Positive tape feed with multiple yarn windings
US4136837A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 1977 |
| Grant date | Jan 30, 1979 |
| Priority date | — |
| Expiry date | Aug 26, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2551/20
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A freely rotatable yarn feeding drum has a plurality of yarn loops wound thereon to form a storage winding. To both drive the drum and axially sheave the yarn forming the storage windings along the length of the drum, a drive wheel, or drive belt is engaged with the circumference of the drum in the region of the storage windings. The drive means thereby directly engages the yarn and the drum and, preferably, the axis of rotation of the drum is so set that it forms an acute angle with the axis of rotation of the drive means to provide an axial frictional component between the drive means, typically a drive belt, and the windings on the drum so that the windings are fed axially.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.