Processing roll apparatus and method

Details Processing roll apparatus and method Processing roll apparatus and method

1994-08-16

1996-10-15

Fox, John C.

Heat exchange

Movable heating or cooling surface

Rotary drum

34125, 492 46, F28F 502

Patent

active

055644945

ABSTRACT:
A processing roll adapted to engage paper or the like to heat and/or shape the same. The roll has a cylindrical side wall and defines a interior condensing chamber for steam. The interior surface of the roll is formed with longitudinal grooves which slope away from the longitudinal axis toward a central location. The steam condensates in the chamber, collects in the grooves, and flows toward a center location where the condensate is siphoned out and removed from the chamber. Improved heat transfer is achieved, and greater uniformity of heat is accomplished at the outside surface.

REFERENCES:
patent: 2170405 (1939-08-01), Greenwood
patent: 2521371 (1950-09-01), Hornbostel et al.
patent: 3481050 (1969-12-01), Cox, Jr.
patent: 4155177 (1979-05-01), Justus
patent: 4538360 (1985-09-01), Chance et al.

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