Patent · US Expired

Method of and apparatus for rectifying distortion in an endless pressing band

US4177725A · kind A · utility

6Cited by
1References
2Claims
0Family size

Assignee

Inventor

Key dates

Filing dateOct 4, 1978
Grant dateDec 11, 1979
Priority date
Expiry dateOct 4, 1998

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB29C2043/486
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

In apparatus having an endless pressing band, formed of a layer of rubber with a steel-wire fabric connected thereto, passing around a heating drum, two associated guide rollers and a hitch roller, the relative positions of advancement of the opposite ends of a transverse weft wire of the steel-wire fabric are sensed by photoelectric cell arrangements and, upon sensing of a lagging of one end behind the other, control means are activated to move the bearing at one end of the hitch roller towards or away from the heating drum while retaining the axes of the hitch roller and the heating drum in a common plane.

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