Guard for the nips of rolls in calenders and like machines

Details Guard for the nips of rolls in calenders and like machines Guard for the nips of rolls in calenders and like machines

1989-11-20

1991-08-27

Sewell, Paul T.

Presses

With additional treatment of material

Cutting, breaking, piercing, or comminuting

34117, 100 53, 100 73, 100 74, 100173, F16P 312, B30B 1500, B30B 300

Patent

active

050423738

ABSTRACT:
A guard at the inlet side of the nip of two rolls in a calender has a hollow support for two blocking devices with movable sections extending close to the peripheral surfaces of the rolls to prevent injury to the fingers of an operator. The support defines one or more channels for steam or for another fluid medium which is discharged through one or more rows of ports to moisturize a running web of paper, foil or textile material or to dry, heat or cool the web and/or the rolls.

REFERENCES:
patent: 629937 (1899-08-01), Trotman
patent: 2993432 (1961-07-01), Youngchild
patent: 3337968 (1967-08-01), Krikorian et al.
patent: 3994769 (1976-11-01), Gersbeck
patent: 4295421 (1981-10-01), Abendroth et al.
patent: 4454812 (1984-06-01), Johne et al.
patent: 4748906 (1988-06-01), Ashmore
patent: 4867055 (1989-09-01), Hutter et al.

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