Abstract: An intermittent drive mechanism is provided for intermittently driving an output shaft with an input shaft that has an axis that intersects the axis of the output shaft at an angle. A driving element on the input shaft couples with a driven element on the output shaft through pairs of corresponding accelerating and decelerating pin and slot combinations which engage each other intermittently at the surface of an imaginary sphere which is centered at the intersection point of the shafts. Embodiments are provided both with and without intermittent driving gears on the elements to maintain the output shaft rotation at constant maximum velocity through a predetermined arc. The slots are curved, preferably in circular arcs, so as to optimize acceleration and the rate of change of acceleration (jerk), particularly as the output shaft approaches and leaves the point of maximum angular velocity.

Abstract: The outputs (17-18) of a pair of intermittence devices (16) operated in phase with a clutch driving shaft (6), clutch however, generate equal movements, however in a 180.degree. out-of-phase relation with each other. With the interposition of respective electromagnetic friction clutches (27-28), these outputs are connected to the driven disc of the clutch. The two clutch discs are normally interconnected by at least one respective dog (9-10). A control logic (22) connected to a generator of clock signals (K1-K2) in phase with the uniform motion and rest times of the outputs from the intermittence devices, commands the clutch to be opened and closed, when the friction clutch at the selected output is closed, and when the said output travels at the same speed as the input into the intermittence devices.

Abstract: An elliptic gear having a constant velocity portion, wherein a pitch circle is a closed curve composed of: a constant velocity portion pitch curve, in which the radius from the center of rotation is a constant arc; and an inconstant velocity portion pitch curve, which is expressed by a formula of an ellipse in polar coordinates having its pole located at the center of rotation and which merges smoothly into the constant velocity portion pitch curve.

Abstract: An apparatus for rotatably moving and positioning an indexing table is disclosed. The apparatus of the present invention allows an indexing table to be quickly rotated between a plurality of index positions to within an accuracy of less than 0.001 inches on a repeated basis. Further, the apparatus has no looseness or physical separation between motion transmission elements while at or near each index position that would otherwise allow for externally induced movement of the indexing table. While at or near each index position, a first side of the cogs of a first planetary gear is kept in continual contact with the first side of the cogs of a main gear, and the second side of the cogs of a second gear is kept in continual contact with the second side of the cogs of a main gear.

Abstract: An engine starter apparatus comprising first and second noncircular gears, a pinion, and a starter motor. The pair of noncircular gears is interposed between a crankshaft and a ring gear of an engine, and when the speed of rotation of the first noncircular gear is kept constant, the second noncircular gear rotates the crankshaft while cyclically causing a change in the angular velocity due to its profile. Since the second noncircular gear is positioned so that the change in the angular velocity caused by its rotation can cancel a change in torque of the crankshaft, the change in the torque of the engine are not transmitted to the starter motor, thereby operating the starter motor at constant current at all times, providing such additional advantages as smaller and lighter starter motor design and reduced noise.

Abstract: Rotation and linear movement of a main gear is provided by a pinion gear rotatably mounted on a crank arm and in meshing engagement with the main gear. A connecting arm between the gear centers keeps the gears in meshing engagement. The pinion gear may have a diameter one half the diameter of the main gear to provide rotation of the main gear 180 degrees after one revolution of the pinion gear. The crank arm may be rotated in opposite directions to provide oscillating movement of the main gear. In a tire building machine, the main gear may be mounted in a linear guide of an upright plate member for vertical movement. The main gear is connected to a shaft for rotating and tilting a hub member having two spaced apart tire building drums mounted with axes at an angle of 90 degrees and in the same plane as the axes of the tire building drums so that they can be oscillated between two fabricating positions.

Abstract: A speed reducing device is provided for use with a multi-purpose woodworking tool such that faceplate turning operations may be performed on large diameter workpieces. The device includes a housing which partially supports input and output shafts passing through opposite sides of the housing. An end of the input shaft located within the housing is formed with a hole for receiving an end of the output shaft within the housing such that the input and output shafts coact with one another to support each other and prevent one another from pivoting about the points at which they are supported by the housing. The input and output shafts rotate relative to one another and are both connected to a sheave by a pair of belts such that the input shaft may be driven by the output spindle of a woodworking tool at a first speed and the output shaft will be driven by the belts and sheave at a slower speed which is acceptable for turning large diameter workpieces.

