Presses – Concurrent pressing and conveying – Endless conveyer type
Patent
1978-05-15
1980-03-18
Feldman, Peter
Presses
Concurrent pressing and conveying
Endless conveyer type
100 93RP, 156555, 1565835, 308 35, 308 9, 425371, B30B 506
Patent
active
041933427
ABSTRACT:
A sliding surface seal on continuous laminating machines, with object to be laminated placed between two endlessly rotating bands. Pressure is built up on backside of these bands facing away from the object, by fluid in the chambers formed by the bands, by pressure plates fastened in the machine and by sliding seals. These seals are arranged in grooves encircling the edge of the pressure plates by fluid or mechanical pressure or by reaction forces issuing from the pressed object, movable outwardly or inwardly relative to the groove. The seal has U-shaped holding strips and support angles directed laterally or towards the groove bottom on the holding strips to absorb the thrust, acting in the lengthwise direction, and corresponding recesses on the pressure plates issuing from the grooves on both sides of the groove or in the groove bottom. Radial slide bearings of dry sliding material may provide the support surfaces which absorb the friction forces.
REFERENCES:
patent: 2135763 (1938-11-01), Nicholson
patent: 2578551 (1951-12-01), Hornbost et al.
patent: 3300374 (1967-01-01), Baker et al.
patent: 3620158 (1971-11-01), Torelli et al.
patent: 4025272 (1977-05-01), Camp
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