Process and apparatus for feeding cementitious slurry for fiber-reinforced structural cement panels

摘要: A head-box for depositing slurry upon a moving web including main metering roll, companion roll disposed in closely spaced relation to the and vibrating gate which forms nip between roller gate. The is arranged retain supply of slurry, rolls are driven so retained progresses over an upper outer peripheral surface be deposited web. Also, preferably included doctor blade operational relationship directing downwardly from point above carrier fiberglass layer deposited. may pivotally mounted either side surfaces head-box.