Emergency brake for rail cars
US4121702A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 14, 1977 |
| Grant date | Oct 24, 1978 |
| Priority date | — |
| Expiry date | Jul 14, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61H7/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An emergency brake mechanism is provided, particularly for small railway cars such as those used for monorail systems, for braking a car released by failure of the motor and main braking system. The brake mechanism includes a brake shoe with tapered surfaces extending in opposite directions longitudinally of the path of movement of the car for wedging a brake pad between the shoe and the rail surface. The brake pad is pushed into engagement by a movable tappet, which in turn is released to move toward the rail surface by a centrifugal governor monitoring the speed of the car. The brake housing mounts the brake shoe on one side of the rail with a counter-brake surface on the opposite side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.