Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 6119602 | Axlebox suspension system for bogie truck In a bogie truck for a railroad vehicle, provided is an axlebox suspension system in which respective wheelsets can make rotational displacement toward the center of a curve in the railroad at the time of passage of the truck through the curve in the rail... | 09/19/2000 |
| 4510871 | Railroad vehicle bogie A bogie for a railroad vehicle comprises a pair of wheel sets mounted in a frame which is pivotally connected to the vehicle so that it can rotate about a substantially upright axis. The wheel sets are connected to the frame resiliently and by links which... | 04/16/1985 |
| 4356775 | Damped railway car suspension The suspension includes a moveable load arm assembly adapted to support a railcar axle, at least one elliptical cross-section rod spring carried by the load arm assembly in load bearing relation with a railcar body, a frictional damping surface connected ... | 11/02/1982 |
| 4150627 | Self-contained frictionally damped resilient suspension system for railcars A railcar shock insulated suspension system is provided with unique variable rod springs and co-related variable rate friction damping means. Each rod spring includes an elongated solid body of elastomeric material which, when subjected to radially direct... | 04/24/1979 |
| 4109586 | Universally suspended snubbing railway axle truck This invention provides a railway wagon suspension unit comprising a frame mounted over a saddle accommodating an axle journal housing. The saddle can rock laterally relative to the journal housing. Suspension means are disposed between the frame and the ... | 08/29/1978 |
| 4003316 | Articulated railway car trucks An articulated railway truck assembly is provided with two wheelset assemblies, each of which is attached for pivotal movement about a pivot near the center of the truck frame assembly and each of which extends beneath the respective adjacent ends of the ... | 01/18/1977 |
| 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 |
