Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 4498562 | Disc brake arrangement for rail vehicles A brake arrangement is disclosed for rail vehicles which include two track wheel sets having two wheels connected by a shaft. A multi-stage reduction gear is connected to each track wheel shaft. The two multi-stage reduction gears are connected to an elec... | 02/12/1985 |
| 4461217 | Motorized railway bogie A bogie for a rail vehicle comprises a hollow jacket having opposite open end faces forming an electric motor housing. A stator winding assembly is press fit into the hollow jacket and receives a rotatably mounted motor shaft which has an axis extending p... | 07/24/1984 |
| 4434719 | Steering motorized truck A steerable railway truck includes a main frame structure having a bolster and a pair of side frames to be secured to a car body. A pair of "C" shaped sub-frames are interconnected. Extending arm portions of the sub-frames are slidably mounted to the end ... | 03/06/1984 |
| 4409904 | Double-axle drive for railway trucks of railraod vehicles A double-axle drive for trucks of a railway vehicle has a drive motor with a drive shaft extending parallel to the longitudinal axis of the vehicle and a respective gearing mechanism engaged with each end of the drive shaft. Each gearing mechanism is driv... | 10/18/1983 |
| 4398468 | Railway propulsion system suspension A propulsion system suspension is provided for a railway truck of the type which includes a pair of wheels associated with the propulsion system which are secured to the ends of an axle which is mounted to extend transversely between the ends of first and... | 08/16/1983 |
| 4278027 | Resilient railway truck double axle drive A double axle drive for railway trucks of rail vehicles. The axis of rotation of the drive motor extends parallel to the longitudinal axis of the vehicle and extends between the wheel-set axles. The drive motor drives the wheel sets through a bevel gear a... | 07/14/1981 |
| 4192238 | Railway car drive system 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 independ... | 03/11/1980 |
| 4167906 | Railway vehicle bogies 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 ... | 09/18/1979 |
| 4164188 | Self steering railway car A railway car includes a chassis supported on two sub-frames which are relatively pivotally movable. The sub-frames support propulsion motors, differentials, and driven flanged wheels. And intermediate steering axle and wheel assembly are transversly mova... | 08/14/1979 |
| 4148262 | Railway vehicle drive Drive system for a railway vehicle. In a railway vehicle utilzing a high speed motor whose output shaft is arranged generally parallel to the direction of movement of the vehicle, there is provided a gearing system for connecting said motor to a driven ax... | 04/10/1979 |
| 4135456 | Powered railway car steering assembly A railway car includes a central steering axle transversely movable on the car body in response to track curvature. Actuating members connected to the transversely movable axle include longitudinally extensible and retractable elements which steer end axl... | 01/23/1979 |
| 4135453 | Motorized bogie 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 g... | 01/23/1979 |
| 4130065 | Dual axle railway driving truck A drive for a railway track-bound propulsion vehicle includes a traction motor with output shafts on both sides. The motor is longitudinally arranged between two driving axles of a track-bound propulsion vehicle and is designed without a housing. In addit... | 12/19/1978 |
| 3990372 | Railway vehicle articulated truck This application discloses a railway vehicle truck of a general configuration having independently movable side frames, wherein the side frames are provided with resilient connections with the wheel-axle units which allow universal turning movement but su... | 11/09/1976 |
| 3941061 | Pneumatic railway car suspension A rail vehicle, especially a passenger train car for high-speed trains provided with air springs associated with each swivel truck in symmetry with the longitudinal central plane, their distance from center to center being so much smaller than the track g... | 03/02/1976 |