Abstract: A transmission wheel (12) is shiftable in position radially relative to a driven member such as a bicycle wheel. A driving force is imposed to the transmission wheel (12). This driving force rotates the transmission wheel (12) and the rotational force is transmitted by drive spokes (106) from the transmission wheel (12) to a hub portion of a driven member. The radial adjustment of the transmission wheel (12) relative to the driven member changes the length of a torque arm (106, 130) which in turn changes the drive speed of the driven member. The torque arm length is the radial distance between the rotational axis (40) of the driven member and the location of drive force application onto the transmission wheel (12).

Abstract: A rotary drive mechanism has an input shaft with a first crank, mounted parallel to an output shaft, the input shaft being offset from the output shaft by a distance equal to the length of the first crank, the output shaft having a second crank of greater length than the first crank, the first and second cranks are pivotally connected to opposite ends of a link, interlocking formations are provided to prevent rotation of the second crank and link independently of the input shaft when the second crank and link are parallel to one another.

Abstract: An improved oscillating sprinkler comprising a frame having a sprinkler tube mounted for oscillating movement on the frame. An inlet water housing is mounted on the frame and supplies water to the sprinkler tube. The sprinkler tube is driven in an oscillating path by a crank arm, and an eccentric gear mechanism driven by the water being supplied to the sprinkler tube is operably connected to the crank arm. The eccentric gear mechanism is constructed to provide a variable speed output that balances the varible speed output of the crank arm to provide a substantially uniform velocity of oscillating movement for the sprinkler tube. The sprinkler also includes a mechanism for varying the effective length of the crank arm to change the arc of oscillation of the sprinkler tube, and a slip clutch mechanism interconnects the inner end of the sprinkler tube to the housing to permit the sprinkler tube to be manually rotated to shift the spray pattern to one side or the other.

Abstract: A machine for rhythmic and reciprocal movement of workpieces and the like in at least two successive steps is described. A carriage for moving the pieces has a drive in the form of at least two synchronously operating crank pins (12, 13), each engaging a groove (25, 26) of a slide track (24) fixed to the carriage (18-20) over about half the length of its travel. One step is thus executed. Then the crank pin in question (13) exits a groove (26) and the other crank pin (12) enters its groove (25). It then executes the second step. At the beginning of each step, the velocity of the carriage is zero. In the further course, it rises to a maximum at a crank angle of 90.degree., and drops back to zero at the end of the step. In this way an especially gentle and rapid motion is made possible. The crank pins may each be mounted on its own shaft, or they may be mounted together on a common shaft with an offset of 180.degree..

Abstract: The gear drive or transmission comprises toothed elements whose radial spacing from a drive shaft can be selectively altered. There are two sets of such toothed elements whose aforementioned radial spacing can be infinitely varied in increments or sets. Each set of the toothed elements has operatively associated therewith at least one planetary gear which always meshes with one of the toothed elements of the associated set. The drive shaft generates, on the one hand, between the toothed elements and each of its associated planetary gear, on the other hand, a relative revolving or orbiting motion. Coacting with each planetary gear is an intermediate gear train which is positively or form-lockingly connected with one of the freely rotatably mounted starting elements of a differential gearing. A compensation element of the differential gearing is rotatably mounted at the end of a radially protruding arm rigidly connected for non-relative rotational movement with the drive shaft.

Abstract: A differential rotary-to-rotary cam system to achieve long dwell periods with continuous rotary input including a rotary prime mover of several different types and a differential cam assembly which can be interposed between a particular power input and a power output to produce a repetitive differential motion wherein a long dwell is obtained at the rotary output. This is particularly enhanced when the differential is driven by a basic power system which in itself can produce a dwell in its output motion.

Abstract: Rotary drive apparatus includes a rotatable member secured to a pivoting arm and another rotatable member having an axis of rotation offset from the geometric center of the member to produce a non-linear rotation. Two embodiments are shown, one in which the driving member is pivoted and a second in which the driven member is pivoted.

