Single facer for making single faced corrugated material

Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With bending – folding – winding – or wrapping means

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Details

291211, 425369, B29D 714

Patent

active

043482503

ABSTRACT:
The second corrugating roll of a machine for making single-faced corrugated board is formed from an inner core and a cylindrical sleeve having a number of spaced circumferential grooves. The sleeve may be made up from a number of axially abutted rings, the circumferential grooves being formed in the abutting faces of adjacent rings. Longitudinal passageways are provided in the outer peripheral surface of the core and radial apertures connect the passageways with the grooves, so that suction applied to one end of the passageways holds the material being corrugated in the corrugations of the roll. In a modified form the passageways are formed in the inner peripheral surface of the sleeve.
The core is hollow and steam, or other heated fluid, passed through it to heat the roll.

REFERENCES:
patent: 652280 (1900-06-01), Leske
patent: 780656 (1905-01-01), Hinkel
patent: 2975833 (1961-03-01), Magnani
patent: 3947206 (1976-03-01), Delight
patent: 3958311 (1976-05-01), Kusters et al.
patent: 4177102 (1979-12-01), Tokuno
patent: 4245975 (1981-01-01), Hattori
patent: 4270969 (1981-06-01), Kelly

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