Calender in a paper-making or a coating machine

Details Calender in a paper-making or a coating machine Calender in a paper-making or a coating machine

1996-11-14

1998-07-28

Gerrity, Stephen F.

Presses

With additional treatment of material

Heating, cooling, or drying

100162R, 100167, 100172, 100173, 100331, 100334, D21G 100

Patent

active

057849552

ABSTRACT:
A calender has at least four rollers that are located one above the other. The rollers rotate about roller bearings. The calender is located within a paper-making machine. Each of the rollers is rotatably driven by an independent driving mechanism. At least two of the rollers are heatable. At least 40% of the rollers are soft rollers. The outer coverings of the soft rollers are made of a synthetic material that is not sensitive to marking so that a doctor blade can be applied to the soft rollers. The calender includes a device that inserts a paper guide strip into the calender.

REFERENCES:
patent: 454322 (1891-06-01), Bacon
patent: 2300994 (1942-11-01), Thiele et al.
patent: 3044392 (1962-07-01), Minarik
patent: 3451331 (1969-06-01), Fredrickson et al.
patent: 3756912 (1973-09-01), Rooney
patent: 4022366 (1977-05-01), Rooney
patent: 4332191 (1982-06-01), Kankaanpaa

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