Device for braking winding cores
US4356983A · kind A · utility
5Cited by
4References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 24, 1980 |
| Grant date | Nov 2, 1982 |
| Priority date | — |
| Expiry date | Sep 24, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D49/16
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A braking device for winding cores for webs of material to be unwound with varying web tension. The device includes a pressure medium actuated cylinder piston unit controlling brake shoes which act on the winding core trunnions. The cylinder-piston unit comprises at least two longitudinally aligned pistons having their axes coincident in the operating direction and abutting on each other in their rest positions. The pressure medium is applied to the pistons individually or in tandem to produce different braking forces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.