Abstract: A vehicle power transmission and a vehicle powertrain capable of being continuously controlled over a predetermined range of operation. The powertrain includes two power units, the power transmission unit and a control device for receiving command input and determining performance parameters associated with the operation of the powertrain, an outer transmission and an inner differential gear assembly. The main transmission has two rotatable inputs, each operable connected to one power unit for receiving rotational power and operably connected to a rotatable output so that the rotational speed of the output can vary in proportion to the algebraic mean of the speeds of ratios of the two inputs. The differential gear assembly is arranged internally of the main transmission with a rotatable input operably connected to two differentially rotatable outputs. The output of the main transmission is operably connected to the input of the differential gear assembly.

Abstract: A supplementary power drive system for providing additional power to the drive system of rotary wing aircraft that powers the aircraft main lifting rotor and tail mounted torque compensating rotor or propeller in a manner as avoids overloading the power capacity of the main rotor transmission. The supplementary power system, utilizing the power of a usually installed auxiliary power plant as a source of additional power, bypasses the main engine powered main rotor transmission in providing power to the tail mounted rotor or propeller and main rotor if the main transmission cannot absorb it.

Abstract: An orthogonal differential drive has a main shaft with a main axis. Also included is a primary gear, coaxially mounted on the main shaft, and a secondary gear. The differential drive also has a harmonic drive with a main throughput, a trim throughput, and a harmonic throughput. The harmonic throughput has a speed that is established as a linear combination of speeds of the main throughput and the trim throughput. The secondary gear is coaxially coupled to the main throughput of the harmonic drive. The secondary gear has an axis of rotation positioned transversely to that of the primary gear for engaging the primary gear. Also included is a transfer device spaced from the main axis of the main shaft for interactively engaging the trim throughput of the harmonic drive.

Abstract: Each engine is directly coupled to an engine deceleration device composed of a traction speed change mechanisms and a planetary speed change mechanism, and is decelerated at a desired speed change ratio, and rotate and drive a collector gear and a main rotor shaft. The collector gear rotates and drives accessories and a tail rotor through a second traction speed change mechanism changing speed in inverse number of the speed change ratio of the traction speed change mechanisms. Thus, the rotating speed of the engines can be continuously decelerated at an arbitrary speed change ratio, and an engine deceleration device of small size, light weight, and low loss is realized. At the same time, a power transmission device for helicopters capable of changing the rotating speed of the main rotor at a constant engine rotating speed is realized.

Abstract: A gimbal system includes a pair of stepper motors that drive respective drive trains of a differential drive assembly such as a differential gear assembly. Either the drive ratios or the step sizes for the two motors are offset from each other to provide four modes of operation, including modes for improved resolution and faster slew rate, and two intermediate modes with more balanced resolution and slew rate.

Abstract: The toroidal continuous variable transmission for four-wheel drive automobiles distributes a greater torque to the rear wheels than to the front wheels. The torque of the first driven gear is distributed 50% each to the first output shaft and the second output shaft. The torque of the second driven gear is transmitted 100% to the second output shaft. Hence, when the front wheels are connected to the first output shaft and the rear wheels to the second output shaft, the ratio between torques distributed to the front and rear wheels is about 1:3. In the event that only the front wheels should race reducing the transmitted torque, the torque transferred to the second side gear that is not racing also decreases. The rear wheels, however, are supplied with a torque from the second driven gear and therefore can secure at least 50% of the input shaft torque.

Abstract: A doll action mechanism which comprises a plurality of movable members for a doll or the like, a plurality of rotational drive sources arranged outside of the doll or the like, and a plurality of drive shafts individually connected to the rotational drive sources and the movable members and arranged on a common axis. Further, in another construction, a doll action mechanism has a plurality of movable members and a plurality of rotational drive sources individually coupled to the movable members. The improvement comprises a first rotational drive source for imparting an initial motion, a first movable member enabled to move by the first rotational drive source, a second movable member connected to the first movable member through a planetary gear mechanism, and a second rotational drive source for driving the second movable member.

Abstract: A bevel gear unit comprising a bevel gear (11), a ball bearing (B.sub.1) coaxially mounted on the shaft of the bevel gear (11) and in contact with the back surface (17) thereof, a double spacer including an inner race spacer (12) and an outer race spacer (13) and mounted on the shaft of the bevel gear (11) behind the ball bearing (B.sub.1), ball bearings (B.sub.2, B.sub.3) mounted on the shaft of the bevel gear (11) behind the double spacer, and a bearing nut (15) screwed onto a threaded portion of the shaft of the bevel gear (11) behind the ball bearings (B.sub.2, B.sub.3). The axial length (l.sub.1) of the inner race spacer (12) is made smaller than the axial length (l.sub.2) of the outer race spacer (13) by a preloading allowance (.delta.), and the outer race spacer (13) is provided with threaded holes (t.sub.1) in the rear surface (f.sub.1) thereof.

