Abstract: A ball bushing for linear motions comprising a circumferentially extending cage member disposed between an outer sleeve and a shaft or the like. The outer sleeve is characterized by a novel structural arrangement providing ease in mounting. The outer sleeve is a self-contained unit which is easy to handle and suitable for mounting in housings in a manner allowing prestressing of the bushing. The cage has a plurality of circumferentially spaced axially oriented grooves which define closed paths for the rolling elements and includes at least one path in which the rolling elements are loaded. The cage also has at one axial end a projection defining an abutment shoulder for the sleeve. The sleeve comprises a plurality of longitudinal sections of a predetermined length to overlie the grooves in the cage. Adjacent the sections have complementary grooves and ridges formed therein permitting assembly by relative axial displacement to form a closed sleeve encircling the cage.

Abstract: A steel powder suited for powder metallurgical purposes consists of an amorphous to compact-grained, essentially dendrite-free material with irregularly cornered particle shape. Such a steel powder may be produced by causing molten steel to form at least one discrete, relatively thin film on a relatively cold metal surface of great cooling capacity, causing the thin film to solidify extremely rapidly on the metal surface to form a brittle amorphous to compact-grained, in principle completely dendrite-free steel film, and crushing or grinding the brittle film into a powder of an irregularly cornered particle shape.

Abstract: A steel flake product, suitable for being crushed or ground to form a steel powder for powder metallurgical purposes, consists of a plurality of relatively thin, brittle and easily crushed, substantially dendrite-free steel flakes of amorphous to compact-grained structure. Such steel flakes are produced by causing molten steel to form at least one discrete, relatively thin flake-shaped layer on a relatively cold metal surface of great cooling capacity, moving rapidly and substantially across the direction of delivery of the molten steel. Due to the great cooling capacity the layer is made to solidify extremely rapidly.

Abstract: A ball bushing comprising a sleeve, a cage, inside the sleeve adapted to be mounted on a shaft member or the like. The ball bushing has formed therein a number of closed ball paths, the balls being loaded between the sleeve and the shaft in a section or zone of each ball path. The sleeve has a number of longitudinal profiles countersunk in relation to a circle circumscribing the sleeve. The profiles define internal raceways for the loaded balls. The sleeve is also characterized by a generally uniform or constant cross sectional shape along its entire length.

Abstract: An improved reinforcing material for concrete and comprising a multitude of relatively short and substantially straight steel flakes. The steel flakes are of a shape tapering towards the ends of the flakes, and they have a thickness of about 0.1 mm to about 0.5 mm, a maximum width of at least about ten times the thickness, but at least about 2 mm, and a length of at least about 100 times the thickness. They are intended to be uniformly distributed and in principle randomly orientated in the concrete. The most preferred dimensions are: thickness 0.1 to 0.2 mm, maximum width 4 to 6 mm, and length 20 to 80 mm.

Abstract: An improved reinforcing material for concrete is manufactured by causing molten steel to impinge upon a relatively cold metal surface of great cooling capacity, moving rapidly substantially across the direction of delivery of the molten steel, to form at least one discrete relatively thin flake-shaped layer of molten steel on the metal surface, causing the layer to solidify on said metal surface to form a steel flake, and mutually adjusting the parameters which determine the shape and the dimensions of the steel flakes so as to give the flakes a shape tapering towards the ends of the flake and a thickness of about 0.1 mm to about 0.5 mm, a maximum width of at least about ten times the thickness but at least about 2 mm, and a length of at least about 100 times the thickness.

Abstract: A device for transforming a reciprocating linear movement into a rotary movement comprising a first member adapted for reciprocating axial movement relative to a turnable second member, means for displacing said reciprocating first member in opposite linear directions, at least a pair of annular sleeves disposed in a space between said first and second members, each sleeve having a frustoconical tapered surface confronting and adapted for torque transmitting engagement with a corresponding tapered surface on one of said members, the surface of each sleeve opposite the frustoconical surface confronting a surface of the other one of said members and guide means including at least one helical groove in one of said confronting surfaces and a guide element engageable in said grooves, actuation of said one member linearly in one axial direction causing engagement with the frustoconical surface of one sleeve to prevent turning relative to said one member and through said guide means rotation of said other member, ac

Abstract: A coupling for transmitting torque between at least a pair of rotatable members, said members having spaced apart, complementary peripheral surface portions of non-circular cross section, coupling means comprised of elastomer and metal layers and consisting of at least two sections in abutting side by side relation, one surface portion of said coupling means abutting the peripheral surface portion of one of said members and another surface portion of said coupling means abutting the peripheral surface portion of said other member whereby rotation of one member effects through said coupling means rotation of said other member.

