Abstract: Disclosed is an apparatus for the preparation of pulp moulded plate. The apparatus includes a press and a three-piece mould including an upper die (1), a surrounding frame (2) and a lower die (3), wherein one of the dies is a moving die and the other is a fixed die, and lower die is always within the press, and moves in relation to the upper and lower dies. The apparatus also includes a rigid matrix and a flexible punch with a retractable die bar, which are installed respectively on the upper die and lower die, so as to prepare a heterotypic pulp-moulded plate with a convex part. Also disclosed is a pulp moulded plate prepared by this preparation apparatus.

Abstract: A paper making apparatus includes a mould having a mesh screen and a deckle of comparable size. The deckle includes a shaped inner edge for directing pulp onto the screen. The mould and deckle are held together and dipped in a vat having a pulp and water slurry to form a sheet of paper. The mould and deckle are constructed of materials that will not warp, crack, twist, or otherwise deform from repeated use in water. The mould also includes structural ribs to hold its shape. An alternative embodiment of the invention includes a mould having a mesh screen and structural support ribs and a deckle box having a shaped inner lip and a sealing means attached to the lip. The combination of mould and deckle box may be dipped in water and does not require the presence of a vat having a pulp stock. Pulp may be poured into the mould and deckle box assembly. The mould and deckle box are constructed of materials that will not warp, crack, twist, or otherwise deform under normal use in water.

Abstract: A paper making apparatus is adapted to receive a mixture of liquid and paper fiber on a fiber retaining screen surface operable to drain excess water from the fiber and through the screen, during the formation of a discrete fiber web on the surface. The improvement herein comprises a basin which defines confines for normally retaining the liquids thereby received therein, and has a bottom with generally upwardly extending side walls including a generally horizontally extending ledge adapted to receive the screen in supported relation thereon. The ledge is generally surrounded by a screen positioning wall for locatingly positioning the screen in supported relation on the ledge in draining register above the confines of the basin. The screen positioning wall includes an at least one longitudinally extending opening therein adapted to provide generally open lateral access for grasping an adjacent screen edge in aid of the removal thereof from its supported relation on the basin.