Plastic article or earthenware shaping or treating: apparatus – Air felting type shaping means – With particle liberating means
Patent
1975-07-03
1977-06-21
Spicer, Jr., Robert L.
Plastic article or earthenware shaping or treating: apparatus
Air felting type shaping means
With particle liberating means
241 54, 241 73, 425 83, 425296, 425297, B29C 1300, B29D 700
Patent
active
040308650
ABSTRACT:
An apparatus for simultaneous defiberization of waste paper stock and uniform dispersion and accumulation of the defiberized fine fiber stock for dry web formation comprising a defiberizing drum having cylindrical teeth formed of its inside circumferential plane and an outlet part for the delivery of said defiberized fine stock formed of its lower part, a hollow rotary shaft provided rotatably in said defiberizing drum, a multitude of swing hammers provided swingably around said hollow rotary shaft both circumferentially and axially at respectively regular intervals, said swing hammers having edges formed of their top and facing said cylindrical teeth with a suitable clearance maintained between said edges and cylindrical teeth, air vents provided to the hollow rotary shaft for passing outer air from said shaft to the inside of said drum and a suction wire part for receiving and supporting the thin paper sheet to accumulate the fine stock thereon, said suction wire part being provided under said outlet part having holes opening above the thin paper sheet.
REFERENCES:
patent: 153172 (1874-07-01), Kirk et al.
patent: 2735807 (1956-02-01), Banker
patent: 3271215 (1966-09-01), Hoffman
patent: 3276928 (1966-10-01), Pearson et al.
patent: 3549093 (1970-12-01), Pallmann
patent: 3630458 (1971-12-01), Smiley
Oujevolk George B.
Spicer, Jr. Robert L.
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