Abstract: A moulding machine for paper fibre articles has a mould (107, 1707) made from sintered particles. A measured shot of liquidised pulp is drawn through the mould using a piston (109, 1709) on the other side. The article is dried in situ with pressurised hot air. Large moulds may be fabricated by welding together sintered sections. A method of preparing the fibres is by liquidisation.

Abstract: A display apparatus has an interchangeable cassette including a first static image-bearing slatted panel and at least two further movable image-bearing slatted panels, movable relative to the static panel and interleaved therewith. The panels form part of the cassette in which any of the panels can be selectively removed and replaced. Additionally, the display apparatus includes a frame for receiving the cassette. The frame includes a drive system for selectively moving the movable panels to enable the slats on each of the movable panels to move from a position behind the slats of the static panel, to a position in front of the slats of the static panel, thereby enabling an image on the panels to be viewed.