Abstract: In the case of this process, the crankshaft is assembled from individual formed pieces each comprising a crank web and two journal projections. Journal parts belonging together are slid onto a joint sleeve which is plastically deformed by applying pressure, whereas the journal parts themselves are only deformed elastically, and as a result of their springback, they provide the necessary adhesion for the connection. Prior to being joined, the bearing journals and crank journals may be provided with bearing bushes of a material having better tribological properties and/or undivided roller bearings and also undivided connecting rods. Lubricating channels provided in the webs, annular spaces remaining between the sleeves and journals and longitudinal grooves provided in the former permit continuous lubrication of the bearing faces. Key teeth provided at the parts to be joined ensure accurate orientation of the parts relative to each other.

Abstract: A valve device and method for controlling the operation of the valve device, in particular a proportionally acting solenoid valve, consisting of a valve housing in which several pressure fluid chambers provided with pressure fluid connections are present, having two valves which are arranged within the valve housing and are providing with moveable valve members, the valve members being connected to a valve rod which serves for actuation.In order to simplify the construction of the valve, and provide reliable and reproducible detection and control of the valve opening cross section, two valves members (4, 5) and (12, 13) of the two valves are arranged coaxially and are jointly connected to a valve rod (20), actuatable simultaneously with it. A pressure fluid chamber is arranged between the valves.

Abstract: A device for transferring platforms movable on rollers from one conveyor onto another cross-over conveyor, the platforms being driven along the conveyors by motor driven friction wheels positioned along the conveyor so as to contact the outer surfaces of the platform. A pair of friction wheels are mounted on a rotatable swing lever of a rotatable friction wheel assembly so that the frictional wheels engage and drive the platform from one conveyor to the other.

Abstract: A method for assembling an assembled shaft from a tubular or bar-shaped base member (R) and individual slid-on elements (N), especially a camshaft, with the elements being for example cams, gears or bearing bushes. In the method, the elements (N) are slid on to the base member (R) and are held in the required angular position to be fixed on the base member by magnetic forces. An apparatus for carrying out this method comprises a guiding device (13) for guiding the elements into their axial positions and magnetic holding means (5) operable to hold the elements in the required angular position.

Abstract: A method of testing the hardness of a workpiece having a continuously curved outer surface, in particular a pipe or rod, by the penetration method, includes (a) holding the workpiece in a horizontally and vertically fixed position; (b) arranging a machine tool and a hardness testing instrument having a penetration body above the workpiece for movement with respect to the workpiece; (c) linearly scanning a predetermined area of the curved surface of the workpiece for determining the distance between a distance sensor and the curved surface, the region lying in the horizontal path of the machine tool; (d) determining the summit point of the scanned curved surface area from the scanning operation of step (c); (e) selecting the scanned curved area as the test location for the horizontal positioning of the hardness testing instrument; (f) selecting a locus along the scanned curved area of the workpiece as the reference point for the vertical positioning of the machining tool; (g) machining a region into the surfac

Abstract: A printer with a print-head distance-setting device for adjusting the distance (1) between print head (2) and print-material counter support (3) for recording-material carriers (4) of unequal thickness, resting on the print-material counter support (3), including a mechanical sensing member (5) for controlling a print head (2), adjustable in a direction perpendicular relative to the longitudinal direction of the slider carriage motion, where the print head (2) is disposed on a longitudinally movable print-head slider carriage (7), which print-head slider carriage (7) in turn is guided with a pair of parallel guide axles (9), of which one guide axle (9) is supported by way of a pair of eccentric-disposed pins (10) and of which the second guide axle (9) is cross-movably supported in the printer side walls (32).

Abstract: An assembled shaft in the case of which sleeves are inserted into tubular members for the purpose of connecting tubular portions inserted into each other or abutting each other and/or for attaching elements slid on to the tubular members, which sleeves are radially deformable beyond their limit of elasticity by internal pressure application. This assembled shaft includes sleeves each having a cylindrical portion for resting against the tubular member as well as end faces with round apertures for sealing on a reduced diameter.

Abstract: The invention relates to a device for sealing the space between two relatively movable parts, the sealing device being an integral, springy metal member shaped to form a hollow body having a domed top, two spaced apart side walls, and a bottom wall. Extensions are joined to one side wall and to the bottom wall and project in the same direction beyond the housing. The extensions overlie and are secured to one another.

Abstract: A manipulating apparatus includes a first linear axis element (X), comprising two parallel individual axis elements (20a, 20b). The first linear axis element (X) includes a double slider (25, 27). The double slider runs on the profiles of the two individual axis elements (20a, 20b). The double slider is coupled with a drive means of the one individual axis element and runs without drive means on the profile of the other individual axis element. This manipulating apparatus permits the largest possible number of motion possibilities and motion processes along several coordinate directions within a smallest possible space.

Abstract: A heating device for heating of ink in a print head of an ink print device comprises several ink channels ending in exit openings (10). The ink channels (8) are connected to a joint ink volume space (9), with individually controllable electrothermal converter elements (3) coordinated to each separate ink channel (8), where under the effect of the converter elements (3) a droplet-wise ejection of ink occurs from the exit openings (10). The print head is constructed in a layer structure. A further cover layer (14) is applied onto the uppermost cover layer (2, 3, 4, 5, 6) of a substrate (1), delimiting the ink volume space (9) and the ink channels (8) and containing the electrothermal converter elements (3) where the further cover layer (14) serves both as a heating layer for heating the ink and as a temperature sensor layer for determinating the temperature of the ink. The cover layer (14) is contactable from the outside and is covered by a further protective layer (13).

