in order to eliminate hard work, the transfer of hop vines is controlled starting from their cutting in the hop garden up to their feeding to a picking machine. In order to increase the reliability of functioning, the hop vines are always consecutively seized at a hitherto not damaged place of the stalk. A displaceable rotary storage device can be alternately connected to a trailing device, to a conveying device and to an intermediate storage device provided in front of a dosing conveyer of a picking machine.

Abstract: A propellant-charge pack has an annular envelope having an outer wall extending along and centered on an axis, a pair of axially spaced end walls extending transversely inward from the axis and having inner peripheries centered on the axis, and an inner wall defining a clear axially throughgoing passage between the inner peripheries of the end walls. The envelope is generally axially symmetrical about the axis, that is it is formed as a body of revolution or of regular polygonal section, and is substantially symmetrical to a plane perpendicular to the axis midway between the end walls. A relatively easily ignited primar charge forms a part of the inner wall symmetrical of the plane and a propellant charge fills the envelope between the walls outward of the inner wall. The primar charge is of such high combustibility, compared to the diameter of the passage, that the entire primar charge, even of a stack of such packs, will be ignited before they burn through and set off the respective propellant charges.

Abstract: The invention relates to an arrangement for dosingly filling pasty or fluid filling material into containers. The arrangement is provided with a rotatably mounted cylinder and an axially slidably mounted piston which moves within the rotatable cylinder and which in its extreme inner position closes at least a third, but preferably about 50% of a window-like through opening, respectively inlet opening in the housing of the device. When retracting the dosing piston it exposes the portion of the through opening which has been closed when the piston is in its innermost position. By filling containers by means of the device of this invention, the filling material is automatically dropped into the rotating cylinder and is thereby subjected to an extraordinarily sparingly sensitive manipulation, which is particularly significant for sensitive products, such as for example salad-like products.

Abstract: A heat exchanger has a plurality of like plates each in turn provided with a base portion substantially on and defining a base plane and having a pair of generally parallel opposite outer edges, and respective lips bent upward from the outer edges and forming and lying on an attachment plane substantially parallel to the base plane. Adhesive bonds or welds secure the plates together in a stack to form generally perpendicular flow passages parallel to the plane. The lips of each plate extend generally perpendicular to the lips of the adjacent plate and the plates are secured together with the connection plane of each plate lying on the base plane of an adjacent plate. Each plate is formed between the respective opposite edges with a plurality of integral bumps projecting from the respective base plane toward the respective connection plane. These bumps each have an apex lying on the respective connection plane.

Abstract: An apparatus for treating the exhausted smoked from a chimney by precipitation has a smoke collecting device placed at the exhaust of the chimney and a vapour injecting nozzle to spray high speed vapour over the smoke from the chimney into the collecting device. A water tank for receiving the mixture of the vapour and the smoke and precipitating the same with the water contained therein is connected to the collecting device by a conduit. The conduit is provided with suction means to accelerate the flow of the mixture of the vapour and the smoke to the tank. The water tank may also be equipped with set of vapour spraying devices and a smoke filtering web for preventing the possible leakage of smoke from the water tank. A preferred embodiment has two opposing collecting devices, each provided with its own conduit, suction means, and tank.

Abstract: A hydropneumatic harpoon has an arrow, a base and a body with a hydraulic chamber. In the rear end of the chamber is a pneumoaccumulator, the front of which rests against a rubber membrane whose front part is placed on a discharge grid while its rear part is mounted on a mobile barrel that is sealed by a rubber ring. Perpendicularly to the axis of the discharge grid is mounted a trigger valve. The barrel is connected through intermediate barrels with an attachment in which is placed a seal for the arrow. The arrow is composed of a basic stem and a point that are connected through one or more intermediate stems. The inner diameter of the barrel and those of the intermediate barrels are equal. The diameter of the basic stem and the diameters of the intermediate stems are also equal. A principal advantage of this harpoon is the ability to modify its length and thus to obtain a harpoon with a small, medium or large killing force when used in submarine fishing.

Abstract: A vibrating screen which comprises a housing having screening surfaces, the surfaces forming an angle with respect to each other, and vibrators. The housing consists of separate sections having screening surfaces arranged, one underneath the other, inside of each section. Each section is suspended to a frame by means of flexible joints. Vibrators are mounted to each section. The screening surfaces of the separate sections are arranged at different inclinations and have different widths in the downward direction of motion of the material passing through the vibrating screen device.

Abstract: The invention relates to a dosing arrangement for filling of liquid nutrient materials, in particular salad-like products having solid, respectively chunky constituents, whereby a cylinder-piston-unit is mounted for a return sucking operation substantially in the immediate vicinity of the outlet end of a mouthpiece, respectively a mouthpiece chamber. Thereby an undesirable postdripping is prevented also during the filling of liquid containing products having solid constituents. In particular this effect is achieved by providing the mouthpiece with a return sucking cylinder connected thereto at its lower end by way of a conical communication channel and a transfer piece for receiving at least a slitted sealing membrane or the like sealing element.

