Paper making and fiber liberation – Processes and products – Reclamation – salvage or reuse of materials
Patent
1980-01-09
1981-05-12
Chin, Peter
Paper making and fiber liberation
Processes and products
Reclamation, salvage or reuse of materials
162203, 162264, 162275, 162301, 162352, 162DIG7, D21F 166
Patent
active
042670179
ABSTRACT:
A method and apparatus for forming a fibrous web between a pair of forming wires. The apparatus includes an imperforate rotatable roll and a pair of liquid permeable forming wires which meet about a portion of the surface of the rotatable roll. Means are provided for delivering a liquid suspension of fibers between the forming wires as the wires are being received about a portion of the rotatable roll. The specific improvement of the present invention is centered around an arcuate imperforate roof conforming to the periphery of the rotatable roll along a limited part of the portion in which the twin wires are forming the sheet, with injection means for injecting pressurized air along the surface of the roof to form an air film therealong. Collector means are provided at the end of the forming portion for collecting liquid expelled from the forming wires during their travel along the portion of the roll.
REFERENCES:
patent: 3056719 (1962-10-01), Webster
patent: 3150037 (1964-09-01), Lee
patent: 3311533 (1967-03-01), De Montigny et al.
patent: 3565757 (1971-02-01), Jordansson
patent: 3844881 (1974-10-01), Moody
patent: 3876498 (1975-04-01), Justus
patent: 4028174 (1977-06-01), Myren
Beloit Corporation
Chin Peter
LandOfFree
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