Tie remover and inserter
US4951573A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 6, 1988 |
| Grant date | Aug 28, 1990 |
| Priority date | — |
| Expiry date | Sep 6, 2008 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01B27/025
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A tie remover/inserter machine uses the vehicle and bucket of a conventional backhoe with various modifications. Grader blades are added to the loader bucket such that the machine may be used for grading ballast along a railroad track. Rail engagement wheels which may be raised and lowered are mounted to the chassis of the vehicle. A three section telescopic boom is equipped with a tie clamping device that also has the ability to tilt a tie in relation to the boom. The boom may be pivoted about horizontal and vertical axes. The boom is mounted to the vehicle by way of a side shift carriage which allows the proximal end (i.e., end closest to the vehicle) of the boom to be moved towards the center line of the vehicle so as to allow the vehicle to meet road clearance limitations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.