Low rise drop yoke system
US5370058A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 15, 1993 |
| Grant date | Dec 6, 1994 |
| Priority date | — |
| Expiry date | Nov 15, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49819
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A train or a significant portion thereof comprising coupled freight or passenger cars or a close coupled multi-car "pack" of cars, including one or more with defective running gear are diverted to a service track, having a first work station incorporating a working "gap" overlying a lateral trench. The rails of the track, at the trench, are reinforced, and pivotted as swing rails, for lateral retraction alongside the trench. A track having a trolley thereon can move along the bottom of the trench between the first work station and a second similarly, equipped work station. The trolley has a low-boy, high capacity jack capable of raising the axle together with the associated car end or ends, to be blocked-up in-situ. The pivotted swing rails are retracted permitting tile defective wheel set to be lowered clear of the car, and the trolley then moved back along the trench to the second work station, which has a second service track extending parallel with the first service track and also has swing rails there across. At the second work station the defective wheel set is replaced by a replacement set from the second service track. The procedure is then reversed to substitute the replac…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.