Did You Know...
...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 6352294 | Wheel for a track travel moving body, moving body provided with same, rail and travelling equipment using rail A wheel comprises a main body, a tread making a contact with a top face of the rail head of a rail, and a flange. At least at a portion of the wheel tread which is in contact with the rail, there is provided a tread-forming component formed of a ceramic-p... | 03/05/2002 |
| 6073346 | Dual alloy railroad wheel A railroad wheel formed from at least two metallic alloys. In one embodiment, a railroad wheel has a body formed from a first alloy and a rim formed from a second alloy initially in powder form. In an exemplary embodiment, to form the dual alloy wheel the... | 06/13/2000 |
| 5658030 | Trolley wheels Trolley wheels and guide rollers for a monorail trolley system and a method for reducing debris originating from trolley wheels and guide rollers particularly in the production environment of producing iron-sensitive photographic materials.... | 08/19/1997 |
| 5026106 | Tram car wheel There is provided a new and useful tram car wheel comprising a metallic hub section, a formed non-metallic wheel on the hub, a pair of cable flanges on the wheel, and an open reinforcing structure in the wheel anchored to the hub section.... | 06/25/1991 |
| 4307910 | Railway wheels and light weight axles A lightweight wheel and axle assembly that reduces unsprung weight thereby improving the ride. The assembly also diminishes hunting and reduces tendencies towards unstable dynamic conditions. The wheel and axle assembly is easily adaptable to conventional... | 12/29/1981 |
| 4049308 | Synthetic flanged carrier roller A carrier roller comprising (1) an integral roller tire subassembly comprising a cylindrical bearing, two axial inserts, and a molded resilient roller tire and (2) an inner race. In one embodiment, the carrier roller further comprises (3) a roller bushing... | 09/20/1977 |
