Presses – Concurrent pressing and conveying – Roll type
Patent
1979-11-28
1981-09-22
Feldman, Peter
Presses
Concurrent pressing and conveying
Roll type
100 47, 100168, 29116AD, 101 23, 101216, 72 56, 72232, B30B 304
Patent
active
042903530
ABSTRACT:
A roll which can be used in a calender to bear upon a web of textile material, paper or the like while the web travels between the peripheral surface of a floating shell of the roll and a counterroll. The shell surrounds a non-rotatable shaft which carries several rows of discrete electromagnets extending in parallelism with the axis of the shaft and along an arc of at least 200 degrees, as considered in the circumferential direction of the shaft. The electromagnets can be energized to a different extent so as to subject the magnetizable material of the shell to forces of different magnitude and to thus counteract the tendency of the shell to undergo deformation in response to the action of forces which act radially of the shell or which tend to impart to the shell vibratory movements. Additional electromagnets can be provided to cooperate with a radially inwardly extending flange at one end of the shell to hold the latter against excessive movements from an optimum axial position.
REFERENCES:
patent: 2908964 (1959-10-01), Appenzeller
patent: 3413915 (1968-12-01), Goodwin et al.
patent: 3456582 (1969-07-01), McClenathan
patent: 3489079 (1970-01-01), Aurich et al.
patent: 4062097 (1977-12-01), Riihinen
Feldman Peter
Kleinewefers GmbH
Kontler Peter K.
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