Abstract: The electric food processor has a housing in which there is disposed an electric motor with a motor shaft. The motor shaft, via a gear mechanism, drives three or more concentric output drives at different rotational speeds. The common axis of rotation of the output drives is spaced a distance from the motor shaft. Working tools are selectively coupled to the output drives and the working tools rotate in a working container which is placed on the housing. In order to expand the possible uses of the food processor, the fastest output drive rotates at a speed that is suitable for a mixing tool, and the gear mechanism has at least two sets of input gear teeth that are rotatably mounted independently of each other, so that the fastest output drive can be driven out of direct engagement with the slower output drives.

Abstract: A drive system includes a hollow axle with a jackshaft that extends therethrough and is mounted to extend parallel thereto. Bearings rotatably connect both the hollow axle and the jackshaft to first and second chassis portions. A first end of the jackshaft extends beyond the hollow axle and is connected to a motor by a pair of clutches interconnected by a drive belt. A second end of the jackshaft extends beyond the opposite end of the axle and has a drive sprocket attached thereto that is interconnected to a first idler sprocket on an idler shaft by a first drive chain. A second idler sprocket is connected to a driven sprocket, which is affixed to the axle, by a second inboard drive chain.

Abstract: A gear-based airboat transmission is provided for driving a pair of coaxial, counter-rotating propellers. A drive shaft couplable to an engine crank shaft extends rearward into the transmission case, and a pair of coaxial hollow driven shafts extend rearward out of the transmission case, to which are attachable a pair of propellers. A first gear train, containing an even number of gears, reverses the rotational direction of the engine; a second gear train, containing an odd number of gears, retains the rotational direction of the engine. Improved stability characteristics are imparted by supporting the drive shaft at two points within the case and also by positioning the drive and the driven shafts in vertical alignment. The adaptability of the gear-based transmission to being coupled with an automobile engine confers improved noise and efficiency characteristics.

Abstract: A speed reducer assembly for use with a power hand drill comprising a speed reducer connected to the rotating hub of the drill and having a gear arrangement including a first rotating member and a second rotating member, the second rotating at a speed slower than the first rotating member, and comprising a clamp removably positionable around the speed reducer and including a handle such that when the handle is held stationary, the speed reducer is prevented from rotating when the drill is energized.

Abstract: Herein disclosed is a power transmission which comprises: two housings coupled to rotate relative to each other; an input shaft rotatably borne in one of the housings; an output shaft rotatably borne in the other housing; two transmission paths coaxially arranged on the axis of the relative rotations of the two housings; a first transmission mechanism for transmitting rotations between the input shaft or the output shaft and the two transmission paths to rotate the two transmission paths in opposite directions; and a second transmission mechanism for transmitting rotations between the other of the input shaft or the output shaft and the two transmission paths to rotate the two transmission paths in the opposite directions and for absorbing the difference, which is caused by the relative rotations of the two housings, between the rotating speeds of the two transmission paths.

Abstract: A device for contra-rotating two concentric shafts. One shaft is hollow in order to accommodate the other shaft. At least one drive shaft is connected to a power source and the concentric shafts are connected to each other by a geared transmission. The transmission includes one or more crown wheels which mesh with cylindrical pinions.

Abstract: The present invention includes a stationary housing having disposed therein an epicyclic star gearset including sun, idler, and ring gears. The sun gear includes an input shaft extending therefrom, and the ring gear includes a first output shaft extending therefrom. A bull gear having a second output shaft extending therefrom is also provided and is operatively connected to a pinion gear, which pinion gear is fixedly connected to an idler shaft extending from said idler gear. In accordance with a preferred embodiment of the invention, the gears are predeterminedly sized for obtaining equal and opposite rotation of the first and second output shafts during operation.

Abstract: A cogwheel drive mechanism for driving at least one aircraft propeller or helicopter rotor through two transmissions, with two axially displaced transmission-connection shafts and at least one output shaft in the form of a propeller shaft or rotor shaft. The object is to ensure that at least one driven section will remain fully functional between one of the transmissions and one propeller or the other during any conceivable type of malfunction. There are two spatially separated individual drive mechanisms, each of which is accommodated in a separated housing that accommodates sections of one or both of the output shafts and each of which has one of the two connecting shafts.

Abstract: A marine drive unit (1) includes a lower gear case (8) forming a torpedo housing (9). A pair of coaxial propeller shafts (21, 25) are rotatably mounted in the housing and carry a pair of propellers (10, 11) thereon. The propeller shafts are driven by a pair of opposed driving gears (16, 24) suitably connected through a generally vertical main drive shaft (14) to a marine engine (4) and mounted on the horizontal drive axis (17). A pair of thrust bearings (44, 45) adapted to carry forward thrust loads are respectively disposed adjacent the facing portions of the opposed driving gears, with the pair being separated by a spacer (46) tightly confined therebetween. The spacer is locked against rotation but is freely floatable in an axial direction, and transfers the forward thrust load from one bearing to the other, so that the load is ultimately transferred from the outer propeller shaft (25) to the inner central shaft (21).

