Patent · US Expired

Apparatus for controlling the bobbin drive of a flyer roving frame

US4254615A · kind A · utility

10Cited by

3References

8Claims

0Family size

Assignee

Schubert & Salzer · DE

Inventors

Hermann Adolf · Ingolstadt, DE
Bernhard Grupp · Weingarten, DE

Key dates

Filing date	Apr 12, 1979
Grant date	Mar 10, 1981
Priority date	—
Expiry date	Apr 12, 1999

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD01H1/34
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A device for controlling the bobbin drive of a flyer roving frame which has a bobbin, a flyer and drive roll thereon that are utilized for building a bobbin with yarn. A drive for the frame incorporating a differential gear and controls are provided for adjusting the driving speed of the flyer and drive roll stepwise to different rotational speed stages during the building of the bobbin. An additional speed adjusting device is provided for automatically varying the driving speed of the bobbin within each rotational speed stage. A switching device is provided for automatically switching the rotational speed stages.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.