Abstract: An automatic transmission comprising a plurality of speed-change hydraulic clutches selectively operated in dependence of various speeds separately carried by an input shaft and an output shaft, and wherein working oil is supplied from a hydraulic oil source to the hydraulic clutches through (a) fixed oil passages provided in a casing, (b) conduction pipes arranged in coaxially spaced relation within one another in a central bore in the input shaft and/or the output shaft, and (c) communicating passages formed in the input shaft and/or output shaft and connected to the hydraulic clutches. The conduction pipes are respectively connected at one end with the fixed oil passages in a fixed or pivotal manner and at the other end with the communicating passages with seals arranged between the outer peripheries thereof and the inner periphery of the bore in the shaft.

Abstract: A load-splitting transmission has a housing in which are journaled about fixed axes a central shaft and two outer shafts. One end of the central shaft is connected to the drive and the other end of the central shaft, which is rotatable relative to the drive end, is connected to a load. The two outer shafts are each constituted as an outer tube shaft extending a part of the length of the respective outer shaft and a central torsion or core shaft extending the full length. A plurality of sets of gears are provided, each including a central gear on the central shaft and an outer gear on each of the outer shafts and meshing with the central gear. Synchromesh clutches can connect the various gears to the respective shafts for shifting. In addition at least some of the gears may be limitedly angularly displaceable on the respective shafts to compensate for misalignment and prevent gear clashing.

Abstract: A two speed auxiliary truck transmission utilizes two counter shafts. Two power take-off shafts, which are double ended (i.e., each power take-off shaft extends forward and rearward) are meshed to the gears on the main shaft and counter shaft. In this way, each of the power take-off shafts may be driven forward or rearward independently of the other power take-off shaft and whether the main shaft is in direct drive or underdrive, or in neutral. Likewise, the operation of the main drive shaft is independent of whether either of the power take-off shafts is reverse or neutral.

Abstract: A simple change gear transmission having an extended range and/or number of gear ratios and minimized center distance and/or axial countershaft portion length is provided. The transmission utilizes a single main shaft and at least one countershaft which is compounded.

Abstract: A multispeed reversible transmission shiftable under load having fixed rotation axes for a plurality of gears and respective clutches. The basic structure of the transmission comprises an input gear which forms a gear train for second and third gears each of which is rotatable upon one of the aforementioned fixed axes and is connected by a respective direction clutch (forward or reverse clutch) with fourth and fifth gears also rotatable upon the respective fixed axes and meshing with one another. These fourth and fifth gears are connected by first and second speed-changing clutches with sixth and seventh gears, respectively, locatable about the first and second fixed axes, an eighth gear being connected to the seventh gear and rotatable about the second fixed axis. The ninth gear meshes with the eighth gear and is rotatable about the third fixed axis and is connectible via the third speed-changing clutch with the tenth gear which meshes with the fifth gear but is rotatable about the third fixed axis.

Abstract: Change-speed transmission providing multiple forward speeds and at least one reverse speed. An output shaft of the transmission carries a first speed pinion or gear that is rigid with a hollow shaft that carries, in turn, a gear or pinion of the reverse gear train disposed upstream of other forward speed gears or pinions. The reverse gear carries a dog that is separated from a dog carried by the closest forward speed gear by a dog and synchromesh unit. A layshaft mechanism is positioned parallel to the output shaft to increase the number of gear ratios provided by the transmission.

Abstract: A compact transmission arrangement for a vehicle includes a constant mesh transmission and a bevel gear driven by the transmission which are mounted within a common housing assembly releasable from the vehicle.

Abstract: A compact manual transmission includes an input shaft and plural countershafts, one of which serves as the output shaft and the other of which serves both as a countershaft for obtaining a low reduction ratio forward drive and as a reverse idler shaft. Low forward drive is through a gear train comprising three reduction ratio gear sets controlled by a single clutch. Reverse drive is through two reduction ratio gear sets controlled by a single clutch. The transmission is particularly adaptable for use in an automotive vehicle having a transversely mounted engine. The transmission is further adaptable for direct connection with the ring gear of an associated differential, such as in a front-wheel drive vehicle.

Abstract: A change gear transmission of the group design, especially for vehicles for agriculture and construction with a group transmission following a velocity control transmission the output shaft of which is arranged parallel to a main shaft. This main shaft is provided with gears connected to the main shaft for rotation therewith. The main shaft is driven through the intervention of a counter shaft of the velocity control transmission, which counter shaft is parallel to the main shaft. The counter shaft is through an input transmission continuously frictionally connected to the input shaft which latter is adapted by a clutch element in a direct velocity stage to be coupled to said main shaft. All gears of the main shaft mesh directly or indirectly with gears freely rotatable on said counter shaft and output shaft respectively.

