Truck mounted tie exchanger with self-aligning tie clamp
US5305692A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1992 |
| Grant date | Apr 26, 1994 |
| Priority date | — |
| Expiry date | Jul 14, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S294/902
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A tie exchanger assembly is mounted upon a truck and is used for removal and insertion of ties in a railroad roadbed. A boom is mounted to a rail clamp table which is vertically movable between an upper stored position and a lowered operable position. The boom is mounted to the center of the rail clamp support table and is rotatable 180.degree. about a vertical axis so that the boom may be used for manipulating ties on both sides of the vehicle. Rail clamps and rail engagement wheels are mounted to the underside of the rail clamp table. The boom is pivotable about a horizontal pivot axis. A tie clamp is mounted at a distal end of the boom. A self-aligning tie clamp may advantageously be used so as to clamp concrete ties or other ties with irregular or concave surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.