Abstract: In a multi-slide wire and strip forming machine, an improvement that enhances the flexibility of the machine primarily from the standpoint of providing increased forming time relative to feeding time. The machine includes a wire forming means operable at the work station in response to the machine camshaft and operable over a predetermined forming. Wire feeding means is also included operable in response to the camshaft over a predetermined feeding period. An improved gearing arrangement is provided intercoupling the camshaft and the wire feeding means and configured to provide during a full camshaft rotation, different intervals of the predetermined forming and feeding periods, respectively.

Abstract: A stepless transmission of the non-friction type is provided using intermeshing non-circular gears. The transmission is made up of a number of angular velocity modulators each having first, second, and third shafts. Each shaft carries a non-circular gear thereon which meshes with the gear of a succeeding shaft. The angular velocity ratio .omega. of the third shaft of each modulator relative to the first shaft depends on the pitch curve of the intermeshing non-circular gears and on the position of the third shaft relative to the position of the first and second shafts. By changing the position of the third shaft the angular velocity ratio .omega. of the modulator can be steplessly varied. The output of the third shafts of each modulator are combined onto a common shaft by one the clutches to provide a continuous output. The position of the third shafts, and thus the overall ratio of the transmission, may be controlled automatically by a spring.

Abstract: An intermittent drive mechanism includes a pair of non-circular drive and driven gears for translating a constant velocity rotary motion of an input shaft into a non-uniform velocity rotary motion of an intermediate shaft, the latter-mentioned rotary motion having a sinusoidal angular speed pattern, and a harmonic speed reducer drivingly connecting the intermediate shaft to an output shaft which is connected to a flexible spline of the speed reduce. A rigid circular spline of the speed reducer is angularly reciprocated under the control of an eccentric cam on the input shaft in such a manner that the motion of the sinusoidal angular speed pattern is transmitted from the intermediate shaft to the output shaft in a certain decelerated condition only while the intermediate shaft turns through a half of each turn. The motion transmission takes place gently without causing undesired shock at the beginning and the end of the motion.

Abstract: High speed container placement method and apparatus are provided, particularly for check weighing or for use in combination with high speed filling equipment for consumer products, such as instant coffee. A container separating device introduces groups of containers to a container placement and removal device for sequencing therethrough. The individual containers are transferred from an annular turntable to separate stationary work positions on a deck plate where they undergo a processing step. Following this processing step, the containers are removed from their respective stationary positions and returned to the annular turntable to be ultimately discharged from the container placement apparatus. The containers are placed at and removed from the work positions respectively by feeder and discharge guides which oscillate as they travel about the deck plate along an epicycloidal type path.

Abstract: An internal combustion engine (10) is provided which includes a wall (12) defining a toroidal cylinder (22). A pair of flywheels (36 and 38) are mounted for rotating with respect to said cylinder (22) on a central axis thereof and with respect to each other. Each of the flywheels carry at least a pair of pistons (50) mounted at selected locations, and preferably 180 degrees apart. These pistons (50) cooperate to define compressing/expanding chambers during rotation of the flywheel. Air and fuel are selectively drawn or injected into the cylinder chambers, ignited and then exhausted from the chambers during engine operation. A device (70) is also provided to control the speed of revolution of the pistons during the engine cycling such that the compression/expansion chambers are defined at selected locations during a cycle of the engine.

Abstract: A gear transmission employing at least one pair of non-circular gears to form the intermeshing pitch curves so that one non-circular gear can be given the periodically variable number of rotations on the basis of the exponentially functional increasing mode or the same decreasing mode with respect to the rotational speed of the other non-circular gear, thereby obtaining a gear type continuously variable transmission.

Abstract: An apparatus grinding a steel billet to remove surface cracks. The billet is advanced in the direction of it longitudinal axis while being rotated. The apparatus includes a grinding wheel mounted in a bearing in a movably mounted support member. In order to accurately and simply control the penetration depth of the grinding wheel, a stop member is mounted on the support member. In one embodiment, the stop member is a segment of a circle mounted eccentrically relative to the grinding wheel. In another embodiment, the stop member is a segment of a spiral mounted coaxially with the grinding wheel. The stop member engages the surface of the billet. Two arrangements are described for rotating the billet at an increased speed while grinding the edge regions.