Abstract: A gear box having an input shaft and an output shaft which are coaxial and two lay shafts parallel to and spaced from the input shaft, the lay shafts having respective gears fixed to them, said gears engaging with a gear fixed to the output shaft and the lay shafts carrying gears which mesh with respective gears which are non rotatably carried on the input shaft, the said meshing input and lay shaft gears providing respective ratios through which torque is transmitted from the input shaft to either one of the lay shafts, through the appropriate permanently meshing gears to the output shaft and clutch means for selectively engaging the gears on the lay shafts with said shafts.

Abstract: A gear transmission with overtop or overdrive for automotive vehicles includes an overdrive gear mechanism mounted immediately after the rear end wall of a transmission case. The overdrive gear mechanism includes a pair of overdrive gears, one located on the output shaft of the gear transmission and the other on the countershaft of the gear transmission, operable to rotate the output shaft at a higher rotational speed than the input shaft. An overdrive synchronizer assembly is mounted rearwardly of the overdrive gears such that the direction for actuating the overdrive synchronizer assembly coincides with the direction that a gear shift lever of the vehicle is shifted to obtain the overdrive position.

Abstract: A two-speed, self-propelled dolly intended for moving and elevating a load such as, for example, a mobile home. A generally rectangular frame is supported by a pair of endless belt tracks mounted on its opposite sides. A load engaging member is raised and lowered by an elevating unit connected with the frame, including at least one power driven screw jack. A pair of drive systems, one for each belt, is provided. Each drive system includes a drive wheel rotatably mounted on the frame and engaging the associated belt track. Each drive system includes a reversible, synchronous electric motor having an output shaft which is coupled to the associated belt track by a two-speed gear box which drives the track either at a traverse speed approximately equal to the walking pace of an adult human or at a relatively slower, load-carrying speed.

Abstract: In a device such as a spectrophotometer with an associated chart recorder in which the speed ratio between a first displaceable member and a second displaceable member may be selectively changed within a predetermined range of speed ratios, in a first embodiment of invention which is mechanical in nature, a number of gear trains in constant mesh with each other are provided to obtain the different speed ratios. Each of the gear trains has associated therewith a rotary disc with circumferentially even spaced apertures, the gear train obtaining an input from the first displaceable member by means of arms rotatable concentric with the discs, the arms carrying a pin adapted to enter into positive engagement with any one aperture, the number apertures depending on the scale served by the associated gear train.

Abstract: In combination with a transmission having a multiple input portion and a multiple output portion, each of which contains a plurality of speed change gears, is a shift control system having a plurality of fluid-pressure operated actuators that respond to movement of a preselector valve control member having a plurality of positions that correspond to separate ones of the drive ratios. Shift sensing means produce a first signal upon movement of the preselector valve control member whereas neutral position sensing means produce a second signal upon movement to neutral of the transmission input portion. A neutral sequence valve has a movable spool member maintainable in first and second alternate positions in response to the first and second signals, with mechanical interlock means, associated with the actuators, locking the transmission output portion in gear whenever the transmission input portion is in gear and locking the input portion in neutral whenever the output portion is in neutural.

Abstract: An axially short, variable-ratio gear transmission suitable particularly for motorcycles has a first or input shaft, a second or output shaft, and a countershaft. First and second rotatable gears on the input shaft permanently mesh with respective first and second rotatable gears on the output and counter shafts. The first and second gears on the countershaft are permanently connected for joint rotation, a first coupling permits one of the two gears on the first shaft to be coupled to the first shaft, and a second coupling similarly may couple one of the gears on the second shaft to the latter.

Abstract: Transmission for tractors comprising an input shaft rotatably supported by a casing having means defining openings therein, a second speed change shaft disposed coaxially with the input shaft and rotatably supported at its opposite ends by further means defining openings in the casing, and speed change gears positioned outside the casing to operatively connect the input shaft and a first speed change shaft.

Abstract: A transmission for connecting a prime mover with a load, such as vehicle wheels, in which the transmission is of group construction with a primary group shiftable under load and at least one other group which is not shiftable under load. The group shiftable under load provides for at least two forward speeds and a reverse speed at the main output shaft of the transmission which supplies the power to the load.

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: A multiple-spindle machine tool or a multi-speed transmission wherein the spindles or shafts carry several fluid-operated aggregates in the form of clutches, brakes and/or work clamping devices which receive pressurized fluid by way of axially movable spools mounted in or surrounding the respective spindles or shafts. The spools are movable axially by a stationary cam (in a machine tool) or by an indexible cam (in a transmission), and receive pressurized fluid which is admitted axially or radially, depending upon whether the spools are received in or surround the respective spindles or shafts.

Abstract: An operating device for a double drum winch that has a hydraulically operated clutch, a brake and a hydraulic pressure variable control valve, and a single control lever connected to the hydraulic pressure variable control vavle to enable the operation of a hook and boom by one control lever so as to simplify the function and uses of the winch.