Abstract: A manual steering wheel or the like is connected through a rotatable flexible cable and a double-acting free wheeling clutch to a rotatable element controlling the position of a steering member such as a boat's rudder. A servo motor is also connected through the clutch to the rotatable element, and starting, stopping, and the direction of operation of the motor are controlled by electric pole changing spring contacts associated with the wheel. The connection of the steering wheel to the rotatable element is directly through the free wheel element of the clutch, while the servo motor is connected to the rotatable element through the other rotary element of the clutch. This permits the servo motor normally to drive the rudder in response to steering wheel motion, but direct manual steering is enabled should the servo motor operate too slowly or not at all.

Abstract: A ball bushing which comprises a sleeve and a shaft, and balls arranged therebetween. The balls are guided in a cage and, between the sleeve and shaft there are arranged load-carrying strips for the balls, characterized in that the sleeve of the ball bushing is shaped with a number of preferably circular envelope surface extending ridges showing a continuous cross-section basic profile. The interior of the sleeve is of polygon shape and in the middle of the polygon surfaces there are the apertures provided with a bottom intended to receive load-carrying strips for the balls in the loaded zone and also intended to center the cage element which in a corresponding manner is of polygon shape.

Abstract: Sponge iron is produced by a process including a charging step during which an iron oxide is arranged as a stationary bed in a furnace chamber, a heating step during which a hot, preferably non-reducing atmosphere is cased to flow through the stationary bed, and a reduction step during which a hot reducing atmosphere is caused to flow through the stationary bed to reduce the iron oxide to sponge iron. Optionally, there is a final cooling step during which cold non-oxidizing atmosphere cools the sponge iron. The relatively hot atmosphere which has just passed through the stationary bed is counter-currently heat exchanged with the relatively cool fresh atmosphere about to enter the furnace chamber.

Abstract: A ball bush unit, comprising a number of ball races with balls, a holder for the balls and a casing surrounding essentially the holder and the balls, the casing and the holder showing a longitudinal slot, with the characteristic that for tightening the bush against the axle an arched washer provided with a screw is arranged on at least one side of the slot.

Abstract: A wheel and bearing unit for a vehicle comprising inner and outer rings in between which two rows of rolling bodies and sealing means are applied. The outer or inner ring is connected to a member of a brake device while the inner forms a connecting means for the wheel and a shaft. The unit is characterized in that the wheel is mainly a conical shaped disc one side of which is smooth while the other side is provided with connecting means for connecting the disc to the bearing inner ring and brake device parts. The disc is further provided with air cooling apertures having edges which can lead cooling air streams mainly in the direction of the brake device.

Abstract: A roller bearing provided with flanges and having an inner ring, an outer ring and roller elements therebetween, sealed to prevent penetration of foreign matter, and constructed so that at least one of the rings is integral with two flanges extending on either side of the ring.

Abstract: Wheel bearing application, including same for a wholly unloaded, rigid rear shaft, comprising drive means arranged in a sleeve portion for transferring torsional movement from a drive shaft and a bearing consisting of a moment-carrying, play-adjusted, rigid inner-ring-rotated roller bearing. The inner ring comprises two directly adjacent separate rings that are fitted on the sleeve portion and an outer ring of one piece, with rolling bodies arranged between the inner and outer rings.

Abstract: A ball bushing device adapted to be mounted on a shaft, comprising a sleeve element containing a bore defined by an interior wall surface, plural balls within the sleeve, and a raceway structure between the balls and the sleeve element, the raceway structure having curved elastic plate members and having a generally concavo-convex surface facing toward the shaft and the concave surface facing toward the sleeve element.