Abstract: A system for representing information data has a scanning device for scanning information data and including a unit for interrogating the information data and formed as a movable interrogating element unit for forming a main flow of impulses corresponding to the information data which have been interrogated by the interrogating element, a unit for forming commands in response to the impulses for moving the interrogating element successively in direction selected from more than two directions with equal probability, a unit for providing deviation of the interrogating element by a limit of a field, and a unit located downstream of the deviation unit for introducing an additional flow of impulses randomly distributed in time, so that the interrogating element can move in response to the impulses of the additional flow and deviate also at any point of the field.

Abstract: In representing information data, an interrogating element which moves in response to an impulse flow formed during the interrogation, displaces in a jump-like manner upon reaching an information field limit, back into the information field to a random point.

Abstract: Air is supplied directly to the area of a subject's nose and mouth when he or she lies on a pillow, through a device which has a plurality of inflatable valve-chambers located under the pillow, so that when the subject's head rests on one of the areas and on one of the valve-chambers the latter is deflated, while another valve-chamber is inflated to let the air from its associated passage exit through its associated outlet directly towards the subject's face.

Abstract: Seeing of objects is performed through an optical system with a stationary main optical axis with deviating an output image of the system away of the stationary main optical axis by jump-like movements with randomly distributed time intervals.

Abstract: The present invention relates to a method and device for evaluating vision in humans. One feature of the present invention resides in a method and a device in which a plurality of symbols spaced from one another are moved and their speed of movement is adjusted so that the symbols become visible by a person to be evaluated as stationary symbols which appear in certain time intervals.At this point, an average statistic frequency of symbol appearance corresponds to the frequency of jumps of the person's eyes in direction of the symbols movement, while the value of the speed of the symbols movement at which they appear as stationary corresponds to an approximate speed of the person's eyes during the jumps.

Abstract: In a device for elevating liquids a heat exchanging vessel to be neated by an exterior source of heat is connected with a discharge pipe arranged to elevate doses of liquid, so that for performing a thermodynamic cycle the liquid to be elevated is used as a working medium, the liquid is introduced into the heat exchanger after an end or before a beginning of each thermodynamic cycle in a quantity which does not exceed a quantity required for one thermodynamic cycle and is heated in the heat exchanger, and issuance of the elevated liquid is performed under the action of pressure difference which acts on the discharge pipe and which has a value not exceeding a value of pressure difference which elevates a dose of liquid.

Abstract: A tele-examination of patients' pulse and blood pressure is performed by automatically measuring the pulse and blood pressure and transmitting electrical impulses of sound impulses corresponding thereto without time or frequency separation via communicating channel, such as a telephone.

Abstract: A stethoscope has two sound transmitting tubular elements with the ends insertable into ears of an examining person, and two sound receiving end pieces applicable onto a body at a distance from one another and communicating with the sound transmitting tubular elements to provide stereo information about sounds inside the body. The stethoscope can be adjusted to reception of mono sounds, and also for providing different sound transmission through the sound transmitting tubular elements.

Abstract: A device for elevating liquids in which liquid is raised in a pipe under the action of a pressure difference which is smaller than a pressure difference of a solid liquid column having a height equal to a height of elevation.

Abstract: A pulse rate monitor has an electronic histogram unit, an averaging unit including a clock generator and two sets of counters with a set of dividers therebetween. Each set of counters and dividers is provided with display devices. Switching and controlling elements are provided to interconnect respective sets and units of the monitor for various modes of operation.

Abstract: In accordance with a method of and a system for representing of information data, the information data are interrogated by a movable interrogating element, a flow of impulses is formed in correspondence with the data which have been interrogated by the interrogating element, and the interrogating element is moved successively in directions selected in response to commands formed by the impulses in directions selected from more than two directions, and the movement of the interrogating element is used for respective purposes.

Abstract: A wind pump has a liquid supply pipe connected with a convex pipe through a Venturi pipe open to wind, and a delivery pipe connected with the convex pipe and provided with a pumping-out element for elevating a liquid portion drawn into the convex pipe, and the pump is provided with a liquid supply delaying element for delaying the liquid supply from the inlet pipe into the convex pipe and subsequent completing the liquid portion in the latter during periods of weak wind. The delivery pipe is composed of a plurality of vertical pipe portions interconnected by intermediate accummulating container elements.

Abstract: A gas-plug type valve has a capillary pipe for introduction of pneumatic starting control signals, a further pipe for introduction of pneumatic locking control signals, and a through-flow pipe connected with these pipes and having four straight sections and three curves which connect the sections with one another, wherein the capillary pipe is connected with a medium curve, and the further pipe is connected with the through-flow pipe in the region between an outer curve closer to an inlet end and the medium curve.

Abstract: An arrangement for elevating liquid by the use of solar and/or wind energy having a pipe immersed in a liquid, a pipe directed upwardly from the surface of liquid and interconnection for entrapment of liquid, with a pressure differential and an air passage formed alternately and repetitively during presence of solar and/or wind energy, is additionally provided with an air purging element formed as a hydraulic valve with upper and lower interconnected pipes of which the upper pipe has an outlet located above the liquid level.

Abstract: An arrangement for elevating liquids with the aid of wind has an upper delivery pipe with an upper end connected to a pumping-out device, a lower supply pipe introducable into a water source and having an upper end connected with a constriction of a Venturi pipe, and a downwardly convex pipe connecting an outlet diffuser of the Venturi pipe with the lower end of the delivery pipe.

Abstract: A hydraulic memory device has two elongated passages for liquid, an input member connected with upper ends of the elongated passages for liquid supply into the latter, and two output members each connected with a lower end of the respective passage, wherein the output members are formed so that a portion of liquid supplied in a preceding step remains in one curved output member, and during a subsequent step of liquid supply the liquid will flow into an elongated passage provided with the other output member.

Abstract: A hydraulic recalculating cell has a substantially vertical inlet portion, an inclined portion connected by its lower end with a lower end of the inlet portion, a further substantially vertical portion connected by its upper end with an upper end of the inclined portion above the first connection, and a divider including two downwardly open pipes connected with the further pipe.

Abstract: An analyzer of impulse processes of heart activity has increased functional possibilities with a portable construction and determines an index of arrhythmia, a total value of arrhythmia and a relative value of arrhythmia.

Abstract: A pipe for elevating a liquid by liquid portions separated by gas gaps has a plurality of passages each having an inner diameter selected so as to form a stable meniscus film at the borders between the liquid portions and the gas portions and each having a plurality of successively arranged wall portions wettable and non-wettable by the liquid.

Abstract: A device for the lifting of liquid solely by the use of solar energy is constructed of two vertically disposed pipes, one pipe extending below the surface of the liquid and the second pipe extending above the surface of the liquid. A third pipe, in the form of a transverse section, joins the top of the first pipe and the bottom of the second pipe, the transverse section being inclined to provide entrapment of liquid therein upon submergency of the first pipe. A liquid inlet is provided at the bottom of the first pipe and an air vent is provided at the top of the first pipe at the junction thereof with the transverse section. A discharge port for liquid is provided at the top of the second pipe. An air pressure differential is established between the vent and the discharge port for forcing liquid from the transverse section to the port.