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1. (WO1998053139) CALENDER WITH A MAGNETIC DEVICE GENERATING THE CONTACT PRESSURE BETWEEN THE ROLLS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/053139 International Application No.: PCT/IT1998/000118
Publication Date: 26.11.1998 International Filing Date: 12.05.1998
IPC:
D21G 1/00 (2006.01)
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
G
CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
1
Calenders; Smoothing apparatus
Applicants:
SGM S.P.A. [IT/IT]; Strada per Leno, 2/D I-25025 Manerbio, IT (AllExceptUS)
MOLTENI, Danilo [IT/IT]; IT (UsOnly)
Inventors:
MOLTENI, Danilo; IT
Agent:
ADORNO, Silvano; Società Italiana Brevetti S.p.A. Via Carducci, 8 I-20123 Milano , IT
Priority Data:
MI97A00120322.05.1997IT
Title (EN) CALENDER WITH A MAGNETIC DEVICE GENERATING THE CONTACT PRESSURE BETWEEN THE ROLLS
(FR) CALANDRE AVEC DISPOSITIF MAGNETIQUE PRODUISANT UNE PRESSION DE CONTACT ENTRE LES ROULEAUX
Abstract:
(EN) In a calender comprising at least a pair of rotatable parallel rolls (1, 2) and a mechanism capable of driving said rolls (1, 2) against each other, said mechanism comprises a magnet (5) generating a constant magnetic flux along the length of the rolls (1, 2), which are made of paramagnetic or ferromagnetic material. The magnet (5) is preferably an electromagnet with pole pieces (6, 7) being identical and of constant cross-section, which extend along the whole length of the rolls (1, 2), so as to ensure a uniform pressure along the contact line (4).
(FR) Cette invention se rapporte à une calandre comprenant une paire de rouleaux parallèles rotatifs (1, 2) et un mécanisme entraînant ces rouleaux (1, 2) l'un contre l'autre. Ce mécanisme est pourvu d'un aimant (5) produisant un flux magnétique constant le long des rouleaux (1, 2), lesquels sont fabriqués en un matériau paramagnétique ou ferromagnétique. Cet aimant (5) est de préférence constitué par un électroaimant ayant des pièces polaires (6, 7) identiques et de section transversale constante, qui s'étendent sur toute la longeur des rouleaux (1, 2), afin d'assurer une pression uniforme le long de la ligne de contact (4).
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Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, GH, GM, GW, HU, ID, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, UA, UG, US, UZ, VN, YU, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, SD, SZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
AU1998072335