Abstract: The medical altitude chamber is constituted by a pressuretight therapeutic chamber communicating with a source of a gas medium under pressure. It also incorporates apparatus for moistening the gas medium in the therapeutic chamber, said apparatus comprising a liquid reservoir whose lower part communicates through an adjustable throttle with the internal space of the jet pump nozzle, and a pressure regulator which has an inlet for communication with the source of the gas medium, a setting inlet for communication with the therapeutic chamber, and an outlet for communication with the upper part of the liquid reservoir.

Abstract: A capacitive humidity transducer wherein an electrically non-conductive base carries at least a pair of electrically conductive coatings which are spaced from each other. A dielectric film which is active with respect to water absorption is also carried by the base and covers at least portions of the coatings, the dielectric film having a dielectric constant the value of which varies as a function of the extent to which water has been absorbed by the dielectric film. An outer electrically conductive, water-permeable layer is carried by the dielectric film with this film being situated at least in part between the coatings and the layer while the latter because of its water permeability permits moisture in the atmosphere to reach the dielectric film. The dielectric film maintains the outer layer permanently out of contact with at least one of the coatings, so that it is possible to measure between these coatings a capacitance which will be indicative of atmospheric humidity.

Abstract: The process according to the present invention relates to the production of ferrovanadium alloys. The process comprises melting a charge containing iron and vanadium with a subsequent reduction of iron and vanadium to give a metal melt. In accordance with the present invention, iron and vanadium are reduced substantially completely. The resulting metal melt is poured into a converter and then purged, through the converter bottom, by means of oxygen blowing at a supply rate of oxygen and for a period of time sufficient to produce a slag containing at least 35% by weight of vanadium pentoxide. Thereafter, the metal melt is discharged from the converter, while vanadium and iron are reduced from the resulting slag by the metallothermal method.

Abstract: A device is proposed for producing deeply desalted water. The device comprises a dielectric housing in which cooled electrodes and ion-exchange membranes are located. The electrodes are rods located parallel with respect to one another in vertexes of at least one regular hexagon with alternating polarity. Each membrane is made in the form of a tube and located concentrically to the corresponding electrode, the polarity of the membrane and of the electrode being the same. The device comprises desalinization chambers for sorption of the salt ions from the water being treated, said chambers being filled with ion-exchange resins. The desalinization chambers are formed by the membranes, located between them, and connected with each other. The device also contains brine chambers for removing the salt ions with the water being passed through the chambers. Each brine chamber is defined by one of the corresponding membranes.The proposed device is small in size, highly efficient, reliable and safe in operation.

Abstract: A method and apparatus for cutting portions having defects therein from lengths of timber includes determining an aligning distance for a given one of the lengths of timber as the timber length moves along a conveyor, the aligning distance being defined by the distance between a cutting line located next to the defect and one of a series of parallel lines which extend in the conveying direction, indexing the timber length in a direction transverse to the conveying direction to align the cutting line with one of the parallel lines and then incrementally moving the timber length in a direction transverse to the conveying direction a member of incremental distances determined by the particular one of the series of parallel lines with which the cutting line is aligned and cutting the timber length along the cutting line.

Abstract: A blank formed of cardboard, corrugated board or other sheetlike material for forming stackable boxes. Upon folding, the blank provides wedge shaped end walls which extend above the side walls for engagement within a wedge shaped groove defined at the end edges of the bottom wall of another box similarly formed located in stacked relationship to the first box.

Abstract: A laser ophthalmological unit comprises a lasing source and an optical sym having a slit source for illumination of the surgery field. This laser and illumination source are housed in a common casing hinged on the bracket of the microscope designed for observation of the surgery field. The emission supply system of said slit source and of the laser are mounted rigidly on said hinged casing but can be adjusted.

