Abstract: A device for taking and injecting microsamples of liquid comprises a casing having a hollow needle accommodating a plunger. The end of the plunger telescoping outside the needle has a plurality of through-passing transverse bores spaced lengthwise of the plunger and having skew axes, the bores serving as cavities for successively taking a plurality of samples. The plunger is connected to a slider having a handle. The device has means for preventing the slider and plunger from rotating about the longitudinal axis.

Abstract: A sealing device for high pressure apparatus designed for the treatment of fabric comprises a housing with two openings for inlet and outlet of the fabric, with two rolls contacting each other accommodated therein and adapted to rotate in the opposite direction for transporting the fabric being treated. Provided inside the housing are also two spaced apart bars arranged parallel to the rolls, each of the bars carrying a sealing member each of which contacts its respective roll. The bar ends made as trunnions rest upon bearings in the opposite walls of the housing and the overhung extensions of these trunnions protruding beyond the housing carry a suspension means for each of said two rolls, the suspension means being adjustable for length. The overhung extensions of the trunnions also carry a means for rocking motion of the sealing members relative to the axes of the bars. Such a construction of the sealing device ensures accurate adjustment of the sealing members with respect to the rolls.

Abstract: In order to form a package which includes a length of fabric which at one side edge region is substantially longer than at its other side edge region, the fabric is wound so as to form a wound body of fabric surrounding a given axis, and along the latter axis there is situated a core which has opposed free end regions which respectively have transversely with respect to said axis maximum dimensions one of which is substantially greater than the other. The core end region which is of the greater maximum dimension supports the fabric at its longer side edge region. The core preferably includes tubular and finned core portions, the latter having fins which project from the axis of the core, and the finned core portion extends partly into the tubular core portion.

Abstract: A rubberized roll for the sealing device of a high-pressure apparatus comprises a shell with pins provided at both ends thereof and protruding with their enlarged portion thereinside, thus defining the shell interior. One of the pins is provided with a through axial duct for a cooling agent to feed into the shell interior while the other pin has a similar duct only in its enlarged portion. Provided at the ends of the enlarged portions are collars forming an annular cavity in each of said enlarged portions, said annular cavity being connected to the axial duct of the respective enlarged portion and to the shell interior. An annular groove for retaining the rubberizing material therein is cut in the outer end face of the collar located at the outer ends of each enlarged portion of the pin. Such a construction of the roller provides for a uniform cooling of the surface thereof and contributes to a reliable adhesion of the rubberizing material to the roll end faces.

Abstract: A method and apparatus for forming solid bodies by removing material from solid workpieces. A workpiece is situated between oppositely rotating tools which remove material from the workpiece, these tools having hollow interiors facing each other and each conforming to the configuration of one half of the finished body. The hollow interiors of the tools have teeth for removing material from the workpiece, and while the tools are rotated oppositely the distance therebetween is due so that from the workpiece a body is gradually formed, this body finally becoming almost completely enclosed within the hollow interiors of the tools, whereupon the latter have the distance therebetween increased so that the body formed thereby can be removed. These tools are adapted to form from a workpiece bodies of full circular or ring-shaped configuration, and the hollow interiors of the tools are provided with raised teeth similar to file teeth, for removing material from a workpiece.

Abstract: The present invention relates to mills for cold rolling of tubes, and more particularly to the improvement of a feeding device incorporated in a tube cold-rolling mill. The feeding device in question comprises a means for pushing the tube to be rolled, a driven continuously moving link arrangement connected with the tube pushing device through a device for transmitting continuous motion of said link arrangement into intermittent motion of the pusher means along the axis of rolling. The transmission device comprises a body, a sleeve slidable in the travelling direction of the pusher device by means of the link arrangement, and two coaxially arranged resilient members with different degrees of rigidity, one of said resilient members being preloaded.The resilient members each having its one end connected to the sleeve, and the other end to the pusher means, the other resilient member being connected to the body.

Abstract: The proposed structural flaw detector is intended for nondestructive testing of continuously moving electrically conducting products, e.g. aluminum, copper and other rods, and comprises two eddy current transducers spaced apart along the path of movement of the products being monitored. One of these transducers is a high-frequency one and is mounted first to detect flaws on the surface, while the other transducer is a low-frequency one and is mounted downstream of the first one to detect structural flaws occurring at a depth under the surface.Arranged between the measuring channels of these transducers is a gating unit blocking the channel of the low-frequency transducer when a surface flaw is detected.

