Abstract: A fluid pressure control system for a motor vehicle transmission includes a modulator valve interposed between a manual shift valve and frictional engaging devices, such as for example, brakes and clutches, and which is adapted to be actuated so as to drain the supplied line pressure whereby the hydraulic pressure for actuating the frictional engaging devices is gradually increased below a predetermined value and then regulated to a substantially constant value above the predetermined value.

Abstract: In a spring or electric motor, or other power means for toys, games or the like, a liquid governor which has gear members disposed for rotation within a closed interior cavity of a housing for the governor. A driven shaft extends from the motor means through the housing into the cavity and is operatively connected to a driven gear disposed within the cavity. An idler gear is disposed in meshed engagement with the driven gear for rotation thereby, and a high viscosity liquid substantially fills the cavity providing resistance to the driving of the gears and thereby a slowing control for the motor.

Abstract: To control the changeover between different speed ratios in an automotive transmission, with the aid of hydraulically actuatable clutches and brakes, a 1-2 shift valve (70) and a 2-3 shift valve (90) responsive to a speed-dependent fluid pressure are subjected to a countervailing load-dependent fluid pressure generated by a throttle valve (40), under the control of the vehicular accelerator, above a predetermined intermediate point of the load range. Fluid for the actuation of the clutches and brakes, under a pressure rising in the lower part of the load range and remaining constant in its upper part, is delivered by a modulating valve (340) in cascade with the throttle valve, provided with a limitedly displaceable slider, or by cascaded modulating and limiting valves (350, 357).

Abstract: A steplessly settable gear box provided with a slidable head coupled to an output shaft is disclosed. The slidable head is slidably mounted on a first spur gear coupled to an input shaft and in mesh with an internally toothed fixed annular gear. A second spur gear is in mesh with an internally toothed angularly settable annular gear and the head is so coupled to the second spur gear as to be slidably deplaceable relative to the axis of rotation of the first spur gear in dependence on the angular setting of the last mentioned annular gear.

Abstract: Each stage of the transmission includes a composite ring gear for operatively connecting spaced coplanar drive and idler gears on engine and idler shafts, respectively. The ring gear comprises a plurality of rotationally offset element assemblies, each of which includes first and second ring gear sectors, each mounted on a different end of a rotatable element. In this manner, as one gear sector engages the drive gear, the other sector engages the idler gear. Means operably connected to each element assembly of the composite ring gear are provided for varying the position of the axis of rotation of each of the assemblies relative to the drive and idler gears so as to change the ratio of the distances between the axes of rotation of the element assemblies and that of the drive and idler gears, respectively, and thus the speed transfer ratio of the stage.

Abstract: A torque transmitting assembly for a wheel drive train suitable for off-highway vehicles. The assembly includes an internal gear having first external gear means about its periphery and adapted to engage a number of driving pinion gears mounted within the internal gear. A separate, first cylindrical torque transmitting member has first internal gear means for engaging the first external gear means and also has second internal gear means. A second, generally cylindrical, torque transmitting member is provided with second external gear means adapted to engage the second internal gear means. The first torque transmitting member is adapted to be detachably connected to the internal gear member and to the second torque transmitting member respectively. In operation, driving torque is transmitted from the driving gears to the second torque transmitting member via the first transmitting member and the first and second internal and external gear means.

Abstract: A compact combination of planetary gear sets together with a torque converter and drive conditioning clutches and brakes provides for a broad range of output speeds in either mechanical or converter drive with a nearly constant small step ratio between speeds and with a relatively small variation of transmitted power throughout a very broad range of output speeds.

Abstract: A flexible member in a harmonic gear reduction unit is operatively connected at its other end also to an output member of the gear reduction unit through a second coupling arranged symmetrically with respect to the first coupling about an axis of engagement between the teeth of the flexible and rigid members, elements imparting radially directed deformations to the flexible member being also arranged in the unit symmetrically about the axis of engagement between the teeth of the flexible and rigid members.

Abstract: A clutch for disconnecting a drive shaft of an electric switch from a switch actuating element which includes a rotary shaft, particularly useful for the return or trip-free release of a rotary switch, comprises a differential gearing coupled between the rotary shaft of the actuating element and the switch drive shaft. The gearing includes a first gear connected to the rotary shaft for rotation therewith, a second gear connected to the drive shaft for rotation therewith, idler gears meshing with the first and second gears and transmitting rotation from one to the other, and a housing carrying the idler gears and mounted for rotation. A releasable latch carries the idler gears and is arranged selectively to permit and stop rotation of the gearing housing.

Abstract: A control member for a clutch disk of motor vehicle main clutches in which a disk member carrying the friction linings and a lateral member rigidly connected therewith are operatively torsionally elastically connected with the flange of a hub member; several springs or spring sets of different characteristics are thereby retained in the windows of one of the two parts torsionally elastically connected with each other and engage in windows of the other part while frictional damping devices are provided, whereby the start of opertion of at least one damping device is determined by a control member which engages with tabs, arms or the like in the windows intended for the accommodation of the springs or cooperates with the spring ends; the control member includes an approximately radially extending fork-like arm whose two fork ends are bent over along their radial edges, as viewed in the axial direction, and therewith enclose a control spring; these bent over portions are supported at their radial inner ends with

Abstract: A multiple input and preferably multiple output transmission for industrial, commercial and other vehicles includes axially aligned input and output shafts, a single aligned countershaft, first, second and third input gears, a plurality of foward output gears with one of the forward output gears also being capable of serving as one of the input gears. First, second and third driven countershaft gears are in constant mesh with respective ones of the input gears, and each one of a plurality of driving countershaft gears is in constant mesh with a separate one of the forward output gears, with one of the driving countershaft gears also being capable of serving as one of the driven countershaft gears. Multiple clutch means are utilized for selectively drivably connecting the countershaft with one of the input gears and for selectively drivably connecting the output shaft with the countershaft. A reverse-idler shaft together with its associated gearing provides for a plurality of reverse speeds.

