Abstract: A power transmission for engines, motors, pumps and the like comprises a power shaft mounted to rotate about a fixed axis, an eccentric in the form of a tapered bar having arcuate ends secured on the power shaft to turn therewith, a power transmission ring having a circular internal bearing surface contacting the arcuate ends of the eccentric, a plurality of cranks connected to the power transmission ring by crankpins, each crank having a crankshaft journaled to turn about a fixed axis which is parallel to the power shaft. Power may be applied to any of the crankshafts by a motor coupled to the crankshaft or power may be applied to any crankpin by a pitman connecting the piston of an internal combustion engine or fluid motor to the crankpin. In either case, the power applied imparts non-rotary, planetary motion to the power transmission ring to turn the eccentric about the axis of the power shaft, thereby rotating the power shaft at the same speed at which each of the cranks is rotated but with more torque.

Abstract: There is disclosed herein a mechanical motion control mechanism which in one form may comprise an input shaft drivingly connected to an output shaft in such a manner that continuous rotation of the input shaft produces varying rotational movement of the output shaft characterized by an initial dwell period, an acceleration period, a constant velocity period, a deceleration period and another dwell period. The input and output shafts may be drivingly connected by means of a gear secured to the input shaft which is in meshing engagement with a second gear supported at one end of a pivot arm, the other end of which is secured to the output shaft. Rotational and revolving movement of this second gear is controlled by the interaction of a plurality of cam followers engaging a cam surface so as to allow rotational, revolving, and various desired combinations of such movements in response to rotational movement of the first gear.

Abstract: A mechanism to generate a polygonal path such as a square with much greater accuracy than is presently possible. This is accomplished with the use of only circular gears or their equivalent, that is to say, without expensive specially machined parts. The mechanism includes first, second and third rotating members on spaced axes with connecting means between said members and a support frame and an eccentric member mounted on the third rotating member on a fourth axis displaced from the axis of the third rotating member.

Abstract: An automatic transmission is provided in which the torque from the motor is converted and coupled to the load via n (typically n=3) intermediate mechanisms, each delivering power to the load with a constant phase difference of .phi.=360.degree./n between successive deliveries. Three different intermediate mechanisms consisting of springs, springs and a crankshaft, and levers with variable lever arms are provided. These systems have no frictional or hydraulic or other dissipative clutch mechanisms, and are regenerative in that power not delivered to the load goes back to the motor. Also, there are no discrete gears, and as the torque required by the load varies, the torque conversion is accomplished automatically and continuously as if an infinite number of gears were provided. The system also has infinite gear ratio capability in reverse as well as in forward direction.

Abstract: A mechanical movement is provided for converting between linear and rotational movement and includes a frame adapted to move only along a linear path of travel. A first rotatable member is adapted to bear against the frame in such a manner that the first rotatable member is free to rotate with respect to the frame. A second rotatable member is adapted to bear against the first rotatable member in such a manner that the second rotatable member is free to rotate with respect to the first rotatable member in an eccentric fashion. A third rotatable member is affixed to the second rotatable member and is adapted to rotate therewith about a fixed axis. Means are provided for minimizing the sideward thrust on the first and second rotatable members so that linear movement of the frame will be converted to rotational movement of the third rotatable member and so that rotational movement of the third rotatable member will be converted to linear movement of the frame.

Abstract: The motion translation mechanism of the invention includes a crankshaft having a crank arm with an integral eccentric pin. A circular linkpiece is provided which has an opening positioned eccentric to the center axis of the circular linkpiece and positioned within the circular linkpiece eccentric opening. A displacement member with flat bearing surfaces is mounted for reciprocating motion and has a circular opening. The circular linkpiece is positioned within the circular opening of the displacement member, whereby reciprocating motion transmitted to the displacement member is converted to rotary motion of the crankshaft via the apparatus just enumerated.

Abstract: A mechanism for generating a square output motion utilizing a continuous constant speed rotary input. A reaction member such as an internal or external ring gear concentric to a first axis is provided together with first and second rotating members, the second being mounted for rotation on the first rotating member on an axis spaced from the first axis. An output member is mounted on the second rotating member and a means is provided for connecting for rotation the second rotating member and the reaction member. Input rotation of the second rotating member causes the output member to follow a square path.

