Bolster for a railroad car truck
US4357880A · kind A · utility
49Cited by
4References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 25, 1980 |
| Grant date | Nov 9, 1982 |
| Priority date | — |
| Expiry date | Aug 25, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61F5/34
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A bolster for a railroad car is described as having larger than normal wedge shoes which necessitate enlarged pockets that reduce the strength of the bolster casting, thereby making it more susceptible to fracturing, unless the high force concentrations in the areas of the pockets are eliminated or substantially reduced. This is accomplished primarily by the removal of portions of the bolster sidewalls between the pockets and outboard lugs for restricting movement of the sideframes longitudinally of the bolsters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.