Abstract: A drive train for a steerable drive wheel of a vehicle includes a spur gear stage and a bevel gear stage in a drive train housing which is supported for pivotal movement about a vertical axis. The drive wheel is driven through a horizontal axis from a vertically arranged motor. The housing is divided so that the axle-base change of the spur gear stage which is necessary when changing the drive wheel width requires different parts only for the part of the drive train housing which surrounds the spur gears. The remaining part of the drive train housing, which contains the bevel gear stage, is always the same. A slewing ring can be integral with the housing part which surrounds the spur gears. Furthermore, an opening for supplying or discharging air to or from the motor chamber can be provided.

Abstract: A pallet magazine for transporting workpieces from a loading station to an unloading station, and possibly past a working station, has two parallel, endless conveyor chain loops supported on and driven by spaced pairs of sprocket wheels having horizontal axes. A plurality of pallets for carrying the workpieces are adapted to rest slidably on the upper sections of the chains and to hang freely from the lower sections of the chains. A further sprocket wheel is provided between the sprocket wheels of each said pair thereof, and a rack adapted to engage the further sprocket wheels is provided on the underside of each pallet. Each pallet has lateral guide rollers with horizontal axes which engage semicircular guide members provided adjacent the sprocket wheels. A guide rail extends between the further sprocket wheels and is received between spaced guide projections provided on the pallet racks.

Abstract: A double-axle drive for trucks of a railway vehicle has a drive motor with a drive shaft extending parallel to the longitudinal axis of the vehicle and a respective gearing mechanism engaged with each end of the drive shaft. Each gearing mechanism is drivingly coupled to a hollow shaft which concentrically surrounds a respective wheel-set axle. The wheel-set axle and hollw shaft are coupled by elastic couplings provided at each end of the hollow shaft. Each elastic coupling includes a coupling half mounted on the hollow shaft and a coupling half axially aligned therewith mounted on the axle. One coupling half has a plurality of radially extending pins and the other has a plurality of radially extending arms, the pins and arms being positioned alternately in a rotational direction. Elastically yieldable elements are provided between the pins and arms, are initially tensioned, and engage surfaces on the pins and arms which are not parallel to the wheel-set axle.

Abstract: A spur gear planetary gearing arrangement capable of a load balance on the teeth of the gears incorporated therein. The sun gear of the planetary gearing arrangement is supported solely on the planetary gears and the planetary gears are, in turn, rotatably supported on a planetary gear carrier. The teeth of the planetary gears are in meshing engagement with an internally toothed ring gear. The ring gear is mounted in a gear box housing. The ring gear is elastically deformable to a specific degree approximately equal with the radial electricity of its tooth system thereon and independent from the housing.

Abstract: Apparatus for rotation of an aggregate independently about two mutually perpendicular axes, in particular for tracking solar collectors. A stationary first drive mechanism includes a housing, an electric motor, a multi-stage planetary gear set, a spur-gear stage and a driven shaft. A rotatable second drive mechanism includes a housing carried at the free end of the driven shaft of the first drive mechanism. The second drive mechanism further includes an electric motor, a multi-stage planetary gear set, a spur-gear stage and a driven shaft. The driven shaft of the second drive mechanism is directed perpendicular to the driven shaft of the first drive mechanism and carries at its ends the aggregates to be rotated.

Abstract: A machine for precision working, for example shaving, of the tooth flanks of a toothed workpiece supported rotatably on a machine frame. A tool carrier carries a multi-toothed tool, for example a shaving cutter, and is supported substantially above the workpiece for rotative adjustment of the crossing of the axes of the workpiece and tool, about an axis perpendicular to the workpiece axis. The tool carrier is guided movably in a guide carrier and is driven for longitudinal feeding of the tool. The guide carrier is suspended swingably about a horizontal axis for spherical or conical tooth working. The guide carrier is supported pendantly from a swivel plate which is swingable and lockable about an axis perpendicular to the workpiece axis for adjusting the feed direction. The tool carrier is guided by a guide arm which is adjustable in its inclination and is securable by a pivot member on the swivel plate.

