Abstract: The disclosure concerns a hydroelectric machine including a tube-type hydraulic machine having a bladed wheel which rotates about a horizontal axis and is provided with fixed blades which are encircled by, and connected with, a rim to which the rotor of a surrounding electrical machine is attached. The wheel, rim and rotor form a single rotating unit which is supported in the radial direction without physical contact by at least two hydrostatic centering supporting devices and at least one hydrostatic damping device. At least one hydrostatic load-beaing device may be included for accepting without physical contact a constant portion of the weight of the rotating unit. In addition, the machine may include hydrostatic supporting devices, of the centering type or of both the centering and the damping type, for accepting without physical contact the axial thrusts imposed on the rotating unit.

Abstract: A hydrostatic supporting device with a bearing shoe having a hydrostatic bearing pocket directed towards the sliding surface of the supported part, and with a hydraulic servomechanism between the bearing shoe and the foundation, characterized in that at the front side of the bearing shoe, looking in the direction of movement of the sliding surface, there is arranged at or in the ledge of the bearing pocket a channel which is open towards the sliding surface and is supplied with an additional pressure medium.

Abstract: A supporting device for a mobile part which is subjected to dynamic forces relieves the normal support bearings of the necessity of handling these unusual loads. The device comprises a support element which adjoins the mobile part, and a hydraulic control which causes that element to supply a constant, relatively small supporting reaction under normal conditions, which may produce slow displacements of the mobile part, and to supply an increased or decreased reaction, depending upon the direction of movement, when the mobile part is displaced rapidly by the dynamic forces.

Abstract: A rolling device or roller mill having a controlled-deflection roll possessing a stationary roll support or carrier mounted in a frame of the rolling mill. A tubular roll shell is rotatable about the roll support and bears thereon by means of at least one bearing or support element. The roll shell is provided at its ends with guide members which are rotatably mounted in the roll shell and which are guided on the roll support in the direction of the pressing or disengaging movement of the roll shell. The controlled-deflection roll is equipped with a scraper device having a scraper blade which, during operation, is in contact with the outer surface of the roll shell, the scraper device being rotatably mounted on the frame. At least one of the guide members has a disengaging or lift-off element which, when the roll shell performs a disengaging or lift-off movement from the operative position, abuts a part of the blade support or carrier and raises the blade off the surface of the roll shell.

Abstract: A paper-making machine roll press or mill comprising a suction press roll over which there is trained a press felt, and which simultaneously serves for the direct transfer of a web of paper from a wire. A take-off press roll cooperates with the suction press roll to form a press station. The take-off press roll serves for the transfer of the paper web from the suction press roll and for the delivery thereof to a downstream part of the paper-making machine. An additional press station is provided between the suction press roll and the take-off press roll and is formed by a contact-pressure roll over which there is trained a felt. The contact-pressure roll comprises a hydrostatic flexure adjusting or controlled deflection roll having a shell mounted to be rotatable about its lengthwise axis and displaceable in the press direction relative to a fixed or stationary support.

Abstract: Pressure roller with a non-rotatably mounted axial support about which a roller shell can rotate which is supported in a supporting plane on the support by hydrostatic supporting elements and is mounted to be rotatable and is guided axially and also radially at both ends by means of a guide ring arranged at each roller shell edge, the said guide ring being non-rotatable relatively to the support but capable of displacement axially and along the supporting plane; for holding the guide rings in a desired axial position relatively to the support there is situated at each end of the roller shell a device, at the side of the guide ring, the said device elastically pressing the guide ring in the axial direction towards the respective adjacent edge of the roller shell.

Abstract: Hydrostatic supporting apparatus which supports, without physical contact, a mobile part which moves relatively to a load-bearing part. The apparatus comprises a supporting piston which has at least one hydrostatic bearing pocket which provides a pressure cushion through which the mobile part is supported, and which is urged toward the mobile part by a controlled pressure which increases and decreases, respectively, as the piston moves toward and away from the load-bearing part. Preferably, pressure control is effected by a throttle valve interposed either in a supply path leading from a source of pressure medium to the pressure chamber of a hydraulic supporting motor, or in a feed passage leading from that pressure chamber to the bearing pocket.

Abstract: A controlled deflection roll comprising a fixed support and a hollow shell rotatable about the support and displaceable relative to the support in the direction of a pressure plane. Between the support and the shell there is located at least one hydrostatic pressure or contact element which is effective in the pressure plane and serves for oppressing the roll shell against a counter roll and thus for forming the pressure force of the roll. Additionally, there is provided at least one hydrostatic lift-off element which is effective in the opposite direction with respect to the contact or pressure element and serves for lifting-off the roll shell from the counter roll. The contact element and the lift-off element can be connected by hydraulic lines or conduits to a source of hydraulic pressurized fluid medium.

Abstract: A controlled deflection roll is disclosed comprising a roll shell rotatable about a stationary beam and at least one hydrostatic support element therebetween. The support element is in the form of a piston tiltably guided in a cylindrical bore formed in the beam and the roll is provided with a seal for sealing off the intermediate space between the piston and the wall of the bore. The seal includes a sealing member disposed in a circumferential groove formed in the wall of the bore which is in seal-tight engagement with the piston and is support on at least one of its sides by an annular support member positioned in the groove and extending part way into the intermediate space.

