Patent · US Expired

Positive tape feed with multiple yarn windings

US4136837A · kind A · utility

5Cited by
5References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 26, 1977
Grant dateJan 30, 1979
Priority date
Expiry dateAug 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.