Abstract: A power transmission system includes a motor connected to a variable pulley device via a uni-directional device and an engine connected to a clutch device via a uni-directional device. A pulley device is disengagably connected to the clutch device and connected to the variable pulley device by a belt. A pulley device is connected to the variable pulley device by another belt and the pulley device is connected to a gear box. The variable pulley device includes two disks and a threaded axle connected therebetween. A movable member having two inclined surfaces is movably mounted to the threaded axle so that the two belts are separated by the movable member.

Abstract: A linear electromechanical actuator includes back-to-back screw-type actuators whose screw nuts are secured together. During operation, the leadscrew of one screw-type actuator is rotated while the leadscrew of the other screw-type actuator is locked.

Abstract: A gear arrangement for an offset transmission includes two concentric, counter-rotating face gears in meshing engagement with an engine output shaft, the face gears being connected to respective concentric, vertical counter rotating face gear shafts of unequal length, each shaft ending in a helical spur gear that is in meshing engagement with an output helical face gear. The helical output face gear is connected to the output shaft, thereby completing the offset transmission. The face gear shafts can be coupled together by means of thrust bearings that couple the axial thrusts of one shaft to the other in an opposite direction. The shafts can also be coupled via a preload spring that ensures the torque split between the pinion gears is statically determinant. The gear arrangement can be applied to twin engine designs, with a spur gear train coupling the two engines together via an interconnect shaft.

Abstract: The differential comprises a drive input element, two output cam members each rotatable about a common axis, each cam member having a single angular cam surface thereon of undulating form arranged such that the cam surfaces on the cam members converge towards each other and a plurality of cam followers. The followers have cam engaging end surfaces for imparting drive from the input element to the output cam members. Relative contro-rotation of the output cam members causes the cam followers to slide axially. The cam followers are elongate in direction of the common axis and are slidably supported throughout virtually their entire length by the drive input element. The followers may be arranged closely adjacent each other to provide a degree of mutual support.

Abstract: A transverse cutter for fine papers consists of two mutually co-operating cutter rolls, of which one is directly driven by two electric motors. The upper cutter spindle is driven with the lower cutter spindle by a gear wheel driver at each end, which drive has an inclined set of teeth with constant pitch circle diameter and can be adjusted by axial displacement to be free from backlash. By means of a hydraulic clamping bushing provided between gear wheel and cutter spindle, a radial prestress between the gear wheels is obtained, which makes possible a backlash-free setting around the entire circumference.

Abstract: A compact and simple elevator system is disclosed which does not require a counterweight, a hoistway rope, a winding drum, safety devices such as an emergency stopping device, a speed governor or the like, and in which the installation space as well as the production costs thereof can be reduced, and which is most suitable for installation in private homes.

Abstract: A linearly reciprocable actuator is reciprocated by a mechanism which includes a rotatable part which is operably connected to the actuator to produce linear movement of the actuator in response to rotation of the rotatable part. A fine drive motor is operably connected to the rotatable part for rotating the rotatable part in a precisely controlled manner. The fine drive mechanism is operably disconnectable from the rotatable part to permit the latter to be rotatable independently of the fine drive motor. A coarse drive mechanism is connected to the rotatable part independently of the fine drive motor for rotating the rotatable part in a coarser manner than the fine drive motor when the fine drive motor is operably disconnected from the rotatable part.

Abstract: A wrist for an industrial robot with a movable arm is arranged at the outer end of the robot arm and comprises partly a first housing mounted at the end of the arm and journalled for rotation about a first axis which is substantially parallel with the longitudinal axis of the outer part of the arm; partly a second housing journalled in the first housing for pivoting about a second axis which is substantially perpendicular to the axis of rotation of the first housing; partly a tool holder journalled in the second housing for rotation about a third axis which is substantially perpendicular to the second axis; and partly drive and power transmission devices for generating motion in the first and the second housing as well as in the tool holder about the first, the second and the third axis, respectively. The first housing comprises two interconnected sections which are pivotable in relation to each other about a fourth axis extending substantially perpendicularly both to the first axis and to the second axis.

Abstract: An industrial robot is disclosed which is movable about six revolute axes, and which is modular in nature, to permit it to be configured to efficiently operate in a number of different applications. The robot includes a support stand defining a first primary axis, a waist which is rotatable about the first axis and which defines a second primary axis disposed perpendicular to the first axis, an inner arm fixed to the waist for rotation about the second axis, an outer arm fixed to the inner arm for relative rotation about a third primary axis, and a hand assembly mounted at the end of the outer arm. In addition, the outer arm includes a simplified drive arrangement composed of three concentric tubular members and respective drive motors, for moving the hand assembly of the robot about three additional axes of movement.