Abstract: An apparatus for feeding and bending lug strips which are to be attached to seed plates in electrolytic refining plants includes a tool structure capable of bending an initially flat lug strip around a supporting rod in preparation for fixing free ends of the bent lug strip to an edge region of a seed plate. This tool structure is carried by an operating structure which operates the tool structure so as to move it between an initial starting position where the lug strip is in a flat condition and an end position where the lug strip is bent into a substantially U-shaped configuration, the tool structure bending the lug strip during movement between the starting and end positions thereof. In addition a suitable structure is provided for moving the tool structure between a working station where the above operations take place and a receiving station where a flat lug strip is received from a suitable supply.

Abstract: A surgical apparatus for the simultaneous resection of soft tissues and their suturing with metal staples comprises an anvil and a staple branches, hinge-connected and having longitudinal jaws situated one opposite the other. A longitudinal row of grooves is made on the jaw of the anvil branch for clinching the ends of staples, while slots for the staples with staple tappets placed therein are provided on the jaw of the staple branch opposite said grooves. A plank with a wedge bevel on its end intended for interaction with the staple tappets when ejecting the staples is situated in the slot of the staple branch, and is longitudinally movable therealong. Rotation shafts are set along each branch with needles set perpendicularly to them, intended for grasping the soft tissue.

Abstract: An artificial heart comprising at least one blood circulating pump having a transparent housing divided into two chambers by a diaphragm. One of the chambers is a hydraulic chamber having an inlet valve and an outlet valve which are connected to the circulatory system; the other chamber is a pneumatic chamber provided with a nipple for the intake and discharge of gas. The pump's pneumatic chamber has a transparent conductive coating, for example, of gold, applied onto the internal wall of said pneumatic chamber. Said coating and the surface of the blood circulating in the hydraulic chamber make up a capacitor whose capacity varies due to changes in the volume of the hydraulic chamber. Said capacitor serves as a blood volume transducer. The artificial heart includes a system for controlling the supply of gas to and the discharge of gas from the pneumatic chamber of said pump. The control system comprises an element which is sensitive to variations in the blood volume. Said sensitive element is an RC bridge.

Abstract: An appliance for treating teeth, such as human teeth, by providing them with a reinforcing acid-resistant layer of a tooth decay retarding agent. The appliance includes a vibrator for producing ultrasonic vibrations, this vibrator terminating in an elongated vibratory tip. A casing houses the vibrator and has a tubular open end region in which the tip is at least partly accommodated. This tubular open end region of the casing carries an elastic membrane wall which extends across the tubular open end region of the casing and through which the tip extends so that the tip has a free end situated outwardly beyond this elastic membrane wall. The elastic membrane wall fluid-tightly engages the vibratory tip while surrounding the latter, and the membrane wall maintains this fluid-tight engagement with the tip during vibration thereof.

Abstract: The proposed medicinal preparation comprises a filler and an active principle which is hydrazide of diphenylphosphinylacetic acid of the formula: ##STR1## The filler may be starch and calcium stearate. The preparation is administered in the form of pills containing about 83 percent by weight of the active principle.The preparation of this invention is advantageous over the existing preparations used for treating neurotic and psychic disorders with pronounced vegetative disturbances in that it has a greater regulating effect on vegetative disturbances. The proposed preparation is the most effective for treating temporal lobe epilepsy with psychosensory, psychomotor, emotional and vegetative paroxysms.The preparation is well endured by patients. It produces no complications, nor side effects and can be used over prolonged periods of time for treating both young and old patients.

Abstract: A paper machine has a headbox provided with a slice through which a pulp suspension discharges from the headbox, this slice being defined in part by an upper lip frame. The pulp suspension flows to the slice from a distribution header and a turbulence passage assembly which receives the pulp stock from the distribution header and continues the flow thereof toward the slice. An air tank is provided for containing air under pressure to act on the flowing pulp stock so as to damp pressure fluctuations in the pulp suspension flow, and this air tank is connected in part to the upper lip frame of the slice so that the pressure in the air tank will act on the pulp suspension in the immediate vicinity of the slice.

