Hot air calender roll controller

Presses – With additional treatment of material – Cutting – breaking – piercing – or comminuting

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100 47, 100162B, 100170, 291132, 219 1071, B30B 1534

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active

047684330

ABSTRACT:
A device for controlling the diameter of cylindrical sections of a rotating calender roll. The device comprises at least one nozzle which directs a jet of air against the calender roll. The flow of air from each nozzle remains approximately constant. Only the temperature of the jets change as heating elements associated with each nozzle are energized or deenergized. Thermal expansion or contraction, resulting from localized heating or cooling by the air jets, corrects local non-uniformities in the calender roll diameter.

REFERENCES:
patent: 2981175 (1961-04-01), Goyette
patent: 3177799 (1965-04-01), Justus et.
patent: 3203678 (1965-08-01), Sawyer et al.
patent: 3266561 (1966-08-01), Beachler et al.
patent: 3702912 (1972-11-01), Greenberger
patent: 3770578 (1973-11-01), Spurrell
patent: 4114528 (1978-09-01), Walker
patent: 4384514 (1983-05-01), Larive et al.
patent: 4425489 (1984-01-01), Pav et al.
patent: 4545857 (1985-10-01), Wells
Pulp & Paper Magazine, Nov. 1984, pp. 54-55.
Pulp & Paper Magazine, Dec. 1984, p. 157.

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