Head box guide block having bores and tubular inserts

US4146427A · kind A · utility

Assignee

• Escher Wyss GmbH · CH

Inventors

• Leo Hogel · Starnberg, DE
• Wolfgang Trudel · Bad Waldsee, DE
• Siegfried Reutter · Eberhardzell, DE
• Josef Schlegel · Tettnang, DE

Key dates

• Filing date: Feb 18, 1977
• Grant date: Mar 27, 1979
• Expiry date: Feb 18, 1997

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D21F1/028
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

The head box guide is formed of a metal block with cylindrical bores into which a pair of telescoping plastic inserts are fitted. Each pair of inserts are formed so as to define a stepped widening within the block. In addition, the inserts have terminal parts which are disposed outside of the bores and which are locked together in contiguous fashion so as to avoid any gaps. Also, a honeycomb connecting member rests on the downstream terminal parts of the inserts to form continuations of the flow passages.