Hand brake for railway vehicles
US4236424A · kind A · utility
10Cited by
4References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 8, 1979 |
| Grant date | Dec 2, 1980 |
| Priority date | — |
| Expiry date | Feb 8, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2048
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A ratchet operated chain-type hand brake for railway vehicles characterized by a housing for enclosing the ratchet mechanism and a chain wind-up drum. The ratchet mechanism includes an operating pawl for taking up the chain and a holding pawl for holding the chain take-up, both pawls being in constant engagement with a single ratchet to eliminate lost motion of the operating handle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.