Abstract: Mixer for resin and sand comprises walls which form an inlet for the sand, an annular gap for the sand following the inlet, following which gap is an axially symmetrical mixing chamber and an outlet for the mixture; a supply arrangement with pipes for the separate components of the resin is provided in the mixing chamber, and a rotatable dished member is arranged beneath the pipes; two solids of revolution arranged coaxially one above the other are provided between the mixing chamber and the outlet, between which solids an annular intermediate interstice is left for the mixture, the lower of the solids of revolution limiting the mixing chamber in the downward axial direction and being rotatable; the dished member of the supply arrangement and arranged below the pipes for the components is connected to the lower, rotatable solid of revolution; that surface of the dished member facing the mixing chamber is made at least partially to rise radially outwards, and, spaced from the rising surface of the dished membe

Abstract: Filtration apparatus comprises in a housing an annular filtration chamber into which there is admitted a suspension under pressure and which is formed between an external filtration surface in the form of a body of revolution and an internal filtration surface which is housed therein and is in the form of a body of revolution also; the annular filtration chamber has a suspension inlet at one of the chamber ends and has at its other and a product outlet; the filtration surfaces are connected in each case to a filtrate discharge collector; a rotating mixing-agitating device is arranged in the annular filtration chamber.

Abstract: A controlled-deflection roll having a stationary roll support or carrier and a tubular roll shell rotatable about the stationary roll support. The tubular roll shell bears upon the roll support or carrier through the intermediary of at least one bearing or support element. The roll shell is provided at its ends with guide members which are rotatably mounted in the roll shell and which are guided on the roll support in the direction of the pressing or contact movement or the disengaging or lift-off movement of the roll shell. The controlled-deflection roll is provided with a scraper device equipped with a scraper blade which, during operation, is in contact with the surface of the roll shell, and the scraper device is secured to the guide members.

Abstract: An apparatus is disclosed comprising a strand guide formed by guide plates which are supported and cooled by hydrostatic support elements. The support elements each include a cylinder and a piston which is stressed against the guide plate by pressure fluid supplied to the cylinder. The pistons are each provided with a bearing pad having a plurality of recesses each supplied with fluid at a constant rate which forms hydrostatic support for and cools the guide plates. The forces exerted by the support elements may be controlled by pressure regulating valves in the fluid supply lines leading thereto in response to sensors which sense positional shifts of the guide plates from a set point. The apparatus may also include a controller for the valves which periodically reduces the pressure of the fluid supplied to the support elements sufficiently to allow the casting to move along the strand guide.

Abstract: A hydrostatic support arrangement comprising a pressure chamber for a pressurized fluid medium, and a bearing surface which is pressed against a part to be borne or supported by the pressure of the pressurized fluid medium effective in the pressure chamber, which pressure bears against a support member. The pressure chamber and the bearing surface are constituted by a common section or profile member formed of an elastomeric material adapted to bear on the support member.

Abstract: Deflection control device, having a stationary supporting member; said supporting member comprising a series of hydrostatic supporting elements; said device also having a shell movable transversely in relation to the series of said supporting elements; ducts being provided in said supporting member for supplying or discharging pressure fluid for said supporting elements; a partition wall separating two of said ducts from one another; the position of said partition wall being variable along the series of said supporting elements.

Abstract: A method of, and apparatus for, adjusting the contact pressure of a rolling mill for rolling a web of material, the rolling mill comprising at least one controlled deflection roll equipped with a plurality of hydrostatic pressure elements operable by means of a hydraulic pressure medium. After the web of material has passed through the rolling mill the action of such rolling mill upon the web of material is measured at a number of points or locations across the web and the pressure of the pressure medium supplied to the individual pressure elements associated with the measuring points or locations is adjusted as a function of the measured values such that there is obtained a desired reference value for the action of the rolling mill at the measuring points or locations.

Abstract: Push-type centrifuge, with a rotor which comprises a centrifuging drum and a push plate and a push motor comprising a push piston and a push cylinder, which motor is arranged coaxially of the rotor, while the push cylinder is connected fast to the stationary centrifuge housing, and the push piston rotates with the rotor, characterized in that the shaft of the rotor and the push cylinder of the push motor are mounted one within the other by a double-acting axial bearing.

Abstract: Hydrostatic apparatus for supporting a mobile part which moves relatively to a foundation comprises a bearing shoe having a bearing face containing a pressure pocket, and a hydraulic servomotor which exerts on the shoe a force urging it toward the mobile part. A support element connected with the shoe and the foundation positively holds the shoe against movement in at least one direction along its supporting axis, and its restraint is so correlated with the pressure forces acting on the shoe that the latter is rendered non-displaceable. Depending upon the relative magnitudes of the forces developed by the servomotor and by the pressure acting on the bearing face, the support element may normally be unloaded, loaded in tension or loaded in compression. In the first case, the support element prevents movement of the shoe in opposite directions along the support axis, whereas in the second and third cases it may permit movement of the shoe toward and away from the foundation, respectively.

Abstract: A deflection-controlled roll has a roll shell rotatably mounted about a fixed beam and disposed on a plurality of hydraulic piston support or pressure devices positioned along the roll for exerting forces between the beam and the roll shell. The roll shell is formed of an elastomeric material and is provided with a stiffener insert embedded in the material of the shell for increasing its resistance to circumferential deformation. The stiffener insert may include a metal helical coil extending about the axis of the roll shell or a corrugated tube coaxial with the shell. The roll shell may also include a plurality of annular inserts spaced along the interior of the shell the inner surfaces of which form bearing surfaces for the support devices.

Abstract: Filtration apparatus comprising in a housing an annular filtration chamber which is supplied with a suspension under pressure. The chamber is bounded between an external and an internal surface both of them in a form of a body of revolution, at least one of them being formed as a filtering surface and in the case connected to a filtrate discharge collector. At least one of the surfaces is capable of rotating. The chamber is connected at one end to a suspension inlet and on its other end to a product outlet. The surfaces bounding the filtration chamber are arranged eccentrically relatively to one another whereby a sufficient passage for the product is left free between the surfaces even in the narrowest figure of the eccentrical profil of the filtering chamber.