Abstract: A connection bolt (1) for repeated tightening beyond yield point which bolt (1) comprises a head (2) and a shank which shank is provided with a thread, whereby said head (2) of said connection bolt (1) is provided with at least one indication mark (9) at a fixed defined mutual angle position to at least one indication sign (10), which sign (10) is provided on the free shank (5) end relative to the axis (q—q) of the bolt (1) rotation. This system of marking allows to determine the damage of said bolt (1) exactly and to decide about further ability of said bolt (1) to be used next time without any risk of destruction or decrease in quality of a joint.

Abstract: The invention relates to a device for adjustment of the clamping plate height in a curing press steam chamber. The height adjustability allows the clamping plate to be attached to different size tire molds to produce tires of different sizes in a single steam chamber. The device for adjustment of the height of the clamping plate in a steam chamber includes a plurality of hydraulic cylinders between the upper and/or lower part of the steam chamber and the clamping plate within the steam chamber.

Abstract: A tire withdrawing device for removing a tire from a mold chamber includes two rotatable blades. The blades are mounted on pins which are rotatable in bushings. Arms mounted on the pins are connected to a linear motor to rotate the blades for grasping of a finish tire during removal. The withdrawing device is use to grasp the tire as it is moved from the mold onto a conveying device for transporting the tire away from the mold.

Abstract: A device for lifting an upper part of a curing press steam chamber includes rollers which move along guideways. The lifting device allows an upper part of the steam chamber to be lifted off a lower part of the steam chamber and moved laterally to allow easy access to both the upper part of the steam chamber and the lower part of the steam chamber. A linear motor moves the rollers along the guideways to lift the upper part of the steam chamber off the lower part of the steam chamber. The linear motor may be a translating screw or a hydraulic cylinder motor. A longitudinal axis of the linear motor forms an angle with the guideways which is smaller than a right angle at all positions.

Abstract: A method and apparatus are provided for adaptive control of the path of movement of a working tool during a working process wherein an acoustic signal is generated responsive to contact of the working tool with the workpiece and wherein stochastic signals are picked up during the course of the working process. On the basis of characteristic features of these signals the path of the working tool is corrected in order to maintain required conditions of the working process.

Abstract: The invention concerns a control mechanism designed for manipulation with a stressing rod of a stressing unit which is used for fastening and prestressing of bolts, e.g. for flange joints of large pressure vessels, especially for flange joints of nuclear reactor vessels. The drive of the control mechanism of the stressing unit is a pseudo-planetary system of a gear mechanism which has the ability of both manual and mechanical control. A crown gear wheel is equipped with outer teeth and inner teeth. An inserted gear wheel of a driving pinion mates with the outer teeth. Only three planet gear wheels are inserted between the inner teeth of the crown gear wheel and the outer spur teeth of a central gear wheel. The central gear wheel is formed into the shape of a cylindrical shell which is bedded by its lower side, having a certain radial move possibility, on a wire bearing placed on a carrying body.

Abstract: An arrangement for cleaning components by a close ultrasonic field, particularly for cleaning of cylindrical filter inserts provides a strong ultrasonic field in a relatively small space enabling the cleaning of contaminations sticking to the filters. Means are provided for eliminating the influence of a varying strength of the ultrasonic field at different parts of an ultrasonic tool.

Abstract: An acoustic piezoelectric power transducer of sandwich shape with supply conductors pressed into grooves in the electrically conductive metal inserts and/or the piezoelectric plates.

Abstract: An ultrasonic cleaning arrangement particularly suitable for the cleaning of cylindrical filters to remove contaminations of medium sticking ability where the cleaned object is exposed to radiation of a close ultrasonic field while a liquid cleaning medium flows, in the course of cleaning, through the object to be cleaned.

Abstract: Contaminants of oil fillings of technological units using oil as a cooling, lubricating, insulating, or power medium, are removed by periodically applying a separating working cycle and a pressure working cycle in a vessel connected with the oil system of the technological unit, and returning the cleaned oil to the oil system of the unit. In the course of the separating working cycle, gaseous and liquid contaminants in the vessel are brought to boiling by under-pressure generated by a reversible pump; a gas-liquid cushion created thereby above the oil surface in the vessel is displaced from the vessel in the course of the following pressure working cycle, which is caused by the reverse action of the pump, while the cleaned oil is returned to the oil system of the technological unit. Both cycles are repeated as often as required to clean the oil to the desired degree.

Abstract: Tool with automatic exchange of different working fixtures on a main holder of a machine tool, particularly adapted for digitally controlled coordinate machine tools, where the exchange, selection, and clamping of a required working fixture, stored in a storage container of working fixtures, proceeds automatically according to a prior determined program without manual attention by an attendant.

Abstract: Arrangement for the regulation of the height of a liquid level, such arrangement being particularly suitable for the removal of condensate from the regeneration heaters of steam turbines. The arrangement includes a transmitter nozzle for forming a gas-liquid mixture in a first, influx chamber communicating with a tank containing the liquid, a second chamber connected with the influx chamber and containing a two-phase outlet sensor which separates the gas in the gas-liquid mixture, and a system for discharging liquid from the tank including a discharge valve controlled by the pressure of the liquid in the second chamber.

Abstract: Contactless transmission of information about temperatures within a fuel assembly of a nuclear reactor by means of a thermoelement situated in the fuel assembly, the thermoelement generating a magnetic field the intensity of which is proportional to the temperature within the fuel assembly. A harmonic magnetic sensing element disposed outside the fuel assembly for registering the value of intensity of this magnetic field is employed, the sensing element being connected to an arrangement for the evaluation of such. The fuel assembly is provided with a sheath or housing which permits the passage of the magnetic field therethrough.

Abstract: Hydraulic apparatus for the generation of large tensile forces by means of a number of stacked power units, each having a hydraulically energized power cell, the stack of units being disposed in alignment with the member to be stressed. The power cells are connected and parallel, in their surfaces rest against supporting plates which provide a clearance therebetween so as to permit an expansion of said cells when they are subjected to hydraulic pressure. A similarly supported return cell causes the power cells to return to their initial positions when hydraulic pressure is removed from them.

Abstract: Arrangement for sucking-off gases, creating by means of water supplied to an annular nozzle surrounding the outlet of a gas conduit and forming a first hydraulic pump with a vortex, thereby mixing the gas and water thoroughly and sucking off the mixture by a second annular water nozzle into an ejector or second pump extending into a diffuser which terminates below the level of water in a vessel, where separation of the gas and water takes place.

Abstract: There is disclosed a circuit arrangement for regulating the level of a liquid in vessels. The arrangement according to this invention comprises a draining vessel with a draining conduit, a fluid level pick-up device, a compensation pick-up device, and a working element. The main feature of the circuit arrangement is that the compensation pick-up device is connected to the draining vessel above the regulated liquid level and the upper part of the fluid level pick-up device is also connected to the draining conduit above the regulated liquid level. The lower part of the fluid level pick-up device is connected below the regulated level equally to the draining conduit.