Abstract: A spider differential assembly (7) of a marine drive is constructed so that the spider (16) and its associated spider pinion gears (20) can float in all directions, except about the common central axis (5) of the propeller drive shafts (4, 8). More particularly, a spider is provided with a central hub opening (18) through which the main drive shaft passes. A plurality of radially extending spindles (19) carry the spider gears and extend outwardly where they terminate in an enclosure (30, 31) arranged to prevent circumferential spider movement about the common drive shaft axis, but which permits free spider floating.

Abstract: The present invention provides apparatus which can be incorporated into a powered instrument that rotates a tool at varying rotational speeds and torques. The invention includes at least two drive plates, each of which rotates at a different speed and which exerts a different magnitude of torque. A movable member within the instrument selectively engages one of the two drive plates to couple that drive plate to the output shaft of the instrument. The apparatus can include a torque limiter which couples the input shaft to the output shaft only when the resistance to rotation offered by a drive plate is less than a predetermined value.

Abstract: A transmission for a laundry machine has at least two operating modes. The transmission includes input means selectively rotatable for oscillation in one operating mode and for unidirectional rotation in another operating mode. A pair of output means are operable for conjoint oscillation and unidirectional rotation with the input means, respectively. Means for transmitting the rotation of the input means to the output means includes means coupled with one of the output means for driving it, driven means associated with the input means for being driven by it, and means selectively operable for coupling the driven means with the other of the output means and with the output means for coupling the driven means and the driving means.

Abstract: Two eccentric weights of a vibrator are mounted, respectively, on two coaxial shafts, one of which is a hollow shaft mounted on the other shaft. The two shafts can be connected for rotation in unison, and can be separated for relative rotation to alter the angular relationship between the weights. Mechanism is provided to alter the angular relationship between the weights while both shafts continue to rotate. The hollow shaft and the other shaft are connected, respectively, to one end of two beveled gear trains which can rotate as a unit about the axis of the shafts. By changing the angular relationship between the gears at the other end of the gear trains, the angular relationship between the eccentric weights, and hence the stroke of the vibrator, can be changed.

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: The invention provides a helicopter of the type having two coaxial counterrotating rotors with a differential drive mechanism interposed between the power plant and the rotors. The power output of the power plant is coupled to the power input of the differential drive which has two power outputs, one of which is directly connected to the mounting hub of one of the rotors and the other one is connected to the mounting hub of the other rotor through a rotation inverting mechanism. Two embodiments are described and illustrated which differ only by the construction of the differential and the rotation inverting mechanisms.

Abstract: Drive mechanism for a four-wheel-drive tractor, comprising a pair of input shafts in double tube construction with one fitted to nest in the other, main gearing shaft assembly, differential gearing, front-wheel-drive-shaft assembly, gearing wheels provided in both frontal and rear portions of the front-wheel-drive-shaft assembly, a power-take-off shaft and a drive shaft-assembly. Driving power taken out from the gearing wheel provided in front portion of the front-wheel-drive-shaft assembly is transmitted to front wheels via a transmission shaft with a mating gear, disposed at an underbelly portion of the tractor. The drive assembly is provided above the differential gearing. With this construction, the front-wheel-drive-shaft can be made short, sufficient empty space height can be provided in the underbelly portion of the tractor, and the transmission housing can be minimized.

Abstract: A drive mechanism in which rotary power is supplied in sequence to one output shaft and then to another, the desired arrangement of one input and two outputs being provided by a planetary transmission. Each output shaft is connected to a set of notched cams that rotate at different speeds as the output shaft turns. When the notches of a set of cams become aligned, they are engaged by a pawl that arrests the associated output shaft while simultaneously releasing the other output shaft.

Abstract: A gear assembly having both compactness and a short installation length includes a mainshaft sun gear and a ring gear rotatable on a first axis, and an internal sub-assembly having intermediate ring and sun gears mounted in an eccentric bearing block for rotation on a second axis offset from the first axis. The assembly may be mounted entirely within a drive sprocket.

Abstract: A transmission having free-floating, compound, planetary gears in which the net moment tending to tilt each compound planetary gear out of its radial plane is substantially zero and in which said transmission provides contra-rotating dual output shafts and/or said transmission is capable of having multiple inputs.

Abstract: A torque transfer mechanism for transferring drive to a pair of tandem driving axles of a vehicle including two double-acting one-way devices each comprised of a plurality of wedging elements and an input shaft having a drive race thereon in operative engagement with the wedging elements. A pair of outer driven races are each adapted to be engaged by said wedging elements and each are drivingly connected to one of a pair of concentric output shafts. Each of said one-way devices has a cage member containing said wedging means and friction means connected to said cage member and in frictional engagement with said driven races.

Abstract: A ship reduction gear having at least one differential, the driving element whereof is coupled with a driving means and each driven element is kinematically associated with the gear of a respective propeller shafting. The kinematic chain associating each driven element with a respective gear comprises pairs of gears permanently meshed with said gear and fitted on ends of their respective shafts whose other ends have fitted thereon gears permanently meshed with a pinion linked with a driven element of the differential, as a result of which the power taken from the driving means is divided into four flows, two flows per gear.