Abstract: A clutch release bearing including cooperative inner and outer race rings with included rolling elements, and a holding ring having a first flange closely adjacent and facing a second flange of one of said rings, one of said two flanges having spiral grooves or other means for providing with a fluid hydraulic pressure between said flanges, thereby urging said inner and outer race rings together for maintaining a generally fixed axial relationship between them.

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 clutch release bearing assembled with a holding ring axially fixed on a sliding sleeve, and with the outer race of the bearing encircling the sleeve; recesses in the outer race engage projections in the holding ring, thereby allowing the outer ring to have relative radial movement without relative rotational movement with respect to the sleeve, and thus permitting self-centering of the bearing on the sleeve.

Abstract: A bearing assembly having a rolling contact bearing affixed to a housing, an outer race fixed to the housing and an inner race, wherein a driving member, the inner race and a driven member are clamped together by a through-bolt extending through the driving member, the inner bore of the inner race and the driven member. At least one end face of the inner race is provided with axially extending teeth. A stepped sleeve is placed between said one end face and the respective member at that one end face, the stepped sleeve having an axially extending projection and being deformable by engagement with the teeth for positive engagement therebetween. The respective member has a recess into which the projection extends, the stepped sleeve extending into and positively engaging the bore of the inner race.

Abstract: A bearing assembly having a rolling contact bearing with an outer race extending to and affixed to a housing, and an inner race having axially extending teeth on its end faces. A driving member engages one end face, a driven member engages the other end face, and a through-bolt extends through the inner bore of the inner race for clamping the driven member, inner race and driving member together. An auxiliary assembly sleeve is connected to one of the driving or driven members and fitted over the through-bolt, the sleeve being in friction-tight engagement with the inner bore of the inner race.

Abstract: A method of producing metal from an oxidic material wherein final reduction and melting of a pre-reduced oxidic material takes place in the presence of a solid reduction agent in lump form, and wherein the reducing gas leaving the final reduction stage is used for pre-reducing the incoming oxidic material without the presence of solid reduction agent, and wherein extra energy is supplied to the final reduction and melting stage by means of a gaseous energy carrier and that the gas leaving the pre-reduction stage is used as fuel for pre-heating incoming oxidic material.

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: An annular sealing member one peripheral surface of which has a portion or portions bounded by a cylinder and a single enlarged diameter portion projecting radially beyond the cylinder, the sealing member having an annular sealing edge around its other peripheral surface or around one axial end face of the sealing member.

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 self-centering clutch thrust bearing with a resilient ring between the bore of the bearing and a sliding sleeve for damping radial play therebetween.

Abstract: A sliding thrust bearing has one bearing surface separated into a plurality of regions, each of which has a slot extending radially from the circumferential edge thereof. A plurality of grooves extends from each of the opposite sides of the slot, the grooves extending from opposite sides of the slot being inclined in opposite directions with respect to the circumferential direction of the bearing surface. A further bearing surface engages the grooved surface, whereby pressure of a lubricant builds up in the groove to one side of the slot for one direction of relative rotation of the bearing surfaces, and pressure of the lubricant builds up in a groove to the other side of the slot for the opposite direction of relative rotation of the bearing surfaces. The bearing surfaces may be flat or curved.

Abstract: An articulated bearing has an inner ring with a spherical outer surface, and an outer ring with a hollow spherical inner surface corresponding to and engaging the outer surface of the inner ring. Plastic bearing segments are circumferentially arranged in the cylindrical bore of the inner ring. The plastic segments are held by rings having inclined ends engaging the ends of the plastic segments. Circumferential displacement of the segments is prevented by strips affixed in the bore of the inner ring between adjacent segments. The plastic segments extend radially inwardly of the holding rings and strips a distance, in the absence of loading of the bearing, corresponding to the elastic deformation of the segments in the loaded condition. A pin in one of the inner and outer rings is urged into a recess in the other of the inner and outer rings, by means of a spring.

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: Cage for a bearing which is only axially insertable from one side of a bearing which comprises an inner race ring and an outer race ring both provided with an integral flange and rows of rolling elements running in race ways between said rings, each two adjacent rolling elements out of two rows in circumferential direction of the bearing being separated in relation to the next pairs of rolling elements by a bearing cage member, characterized in that said bearing cage-partition member has such a shape that it is elastically compressible at least in radial direction, such that the rolling elements during loading of the bearing both in the same as well as in the adjacent race way can take relatively small distance differences in relation to each other.

Abstract: A fluid bearing system for journalling a rotatable shaft in which an annular housing is fixed about the shaft and is provided with an inlet for the supply of fluid under pressure. At least one bearing compression chamber is formed in the housing and/or the shaft and is distributed about the periphery of the shaft. The housing and the shaft form an integrated throttle control means in which a restrictor opening and a discharge opening is formed between the housing and the shaft for the flow through of fluid from the inlet. The openings are simultaneously varied relative to each other in an opposing manner as a function of the size and distribution of the load placed on the shaft.

Abstract: A loading aperture is provided in the circumference of the race of a rolling bearing for the insertion of rolling members into the race, and an expandable closure is provided for closing the aperture. The closure may have a slot into which a member, such as a ball or wedge, is inserted, for expanding the closure.

Abstract: Method of making cutting tool bits of the indexable insert type with a plurality of cutting edges, characterized by that a bandshaped body, which along at least one of its edges is provided with a portion consisting of a material suitable for carrying out operations, the material being different from the material of the rest of the band, is divided into a number of polygonal bodies constituting cutting tool blanks, the dividing operation being carried out in such a way that at least two corners on each blank are situated in the material which is suitable for carrying out cutting operations, the cutting edges being formed in these corners.

Abstract: A bearing comprising inner and outer members having inner and outer raceways spaced apart to define an annular space, a plurality of rolling elements in the annular space between the raceways, said rolling elements adapted to engage said members at inner and outer raceway contact zones, and means operable during operation of the bearing to cause at least the rolling elements in the load zone to assume a non-negative skew angle within a predetermined angular range; said rolling elements having a skew angle when the rolling element axis and the axis of the bearing are not coplanar and said skew angle being positive when the friction force components in the axial direction arising in each contact between a rolling element and said raceways and acting on the rolling element are so directed that they add onto or are codirectional to the axial component of the normal contact force load carried by said rolling element at that contact.

Abstract: In a bearing assembly for a roll the journal of the roll is supported radially by roller bearings mounted in a stationary support structure. The thrust bearing for the assembly includes a pair of outer rings mounted co-axially at the end of the journal, and a central ring therebetween and supported by the support structure. The rings define a pair of races for tapered roller bearings. The surfaces of the central disk extend normal to the axis of the journal. A support for the central ring includes a bolt co-axial with the journal and extending into a recess at the end of the journal. Apertures are provided in the structure to permit the flow of cooling air at the end of the assembly.

Abstract: Bearing materials having low coefficient of friction and high wear resistance comprise 50 to 90 percent by weight of a powdered solid lubricant bonded by a polymerized mixture of unsaturated organic compounds, containing at least 30% divinylbenzene. The solid lubricant is preferably MoS.sub.2 or a mixture of MoS.sub.2 and graphite. The binder is preferably polymerized technical divinylbenzene, a mixture of isomers.