Abstract: A wrist mechanism for an industrial robot of the type wherein wrist elements make rocking, rocking and revolving motions successively from the driving side to the driven side, which is reduced in quantity of motion transmitting parts and is small in size and light in weight but high in rigidity. The wrist mechanism comprises reduction gears provided at end portions on the joint side of driving side wrist elements which are individually provided in pair and cooperate with driven side wrist elements to constitute wrist joints to be operated by the reduction gears.

Abstract: This invention relates to a synchronous mechanical motor controller for use in robot applications requiring precise and repeatable movements. The synchronous motor controller is an arrangement of separate electric motors driving individual wheels and operating in harmony with each wheel through multiple bevel gear sets having independent servos. A shaft revolution counter allows the robot to learn and repeat its movements. An onboard radio receiver and transmitter allows an operator to remotely teach the robot its movements. The arrangement of electric motors, bevel gear sets, and servos allowing the robot to run straight, turn, or pivot as required and to accurately reverse its steps so as to return to the same point from which it started.

Abstract: The wrist assembly of an industrial robot comprises a first wrist portion (21) provided on the free end of the robot arm (20) and having a pair of projections (22, 23) in parallel with each other on the fore-end thereof. A second wrist portion (24) is provided between the projections of the first wrist portion and supported on both of the projections so as to be rotatable about a first axis (.beta.) intersecting a longitudinal axis of the robot arm at a right angle. A third wrist portion (25) is supported on the second wrist portion so as to be rotatable about a second axis (.alpha.) intersecting the first axis at a right angle, and constructed to allow work attachments to be attached to the front end thereof. A first motor (45) and a second motor (55) are used for driving the second wrist portion and the third wrist portion.

Abstract: A device to guide an object (A) around two axes (R.sub.1 and R.sub.2).A motor (M.sub.1) controls rotation around an axis (R.sub.1) by three gears (51, 70, 71); a further motor (M.sub.2) controls the rotation of a fork joint (C) around another axis (R.sub.2) by two other gears (26, 27). It simultaneously lets run the entire first motor (M.sub.1). The gears are calculated so that the main shaft (72) of the object (A) moves around (R.sub.2), but does not then revolve around (R.sub.1).

Abstract: An improved robotic manipulator of the type having a plurality of serially-connected drive shafts and a mounting surface affixed to one end thereof. The manipulator includes a first shaft rotatable about a first axis coincident with one ordinate of a mutually perpendicualr triordinate system and a first housing rotatable about that first axis, a second shaft rotatably mounted to said first shaft for rotation about a second axis obliquely oriented with respect to said first axis, and a second housing rotatable on the first housing about a second axis. Rotational movement is imparted to the second shaft about the second axis in accordance with rotational movement of a shaft rotatable about the first axis. A mounting surface has a centerline angularly oriented with respect to the second shaft, and a third shaft upon which the mounting surface is attached is rotatable about a third axis angularly oriented with respect to the second axis.

Abstract: A gearbox arrangement for an industrial robot comprises a flange element, a pivoting element and a rotating element adapted to move independently of each other, and having two trains of gears, comprising drive-shafts for connection to respective drive means, for separately driving the said flange element and pivoting element. Reduction gears are inserted between the two gear-trains and the flange and pivoting elements. The trains of gears in the rotating element are branched through the intermediate shafts and lateral shafts arranged with their axes in parallel with the axes of the drive-shafts. Such a structure permits the use of small diameter shafts and gears for a compact arrangement. In addition, it permits the use of spur gears at appropriate locations which are inexpensive and relatively easy to install, maintain and service to keep the low tolerances needed for industrial robots.

Abstract: A rolling line for the stretch-reducing of tubes, has a plurality of rolling stands which are arranged closely one after the other. These rolling stands are driven by a group drive, whereby the rolling stands, or at least a part thereof, are divided into groups, the groups being defined between directly acting drive shafts (111). The stand locations lying between these drive shafts (111) are driven by way of differential gear stages (112), each combining two rotational speeds which are derived by way of gear wheel trains (113-116, 117-120) from the drive shafts (111).

Abstract: An articulated head for an industrial robot has three axes of rotation and three frames, the movements of rotation of which are controlled by only two driving elements carried by the fixed portion of the wrist which is connected to the robot arm.

Abstract: An apparatus is disclosed for driving the two axes (11, 30) of the hand element of an industrial robot in which the casing (12) of the hand element is pivoted around the first axis while resting between two fork arms on the end of the boom (1, 10). Two reduction gears (19, 20) which can be separately driven are provided in the casing (12) and are arranged coaxially to the first axis, the reduction gears being arranged to drive coaxial bevel gears (24, 25)which, in their turn, are engaged with additional bevel gears (28, 29) supported by the casing (12) and extended at a right angle to the previous bevel gears (24, 25), the shaft of one of the bevel gears (28, 29) supporting a flange (31) which rotates around a second rotary axis (30) running at a right angle to the first axis (11).