Abstract: An internal combustion two stroke engine is provided having at least one cylinder within which a piston reciprocates. The engine is joined to a gear box which includes a ring gear. A pair of gears having diameters half that of the ring gear move within the latter. At least one of said pair of gears is connected to a piston by a pin extending between the piston and the periphery of said gear. An additional pair of gears are fixed to respective ones of the first-mentioned gear pair and are operatively joined to a pinion to which a drive shaft is secured. A turbine and filter arrangement is positioned on the side of the engine opposite the gear box whereby exhaust gases from the engine are directed to the turbine to develop power at an output drive shaft joined to the turbine and to filter pollutants from the gases.

Abstract: A combined epicycloidal and harmonic motion generating mechanism which comprises a support frame mounting a prime mover coupled through a gear reducer to drive a primary rotary member about a fixed first axis on which a sun gear is concentrically disposed. The primary rotary member carries one or more roller gears that are engaged by the sun gear such that the roller gears rotate about a second axis which is parallel to the fixed first axis and movable with respect to said first axis as the primary rotary gear is driven by the electric motor. Each roller gear has an upper portion on which is mounted a roller adapted to movably engage a slotted section formed in a plate member adapted to be driven by the roller for rotation about the aforementioned fixed first axis such that the motion of a selected point on the plate varies in a combined epicycloidal and harmonic manner relative to the velocity of the primary rotary member.

Abstract: A windshield wiper drive mechanism having a hypocycloidal input and an oscillating crank output. A multiple component linkage is disposed between the input and output to convert the linear motion from the input to oscillating motion for the output. The linkage includes one member having a gear segment portion thereon, another member having an abutment surface thereon and a lost motion connection between the members. A parking mechanism including a gear rack and a stop member is operable, during parking of the wipers, to engage the gear segment and the abutment surface respectively thereby enforcing relative rotation between the members, as permitted by the lost motion connection, so that the output is oscillated through an extended arc to facilitate depressed parking of the wipers.

Abstract: A vacuum blower-type mobile unit for shredding leaves and other garden debris. The unit comprises a pair of coaxially disposed rotors operated at respectively different speeds, the blades of the two rotors being separated by a minimum practical axial clearance to provide shredding action. Shredding is further enhanced by stationary radial blades fixed to the casing adjacent the input to the slow speed rotor, and a circular plate formed to include a large number of exit guide vanes including fixed blades disposed adjacent the output from the high speed rotor. The speed differential between the rotors and the shapes of the blades cooperate to create between them a high velocity axial stream of air and debris which moves smoothly through the machine, depositing the product in comminuted form in a bag or other container.

Abstract: A composite crank mechanism including two interconnected coacting crank elements whose movements are timed by gears in a relation causing the radii of the two elements to be additive, and have a maximum combined effective crank radius in both of two opposite dead center positions, and to have a reduced combined overall radius in intermediate positions.

Abstract: A four-axis gyro stabilized inertial reference system. The system comprises a nested gimbal configuration, which includes a platform and three successively larger and concentrically disposed inner, middle and outer gimbals and an outer casing. The platform and inner, middle and outer gimbals are each configured to permit rotation about an associated axis with that axis being perpendicular to the corresponding axis of the neighboring gimbal or platform. The system further includes a platform stabilizing means for maintaining the platform in a substantially fixed spatial orientation, independent of the spatial orientation of the outer casing and over a predetermined range of angular rates.

Abstract: A mechanical counterbalance assembly for an overhead, track mounted, aircraft door includes a frame, a shaft mounted for rotation in the frame, and a torsion spring interconnected between the shaft and the frame. As the shaft is turned in a first direction, the spring is wound so that a torque is applied to the shaft in the direction opposite to rotation. The spring rate of the torsional spring is selected so the spring torsional force slightly exceeds the component of the door weight acting along the path of motion of the door throughout the door travel. A cable drum is mounted for rotation on the shaft and is releasably affixed thereto. A cable is wrapped about the drum and has its free end connected to the overhead sliding door. A planetary gear train has its low speed input shaft coupled to the shaft and its high speed output shaft operatively coupled to a centrifugal brake and to a manually rotatable drive wheel.

Abstract: Control device for bar transfer comprising a lever driven in rotation about a fixed axis, an arm mounted rotating on the lever around an axis parallel to the preceding axis, the arm being further connected to the bar transfer by a catch-pin of axis parallel to the aforesaid axes, the lever and the arm having the same length between the axes in question, and a mechanism being provided to drive the arm at a relative angular velocity double that of, and in the opposite direction to that of, the lever, wherein there is provided a drive mechanism for the lever comprising a drive element with cycloidal trajectory to modulate the speed of rotation of the lever and thus of displacement of the bar.