Abstract: A nonsteerable drive mechanism for a watercraft which includes an upper part arranged within the watercraft and has a drive motor with a downwardly directed driving shaft. A lower part is arranged outside of the hull of the watercraft and has an angled gear arrangement, the driven shaft of which extends horizontally below the waterline in the lower part and has a propeller fixedly secured to its free end. The upper part is resiliently mounted to a base plate and the lower part, independently therefrom, is rigidly secured to the base plate. A fixed closure member closes off an opening through the hull and a part of the base plate encircling the opening of the watercraft, which closure member is sealingly penetrated through by a shaft connection connected to the angled gear arrangement. The power transmission from the upper part to the lower part takes place through an elastic coupling connecting the driving shaft to the shaft connection.

Abstract: In an apparatus for the cutting, deburring or breaking of the side tooth edges of gears with one or two tools which are located on the side of a guide gear and which machine the aforesaid tooth edges. The guide gear meshes with the workpiece, and, in one embodiment, is constructed as a measuring gear. Prior to the actual machining operation, the distance between the axes of the pretoothed workpiece and the measuring gear is measured independently and is made visible, if desired, on an indicating device. In order to avoid incorrect measurement results due to burrs existing on the workpiece, the guide gear can, if desired, have recesses into which extend the burrs.

Abstract: A multi-surface friction bearing construction for a machine part, for example a planet gear of a planetary gear system, which rotates on a stationary pin or the like, the rotating machine part having a loading direction which is stationary relative to the pin. Several bearing surfaces on the circumference of the stationary pin are formed by pitch circles each having a cylindrical surface. The rotating machine part has a circular cylindrical bore. The radii of the cylindrical surfaces each differ from the radius of the cylindrical bore of the rotating part and form points of intersection with the radii of adjacent cylindrical surfaces. The stationary pin also has axially extending grooves in the surface thereof. The rotating part at least in the carrying area of its circular cylindrical bore is of a material having good sliding characteristics and a higher heat expansion coefficient than that of the other portions of the rotating part.

Abstract: A drive mechanism for a watercraft having a surface propeller rotatingly driven by a motor arranged inboard of the watercraft through shafting which extends through an opening in a transom plate on the watercraft. The shafting includes a propeller shaft which is rotatably supported in a support arm which is mounted externally of the watercraft and on the aforesaid transom plate. The support arm is of a unitary construction and has appropriate openings therein to rotatably support the propeller shaft. Thrust bearings are provided on the support arm to absorb the thrust forces generated by the propeller. Due to the unitary construction of the support arm, the thrust forces generated by the propeller are transmitted only through rigid parts onto a flange plate on the support arm which in turn is fixedly secured to the transom plate.

Abstract: A shiftable friction clutch for gear drives, in which a shift collar is arranged axially movably on a carrier sleeve which is mounted on the shaft which must be coupled to a gear, and in which at least one axially movable friction ring is provided, which belongs to a first clutch half and which cooperates through clutch friction surfaces with a second clutch half and which is supported through rolling elements on the carrier sleeve for producing the contact pressure by means of pressure surfaces which are arranged on the front surfaces remote from the clutch surfaces and which are inclined with respect to the plane of rotation. The friction clutch is constructed as a spring-loaded safety clutch, in which the friction members which are pressed onto one another during the starting or engagement operation are supported against a spring.

Abstract: A friction clutch including interleaved compressible friction plates or overlapping conical rings and selectively operable structure effecting engagement thereof. One aspect of the invention relates to the structure for utilizing torque generated between the parts to be clutched for providing the compression force to be applied to the plates or the cone rings. Roller and ramp structure is provided between driving and driven parts responding to torque initially applied to the driving member for generating an axial force which is then applied to the clutch pack compressing structure. The roller has an elongated structure which will permit it to first roll about an axis perpendicular to the axis of rotation of the friction clutch and subsequently slide along its axial length. This structure will prevent or at least considerably reduce the power surges following a complete clutching operation.

