Apparatus for manufacturing plaster sheets

Details Apparatus for manufacturing plaster sheets Apparatus for manufacturing plaster sheets

1975-03-26

1976-05-18

Lazarus, Richard B.

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

Female mold type means

264113, 425115, 425220, 425DIG12, 425DIG201, B28B 2302

Patent

active

039574075

ABSTRACT:
An apparatus is disclosed for the continuous manufacture of fiber reinforced plaster sheets which apparatus includes a conveyer for supporting a plurality of sheet casting moulds, a casting station for casting slurry into said moulds and a fiber station at which means are provided for depositing fiber for reinforcement across the surface of the casting slurry. The apparatus also includes a pair of rollers having radial extensions to force the fibers to or adjacent the lower surface of the cast slurry. A second fiber depositing means is also provided for depositing a second batch of reinforcing fibers across the surface of the slurry and a second pair of rollers having an open mesh surface are provided for forcing the second batch of fibers into the slurry to a level at or adjacent the upper surface thereof. The fibers used may be sisal or fiberglas as individual randomly oriented lengths, continuous meandering strands or a random mat deposited over the surface of the slurry.

REFERENCES:
patent: 3506755 (1970-04-01), Rudder et al.
patent: 3661662 (1972-05-01), Allen
patent: 3849156 (1974-11-01), Marlin et al.
patent: 3861982 (1975-01-01), Wilson et al.

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