Abstract: A prime mover is connected by a series of universal joints to a crank which reciprocates a weight. The joints are arranged in such manner that the weight moves substantially faster in one direction than in the opposite direction causing a force to be applied to the structure in the first direction. When the structure is mounted on a vehicle the vehicle is caused to move in the first direction.

Abstract: The transmission has a housing enclosing an annular output gear with a drive member rotatably mounted coaxially therein. A drive gear carried by the drive member engages the output gear. A lug plate carried by the drive member interacts with a guide plate radially movable with respect to the housing to change the relative path traveled by the lugs and thereby the rotational ratio between the input and output gears. Transition between ratios is smooth and continuous over an almost infinite range of ratios.

Abstract: A pair of non-circular gears having a fixed sum of the radius of the gears is used as transmission gears secured between a power shaft and a crank shaft. Each radius of the non-circular gears increases or decreases according to the required rotation. A powder feeding time in one cycle is prolonged by delaying the lowering velocity of an upper ram near the lowermost dead point of the upper ram which carries out the powder compacting and performing a quick return motion of the upper ram after a compacting zone.

Abstract: High speed container placement method and apparatus are provided for use in combination with high speed filling equipment for consumer products, such as instant coffee. A container separating device introduces groups of containers to a container placement and removal device for sequencing therethrough. The individual members of a group are transferred from a high speed annular turntable of the container placement and removal device to separate stationary work positions on a deck plate where they undergo a processing step such as filling the container by weight with an appropriate amount of product. Following this processing step, the containers are removed from their respective stationary work positions and returned to the high speed annular turntable to be ultimately discharged from the container placement and removal device. Simultaneously, the next group of containers is being fed into the apparatus to sequentially replace the fully processed group.

Abstract: A stacking and delivery apparatus for stacks of products such as paper napkins and paper towels includes a magazine into which the products are delivered to form stacks and which supports the stack along a path of product movement. A plurality of fingers are mounted on a conveyor adjacent the magazine, and the conveyor moves a finger into the path of stack movement when a stack is completed and separates the completed stack from the next stack. A drive system for the conveyor moves the conveyor at different speeds during each cycle in which a stack is formed--a first, fast speed at which a finger is quickly moved into the path after a stack is completed, a second, relatively slow speed at which the finger moves the completed stack along the path as the next stack is built up behind the finger, a third, relatively fast speed at which the finger moves the completed stack rapidly along the path, and a fourth speed, which can be zero, during which a completed stack is removed from the conveyor.

Abstract: A high speed container placement apparatus is provided for use in combination with a high speed filling equipment for consumer products, such as instant coffee. A container separating device introduces groups of containers to a container placement and removal device for sequencing therethrough. The individual members of a group are transferred from a high speed annular turntable of the container placement and removal device to separate stationary work positions on a deck plate where they undergo a processing step such as filling the container by weight with an appropriate amount of product. Following this processing step, the containers are removed from their respective stationary work positions and returned to the high speed annular turntable to be ultimately discharge from the container placement and removal device. Simultaneously, the next group of containers is fed into the apparatus to replace the fully processed group.

Abstract: To provide a belt transport path in which the belts cyclically decelerate and accelerate, to feed paper subject matter, for example from a "first longitudinal folding apparatus" to a "second longitudinal folding apparatus" at reduced speed, two eccenter pulleys are located in respectively different planes, for example parallel to each other, rotating on a common shaft, and having the same eccentricity (x). A first run of the belt is guided from the paper transport path to loop, in part, about a first eccenter pulley, then guiding a second run of the belt from the first eccenter pulley into the plane of the second eccenter pulley, and a second guide pulley guides a third run of the belt from the second eccenter pulley back to the transport path. Two belt system may be used, located in mirror-image relationship, or a single belt can be guided adjacent the run which contacts the transported subject matter (E) from an eccenter located outside the plane of the printed subject matter.