Abstract: A method and apparatus for effecting an automated exchange of a tool in hobbing machines. At least a pair of gripping devices are mounted on a shaft for relative sliding movement therealong and for selective locking engagement with the shaft so that a rotation of the shaft will effect a rotary movement of a selected one of the gripping devices. The rotary movement of the selected gripping device is between a storage position and a working position. The gripping device is capable of holding a tool which is to be exchanged for a worn out tool. The other gripping device is generally empty and is first moved into the working position to extract the worn out tool from the milling spindle. Thereafter, the gripping devices are shifted to bring the appropriate device having a new tool therein into a position so that it can be rotated with the shaft to bring the new tool into the working position and inserted onto the milling spindle.

Abstract: A parallel drive shaft arrangement for rail vehicles wherein the output shaft of the electric motor is arranged parallel to the axle. The electric motor effects a driving of the axle through a gear arrangement and a toothed coupling. One side of the gear arrangement is supported on the axle and both the gear arrangement and the motor are connected through pivot levers to the vehicle frame. The electric motor is secured to the gear housing through a rubber-ring spring device surrounding the toothed coupling.

Abstract: A double axle drive for railway trucks of rail vehicles. The axis of rotation of the drive motor extends parallel to the longitudinal axis of the vehicle and extends between the wheel-set axles. The drive motor drives the wheel sets through a bevel gear arrangement. Each bevel gear arrangement has, on the driven side thereof, a hollow shaft which encircles the respective wheel-set axle. The hollow shaft is connected at its two ends through an elastic coupling to the wheel-set axles. The entire drive system is supported on the two axles through four couplings. Each of the four couplings is composed of rotation-symmetrical members, one being connected to the hollow shaft and the other to the axle, and an interconnecting flexible joint sleeve circumferentially spaced around the periphery of the two coupling halves.

Abstract: A machine for working the edge of a tooth on a spur, bevel or similar type workpiece. The workpiece is mounted on a workpiece spindle and is supported for rotation as well as reciprocal axial movement. The workpiece spindle on which the workpiece is mounted is supported in a workpiece headstock. The workpiece headstock includes a system of gearing for effecting a continuous rotary drive of the workpiece spindle or, and in the alternative through the addition of an auxiliary housing having auxiliary gearing therein operatively connected with the main gearing in the machine for effecting an intermittent rotation of the workpiece spindle. As a result, two types of machining operations that were heretofore possible utilizing two separate machines are now possible utilizing one and the same machine.

Abstract: A lid for an upper housing part enclosing a part of a Z-drive for watercrafts. A removal of the lid provides access to an articulated joint coupling to an input shaft to the upper housing part to the output of a drive motor mounted inboard of the watercraft. The lid extends over the entirety of the upper housing part such that its removal provides good access to the articulated coupling and other components within the upper housing part.

Abstract: A device for controlling and positioning a carriage in a tool machine, in particular the feed carriage on a gear hobbing machine. The device utilizes cams oriented one after the other and which operate a plurality of switches to control the advance of the carriage. The end position of the carriage which is controlled by a control switch is determined by two cam carriages. The first cam carriage is positionable with a rough or coarse adjustment relative to the machine frame and the second cam carriage is finely adjustable relative to the first cam carriage. The cam carriages carry the aforementioned cams to effect a control of the movement of the feed carriage path adjacent the workpiece.

Abstract: An apparatus and a method for controlling the braking operation of a machine having a large moment of inertia. The machine is driven by a motor through a coupling device. The control circuitry initiates first an uncoupling of the coupling device followed by a braking of the input side of the coupling device. Thereafter, and after the input side of the coupling has come to a stop, the coupling device is reactivated to couple the output side to the input side. Since the input side is blocked, this will effectively bring the machine to a halt.

Abstract: An improved lift control in a steerable propeller or Z-drive for watercrafts. The drive includes a transmission shaft which extends from the engine to a point below the water level and to the propeller. The transmission shaft is arranged in the housing. For purposes of tilting the housing out of the water and/or trimming the angle of thrust, at least one pressure cylinder is provided and is arranged in the housing which contains the transmission shaft.