Abstract: A method and apparatus for providing lumber stacks with stickers includes a suitable conveyer which is operated to situate a plurality of stickers over the uppermost lumber layer of a lumber stack during formation thereof. The stickers are carried to a predetermined position over the uppermost lumber layer by way of support members of the conveyer, these support members being substantially L-shaped and having bottom legs which project forwardly from bottom ends of upright legs thereof in the direction of travel of the stickers to the position over the stack, and the upright legs of the support members are situated behind the stickers at this time. A number of removing members are also situated behind the stickers when the latter are in the position over the stack to be deposited thereon.

Abstract: A torsional ultrasonic vibrator particularly adapted for treating teeth by exposing them to ultrasonic waves in the presence of a tooth-decay retarding agent which engages the teeth. A shaft which has a central axis has fixed thereto a blade which projects from the latter axis while having a size small enough to be situated in the mouth of an individual to be treated and large enough to extend along a plurality of teeth in the mouth. A vibrator is operatively connected with this shaft for angularly oscillating the same about the above axis at an ultrasonic frequency.

Abstract: A device for exposing teeth to radiation of ultrasonic waves while the teeth are contacted by a decay-retarding agent, for forming a reinforcing layer of the latter agent on the teeth. In addition to a generator for generating ultrasonic waves, the device includes a support structure which carries a plate capable of transmitting and reflecting the ultrasonic waves. The latter plate is situated between the generator and teeth toward which waves are generally directed from the generator, so that the latter waves are received by this plate which transmits part of the waves through the plate to the teeth at the side of the plate opposite from the generator while another part of the waves are reflected by this plate away from the teeth which receive the transmitted waves, so that in this way the reflected waves may be utilized to treat additional teeth.

Abstract: A rotary tabletting machine comprises a rotor with press tools for compression of tablets arranged around the periphery thereof. Pressure rolls contacting said press tools are mounted on both sides of the rotor. The machine is provided with a means for batching tablet material, a means for controlling said means for batching tablet material, and a hydraulic stabilizer of compressive pressure. The hydraulic stabilizer is equipped with a hydraulic pressure regulator connected with said controlling means and incorporating a check valve, a hydraulic damper and a capillary, the inlet of said check valve being coupled to the hydraulic stabilizer, and the outlet thereof being coupled to said controlling means through the hydraulic damper and to a drain through the capillary.

Abstract: A machine for manufacturing paper, such as tissue paper, includes a twin-wire former made up of a rotary forming roll and a pair of endless fabrics, each of which may be a wire or felt, lapped around the rotary forming roll to provide twin-wire web formation therewith. At the location where these endless fabrics travel beyond the forming roll they diverge from each other to define between themselves a diverging space where one of the endless fabrics has an upwardly directed surface on which the web is carried beyond the forming roll. This latter endless fabric carries the web to a press section where this latter endless fabric travels with the web through a first press nip of the press section defined between an inner press roll situated within the loop of the latter endless fabric and an outer press roll situated outside of the latter loop.

Abstract: The present invention relates to food industry equipment. It is particularly adapted for use in the production of granulated food products, preferably imitation soft caviar. The device is provided with a heated chamber for keeping said solutions or suspensions under pressure, which has through holes drilled along a concentrical circumference in the chamber bottom. Tightly pressed to the bottom from inside is a revolving disk with through holes that are to match the holes in the chamber bottom during rotation of the disk. A vessel is installed under said chamber to contain a forming liquid and to form granules from the solutions or the suspensions fed into the vessel via the holes in the bottom of said chamber. This vessel is cooled and accommodates a pipe for feeding the forming liquid to the vessel and a pipe for taking it out of the vessel together with formed granules.

Abstract: A device is described and shown for supplying tandem line fluid systems, the device comprising pumping means driven by an electric motor and a slide valve for alternately supplying the pressure fluid to either of the two lines, wherein the pump slide valve is controlled by using as the above motor a reversibly rotating type of electric motor, transmitting torque in one direction for controlling through a one-way drive clutch the pump, and in the other direction the slide valve through a second one-way drive clutch transmitting the torque in the opposite direction.