Abstract: Power transmission for motor-driven vehicles which comprises an input shaft and an output shaft rotatable about a common axis; a gear mechanism including a first planetary gear set having a first sun gear rotatably supported about said common axis, a first ring gear co-axial with and rotatable about said first sun gear and first planetary gear means including first planetary gears engaging the first sun gear and the first ring gear and a first planetary carrier supporting said first planetary gears and rotatable about said common axis; a second planetary gear set having a second sun gear rotatably supported about said common axis, a second ring gear co-axial with and rotatable about said second sun gear and connected with said first sun gear and second planetary gear means including second planetary gears engaging the second sun gear and the second ring gear and a second planetary carrier rotatably supporting said second planetary gears, said second planetary carrier being connected with the first planetary c

Abstract: A valve mechanism is comprised of first and second valves, the first valve producing a first fluid pressure in dependence on engine intake manifold vacuum while the second valve produces a second fluid pressure in response to the first pressure. A first valve spool is connected at its one end to a vacuum diaphragm responsive to the engine intake manifold vacuum. A valve spool land is exposed to the second pressurized fluid so that the spool is biased in one direction by the force developed by the second pressurized fluid acting on the valve land. A second valve spool is movable in response to the first fluid pressure to a position to reduce the pressure level of the second fluid when the engine intake manifold vacuum reaches a predetermined value.

Abstract: A compact high-torque mechanical speed changer, which offers a very wide range of output speeds in different angular directions through selections from sets of fully-interchangeable planet and sun gear combinations, and in which one predetermined counterweighting unit provides matching for the eccentricities associated with all the planet gears of such sets, comprises two sets of planet and sun gear combinations each having a one-tooth difference in numbers of effective teeth, the two externally-toothed planet gears being coupled together angularly and being mounted for eccentric rotation relative to a supporting input crankshaft, while the associated internally-toothed sun gears are respectively fixed with the changer housing and with an output member rotatable collinearly with the input shaft.

Abstract: The transmission ratio of a multiple-speed hub for a bicycle or like vehicle may be changed by axially shifting the ring gear of a planetary gear transmission in the hub shell against the restraint of a return spring. A pawl on the ring gear and/or ratchet teeth on the hub shell have cooperating engagement faces which are obliquely inclined relative to the hub axis in such a manner that the driving force transmitted by the pawl to the ring gear has an axial component in the direction of the return spring action, thereby further axially securing the ring gear in at least one speed position of the hub, minimizing avoidable clearances, and reducing wear of the gear elements.

Abstract: A brake assembly is described in which two disk elements are mounted on a common axis of rotation so that a single braking unit can control braking action on both of the disk elements. The described arrangement provides for smaller diameter braking disks with no loss in braking effectivness of a given system.

Abstract: An epicyclic transmission of the class wherein rotation of a crankshaft is ransferred to an output shaft by means of discs mounted eccentrically on the crankshaft, operating stably over a wide range of operation. All of the centrifugal forces developed in the various rotating members are compensated to improve stability. One embodiment includes shoulders integral with the discs abuttingly engaging guidetracks integral with the transmission housing for transmitting centrifugal forces to the housing. Another embodiment includes pin support means for counterbalancing skewing forces which result from unsynchronized disc rotation. A third embodiment utilizes a cage comprising supportings and bars for transmitting torque to the output shaft. A fourth embodiment utilizes a planetary gearing arrangement for transferring input rotation to a plurality of driver shafts. The rotation of the driver shafts is transferred to the output shaft by a plurality of seating rings.

Abstract: A free-wheeling mechanism, comprised of a shaft with threaded ends; two fixed cones joined thereto by means of said threadings; a movable cone, one of the ends of which includes a hollow portion into which one of the fixed cones fits on a ball bearing and the other end being toothed, a set of roller bearings being held in place at that point. These roller bearings are adjustable by means of an adjusting device, which in turn, is also joined to the shaft; also joined to this shaft are a set of housings, which together with the movable cone, as well as by the oppositely placed cone, make up the bearing races. Included, as well, is a hollow cylindrical body with two supporting end plates which serve to hold the spokes and which make up the hub of the freely rolling wheel. Inside of this hub, all of the aforementioned components are housed, with exception of that part of the movable cone that includes the hollow portion as well as the fixed cone fitted into said hollow portion.

Abstract: A countershaft transmission having an input shaft selectively driving a clutch carrier connected to the output shaft by selective drive through direct drive and through countershaft driven quill shafts to the clutch carrier.

Abstract: A safety overload clutch wherein the driving and driven members are retained in driving relation by a primary roller on one of the members urged radially into a groove on the other member by an elastic flexure ring loaded by one or more secondary rollers on the one member positioned substantially diametrically opposite the primary roller. When the load on the driven member exceeds a predetermined value, the primary roller rolls out of its groove causing additional deflection of the flexure ring.