Abstract: For the precision working of particularly hardened bevel gears, a method and an apparatus are disclosed in which the workpiece is moved during rolling contact with a bevel-gear-shaped tool having abrasive flanks. Workpiece and tool rotate in meshing relation with their axis spaced and crossed and each connected with a guide gear which also meshing engage and roll with one another. Both the workpiece-tool pair and also the guide-gear pair run each with backlash, however, on opposite flanks, so that the entire combination runs without backlash.

Abstract: A narrow guide gear is mounted on an axially facing side of a gear-shaped tool. The tool effects a precision working of the flanks of gearlike workpieces. The teeth of the tool have an abrasive surface, that is a surface which does not have uniformly directed cutting edges. During dressing of the tool tooth flanks with a gear-shaped dressing tool, the guide gear mates with a guide pinion which is arranged next to the dressing tool. Adjusting structure is provided for relatively rotatably connecting the precision working tool and the guide gear to one another, so that during dressing a forced guiding of the dressing tool exists.

Abstract: Apparatus for the manufacture or working of the tooth system of straight or helically toothed, externally or internally toothed gears with a hyperboloidally or globoidally or similarly formed toothed tool, which has an abrasive surface or the like, wherein a crossed-axes angle is provided. The intermeshed workpiece-tool is guided by a pair of guide wheels. The working takes place on only one flank of a tooth. The workpiece or tool spindle is coupled with a reversible motor. A brake is provided on one of the spindles. A shiftable coupling and additional brakes or centrifugal masses can furthermore be provided.

Abstract: A method for the manufacture or machining of the tooth system of straight or helically toothed, externally or internally toothed, nonhardened or hardened workpiece with a toothed tool, the tooth flanks of which are coated with a cubic boron nitride (CBN). The workpiece and the tool roll along with a single-flank contact and are supported by a guide-gear pair which also roll along with a single-flank contact. The contacting flanks of the workpiece-tool pair are the mating flanks for the contacting flanks of the guide-gear pair. To protect the CNB-coating, the tool is already driven at a speed which is necessary for an optimum chip removal before the tool tooth flanks start to work on the workpiece tooth flanks.

Abstract: Apparatus for the manufacture or machining of gears with a toothed tool having abrasive working surfaces, in which workpiece and tool, during rotation, are supported by the tooth system of a guide-gear pair. The apparatus works with a single-flank contact between workpiece and tool, whereby for changing the tooth flanks which contact one another, one member of the drive chain can be rotated relative to the other members a preselectable or adjustable amount.

Abstract: Apparatus for the manufacture or machining of straight of helically toothed gears with a hyperboloidally or globoidally or similarly formed toothed tool, which has an abrasive or similar surface and which has such an axial dimension that it covers the entire width of the workpiece tooth system. The axes of the workpiece and the tool cross and the workpiece and the tool are coupled to a guide gearing. The workpiece-tool pairing and the guide gearing each have their own (separate) crossed-axes point. Interchangeable gears can be provided between the workpiece-tool pairing.According to a different embodiment, the axis of the guide gearing and the workpiece axis are arranged parallel to one another, also to another axis of the guide gearing and the tool axis. The parallel axes are coupled to one another through master gears and interchangeable gears.

Abstract: An apparatus for manufacturing or machining externally toothed gears using a hyperboloidally or similarly formed, internally or externally toothed tool with abrasive tooth flanks. The tool and workpiece roll on one another about respective axes which cross at a distance. The tool has a sufficient axial dimension so that it is in engagement with the workpiece teeth from one side surface to the other of the workpiece. The workpiece and tool are coupled with guide wheel pairs. Each guide wheel pair runs with potential for backlash, but the overall gearing is such that no such backlash can occur.

Abstract: An apparatus for the transport of rollable workpieces, in particular gears, with a conveyor chain which extends over two return points, on the upper reach of which chain the workpieces rest or roll. Between two horizontal sections of the upper chain reach, which sections lie in different planes, there is provided an inclined section, in the area of which lies the clamping and machining station of a machine tool, to which roll the workpieces. The inclination of this section is changeable by means of a rocker arm, in order to be able to adjust the distance between the clamping device and the conveyor chain to various workpiece dimensions.

Abstract: A mechanical handling mechanism with a small space requirement consists of oppositely rotatable swivel arms, at the one ends thereof are pivotally connected hinge arms, at the other ends of which are pivotally connected a joint head. The joint head carries a gripping mechanism, the position stiffness of which is assured by a sliding joint parallelogram between the swivel arms and the joint head. The swivel arms are functionally connected together, however, they can also be driven individually. In the latter construction, various desired targets can be reached by the gripping mechanism.

Abstract: To fasten the control chain on a drive unit of a controllable drive wheel of an industrial vehicle, a housing part is provided on the top thereof with holes which are arranged in a circle. A chain holder is placed into one of the holes, which chain holder is engaged with both the endmost bolt of one end link and also a tensioning mechanism which in turn is engaged with a further endmost bolt of another end link. Various alternate constructions are provided for the design of the chain holder and the tensioning mechanism.

Abstract: A single-tooth cutter for sloping the axial face of gears, in which the gear which is to be worked performs a continuous or step-by-step rotary movement whereby successive rotations of the single-tooth cutter will cause a working on successive teeth at least one sloped surface, and in which the workpiece and the single-tooth cutter after each workpiece rotation approach one another, until the desired sloped shape is reached, the chip removal occurring through the provision of at least two edges which in peripheral direction are arranged one directly behind the other. A cutter which can also be used for this has two edges which act one directly after the other, which edges can have a different distance from the axis of rotation of the cutter.