Abstract: Disclosed are a lubricant composition comprising a major amount of one or more lubricant fluids and at least one polyvalent metal salt of the formaldehyde condensation products of C.sub.12 -C.sub.22 alkyl hydroxy benzoic acid, and a method of preparation of same. Because of the methylenebis structure of the polyvalent metal salts, engine properties such as detergency/dispersancy, thermal stability, hydrolytic stability, oil solubility and especially compatibility with other additives are improved by the use of the composition.

Abstract: The invention relates to a process and apparatus for feeding a stack delivery unit of a packaging machine, e.g. a cartoning machine, with cardboard carton cut pieces or the like stored in stacks, whereby the cartons are first loaded onto a first supply stack and are further transferred to a second supply stack with the assistance of a stack clamp of a drive chassis, whereby the partial stacks are each loaded in succession into the supply stacks and the stack delivery unit of the packaging machine. The transport inside the supply stack results with the assistance of contrarotating driven conveyors in which the partial stacks are held a certain distance from one another.

Abstract: A backward driving device for tricycle, especially scooter motorcycle remodelled for the disabled, to be installed to engine power output shaft, incorporated with a shifter for driving backward.

Abstract: The invention solves the problem of ejecting impurities out of a cleaning aperture in the fiber separating device of an open-end rotor spinning unit, particularly when there are various contaminations of fibrous slivers and of different kinds of textile fibers being processed. For this purpose an air flow regulator is provided in the separating device in an air supply duct communicating with the cleaning aperture. According to the invention, the air flow regulator is provided with an air directing wall near the outlet of the air supply duct and thus directs air flow into the cleaning aperture toward the fiber opening cylinder.

Abstract: A subcaliber projectile has a small-diameter projectile body extending along and centered on an axis, having a radially outwardly directed outer surface, and adapted to move in a predetermined axial back-to-front direction, and a sabot formed of a plurality of similar segments annularly surrounding at least a portion of the body, the segments forming an inner surface generally on the outer surface of the body and having an extreme front end and an extreme rear end. This projectile is formed on one of these surfaces at the extreme rear end of the sabot with a radially projecting ridge of generally semicircular shape having a center of curvature. The other of the surfaces is formed at the extreme rear end of each segment of the sabot with a radially open recess complementary to and receiving the ridge.

Abstract: A laser resonator has a semitransparent outlet mirror and a first mirror, with an active element between the mirrors, all the elements arranged perpendicular to the optical axis of the resonator. A shutter is provided behind the first mirror and a second mirror is arranged behind the shutter, perpendicular to the optical axis of the resonator. The second mirror is fully reflective for radiation with stronger laser transition and the first mirror is fully reflective for radiation with weaker laser transition and fully penetrable for radiation with stronger transition. The resonator can change frequency simply by opening or closing the shutter. It can be advantageously used, for example, in the design and construction of laser scalpels.

Abstract: A dampening device for the continuous dampening of printing forms, particularly in offset printing machines has a supporting pin and a supporting sleeve, which are mounted in side walls of the printing machine. Holders are rotatably mounted on the pin and sleeve, and a transfer roller is removably mounted on the holders. The transfer roller, when mounted, is in permanent contact on one hand with a bathing cylinder, and on the other hand with a spreader roller. The holders are rotatable about the axis of the bathing cylinder.

Abstract: 2-Isopropyl-2-(2-methylphenyl)-5-(N-methylhomoveratrylamino)-valeronitrile ("mepamil") of the Formula I: ##STR1## preferably administered in the form of water-soluble acid addition salts such as e.g. hydrochloride. The claimed compound is advantageously prepared by alkylation of 2-(2-methylphenyl)-3-methylbutyronitrile with 3,3-diethoxypropylchloride. Subsequently, the obtained 5,5-diethoxy-2-isopropyl-2-(2-Methylphenyl)-valeronitrile is mildly, acidically hydrolisized to yield the appropriate aldehye, i.e. 2-isopropyl-2-(2-methylphenyl)-5-oxovaleronitrile. This aldehyde is then reacted with N-methylhomoveratrylamine under conditions of reductive alkylation, suitably by catalytic hydrogenation over a platinum or palladium catalyst or by chemical reduction with the use of formic acid as a reducing agent. The resulting base is optionally converted by neutralization with a pharmaceutically acceptable organic or inorganic acid, i.e. hydrochloric or fumaric acid, into the corresponding acid addition salt.

Abstract: A modular wire feeding device includes a wire feeding block with an electric motor and a planetary wire feeding head disposed in an electrically insulating casing. To the front shield of the electric motor there is rigidly fastened a current and water conducting pipe, a water outlet and gas inlet pipe connected to a front and rear flange. To the rear shield of the electric motor there is mounted an insulating flange which connects the wire feeding device to the wire supply part of a welding hose. The external surfaces of the front, rear, and insulating flanges are shaped as guides of the insulating casing. The casing is made up of two parts with openings provided for the manipulation of the wire feeding head. Above the openings and movably mounted on the insulating casing there is mounted a protective cover for the openings in the casing.