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| Number | Title | Issue Date |
| 7017647 | Method for casting objects with an improved hub core assembly A method of casting an object, usually a railroad wheel, is provided. A graphite mold having a drag section and a cope section has an opening in the drag section allowing molten metal to be fed upwardly by pressure into the cast object cavity. A stopper pipe assembl... | 03/28/2006 |
| 6783610 | Railway wheel alloy A steel alloy, particularly adapted for the manufacture of railway wheels is provided. Such alloy comprises essentially, in weight percentage, carbon 0.67-0.77, manganese 0.70-0.85, silicon 0.65-0.85, phosphorus less than 0.025, sulfur less than 0.025, chromium 0.18... | 08/31/2004 |
| 6679535 | Safety wheel, method of manufacturing such a wheel and bogie equipped with such a wheel This invention relates to a safety wheel, for a subway coach bogie, or the like, running on pneumatic tires, adapted to be interposed between a chassis of the bogie and a corresponding tire, said wheel presenting an outer peripheral zone having a braking ... | 01/20/2004 |
| 6205930 | Trolley wheel tread and flange A trolley wheel for a load lifting apparatus that is movable along a rail having a horizontal supporting surface. The wheel includes a crowned tread surface for rolling contact with the rail and a flange for stabilizing the tread surface in position on th... | 03/27/2001 |
| 5899516 | Railway wheel and manufacturing method of the railway wheel A wheel has both wear resistance and heat-crack resistance sufficient for use in a high-speed railway vehicle. The chemical composition of a base steel comprises 0.4 to 0.75 % C, 0.4 to 0.95% Si, 0.6 to 1.2% Mn and less than 0.2% Cr. The wheel has a pearl... | 05/04/1999 |
| 4702661 | Robot carrier structure A robot carrier structure constituted by a portal wagon movable on rails and laterially supported by a pair of carriages each comprising a pair of wheels longitudinally coupled by motion transmission means actuated in synchronism by an electric motor. Fur... | 10/27/1987 |
| 4699417 | Disk wheel, especially railroad wheel A disk wheel, especially a railroad wheel, has a composite construction of single piece metal hub and a single piece metal rim connected to each other by a wheel disk of fiber reinforced composite material providing exclusively adhesive bonds. The wheel d... | 10/13/1987 |
| 4669390 | Robot carrier structure 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, particul... | 06/02/1987 |
| 4638540 | Method for manufacturing railway wheels A method for manufacturing a railway wheel with a base material, a more wear-resistant layer at the part of the flange facing the wheel tread, and a layer in the tread which gives a high friction between wheel and rail which is relatively independent of t... | 01/27/1987 |
| 4571005 | Wheel, especially disk wheel A wheel, especially a disk wheel has six components, namely, two mirror-setrical hub sections, a wheel rim, two bending resistant wheel disks and a thrust and/or shear resistant body enclosed by the rim, by the two hub sections, and by the two wheel disk... | 02/18/1986 |
| 4230488 | Abrasion resistant rails and/or rail wheels, and process for producing the same Abrasion resistant rails or rail wheels formed from a steel alloy having between 0.02 to 0.35 percent by weight of lead or bismuth, and a process for the production of the same comprising alloying 0.02 to 0.35 percent by weight of lead or bismuth with a r... | 10/28/1980 |
| 4042273 | Rail wheel A rail wheel comprising a wheel rim, wheel disc and a wheel hub wherein at least the wheel rim consists essentially of a steel having the following composition: 0.04 to 0.12 weight percent carbon 0.20 to 0.70 weight percent silicon 3.5 to 5.0 weight percent ma... | 08/16/1977 |
