Abstract: The conical screw mixer has a mixing vessel tapering toward the bottom region; in it, parallel to the inner wall, a rotationally driven mixing screw runs in the product chamber. At the bottom area a non-rotational compensating coupling is arranged, which is provided outside the product chamber and below the mixing vessel.The seal between the rotating part of the angularly movable coupling and the product chamber is below the mixing vessel.The seal between the rotating part of the angularly movable coupling and the product chamber is effected by the rotating part being sealingly connected with a sealing bell, and external sealing surfaces of the sealing bell, and external sealing surfaces of the sealing bell roll off on a fixed gasket flange.

Abstract: The pneumatically-operated robotic toy includes an internal bellows or air pump which forces pressurized air to flow from the internal air pump or bellows through passageways into hollow arms of the robot. Inasmuch as the arms of the robot include bellows, this flow of air causes the arms to move from an open to a closed position, or vice versa. Air pressure holding joints are provided to permit several degrees of freedom of movement. Alternatively, the internal bellows may be positioned in the head of the robot, and movement of the head will cause the arms to move up and down. A flexible rotatable suction cup base may be provided. A second internal bellows may be provided, either in the torso or in the head, for activation of the suction cup base of the robotic toy.

Abstract: A dynamoelectric machine of the type having a cylindrical rotor including electrical conductors having radial portions and radially extending magnetic portions and including permanent and/or electromagnets to form axial end air gaps between the rotor and the stator, to provide interaction between the magnetic fields in the axial end air gaps and the electrical conductor radial portions and the radially extending magnetic portions to increase the magnetic inductance of the lateral or end stator fields and the armature or rotor.

Abstract: In electrolysis installations which possess in a common tank a plurality of anode and cathode plates electrically connected one behind the other, uniform supply to or flow through the individual cells is of greatest importance. According to the invention, the inflow, but also if possible the outflow, is placed below the liquid level, and a distributor pocket for uniform distribution of the liquid is connected between the inflow or outflow of the liquid and its entrance or exit from the electrolytic tank, respectively. For optimum adjustment of the chemical and physical constitution of the liquid, flow-independent measuring and adjusting of the liquid is achieved by a sensor which is arranged in a by-pass to the cycle line of the etching fluid between the etching tank and the electrolytic cell.

Abstract: A method of electroslag welding consists in mounting parts to be welded with a required gap, assembling a forming device, introducing an electrode into the gap between the parts to be welded, filling the gap with a flux, setting a slag pool with subsequent melting of the electrode and the edges to be welded, and formation of the weld.A flux for electroslag welding contains calcium fluoride, calcium oxide. According to the invention, the flux further contains calcium chloride, the ratio between calcium fluoride and calcium oxide being of 3:1.

Abstract: Apparatus and method of manufacturing taped products with double twist machines are disclosed which include paying off one or more continuous filaments, and paying off one or more tapes, the tapes are filaments are pulled through a pre-twisting apparatus which imparts a number of twists twist to the assembled filaments and tapes to a number required to determine the desired tape tension in the final product, the pretwister speed is about twice the speed of the bow of the double-twist machine.

Abstract: An "outside-in" double twist bow buncher includes a cradle which supports two wire receiving bobbins. Wire guides are provided at both axial ends of the machine for receiving and guiding two separate groups of wires and, with a traverse mechanism, laying each group of wires onto a respective bobbin.

Abstract: A gyratory crusher comprises a housing having arranged therein an adjustment ring with an upper support of a crushing cone provided with a ball joint fixed in position in a cross-piece of the adjustment ring. The crushing cone has a shaft pressed thereinto and inserted by its upper end to the ball joint for the ball joint to be capable of displacement along the shaft. The crushing cone is placed on a spherical surface of a thrust element which bears on a cup member to slide thereon. The lower shank of the shaft is provided with an accentric rotatable by a drive means.

Abstract: A method for determination of rheological characteristics of polymer and disperse systems, comprising the steps of placing a system to be investigated into a gap between two coaxial cylinders, the first cylinder being rigidly secured on the case of the device, while the second cylinder is rigidly connected to an output shaft of a servo drive, subjecting the system to mechanical deformation by tangentially displacing one of the cylinders in relation to the other conditioned by the restricted shear flow of the system, and exposing the system to an electrical field produced in the gap by connecting a voltage source to the external cylinder provided with butt ends transparent for radiation. The specified deformation and double refraction of the system are measured to determine thereby the rheological characteristics of the system being investigated.

Abstract: A polymeric material comprising a solid dispersion of a porous three-dimensional polymer with a pore diameter of 0.002 to 10 .mu.m and a permeability coefficient of from 2.times.10.sup.-7 to 2.times.10.sup.31 2 cm.multidot.sec.sup.-1. This material is produced by reacting formaldehyde with at least one monomer capable of forming, with formaldehyde, a polymer of a three-dimensional structure. The reaction is carried out in the presence of a polymerization catalyst in an aqueous medium at a pH of from 0.1 to 4, while maintaining the polymer concentration within the range of from 20 to 65% by mass. Thereafter the solution with the polymer is maintained for a period sufficient to form a porous polymer in the form a solid dispersion.

