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: 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 rolling mill has a pair of working rolls each provided with one or more sag-compensating back-up rolls on the respective side of the rolling plane having a fixed support beam with a roll shell rotatable about the beam and hydrostatic support means mounted on the beam for exerting pressure against the shell. Two sag-compensating back-up rolls for each working roll define two support planes at an angle to each other. The support planes may be at equal angles to the rolling plane. With different diameter back-up rolls the support plane of the smaller diameter roll may be at a smaller angle to the rolling plane, and the smaller diameter roll may be on the downstream side of the working roll. Lateral support means for the working rolls may be provided by sag-compensating rolls or by hydrostatic support devices acting directly on the working roll surfaces. The lateral support forces may be controlled to counteract the tractive force on the material being rolled.

Abstract: Rolls of a rolling mill have hydraulic pressure exerted on the exterior surfaces thereof by hydrostatic pressure devices which produce hydraulic pressure in the gaps between bearing surfaces of the devices and the roll, and a flow of the hydraulic fluid in the gaps to cool the rolls. The pressure may be applied to press the rolls together, and also to provide lateral support. Different pressures may be applied to devices spaced parallel to the roll axis. Quadrilateral and overlapping rhomboidal bearing surfaces may be employed. A pair of small diameter working rolls may be pressed together by larger diameter pressure rolls and lateral support provided for the working rolls.

Abstract: A roll for rolling mill, preferably a sag-compensating roll having hydrostatic support piston means, is provided with one or more heat-control devices each comprising a piston mounted in a chamber supported by the support beam of the roll and provided with an operating plate facing the inner surface of the roll shell. The surface of the operating plate has grooved ducts connected with the interior of the chamber to supply heat-control liquid to a thin gap produced between the operating plate and the roll shell. Such ducts may terminate short of the boundary of the plate and intermediate ducts may extend to the boundary. With a plurality of heat-control devices spaced in a row, overlapping oblique parallelogram plates may be employed, with connecting pins to prevent relative rotation therebetween.

Abstract: Bearing apparatus to position a smooth-surfaced machine member from another member for relative motion of the two members parallel to that surface while permitting small relative motions thereof normally of that surface in response to changes in applied stress pressing the members together normally of that surface comprises a hollow piston sealingly received in a cylindrical cavity in that other member and with its crown to the exterior of the cavity, the piston having a small-bore passage through the crown between its end faces inside and outside the cavity, a compression spring disposed inside the piston and engaged between the underside of the crown and an adjustable abutment on the other member inside the cavity, a pump to deliver hydraulic fluid at a constant time rate to the cavity, and means to regulate the temperature of the fluid so delivered.

Abstract: The container for the stock suspension is made as a body of revolution with a conical circumferential wall and a conical end wall which defines an acute angle with the circumferential wall to facilitate separation of materials. A compartment is formed in the circumferential wall near the end wall. This compartment is of increasing radial thickness in the direction of rotation of the rotor and terminates at the location of an outlet for heavy impurities.