Abstract: A railway vehicle drive unit (12) is a drive unit to rotatably drive a wheel of a railway vehicle. More specifically, it includes a reducer housing (13) held on an inner diameter surface of a wheel (11), and integrally rotating with the wheel (11), an input side rotation member (14) having eccentric parts (16a) and (16b), and connected to a drive source, revolution members (17) and (18) supported by the eccentric parts (17) and (18) in a relatively rotatable manner, to execute revolution motion around a rotation axis of the input side rotation member (14), a rotation regulation member (119) to prevent rotation motion of the revolution member, allowing the revolution motion thereof, and a periphery engagement member (20) fixed to the reducer housing (13), to rotate the reducer housing (13) at speed reduced with respect to the input side rotation member (14) by engaging with a periphery of the revolution members (17) and (18).

Abstract: A driving mechanism is disposed in the bottom of a door for driving the door and includes a reduction gearing and a motor fixed to the door, and a gear coupled to the reduction gearing and engaged with two shafts for rotatably supporting the wheels of the door so as to apply a downward force to the pinions in order to prevent the wheels moving upward away from the tracks. A retaining device is fixed to one of the tracks or fixed to the ground and has an opening for engaging with one of the pinions so as to maintain the door in place.

Abstract: A carriage for a mobile storage system, including a frame having an inverted U-shaped cross section, including two downwardly depending sides extending the length of the frame. A drive shaft is journaled to the frame and rotated by a prime mover. A drive wheel affixed to the drive shaft rotates with it. A driven shaft, journaled to the frame and oriented parallel to the drive shaft, carries a driven wheel within the frame, for moving the carriage along the rails. A drive chain or belt is provided for transmitting power from the drive wheel, via the driven shaft, to the driven wheel. The driven shaft is journaled to the frame by means of flangette bearings, each bearing affixed to a respective offset mounting bracket. Each bracket is affixed to one of the frame sides, there being insufficient clearance between the driven wheel and the frame sides for the placement of the flangette bearings.

Abstract: A robot carrier structure constituted by a carriage movable on rails and supported on four wheels two of which are mounted on a driven shaft and two are idle wheels. Each drive wheel has a structure adapted to ensure a high adherence to the rail, particularly due to the provision of a pair of rings of elastomeric material in engagement with the rolling surface of the rail. Engagement means movable laterally on the rail are provided to increase the adherence of the drive wheels.

Abstract: A railway car includes prime movers mounted to a car body directly connected to pairs of gear boxes to drive pairs of axles mounted on a pair of trucks, with direct connections between the gear boxes and the connections being such so as to permit independent removal of the trucks from the prime movers and to facilitate the installation of interchangeable variable speed drives.

Abstract: The drive means for each wheel set is connected via a two bar-like connecting member to an intermediate portion of the bogie frame or to a cross-member in a manner such that longitudinal forces are transferred to the vehicle body. Also, the opposite side of the drive means is mounted on an axle of the wheel set and is connected to the bogie frame in a manner so as to permit the transmission of transverse forces to the bogie frame.

Abstract: A driving bogie having at least one driving motor, a pair of driven wheel-and-axle units and an axle gear for each of the axles of the wheel-and-axle units rigidly connected with the bogie frame, is arranged with a hollow transmission shaft for the axle gear encircling the axle of a respective wheel-and-axle unit and with a hollow Cardan shaft rigidly connecting the hollow transmission shaft with the wheel-and-axle units through centering articulated couplings. The invention is particularly directed to the structure of the articulated couplings which are formed with a number of hinged levers and with ball joints at the ends of each of the levers, the number of the hinged levers being an even number greater than three, with half of the hinged levers being arranged in the direction of rotation of the coupling and with the other half of the hinged levers being arranged in the opposite direction.

Abstract: Two sets of independently rotatable gear wheels are interconnected between the differential gear coupled to the motor and the two respective reduction drives coupled to the gear wheel rack and pinion drive and adhesion wheel drive. The sets of gear wheels are connected at different drive positions to the differential gear to permit a reduction in stresses in the gear wheel drive and associated rack. A blocking device which is used to block the drive of the gear wheel when needed also allows the adhesion wheel drive to be driven at a higher rate. A clutch is used to vary the drive between the gear wheel and adhesion wheel drive.

Abstract: A drafting stool having electric motors both for moving it along the floor parallel to the forward edge of a drafting table, and for changing the elevation of the seat. Provision is made for guiding its travel along the floor, for preventing overturning thereof, for initiating any desired adjusting movement by the occupant's lurching of his weight in various directions, and for bringing the stool to a halt at any desired position of adjustment either manually, or by means of preset limit control devices.