Abstract: A variable-velocity drive is provided which serves to so control the periral velocity of a window cutter roller in an envelope machine working from the reel that, irrespective of the developed length of such roller, the velocity of the window cutter is the same as that of the paper web for the time that such cutter is operative on such web. To this end, the variable-velocity drive is basically devised from a number of universal joints interconnecting shafts whose axes intersect one another at an angle of up to approximately 45.degree.; the universal joints are so offset from one another in rotation that the variations or irregularities arising in the discrete joints are superimposed upon one another so as to have an amplifying effect. Since any one such universal joint arrangement passes through two velocity maxima and two velocity minima per revolution, gearing is provided on the input and output side to make the universal joint arrangement run at half the cycle speed.

Abstract: Phase control device comprising a driven wheel and a driving wheel. The driven wheel engages an endless loop, whose going part toward the driving wheel and returning part from the driving wheel engage a pair of idling wheels and one or plural pairs of movable wheels. The movable wheels are finely adjusted toward a cross direction to the endless loop so that either the going part and the returning part is pulled, while the other is slackened. As a result, the phase of the driven wheel is changed so that timing of the driven wheel against the driving wheel can be regulated. The phase control device provides timing of the operation of a pair of machines such as coveyors which link mutually.

Abstract: Transmission systems in which a driven sprocket is driven by way of a chain by a driving sprocket which is driven by drive means at a constant speed of rotation, are provided with oscillating or reciprocating idler sprockets for superimposing on the constant speed of rotation drive a periodic, cyclic motion changing the speed of rotation of the driven sprocket, which periodic cyclic motion increases the length of the portion of said chain extending between the exit side of said driven sprocket and the entrant side of said driving sprocket while shortening by a corresponding amount the length of the portion of said chain extending between the exit side of said driving member and the entrant side of said driven member during one-half cycle of said cyclic motion and vice versa during the other half cycle of said cyclic motion.

Abstract: A power take-off of an internal combustion engine, typically an Otto-cycle or Diesel engine, for auxiliary machines, such as compressors, pumps, etc., with the input shaft of the auxiliary machine being drivingly connected with the output shaft of the internal combustion engine via gears. To change the step-up/step-down ratio, the shaft center spacing between the input shaft of the auxiliary machine and the output shaft of the internal combustion engine is variable in a manner that the drive pinion is supported in an eccentric bearing bushing which, in turn, is arranged axially displaceably and rotatably in a flanged housing. The eccentric bearing bushing has a flanged part having axial holes to alternatively accept a locating pin.

Abstract: The drum drive in a rotary shear includes a pair of driving and driven surge gears and a coupling of which the driving and driven companion members are drivingly connected with the driven surge gear and with one of the drums. The shear is adjustable for varying the length of stock cut on each revolution of the drums, and such adjustment also requires shear synchronization with the fed stock which is accomplished by disconnecting the coupling members and angularly adjusting the surge gears relative to the drums. The coupling of featured lock type has companion members with cylindrical surfaces which are normally in such an interference fit with each other as safely to transmit without slippage torque in excess of the maximum required for stock-cutting operation of the shear, yet these coupling members are disconnectible for shear synchronization by applying pressurized fluid to their cylindrical interface.

Abstract: Non-uniform drive comprising a flywheel disc for balancing masses and a slide crank drive in which the crank pin is guided in a slideway provides for an adjustable spacing between the crank shaft and the shaft of the slideway. A second crank pin lies opposite the first crank pin at substantially the same spacing from the axis of the shaft of the slideway and drives the freely rotatable flywheel disc.

Abstract: Stepping drive mechanism for converting a constant input rotatory movement to a linear movement of a given length accelerated first from zero, then continuing at constant velocity, and finally decelerated back to zero, in which the constant input rotatory movement introduced into the drive of the mechanism is transmitted to cylindrical driving cams having indexing grooves provided in their cylindrical circumferential surface, which are engaged by an indexing pin provided on a carrier component coupled with the drive of the mechanism. The indexing pin carrier component has the form of a circular disk mounted for rotation about its central axis, on each of whose opposite flat sides a driving cam is provided, one associated with the acceleration-deceleration phase and one with the constant-velocity linear movement phase. The cams each have an axis of rotation disposed at right angles to the central axis of the indexing pin carrier component, in whose indexing grooves an associated indexing pin engages.