Abstract: An industrial robot is disclosed which includes three primary drive units defining three separately controlled axes of movement, and an outer arm assembly having three additional axes of movement. The three primary drive units are interconnected so that a first drive unit defines a vertical axis of movement, and the second and third drive units define horizontal axes of movement which are coaxial. Also, the three primary drive units each include an electrical stepping motor which has its rotor and stator coaxially disposed about the axis of movement, with the rotor and stator being respectively fixed to the output components, to thereby eliminate the need for any torque converting drive train between the motor and output components.

Abstract: A gas turbine plant including one or more gas turbine units comprises a base member formed like a box having square end walls and four side walls joined thereto. An output shaft is journalled centrally in the end walls and carries a gear wheel, the diameter of which is slightly less than the side dimensions of the end walls. The rotor shaft of the gas turbine is, at least partly, enclosed in a housing component having a base portion adapted to be mounted upon arbitrary side wall of the base member. Two gear wheels are mounted upon a lay shaft in the housing. One of these gear wheels meshes with a gear wheel upon the rotor shaft, while the other gear wheel, when the unit is mounted upon the base member, meshes with the gear wheel enclosed therein.

Abstract: A torque support is provided having a casing supported by a pair of symmetrically arranged steering rods which are pivotally mounted to a pair of upwardly slanted guide rods. The guide rods are pivotally supported on a base member. Inter-connecting the guide rods and the steering rods is a tension-compression rod capable of absorbing tensile and compressive forces. All of the elements of the torque support are provided above floor level.The tension-compression rod is constructed as a plurality of elongated sections, separated from one another by gaps. Located within the elongated sections are compressive spring bundles and a shaft bolt which is secured to supporting surfaces of the elongated sections. In this manner, compressive and tensile forces are cpable of being absorbed by the tension-compression rod.

Abstract: A multi-speed hydrostatic drive is disclosed. The drive comprises the combination of a drive unit having at least one output connectable to a motive member and at least first and second inputs. A clutch unit is connected to the first drive unit input, and a first fixed displacement hydraulic motor is connected to the clutch unit so as to drive the drive unit first input through the clutch when the clutch is engaged. A brake unit is connected to the second drive unit input. A second fixed displacement hydraulic motor is connected to the brake unit so as to drive the drive unit second input when the brake is disengaged. A variable displacement hydraulic pump is also provided. A hydraulic circuit delivers the pressurized fluid to the first and to the second hydraulic motors to provide a relatively low speed, high torque drive. Alternatively, the hydraulic circuit can be set to deliver pressurized fluid to the second motor only to provide a relatively high speed, low torque drive to the motive member.

Abstract: A power train infinitely variable from substantially 1:1 ratio to a very high ratio, employing a pair of planetary gear assemblies, each including a sun gear, a ring gear and a planetary carrier having at least one planetary gear operatively connecting the associated ring and sun gears, the planetary gear assemblies having different gear ratios, both planetary assemblies having their sun gears rotatable by a driving member, a driven member operatively connected to the planetary carrier of the assembly of higher ratio, the ring gears being constructed for rotation as a unit, and the planetary carrier of the assembly of lower ratio being variably connectible with the driving member, whereby the overall ratio between driving and driven members is variable in dependence upon the relative speed of the driving member and the planetary carrier of the lower ratio assembly.

Abstract: The invention concerns a transfer case having an input shaft and two output shafts. The transfer case comprises a planetary gear set operatively connected between the input shaft and the two output shafts. With a manipulation of a single shift lever operatively connected to a slide member, the transfer case can be shifted into one of the following three conditions, first condition in which input rotation speed on the input shaft is transmitted to both output shafts at a reduced rotation speed without any differential action between these output shafts; second condition in which the same rotation speed as that on the input shaft is transmitted to both output shafts without any differential action; and third condition in which the same rotation speed as that on the input shaft is transmitted to both output shafts with a differential action between the output shafts.

Abstract: A power transfer mechanism incorporated in a multiple path drive system comprises a transfer case disposed between a source of input torque and a pair of drive axles. Torque is transferred directly to one drive axle and is transferred automatically to the other drive axle through a double-acting roller clutch when required. The transfer case is constructed such that it may be assembled in two configurations; one in which the output shafts are coaxial and offset from the input shaft, and the other in which the input shaft and one output shaft are coaxial, the other output shaft being offset therefrom.