Slurry feed apparatus for fiber-reinforced structural cementitious panel production

A feed apparatus for use in depositing a slurry upon a moving web having a direction of travel, comprising:

• a main metering roll;
• a companion roll disposed in closely spaced relation to said metering roll to form a nip therebetween, said rolls being disposed generally transversely to the direction of travel of the web;
• said nip constructed and arranged to retain a supply of the slurry;
• a thickness control roll disposed in operational relationship to said metering roll for controlling thickness of a layer of slurry drawn from said nip upon an outer surface of said metering roll;
• and
• means for driving said metering roll, said companion roll and said thickness control roll in the same direction.

A feed apparatus for use in depositing a slurry upon a moving web having a direction of travel, comprising:

• a main metering roll;
• a companion roll disposed in closely spaced relation to said metering roll to form a nip therebetween, said rolls being disposed generally transversely to the direction of travel of the web;
• said nip constructed and arranged to retain a supply of the slurry;
• a pair of sidewalls located adjacent ends of said metering and companion rolls to form a slurry reservoir;
• a thickness control roll disposed in operational relationship to said metering roll for controlling thickness of a layer of slurry drawn from said nip upon an outer surface of said metering roll;
• means for driving said rolls in the same direction so that slurry retained in said nip progresses over an upper outer peripheral surface of said metering roll to be deposited upon the web;
• and
• a reciprocating slurry delivery mechanism for providing slurry to said reservoir.