Abstract: A method whereby a hollow organ is compressed from two sides along an intended line of section after which simultaneous dissection and welding of the edges of the cavities formed is carried out by moving a focused laser beam along said line.The degree of compressing the organ's walls is within the range from 1/5 to 1/2 of the initial thickness of said walls.A device for accomplishing said method has a pair of clamping jaws drawn together or apart by means of clamps. One of the jaws serves as a guide path for a carriage, mounted on which is the exit portion of a light guide with a focusing lens. The light guide is connected with a laser. A through slot is made in one of the jaws along the line of intended section and a groove is provided on the other jaw opposite said slot. The walls of the slot and the groove have a surface reflecting the laser beam.

Abstract: A universal Cardan joint coupling device for pivotally connecting an off-shore oil-field working articulated column to a base member resting or anchored on the sea bed, wherein the improvement consists in that at least one of the pivot axes of said joint is connected to two supports rigidly connected to said base member and provided on either side of said joint, by means of two lock-bolt means aligned and displaceable along said axis and adapted to cooperate with bolt-clasps or keepers provided in said supports.

Abstract: The proposed compact-grained diamond material consisting of powdered diamond particles is characterized in that the diamond particles therein are coated with a titanium carbide or zirconium carbide film, which film forms a cellular structure over the entire body of the material, and are bound with copper-titanium intermetallides filling the spacing between said diamond particles.

Abstract: A method of preparing crystalline compounds A.sup.IVA B.sup.VIA, wherein A.sup.IVA is Si, Ge, Sn, or Pb; and B.sup.VIA is S, Se, or Te, which comprises thermal decomposition, at the surface of a substrate heated to a temperature ranging from 250 to 450.degree. C., of an organoelemental compound containing chemically combined elements A.sup.IVA and B.sup.VIA of the general formula R.sub.k A.sub.l IVA B.sub.m.sup.VIA R'.sub.n' wherein A.sup.IVA is Si, Ge, Sn, or Pb; B.sup.VIA is S, Se, or Te; R and R' are hydrogen or an alkyl of 1 to 4 carbon atoms; k = 0-6, 1 = 1-2, m = 1-4, n = 0-4; when 1 = 1, m = 1-4; when 1 = 2, m = 1-2. The method according to the present invention makes it possible to substantially reduce the decomposition temperature of the starting element organic compound at the substrate surface and to obtain the final products which are stoichiometric in the composition thereof. The present invention is useful in the manufacture of semiconductor elements and protective coatings.

Abstract: A method of preparing doped single crystals of cadmium telluride in a single ampoule accommodating a graphite container provided with an opening.Cadmium and a dopant are directly placed in the ampoule, and tellurium is placed in the graphite container. The ampoule is heated at a temperature at which cadmium vapors are formed to penetrate through the opening, together with vapors of the dopant, into the graphite container wherein they react with tellurium vapors and melt to form cadmium telluride. As the temperature grows higher, cadmium telluride is converted into melt which is then subjected to directive crystallization. The resulting crystal is cooled at a rate not exceeding 15.degree. per hour.The crystals thus obtained have the following properties:Lifetime of electron-hole combination .tau. -- up to 3.times.10.sup.-6 s;Electric resistivity .rho. -- up to 10.sup.10 Ohm. cmConcentration of charge carriers less than 10.sup.8 cm.sup.-3.

Abstract: The proposed anode for producing electrolytic manganese dioxide is made of titanium, and its surface is provided with a coating to prevent passivation of the anode. On the anode surface there are provided hollows whose total surface area is not less than 10 percent of that of the anode. Said coating is arranged in these hollows and comprises two layers. The first layer is of a metal selected from the platinum family; it may also be of ruthenium dioxide or platinum oxide and has a thickness of 0.8 to 5 mu; it may also be of lead dioxide and in that case has a thickness of 0.1 to 1 mm. The second layer is of manganese dioxide and has a thickness of 1 to 2 mm.The proposed method for manufacturing the above anode used to produce electrolytic manganese dioxide comprises the following steps. The surface of an anode of titanium is provided with hollows whose total surface area is not less than 10 percent of that of the anode.