Abstract: A phasing differential gear assembly is arranged in a housing, for the speed adjustment of an output shaft which shaft may be utilized to control tension in a web on a drum being driven by the output shaft. A driven input shaft having a second end imparts a first rotational speed to a co-axially arranged first end of the output shaft. A first external toothed gear is arranged on the first end of the input shaft, and a second external gear is disposed between the second end of the input shaft and the first end of the output shaft. A third external toothed gear is disposed on the first end of the output shaft. A first flexible gear is arranged radially outwardly of the first and second external gears, and a second flexible gear is arranged radially outwardly of the second and third external gears. A first wave generator is arranged radially outwardly of the first flexible gear, and a second wave generator is arranged radially outwardly of the second flexible gear.

Abstract: A multi-functional energy saving power transmission mechanism has a plurality of miniature motors assembled together into a motor assembly, a down-speed gear set and an output gear set. More than one down-speed gear set can be arranged in sequence for further reducing the speed of the motor assembly and generate a larger torque output. Each down-speed gear set has a gear mounting block with a main central driving shaft. One end of the shaft has a spur gear or an annular gear and the other end has a spur gear. The gear mounting block also has a plurality of gear mounting holes disposed around the central driving shaft. A plurality of minor driving shafts can be selectively engaged with the gear mounting holes so as to make the driving connection between the down-speed gear sets or to the output gear set in a smoother manner.

Abstract: To ensure the power transmission between a driving shaft (42) and two assemblies to be driven, such as the rotor or rotors and the ancillary systems of a gyroplane, a mechanism is proposed, which has a connection shaft (48) constantly engaged on the driving shaft and on device (54) for riving the ancillary systems. An actuator (80) controls a translation of the connection shaft between a first position in which a free wheel (44), interposed between the driving shaft (42) and a device (46) for driving the rotor or rotors, occupies a rotation engagement state and a second position, in which the free wheel occupies a rotation disengagement state. This particularly simple mechanism can be switched from one state to the other, even during the rotation of the driving shaft.

Abstract: A multifunction integrated power unit (MIPU) (10) for use aboard aircraft provides the functions both of an auxiliary power unit and of an emergency power unit while being smaller, lighter, and less expensive than the two units it replaces. Additionally, the integration of both functions in a single unit allows elimination of duplicated service devices and a further reduction in size, cost, and weight in the aircraft itself. The MIPU (10) includes two turbine engines (12, 22) operable under differing conditions, an integrating gear box (34) receiving power from the two engines (12, 22) selectively, and a plurality of accessory devices (36, 38) receiving shaft power from either of the two engines (12, 22) via the gear box (34). The gear box (34) includes a power transfer unit (PTU) apparatus (108) which selectively delivers shaft power from one of the engines (12, 22) to the accessory devices (36, 38).

Abstract: A door operator having a fluid drive motor and a manual override. The bidirectional hydraulic motor connects to a drive shaft through a power train including a shiftable --quill--type manual clutch mechanism which allows an alternate connection of the drive shaft to a manually-operated wheel. When the cable which shifts the clutch for manual drive is pulled, a switch disables the control for the hydraulic motor. When the motor is not provided with pressured fluid from the pump a hydraulic brake engages the motor.

Abstract: An inserter for vacuum installations has a two-part arm provided with a driving and, a single joint and an end for holding an object. The arm can turn in at least one horizontal plane about a vertical main axis disposed in the area of the driving end, and has at least one motor for moving the arm about the main axis and changing the angle between the parts of the arm at the joint.

Abstract: In a main transmission gearbox for a helicopter having two engines, a lifting rotor and an anti-torque rotor, each of the two engines drives a main kinematic chain comprising from upstream down, an input shaft, a twistable shaft, a gear train forming a first reduction stage having a first bevel pinion meshing with a second bevel pinion which drives in rotation a vertical shaft bearing having a third pinion in mesh with a gearwheel which is common to the two main chains and forms with the third pinions a second reduction stage. The torque received at the gearwheel is transmitted to the driving shaft of the main rotor by way of a supplementary reduction stage of epicyclic type. A third chain comprising two input pinions each of which is mounted upon one of the input shafts and an intermediate pinion which drives the driving shaft of the anti-torque rotor, ensures the distribution of power over the two main chains in the event of breakdown of one engine.