Abstract: The self-cleaning filter for purifying a liquid from suspended particles has a housing with pipes for the inlet of the liquid to be purified and for the outlet of the clarified liquid, accomodating at least one filtering partition dividing the internal space of the housing into chambers for the liquid to be purified and for the clarified liquid, and means for flushing this partition with a countercurrent of the clarified liquid. The inlet pipe for the liquid to be purified is arranged on the housing within the chamber for the clarified liquid so that its geometric axis is substantially parallel with the plane of the filtering partition and communicates with another pipe received in the chamber for the clarified liquid so that its geometric axis extends centrally of this chamber, substantially perpendicular to the plane of the filtering partition, the latter having made therein an opening the edges whereof are connected to said another pipe.

Abstract: A sheet supporting drum during development in machines for electrostatically preparing printing matrices is disclosed. The drum is provided with front or head and rear or tail grippers, of which the rear or tail gripper is displaceable, wherein the latter comprises a fillet or section carried by arms passing through slots in the drum shell and mounted on a rotable common shaft carried by bearing means that can be angularly displaced about an axis coincident with the drum axis of rotation.

Abstract: In the method of the present invention of sewing a button, simultaneously with guiding the needle thread through the holes of the button and through the cloth and forming from this thread a foot between the button and the cloth, a stem is also formed by wrapping the thread about the foot being formed. To perform this wrapping around the foot being formed with the needle thread, a reserve length of this thread is provided after guiding it through one of the holes of the button and through the cloth, this reserve length being used to wrap around the foot being formed, simultaneously with the successive guiding of the thread through the holes of the button and the cloth.

Abstract: A process for preparing titanium carbide in accordance with the present invention comprises ignition of a mixture consisting of 80-88% by weight of a powder of commercial titanium and 20-12% by weight of finely divided carbon followed by an exothermal reaction of said mixture under the conditions of layer-by-layer combustion with the formation of gaseous by-products; the process is conducted in a porous casing which prevents the mixture from scattering in the course of its intensive cooling, and removing the gaseous products therethrough.The process according to the present invention makes it posible to produce titanium carbide with a content of combined carbon approaching the stoichiometric value (19.5-19.8% by weight), the content of free carbon of 0.08% by weight and oxygen 0.1% by weight. The process according to the invention makes it also possible to use, as the starting materials, commercial products, i.e. products containing impurities.

Abstract: A centrifugal liquid cleaner comprises a vertically extending hollow axle fixedly secured to a base, the axle having an inlet and an outlet for liquid. The axle supports a cylindrical rotor having a casing accommodating a sleeve which is coaxial with the hollow axle and has a band wound in a spiral and fixed to the sleeve, and spacers are mounted in a succession in the radial direction between adjacent turns of the spiral to extend in parallel with the hollow axle, the spacers defining, with the band, apertures for the passage of liquid. The band has longitudinally extending ridges verticaly spaced along the entire height thereof cambering towards the hollow axle. This construction of the centrifugal liquid cleaner enables an improvement of fineness of liquid cleaning by several times.

Abstract: A rotor of a large size vertical hydro-generator, comprising a shaft and a frame with wedge strips attached thereto and provided in their lower portions with a dismountable support means for supporting a laminated rim with poles. The support means includes oppositely directed wedges disposed in a horizontal transverse slot formed on the outside of the lower portion of each wedge strip and partially projecting beyond this slot in the direction of the rim.

Abstract: Myocardial infarction is prevented entirely or its severity is reduced in patients subject to the same by administering to such patients after occurrence of coronary occlusion and prior to the setting in of the myocardial infarction of a myocardial infarction preventing effective amount of a beta-(2- or 4-pyridyl-alkyl)-amine or a non-toxic acid addition salt thereof. Such administration acts to help prevent the onset of the myocardial infarction or acts to reduce the size of any formed infarct.