Abstract: A seal for roller bearings having inner and outer rings, especially for bearings in electrical machines, comprising at least two sealing disks spaced a certain distance apart on one or both sides of the rolling elements between the rings, one of said sealing disks being attached to one of the bearing rings and with its free end engaging in an annular groove in the other bearing ring, and where the gap between the disks is sealed by flock fibers, characterized in that the one sealing disk, on its free edge near the annular groove, has flock fibers projecting perpendicularly from its surfaces, which fibers are arranged to make slight frictional contact with the surfaces of the annular groove and with the opposite lateral surface of the other sealing disk said other sealing disk being slotted and nonrotatably mounted in the annular groove and having, on the lateral surface facing the sealing disk, a layer of flock fibers, the free ends of which are in contact with the sheet metal part of the sealing disk.

Abstract: The invention relates to a conveyor chain having a number of links connected by cardan joints. Each link has a main portion (2) and a fork portion (3, 4) the fork surrounding the main portion of an adjacent link. A rotatable element (6) is arranged in a bore (5) in the main portion and a pin (7) extends into each fork leg from the rotatable element. In order to improve strength and provide largest possible contact surfaces in the members possible against the pin, the pin is fixed in the element (6) and slidable in bores (9) in parts (10, 11) extending from the respective fork legs.

Abstract: A device for fastening e.g. a bearing ring on a shaft comprises a clamping sleeve and a clamping member co-operating with the sleeve. The clamping member and the sleeve contact each other over wedge-shaped surfaces. The sleeve surfaces intended for contacting the bearing ring and the clamping member have such shape that the clamping force acts essentially on that part of the sleeve which co-operates with the clamping member, and no appreciable axial displacement takes place between the sleeve and the bearing ring. Thereby the bearing ring keeps its shape and position during mounting.

Abstract: Calcium carbide is prepared from a powdered lime material. The powdered lime material, possibly together with a reducing agent, is injected with the aid of a carrier gas into a plasma gas generated by a plasma generator. The heated lime material, together with any reducing agent used and the energy-rich plasma gas, is then introduced into a reaction chamber substantially surrounded on all sides by a solid reducing agent in piece form. When the lime material consists of quicklime, this is melted and reduced to liquid carbide and when the lime material consists of powdered limestone, it is burnt directly in the reaction zone to form liquid carbide.

Abstract: A radial ball-and-socket bearing having an elastic outer ring for receiving a ball-shaped element. An annular, axially directed recess is formed in the front surface of the outer ring, and a plurality of axially directed slots extend radially therethrough from the front face. The slots and recess define sets of inner and outer tongues which flex to enable insertion of the ball-shaped element in the bore of the outer ring. At least one of the confronting surfaces of the radially adjacent inner and outer tongues is provided with one or more ribs, which are separated from the facing tongue surface by a gap when the bearing is unassembled and which are nearly or completely closed when the bearing is assembled. The circumferential surface of the outer ring has radial projections in the area of the recess for snapping the outer ring into the bore of a housing.

Abstract: In a rolling bearing assembly including at least two contact metal surfaces, such as a rolling bearing engaging a housing and a shaft, a homogeneous elastic layer is fixedly applied to one of said contacting surfaces, the outer surface of this layer having high density and extreme smoothness for full intimate contact with the contacting metal surface to avoid fretting corrosion between said contacting metal surfaces.

Abstract: A tension or idler roller for a belt drive system has an outer roller for engaging a belt, an inner support body adapted to be affixed to a machine, and a rolling bearing between the outer roller and the support body. The support body is comprised of a pair of identical cup-shaped elements oriented either with their open ends toward one another or their closed ends toward one another, the shells having an eccentric mounting. The inner ring of the bearing may be a separate element or it may be formed in the shells.

Abstract: Gear for chain drives comprising a gear body of cast material having a hub section, a gear rim section with spur teeth, and a web section joining said hub and gear rim sections, and a ring plate of metal embedded in the web section, the outer edge of said plate being near the bottom of the areas between the spur teeth and having axial openings filled with casting material around its periphery, said ring plate having at its outer radial edge, radially outwardly directed projections, which are located in each case in a tooth, and which are embedded in the casting material of the gear body, said projections extending beyond the bottom of the spaces between adjacent spur teeth, and an axial opening formed in the ring plate adjacent each projection and radially below it.

Abstract: A mounting tool for fitting machine elements such as rolling bearings on a shaft.Such elements shall be mounted with a desired radial expansion. In order to obtain this expansion the mounting tool incorporates a first driving up sleeve (5), which is intended to co-operate with tapering sleeves (3,4) which actually mount the element on the shaft. The driving up sleeve (5) is arranged with an axially adjustable spacing ring (6) adjustable to a predetermined position calculated to produce the desired expansion.