Abstract: An electronic power tool provided with a microprocessor operated speed control system and having a multiple gear reduction drive mechanism is provided with a gear ratio indicator system employing a dual purpose cam shaft for coordinating the mechanical gear shifting and electrical microprocessor systems. The cam shaft is provided with a first cam element for performing the gear shifting function and a second cam element, operably interconnected with the first cam element for automatically moving a switch between positions corresponding to the gear engagement selected. The switch is electrically interconnected with the microprocessor to communicate the gear ratio selected thereto.

Abstract: A motion conversion device comprising a cam mounted for rotation about an axis eccentric to a central axis, said eccentric axis being rotatable about said central axis, the cam having N lobes the outermost points of which are equally spaced around and equidistant from the eccentric axis, N being an odd integer other than 1, means for effecting relative rotation between the central axis and the cam on rotation of the eccentric axis about the central axis or rotation of the cam about its eccentric axis whereby the cam is arranged to rotate about its eccentric axis at an angular velocity of (2/N+1) times the angular velocity of the eccentric axis about the central axis, a pair of cam followers rotatable about an axis substantially coincident with the central axis, the cam followers being in contact with the cam on opposed sides of the central axis and equidistant from the central axis, the cam being formed such that on rotation of the eccentric axis about the central axis at a substantially constant velocity the

Abstract: Apparatus for converting rotary motion from a source of power which may be of constant speed into a rectilinear force includes a coupling arrangement for driving an eccentrically unbalanced flywheel at a cyclically varying rotational speed and linkages for altering the timing of the cyclical variation of speed of the eccentrically unbalanced flywheel. The apparatus comprises a cam element which is driven at a constant rate of speed about an output axis which is perpendicular to its face. The cam element has a slot extending diametrically across its face, configured for slidably engaging a pin which is located on a cam follower. The cam follower is freely rotatable about an input axis that is offset from the output axis by an amount which allows the pin to remain in the slot when the elements are rotated. The cam follower in turn drives the flywheel at a cyclically varying rotational speed.

Abstract: A controlled film advance apparatus is disclosed in my U.S. Pat. No. 4,048,782 as issued on Sept. 20, 1977. It has been found that the apparatus and method of film advance as carried on the frame of the reference patent is advantageously returned at a speed which is greater than the forward speed. This film is intermittently moved and provides a longer period of repose as the films are formed, shaped or provided with similar operations. The improvement as shown in the drawings provides a means to adjust the speed of travel in and by the drive mechanism. Also shown is a speed reducer mechanism used in conjunction with the film advance apparatus.

Abstract: A pedal powered gear transmission mechanism applicable to velocipedes, exercise machines or winches is disclosed. A system of non-circular gears or a combination of non-circular and circular gears between pedal cranks and a chain driving sprocket causes the pedal cranks to retard and advance cyclically relative to the chain sprocket by varying the instantaneous gear ratio between the pedal cranks and chain sprocket. The resulting change in mechanical advantage partially compensates for the inherent disadvantage at and near dead center pedal positions. A more uniform application of torque is developed.

Abstract: The plate cylinder of a printing press is driven at a non-uniform speed to suit a particular repeat length of the web to be printed. If the repeat length is shorter or longer than the plate cylinder circumference, the plate cylinder is respectively accelerated or retarded from web speed between successive imprints by being connected to the output of differential gearing of which a first input is connected to a drive gear and a second input is connected to a gear oscillated by means of a cam follower of a cam rotating together with said drive gear.

Abstract: It is a purpose of this invention to provide for highly efficient transmission of power delivered either manually or thru any other means from the source to the output point, whether either is rotary or reciprocating, thru an infinitely variable range beginning with zero.

