Web turning rod having air flow control means

US4453465A · kind A · utility

Assignee

• MAN Roland Druckmaschinen AG · DE

Inventors

• Albert Heller · Pestenacker, DE
• Hubert Birkmair · Friedberg, DE
• Hermann Grauberger · Augsburg, DE

Key dates

• Filing date: Apr 19, 1983
• Grant date: Jun 12, 1984
• Expiry date: Apr 19, 2003

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H2406/14
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

To permit adjustment of air flow through air exchange openings (7,8,9;25,29) of a hollow outer turning rod tube (11,23,30), a plurality of inner tube elements (12,24,32) are axially located within the outer tube, and formed with part-circumferentially extending slits (13) in alignment with the air exchange openings. The inner tube elements can be, slectively, rotated for alignment of the slit (13) with the air exchange openings, or blocking of the air exchange openings by solid portions of the tube elements. Rotation can be effected by adjustment knobs (FIGS. 1-3: 17) having an inner gearing (16) engaging a side gearing (15) on the tube elements; by finger adjustment (FIG. 4) or by positioning wheels (FIG. 5: 34) in engagement with a roughened, stippled, ribbed or corrugated surface portion or region of the inner tube elements.