Abstract: A pull-out guide for drawers consists of two 2 frame sides, U-shaped guide rails and Z-shaped pull-out rails movable therein, both the guide and pull-out rails being provided with a roller each, and the lower guide legs of the U-shaped guide rails having in their end areas run-in slopes adjoined by run-in stops each, and the front end areas of the upper pull-out rail legs, serving as rolling surfaces for the rollers, having a run-in slope each oriented in the same direction and preferably parallel to the run-in slope in the end area of the guide rail on the frame side. This improves the pull-in and staying closed behavior when drawers of little net weight and small load capacity are involved. Because the legs of both rail pairs of the pull-out guide run parallel, the front blind is approximately jointlessly flush with the frame.

Abstract: An inflatable assembly formed of two superimposed sheets sealed at the peripheries thereof to form a generally closed gas receiving compartment including opposing sheet portions having generally aligned initially unsealed edges which form an opening for receiving a gas conduit during inflation. Adhesive or a double-sided adhesive strip is provided on one of the sheet portions facing the other sheet portion. Premature adhesion between the sheet portion is prevented by a removable protective strip disposed between the adhesive surface and the facing sheet portion. After inflation and removal of the gas conduit and the protective strip, application of pressure to the sheet portions seals the opening to prevent escape of gas therethrough.

Abstract: A microswitch comprises an insulating base, fixed contacts secured on the insulating base (1), a movable contact (4) adapted for selectively engaging the fixed contacts (2, 3) an actuating member (5), and means for shifting the movable contact (14) by the use of the actuating member (5). The means for shifting the movable contact (4) includes an actuating lever (6), an intermediate lever (7) a flat spring (8), and a contact lever (9) all connected in series with one another, the actuating and the contact levers (6and 9) being pivotally connected to the insulating base (1), the ends of the intermediate lever (7) and of the flat spring (8) being connected with one another a bearing up against a limit stop (17), and the contact lever (9) having a free end (12) whereon the movable contact (4) is located.

Abstract: A downhole thermoacoustic device comprises a heater with a terminal chamber, connected to a source or radiator of acoustic oscillation, including a hollow housing having mounted therein a longitudinal shaft carrying coils with cores in the form of a plurality of flat rings of a magnetostrictive material, operable as the active elements adapted to generate acoustic oscillation. Accommodated intermediate the coils is a member for focusing the acoustic field, in the form of a sleeve, while the longitudinal shaft carries a tube-shaped reflector of acoustic oscillation internally of the core of each coil. The top and bottom portions of the hollow housing of the radiator of acoustic oscillation have mounted therein damping elements including sleeves of a resilient material, while a heat-insulating member including a sleeve with a fluted surface is provided intermediate the terminal chamber of the heater and the hollow housing of the radiator.

Abstract: The cooling arrangement comprises spaced apart cooling tubes arranged in a frame and interconnected with metallic tie plates. For decreasing thermal stresses without loss of strength throughout the structure, each tie plate is tangentially welded with its edge portions to the adjacent cooling tubes on both the shell and the furnace sides thereof. Each tie plate may be tangentially welded to one adjacent cooling tube and to the other it may be welded on the portion of its surface defined by an arc between tangents to this arc from the location where the tie plate is tangentially welded. The cooling tubes and the tie plates may be provided with fins and, the tie plates and the fins and as well as the walls of the frame have expansion clearances or slots. The frame is filled with a refractory material serving to protect the whole cooling arrangement.

Abstract: A spindle headstock of a multiple-operation machine tool, whose housing accommodates, in a coaxial and rotatable arrangement, a spindle kinematically coupled to a rotary drive, a tie rod carrying members intended for connection to the shank of a boring head having a swivel carriage, which tie rod is axially adjustable in relation to the spindle, and a bar carrying toothed members for meshing with toothed members mounted on an end of a slide bar whose opposite end serves for radial displacement of the carriage. The bar is kinematically coupled to a drive whereby it is displaced in the axial direction in relation to the spindle. The members of the tie rod, which serve for connection to the shank of the boring head, are mounted on the tie rod so that they can radially reciprocate during location of the tie rod. For radial adjustment of the bar, a bushing is provided on the tie rod, which is axially stationary in relation to the tie rod and kinematically coupled to the spindle and bar.

Abstract: A multilayer coating of metal-cutting tools is composed of alternating layers of two components. One of these is a nitride or carbide of a metal of group IV. The other is a nitride, carbide, boride or silicide of a metal of group VI. The layer thickness of the group IV metal compound is from 0.05 to 0.5 .mu.m, and the layer thickness of the group VI metal compound constitutes 15 to 40 percent of the layer thickness of the group IV metal compound. The multilayer coating is preferably intended for application to metal-cutting tools used for machining high-alloyed materials.