Heated roll, such as a godet, in drawing units, for example
US4077466A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 23, 1975 |
| Grant date | Mar 7, 1978 |
| Priority date | — |
| Expiry date | Oct 23, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S165/161
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A heated roll for effecting heat treatment of materials has an outer cylindrical shell, an inner cylindrical shell spaced from the outer cylindrical shell, a wall defining an annular space between the shells, partitions in the annular space for forming flow channels for the heating medium passing through the inner space, feed means for introducing a heating medium into the annular space and a discharge means for discharging the heating medium from the annular space and from the roll. The discharge means includes a centrally located backflow conduit and defines a single stationary discharge opening arranged in the roll below the roll axis for discharging heating medium selectively from the lower portion of the roll to the centrally located backflow conduit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.