Sealing means

Details Sealing means Sealing means

1975-10-28

1977-10-18

Bertsch, Richard A.

Cutlery

34 92, 68 5E, 226 97, F16C 3374

Patent

active

040543315

ABSTRACT:
A sealing apparatus which enables web material to be passed through a gap in a wall includes a plurality of main rollers in the gap in sequential contact between which the web material passes, an auxiliary roller in contact with the first and last main rollers, and a pressure-loaded bearing block mounted in a housing which forms part of the walls surrounding the gap, the coefficient of expansion of the bearing block being greater than the coefficient of expansion of the housing, and means for heating the bearing block.

REFERENCES:
patent: 2918069 (1959-12-01), Brown et al.
patent: 3245334 (1966-04-01), Long
patent: 3281957 (1966-11-01), Ranney et al.
patent: 3593901 (1971-07-01), Eltz et al.

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