Abstract: In a vehicle using a differential apparatus for enabling the operator to quickly stop a skid. A set of electric clutches is attached to the idler pinion gears of the differential and to the spider. A centrifugal switch attached to a pinion responds to rapid rotation of the pinion which occurs during skidding to engage the electric clutches which thereby stop the spinning of the vehicle wheels permitting the drive to regain control. A time delay device maintains the clutches engaged for a short time after the centrifugal switch reopens.

Abstract: A manipulator drive has a main support defining a main longitudinal axis, a housing rotatable on the main support about the main longitudinal axis, a head defining a head longitudinal axis and rotatable on the housing about an outer transverse axis crossing the main longitudinal axis, and a holder rotatable on the head about the head longitudinal axis. Respective housing, head, and holder stepdown drive transmissions have outputs connected directly to the housing, head, and holder and inputs and have stepdown transmission ratios of at least 70:1.

Abstract: Disclosed herein is an industrial robot equipped with an articulated arm unit which includes a first arm, second arm, a holder case and a holder. The basal end portion is pivotally attached to a shoulder shaft, which is formed of a first and second shafts disposed on the same axis and rotatable independently from each other. A differential transmission mechanism is arranged over mutually-opposing end portions of the first and second shafts. First drive means is formed by the first shaft and first coupling means so as to rotate the holder. Second drive means is also formed by the second shaft and second coupling means so as to rotate the holder case. The second drive means is also provided with third coupling means, which is also connected to the differential transmission mechanism, so as to compensatively rotate the holder.

Abstract: A split-torque transmission in which a high-speed engine drives a substantially lower speed drive shaft, such as a helicopter rotor drive shaft, comprises a pair of selectively laterally inclined cross shafts for drivingly connecting a corresponding pair of helicopter engines with the helicopter rotor drive shaft. The transmission arrangement achieves a relatively high overall speed reduction, such as required in the transmission of power to the main rotor of a helicopter, with a minimum number of reduction stages, gears, and bearings. The lateral inclination of the cross shafts and the adjustable positioning of the associated gears to vary that inclination permits the engines of a two or more engined helicopter to be relatively widely separated and at the same time compact the drive arrangement in the longitudinal direction.

Abstract: An apparatus for positioning a roll of a roll stand has respective adjustment spindles operatively engageable with the ends of the roll and rotatable about respective axes in one direction to advance the respective roll end and in an opposite direction to retract the respective roll end. A main transmission has respective rotary outputs connected to the spindles, main inputs, and secondary inputs and a relatively strong main drive has respective rotary output shafts connected to the main inputs of the main transmissions for rotating the spindles therethrough. Respective secondary transmissions have outputs connected to the secondary input of the main transmissions and inputs. Individually operable respective relatively weak secondary drives are connected to the inputs of the secondary transmissions for rotating same and rotating the spindles through the secondary and main transmissions.

Abstract: A wire rolling mill in block form, a so-called wire block, with driving bevel gears which are disposed on a longitudinal shaft and can be selectively coupled by means of clutches with the line shaft and with slow speed supplementary drives for each driving bevel gear, each such supplementary drive becoming operational as the associated driving bevel gear is disengaged, so that shut-down drive lines for inoperative rolls are kept in rotating motion. The supplementary drives are engaged by means of axially slideable driving wheels, more particularly driving wheels of bevel gear construction, which mesh with the driving bevel gears in driving connection only when the associated clutch is disengaged.

Abstract: A transmission for a hydraulically driven vehicle comprising a final drive gear casing, a pair of hydraulic motor each having an output shaft connected thereto, the each output shaft being extended into the final drive gear casing and having formed thereon a bevel pinion, a pair of final drive shaft each being rotatably supported by the final drive gear casing and aligned with each other, a pair of bevel gears each fixedly mounted on the respective final drive shaft, each of the bevel gears being adapted to mesh with the respective bevel pinions, a clutch provided between the pair of final drive shaft for directly connecting and disconnecting the same, and a brake mounted on the clutch.

Abstract: An electric powered vehicle drive axle is disclosed. The axle of the present invention comprises a ring gear; a first pinion gear for rotating the ring gear; a differential carried by the ring gear; a pair of axle shafts driven by the differential for rotatably driving a pair of drive wheels; the device supported and enclosed by a housing. A second pinion gear is employed which rotatably engages the ring gear. A first electric motor rotatably connected to the first pinion gear is connected to a power source for rotatably driving the vehicle. A second electric motor/generator is connected to the second pinion gear and electrically connected to the power source. The second electric motor/generator selectively powers the differential or derives power from the differential to recharge the power source as dictated by the power needs of the electric vehicle. A plurality of bevel gears are deployed along the length of the axles.

Abstract: The system permits selective combining of one of a plurality of prime movers with a plurality of propeller shafts by means of a transverse chain drive between the propeller shafts to enable efficient multi-screw ship operation with one engine.