Rail vehicle for tie loading and unloading
US6089162A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 11, 1998 |
| Grant date | Jul 18, 2000 |
| Priority date | — |
| Expiry date | Aug 11, 2018 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01B29/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A railway maintenance vehicle exchanges worn crossties for new ones. Worn ties are collected and stored in open-top gondola cars, preferably progressing longitudinally. New ties are simultaneously unloaded from the gondola cars for distribution along the-track. Flange-wheeled tie transport vehicles such as a mobile crane and a bundle clasping transport travel on rails atop the gondola cars to move worn and new ties between collection and distribution devices and the respective storage and unloading locations. Gaps between the cars are bridged by hinged telescoping rail sections. The travel distance between the storage or unloading location and the collection or distribution points change over time. To improve efficiency, at least one intermediate temporary storage basket is moved along the cars and can be passed over by the transport vehicles. The basket is used, preferably with a third tie transport vehicle, to assist in handling bundles and to shorten the trip of the first or second transport for collection or delivery. The basket is particularly useful for accumulating a bundle of new ties for pickup by a bundle grappling transport vehicle. The vehicle can be limited to collecti…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.