Abstract: An epicycloidal crank drive mechanism is disclosed as comprising a support frame mounting a prime mover coupled through a gear reducer to drive a primary rotary member about a first fixed axis on which a sun gear is concentrically disposed. The primary rotary member carries at least one roller gear that is engaged by the sun gear such that the roller gear rotates about a second axis which is parallel to the fixed first axis and movable with respect to said first axis as the primary rotary gear is driven by the prime mover. The roller gear has an upper portion on which is mounted a roller adapted to movably engage a slotted section formed in a plate member. The plate member is driven by the roller for rotation about the first fixed axis. The plate member carries a crank arm which moves through a motion that varies relative to the velocity of the primary rotary member. The mechanism is disclosed as an integral part of two types of crank mechanisms.

Abstract: An intermittent reversible indexing system with a rotary input and rotary output which includes a natural dwell of the output at the end of each cycle with a smooth acceleration to a maximum velocity and subsequent deceleration to another dwell and a simple mechanism for changing the index stroke. A planetary carrier carrying a single planetary gear is driven about a first axis with the planetary gear in mesh with a stationary sun gear concentric about said first axis. A drive member in the form of a shaft eccentric to the axis of said planetary engages and slides in a slot of an output member, thereby driving said output member about a second axis displaced from said first axis. A movable mount for the output member changes the drive relationship with said eccentric shaft to change the index motion.

Abstract: Apparatus for balancing or equalizing the mass forces of an engine having reciprocating pistons turning a crankshaft rotates a drive gear twice as fast as the crankshaft. A planetary gear is eccentrically carried on the drive gear and meshes with internal teeth on a stationary sun gear at a gear ratio of 1:2. The planetary gear has an eccentrically placed counterweight of a mass such that it balances the mass forces of the engine of the same order as the ratio of drive gear to crankshaft speed, Order II mass forces for this example. The drive gear also has an eccentrically placed counterweight which balances the planetary gear as they rotate with the drive gear. The counterweight on the planetary gear is preferably placed as near as possible to the pitch diameter of the planetary gear so as to make its path of travel as nearly linear as possible.

Abstract: A slide driving device for use in a metal working press having an eccentric sheave capable of effecting an eccentric rotation and an oscillating link member adapted to oscillate in response to the eccentric rotation of the eccentric sheave. A slide of the metal working press is connected with the oscillating link member through a connecting rod. The eccentric sheave is adapted to be eccentrically rotated at uneven angular velocities so that the downwardly moving speed of the slide is reduced relative to the operating speed of the press which is supplied with power from the driving power source.

Abstract: Apparatus for driving detaching rollers in textile combing machines. The pilgrim step motion cycle of the detaching rollers is created by the combination of a constant rotational motion, transmitted by a driving source by way of a power transmission mechanism involving a differential gear mechanism, and a modified variable rotational motion cycle, transmitted by the differential gear mechanism. In the mechanism for creating the above-mentioned variable rotational motion, a first link motion mechanism, which is actuated by the driving source, creates a basic variable rotational motion cycle; and a second link motion mechanism, which is actuated by the output of the first link motion mechanism, adjusts the characteristic feature of the basic variable rotational motion cycle. The output of the second link motion mechanism is imparted to the differential gear mechanism as the modified variable rotational motion cycle.

Abstract: A gear is oscillatingly rolled on a fixed gear so that a pin fixed thereto describes epitrochoidal movement. The pin rocks a sector gear to reciprocate a rack meshing therewith. A low speed interval is produced when the pin position corresponds to a cusp of the epicycloid.

Abstract: A control mechanism to dampen gimbal tumbling and to orient the axes of rotation of the rotor and the gimbals of a gyroscope when in an inoperative state. The control mechanism serves as an overriding stop to gimbal lock, dampens the gimbal rotation leading to tumbling and restores the gimbals to a given orientation upon the cessation of gimbal rotation. The overriding stop and dampening force in one embodiment are the plurality of cams and cam followers rotatably mounted and operatively connecting the inner and outer gimbals with the gyroscope frame, and in another embodiment a cam and cam follower arrangement rotatably mounted and operatively connecting the inner and outer gimbal in combination with a bearing surface operatively connecting the inner and outer gimbal with the gyroscope frame.