Abstract: A process for allowing the attachment of drive or coupling elements, such as cams, gears, crank webs or bearing elements, such as friction bearing bushes, or complete roller bearings on tubes or tubular portions by hydraulic expansion, for the purpose of producing assembled cam shafts, transmission shafts, crank shafts or the like, with the expansion of the tubes taking place exclusively in the region of the respective elements beyond the limit of elasticity of the tubes, against a permanent elastic prestress in the elements. To relieve the load on the seals limiting the regions to be expanded, a counter pressure which is higher than the ambient pressure is applied to the intermediate or end regions.

Abstract: A force-transmitting, cone-shaped press-fit connection of metallic materials is provided between a shaft, an axle, or a pin and a hub, a disk, a wheel, or the like. An integral joint is formed with an anaerobic adhesive disposed in the residual roughness intermediate spaces of a joint slot adjoining a pressed-in conical seat having an oversize. The axial securing of the cone press-fit connection against loosening is performed predominantly via the integral joint formation.

Abstract: The invention relates to a matrix print head (1) which is set at a fixed distance to a substrate support (2), where a recording substrate (3) is supported on the substrate support (2). An ink ribbon (4) is led between print pins (5) of a matrix pin print head (1) and the recording substrate (3), with a drive (6) provided jointly to the print pins (5) or to each print pin individually. In each case an electromagnetic coil (8) belongs to each print pin (5) and each print pin (5) is movable back and forth within a stroke from a rearward position into a forward position.

Abstract: The present invention relates to a roll stand for a planetary rolling mill having roll housings, stationary support bodies which are mounted on insert pieces, which have at least one rolling segment inserted therein, with hardened segment inserts, and intermediate and work rolls mounted in cages and rotating around the support bodies. Upon their rotation around the support bodies, these rolls are brought against the intermediate rolls and the latter are brought against the support bodies. The rolling surface of the rolling segments is formed by the segment inserts which have a flattened cross-sectional shape, in the region of the shaping zone, differing from the circular cross sectional shape of the support bodies having a rolling surface which can vary in position with respect to the support body by displacement of the segment inserts, individually or in groups, in a direction perpendicular to the axis of the support body.

Abstract: A paper transport device in printers (1), particularly in dot matrix printers, for the feeding of continuous webs (6) by transversely displaceable tractors (7, 8) which are arranged in pairs on the printer frame. The tractor pins (9) engage into the edge perforations of the continuous web (6) and the pin belts (10) are guided over at least one wheel (11) of the tractor (7, 8) and at least one driven tractor wheel (13) is present. The device is equipped with a locking device so that the tractor (7, 8) operating as push means or as pull means is mounted in each case on a drive shaft (14) and in each case prevented from turning on the printer fram (1a) by a projection (16) on the side (15a) opposite the drive shaft (14) or by a swingable tractor flap (24).

Abstract: A device for actuating a tilting lever used in sensing sheet-type recording media includes a tilting lever having first and second arms and being swingably mounted about a pivot axis attached to a frame, from a first reference position to a second reference position. A first permanent magnet cooperates with a magnetized contact region on the first tilting-lever arm and is arranged to rest against the magnetized contact region when the first arm is in the first reference position. A second permanent magnet cooperates with a further magnetized contact region on the second arm and is arranged to rest against the further contact region when the second arm is in the second reference position.

Abstract: A chemisorptive metal alloy includes from about 30% to about 70% by weight of Ti and/or Zr and from about 30% to about 70% by weight of Cu. Optionally, the alloy may also contain from 0% to about 5% by weight of Fe; from 0% to about 10% by weight of Ni; from 0% to about 5% of V; and from 0% to about 5% of Cr.A method of purifying a reactive gas and removing foreign impurities therefrom includes conducting the impurities containing reactive gas, such as chlorine, hydrogen chloride, silane and dichlorosilane, through a bed of the above described pulverized metal alloy and removing the impurities from the gas by chemisorption on the alloy.

Abstract: A solenoid valve battery includes in each case a solenoid valve (9), which exhibits coil contacts and can be constructed advantageously for the variation of the number of device components for the handling of connections and for cable assembly as well as with respect to its device size. A pluggable connector module (13) is furnished for the contacting of the protective grounded conductor (19), of the signal line, and of the neutral conductor (20). At least one protective grounded conductor (19) and/or a parallel running neutral conductor (20) are through-connected and running in the longitudinal extension direction (17) of the strip. The grounded conductor (19) and the neutral conductor (20) can be contacted by plugging the connector modules (13) together in longitudinal direction. A signal line (21) is furnished individually at each connector module (13) and includes a connector clamp (23) at an input (22) and a connection to the corresponding coil contact (20a) at an output (24).

Abstract: A device for closing molds of an injection molding machine for plastic which includes a stationary end plate and a mold clamping plate displaceable on traverses. The stationary end plate is connected to the clamping plate by a toggle mechanism having a double toggle lever. The double toggle lever is actuatable by at least two drive units arranged between the end plate and the mold clamping plate, parallel to a main axis of the machine.

Abstract: A land vehicle in the form of a wheeled semi-trailer and thereon (e.g., a braking device) is provided with an on-board energy having a consumer of energy providing device which is driven, through a controlling apparatus by a compressed air supply or by a flexible drive shaft arrangement connected to a wheel of the semi-trailer.