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 |
| 4765250 | Locomotive and motorized self-steering radial truck therefor An arrangement for locomotives and other railway vehicles having steerable or self-steering railway trucks, particularly motorized locomotive trucks, which incorporates axle height transfer of loads from the axles to the frame through connecting rods and ... | 08/23/1988 |
| 4429637 | Railway vehicle truck A radial axle railway truck has separate depressed center beam-type side frames mounted at their ends on journal bearing assemblies by means of elastomeric pad devices between downwardly facing surfaces on the side frames and upwardly facing surfaces on t... | 02/07/1984 |
| 4428301 | Radial axle railway truck A radial axle railway truck has a pair of depressed center side frames supported at their ends from the axles by horizontal elastomeric pad devices carried on the sides of outboard journal bearing adapters to permit steering movements of the axles, the ho... | 01/31/1984 |
| 4408541 | Bogie truck car body support system A bogie truck car body support system wherein a car body is directly supported on a truck frame by bolster springs, the system including a link arranged longitudinally of the car body and connected at one end to a link support which is fixed to the car bo... | 10/11/1983 |
| 4357879 | Air springing bogie traction link suspension A bolsterless bogie for rail vehicles has at least one link which is directly connected to the bogie frame and the rail vehicle center pivot by means of wear-free rubber joints and connecting pins. Rubber buffers limit the transverse motion between center... | 11/09/1982 |
| 4338865 | Railway truck adaptable to receive a common primary suspension and variable journal bearings A basic truck for a railway car includes a pair of side frames connected by suitable transverse disposed members. Standard structural members for holding different types of suspension and journal bearings of the car are provided and are secured to the end... | 07/13/1982 |
| 4242966 | Railway car truck transom including a tubular bearing assembly In a railway car truck a transom is provided comprising a pair of tubes rigidly connected respectively to a pair of longitudinally extending side frames. The tubes are longitudinally and vertically aligned and are located below a bolster which extends bet... | 01/06/1981 |
| 4173933 | High speed bogie A bogie with a torsion-soft corner-stiff frame for high speed rail vehicles with a wear-resistant means interconnecting the central areas of the longitudinal beams of the bogie together with one wear-resistant means each interconnecting the longitudinal b... | 11/13/1979 |
| 4161913 | Railway truck frames A rigid type truck or bogie frame in which the cross-member or bolster is secured at its end portions to a laterally extending central portion of each side member includes a cylindrical portion registering with the main body of the cross-member or bolster... | 07/24/1979 |
| 4150626 | Railway truck span bolster A span bolster arrangement for interconnecting a pair of railway trucks and mounting a railway vehicle chassis, the span bolster arrangement including a span bolster structure having side members interconnected by lateral members and being mounted on and ... | 04/24/1979 |
| 4133268 | Railway bogie-trucks and method of manufacturing same An improved railway stock railway rolling stock bogie truck includes a cross beam and a pair of spaced longitudinal side members with an asymmetrical cross-sectional configuration with the cross beam in alignment both with the bearing support and the side... | 01/09/1979 |
| 4082043 | Fabricated railway car truck In a railway car truck a transverse member is provided including spaced sides and a member joining said sides to define a hollow portion having an open bottom such that the shear center is spaced upwardly from the neutral axis of the section. A truck cent... | 04/04/1978 |
| 3961584 | Railway car truck A truck is provided with a torsionally compliant transverse member connecting to transversely spaced side frames. The side frames are suspended on the axles by a spring suspension system of generally cylindrical elastomer elements and a combined damping s... | 06/08/1976 |