Abstract: A gear or rack-shaped tool for precision machining of tooth flanks of gears is provided with a coating of a hard material like diamond or cubic bornitride (CBN). In order to be able to apply this coating without any problems, the tool includes two connected halves. Each half includes a base member with teeth which project axially beyond one side of the base member every second tooth being removed. The projecting teeth of each half project into the gaps created by the teeth removed from the other half.

Abstract: Apparatus for the manufacture or working of straight or helically toothed, externally or internally toothed gears comprising a hyperboloidally or globoidally or similarly formed toothed tool, which has an abrasive or similar surface and which grips the workpiece over the entire width of the tooth. The axes of the workpiece and the tool are vertically spaced and crossed and the workpiece and the tool are each connected to a guide gear, which guide gears are coupled to one another. A control gearing is provided in the connection between the workpiece-tool pairing and the guide gear pairing.

Abstract: An apparatus for orienting the position of a machine tool carriage relative to a stationary machine part, which machine tool carriage is movable in a plane defined by orthogonally related X and Y axes. In a first embodiment, the carriage is freely movable on a holder parallel with respect to the X axis and the holder is arranged freely movably in the stationary machine part parallel with respect to the Y axis. In a different embodiment, two pairs of steering knuckle arms are provided and which are arranged symmetrically with respect to the carriage. Each pair of arms consists of two hingedly connected steering knuckle arms which define a right angle with one of each thereof being hinged to the carriage, the other one to the stationary machine part. Two modifications are described for the design of the joints. The apparatus can be used, for example in machines for the precision working of gears.

Abstract: A method and an apparatus for shaving, rolling or similar ones of the tooth flanks of gears in which a gearlike workpiece which is to be worked is supported stationarily, however, rotatingly and is in a two flank meshing engagement with a toothlike tool. The tool carries out a rectilinear back-and-forth feed movement in a plane, which is parallel with respect to the workpiece axis, a plunge movement perpendicularly with respect to the workpiece axis and a swivelling movement about an axis which is directed transversely with respect to the feed direction. To produce crowned tooth flanks, the plunge feed and the swivelling movement of the tool is changed independently from one another in dependency of the respective position of the tool along the feed path. A rocking device is provided on which is arranged the tool and which also takes part in the back-and-forth feed movement and which furthermore can be driven pivotally about an axis which extends transversely with respect to the feed direction.

Abstract: A pallet magazine for automatically supplying and removing pallets, each carrying a workpiece, to and from the working space of a machine tool. The pallets, which rest freely and with any desired spacing from one another on moving chains which effect the transport thereof, are lifted off the chains at a waiting station and are then moved to the working station where the workpiece is machined. At the same time a pallet at the working station with a workpiece which has already been machined is placed back on the moving chains. For lifting, sliding and moving out or lowering the pallets, there is provided a hydraulically operated slide mechanism, which effects the sliding and moving of the pallets to and away from the working station more quickly than the pallets are transported on the chains.

Abstract: A sliding member having two gripping devices removes a finished workpiece from a machine and at the same time introduces a blank workpiece. The sliding member carries out a rectilinear feed and return movement, for which it is hydraulically driven. All movements of the two gripping device systems are controlled by cams, including (1) opening and closing the finished part gripping device when picking up the finished part, (2) swivelling the finished part gripping device approximately 90.degree., (3) opening and closing the blank gripping device as the sliding member is returned, (4) again erecting the finished part gripping device when outside of the machine, and (5) stabilizing the blank and finished part gripping devices during movement of the sliding member.

Abstract: A joint coupling, in particular for transmitting the motor output in electrically driven rail vehicles to a drive axle, includes a hollow shaft which is provided on a frame or bogie, and the drive axle is enclosed by the hollow shaft and is arranged radially movably with respect thereto. Each of two linkage elements are hingedly connected both to a first flange member which is rigidly connected to the hollow shaft and also to a second flange member which is connected rigidly to the drive axle. The linkage elements are each with their free ends hingedly connected to an intermediate member which surrounds the drive axle and is radially movable with respect thereto. The intermediate member is divided into two halves in a direction transversely to its axis and the axis of the drive axle, which halves are connected releasably to one another.

Abstract: A machine for the precision working of tooth surfaces on toothed workpieces. The machine has a frame, a rotatingly drivable gearlike tool which is arranged substantially above the workpiece on the frame and structure supporting the tool for movement into a tooth engaging relation with the workpiece. Structure is also provided for adjusting a crossed-axes angle between the tool and the workpiece. Guide structure is provided for effecting a change in the spacing between the geometric centers of the tool and the workpiece during a machining operation. The workpiece is stationarily mounted on the frame and all guideways on the frame required for facilitating an adjustment of the tool and during the working operation are arranged substantially above the workpiece. Additional structure is provided for facilitating an adjustment of the axis of rotation of the tool about both horizontal and vertical axes.

Abstract: A machine for the precision working of tooth surfaces on a toothed workpiece stationarily but rotatably mounted on a machine frame, by using a tool, for example a shaving gear, arranged above the workpiece and which is rotatably drivable. The tool is mounted on a tool carrier which in turn is mounted on a guide carrier, which tool carrier is longitudinally movable and which is swingably suspended on a horizontal bolt. The tool carrier has a guide arm which is guided in a pivot member. The horizontal bolt, which for the purpose of adjusting the feed direction can be rotated about a vertical axis, is also adjustably inclinable in a vertical plane to enable the production of slightly conical teeth according to an underpass machining method.