Abstract: The lower end of a crank from an internal combustion engine is pivoted on one side of the center of a small gear which in turn is mounted for rotation to one side of the center of a relatively large drive gear. A stationary gear is concentric with the drive gear and an idler gear is mounted for rotation to the drive gear and engages the small gear and the stationary gear. The drive gear engages a take-off gear to transmit power from the piston via the crank and gears. The gear ratio of the small connecting rod gear and fixed gear is such that the small gear rotates at twice the speed of the large gear. The connecting pin of the small gear is furthest from the center of the drive gear at top dead center and bottom dead center and nearest to the center at 90.degree. from top dead center and bottom dead center so that when at top dead center, the crank has the highest mechanical advantage and at 90.degree. therefrom, the lowest mechanical advantage.

Abstract: A variable speed and direction power transmission attachment for driving the cutting tool carriage of a lathe or the like, the attachment having sets of intermeshing male and female cog gears. Certain of such sets each comprises a face gear having a plurality of concentric rows of tooth socket elements formed therein. A male cog gear is selectively settable to mesh with any of such rows to change the gear ratio. By changing the combined setting of different sets of gears, a wide variation in overall gear ratio may be obtained to provide many different feeding speeds of the carriage, suitable for general cutting and for screw thread cutting. A reversing mechanism, also constructed of intermeshing cog gears, enables the direction of drive to be reversed or the drive to be disconnected to permit manual drive of the carriage.

Abstract: Alternatively usable gear trains provide either a steady or an intermittent drive for a sinning reel. In intermittent drive condition, the gear train provides "stop and go" motions of different duration, and different "stop and go" patterns are obtained through alternatively usable gear trains.

Abstract: A gear train transmits power to a higher angular speed. A drive pinion has a spur gear design for meshing with a spur toothed portion of an intermediate gear. The intermediate gear also has a helical toothed portion following a path which axially moves toward and away from the circular path of the spur gear portion engaging the pinion gear. A third gear having the same diameter as the pinion gear is adapted to mesh with the helical gear portion of the intermediate gear.

Abstract: The variable speed transmission includes a power input drive shaft and a variable throw crank having a zero throw position aligned with the input shaft. The variable throw crank is coupled to the input shaft for rotation therewith and its eccentricity with respect to the axis of rotation of the input shaft can be varied. A control plate, also referred to as a master link, is rotatably mounted on the crank and a plurality of clutches having input and output shafts are operatively connected to the control plate through a plurality of pitman type links, whereby the control plate oscillates the input shafts of the clutches upon rotation of the power input shaft and variable throw crank of the transmission. The outputs of the clutches are connected to an output shaft for the transmission.

Abstract: A transmission gear mechanism having a plurality of drive gears and a shiftable driven gear. Eccentric gears are provided between the drive gears to smoothly transfer the driven gear from one drive gear to the next during shifting without interrupting the power transmission. Bearing surfaces are provided to bias the driven gear into contact with the drive and eccentric gears at all times to maintain power transmission.

Abstract: An elliptic gear wheel or rotor having a predetermined pitch circle which includes longer and shorter radius and intermediary portions between said longer and shorter radius portions, the longer and shorter radius portions have teeth of a greater tooth pressure angle than that of teeth on the intermediary portion, and a transmission gear device including at least two identical elliptic rotors of the above type mounted in their respective support shafts in intermeshing relationship to each other.

Abstract: Two coaxial rotors are connected with a counter-shaft through two pairs of varying-motion gears of opposite phase. They are designed to provide perfect mass-balance. Each gear rigid with a rotor contains two diametricaly opposite maximum radii, and perpendicular thereto two minimum radii. Its pitch lines that roll on the mate without slippage reach further out from the pitch circle of an imaginary uniform-motion gear of a pair having the same axes and tooth ratio than they recede inwardly of said circle; and they are more curved at the maximum radii than an ellipse of the same maximum and minimum radii. These features secure perfect mass balance.Here now the gear teeth are uniformly spaced along the pitch lines and have a constant inclination thereto.The invention also provides a simplified procedure for mass production, that contains fewer steps and thereby provides higher accuracy than hitherto possible with gear teeth uniformly spaced along pitch lines of varying radii.