Abstract: A torque transmitting wrench assembly comprises a plurality of serially arranged gears positioned between a first tool gear and a second tool gear in a housing. Each of the serially arranged gears includes gear teeth defining an outer idler gear tooth perimeter and at least one annular peripheral bearing surface with a perimeter substantially the same as the outer idler gear tooth perimeter. The housing is formed of two parts and includes at least one recess having an arcuate periphery, for receiving the bearing surface.

Abstract: An industrial robot having a first arm pivotable about an axis and a second arm carried on one end of the first arm for pivot movement about an axis which is parallel to the pivot axis of the first arm. The second arm is composed of an arm body, which carries a rotary member rotatable about an axis normal to the pivot axis of the second arm. A twist body secured to one axial end of the rotary member carries a bend body rotatable about an oblique axis which is slanted with respect to the rotational axis of the rotary member, and the bend body carries a swivel body rotatable about an axis which is slanted with respect to the oblique axis. The twist body is formed at a portion radially offset from the rotational axis of the rotary member with an eccentric cylindrical portion, in which a first pair of shafts for transmitting rotational power respectively to the bend and swivel bodies are rotatably carried in approximately coaxial alignment with each other.

Abstract: A vehicle drive plant comprises at least two prime movers mounted with their shafts aligned at an interposed base block enclosing a gear train communicating the prime mover shafts with a common output shaft. The gear train may include bevel gears at the individual prime mover inputs, being coordinated by at least one intermediate bevel pinion. A spur gear communicating with a mating gear at the output shaft is then mounted at one of the bevel gears. With a four prime mover plant there may be spur gears at the prime mover inputs, the output shaft having an aligned stub shaft extension. The output shaft, as well as the stub shaft, carries a gear wheel having a cylindrical gear rim for cooperation with prime movers located to the same side of the plane of the division as the output shaft, or stub shaft, respectively. Each of last mentioned gear wheels is further united with a bevel gear and the two bevel gears are coordinated by means of at least one interposed bevel pinion.

Abstract: A redundant drive having primary and secondary load paths may have a torque sensor to indicate a failure of the primary load path and make a drive connection for transmitting torque through the secondary load path.The positive engagement torque sensor has a pair of adjacent facing plates connected to coaxial shafts of the secondary load path, with one plate having a series of circularly-arrayed pairs of spaced-apart openings and the other plate having a series of circularly-arrayed movable pins engageable with the first plate and movable within a dead zone between openings of a pair of openings. When there is a failure in the primary load path, the movable pins move into the openings to lock the plates together and provide for torque transmission through the secondary load path.

Abstract: A printing belt extends around a rotatable cylinder having independently rotatable belt drive sprockets at the opposite ends thereof. A torque-assist drive connected with the cylinder is selectively operable for imparting supplemental traction to the belt for preventing relative slippage between the belt and drive sprockets.

Abstract: The invention relates to a drive axle for a motor vehicle, which axle can be driven by an internal combustion engine or an electric motor, according to choice.For the above-mentioned purpose, a changeover gear unit is installed on the axle beam of the drive axle, this gear unit being equipped with one gear unit input shaft for each drive unit, it being possible to connect these drive unit input shafts, individually, to the gear unit output shaft driving the differential gear, coupling being effected by means of a shifting clutch, the axes of the shafts extending at right angles to the axis of the axle beam.The drive ends of the two gear unit input shafts are located on opposite sides of the changeover gear unit, so that the two drive units can be positioned on different sides of the axle and, as a result, the axle loading is configured in a correspondingly advantageous manner.

Abstract: A helicopter transmission system is disclosed in which drive from three engines is transmitted to two output channels each of which is divided by dividing means to drive two output pinions meshed with a common combining gear rotationally fixed to a sustaining rotor drive shaft. Balancing means are provided to balance the torque transmitted by the respective pairs of output pinions and, in the described embodiment, the balancing means comprise a plurality of meshing spur gears arranged with one of the spur gears drivingly connected to one of the engines and a further two of the spur gears are drivingly connected respectively to the two output channels. Conveniently, a further one of the spur gears provides a power take off to an anti torque rotor drive shaft.