Abstract: Recovery of oxide or silicate-bound metals from liquid slag, in metallic or sulphidic form is carried out by reduction with carbonaceous reducing agent, the thermal energy required to maintain the temperature and perform the reduction and sulphidization being provided by blowing gas preheated in a plasma generator below the surface of the slag bath. The vapor of volatile metals is condensed in known manner in a condensor, the non-volatile metals and sulphides formed being collected in the form of molten drops which are allowed to settle out of the slag.

Abstract: In a motion transmitting mechanism comprising a linearly moveable member (3) operating to and from an end stop, a compressible spring (9) is arranged between the linearly moveable member (5) and a supporting surface (10), whereby the spring is compressed when the member (5) approaches the end position and gives a force on the member (5) directed away from the supporting surface when the member is in its end position.

Abstract: A prong-type cage for rolling bearings formed by a ring and circumferentially spaced prongs or posts extending axially from the ring, defining pockets for separating the rolling elements, is designed to avoid being damaged when the mold parts are removed by recesses axially extending from the outer face of the ring axially into the posts.

Abstract: The invention pertains to a process and a device for the production of pocket cages for roller bearings. The starting material is a cup-shaped blank or a tube, and the lateral surfaces of the cage are cut at the same time that the rolling element pockets are stamped out. In this way a work step on a separate processing machine is eliminated.

Abstract: High-strength rods, useful in an acid enviroment, in which the H.sub.2 S partial pressure in gaseous phase may exceed 300 Pa or in which the H.sub.2 S content in liquid phase may have a corresponding equilibrium pressure and/or in which CO.sub.2 or other acidifying substances may be present are manufactured from cold-deformed carbon steel or cold-deformed low-alloyed steel. A preferred composition for the steel is:C O-1.20%Si O-1.0%Mn O-3.0%Cr O-2.0%Ni O-1.0%Mo O-1.0%Cu O-1.0%V O-0.3%Nb O-0.2%Ca O-0.

Abstract: A method and an apparatus are disclosed for heating process air for industrial purposes to a predetermined temperature. In one embodiment, the method comprises passing a first air-flow portion through a plasma generator and thus heating said portion to a temperature sufficiently high to cause the ionization of nitrogen and oxygen in the portion and thus form a plasma gas, immediately thereafter adding to said plasma gas a material containing carbon and/or hydrocarbon in sufficient quantity that when said material is reacted with the plasma gas, the ratio CO+H.sub.2 /CO.sub.2 +H.sub.2 O is at least 0.1 thereby substantially avoiding the formation of nitrogen oxide; and immediately thereafter mixing with the plasma gas, with its content of material containing carbon and/or hydrocarbon, a second air flow in such proportion that the predetermined temperature is achieved in the final air mixture.

Abstract: A bearing designed to fit on a vehicle suspension of the "McPherson" type connects the vehicle wheels to the respective shock absorbers. The bearing is formed by an inner ring, an outer ring, and rolling bodies inserted between the rings, which are both provided with respective integral flanges. One of these flanges is provided with a projecting arm integral with the same and having a recess, able to be connected to a ball pin of a rocker arm of the suspension.

Abstract: Apparatus for making a molded plastic roller with embedded bearings. The roller is formed directly on a bearing or the like by injecting plastic into a mold by way of an umbrella sprue. The tool parts are arranged so that the shearing surface, formed after shearing off of the sprue residue when the mold is opened, is located on the outer surface of the inner collar portion. The molding tool comprises two tool parts for forming the outer surfaces of the rolling body, at least one tool part having a molding portion for forming an annular recess in the roller, and a cylindrical tool part inserted in the bearing, or the like and having a mushroom-shaped head. A back taper of the molding portion for forming the annular recess and the edge of the head together define an annular clearance through which plastic material is injected.

Abstract: A sliding sleeve for a clutch shifter particularly for automobile clutches comprising an elongated hub body made of a plastic material, a thrust collar which protrudes radially outwardly from the hub body and includes contact surfaces for the shift lever of the clutch and for the shift bearing, at least two lugs secured in the hub body and directed radially inwardly adjacent the bore of the thrust collar, each lug being of generally U-shaped cross section to define a groove for the shift lever extending in an axial direction and a thin plastic layer overlying the side surfaces of the groove receiving the projections of the shift lever in the hub body and the adjacent surfaces of the ends of the lugs directed radially outwardly and running parallel to the contact surfaces.

Abstract: In a method for fixedly mounting a machine element such as a bearing on a smooth shaft, the material of the shaft is displaced by forcing a stamping tool into an outer surface of the shaft, in a direction at an angle to the axis of the shaft.

Abstract: A ball bearing arrangement for longitudinal movement on a shaft or the like comprising a sleeve-shaped cage having a plurality of outwardly directed, axially aligned recesses, in each of which a raceway plate is inserted. Each raceway plate has a closed raceway formed thereon. An endless row of balls is arranged between each raceway plate and the cage. The cage has a plurality of guideways connecting the recesses with the cage bore and guiding the load-bearing balls. The angular distances between the load-bearing balls of adjacent endless rows are unequal. The raceway plates are interchangeable. Therefore, in the construction of each variation only a new cage need be provided.