B - Operations – Transporting – 63 – B
Patent
B - Operations, Transporting
63
B
18/1066
B63B 5/24 (2006.01) B29C 33/30 (2006.01)
Patent
CA 1115018
ABSTRACT OF THE DISCLOSURE The disclosure relates to a moulding apparatus for use in the formation of an open-top bowl-like shell whereof at least some of the surface is curved. The apparatus includes a flexible form layer adapted to be formed into a moulding face for the said shell, first template means having an edge cor- responding in shape to the desired shape of the shell rim bordering said curved surface, further template means having an edge or surface corresponding in shape to the desired shape of a contour or section of the shell at a location remote from the shell rim, and containment means adapted to form, together with the flexible form layer, a fluid tight container enclosing the said further template means. The container is adapted to be connected to means to vary the fluid pressure within the container so that the fluid pressure on the moulding face of said form layer is different from that on its opposite face to thereby urge said layer into a condi- tion of tensed stiffness in which condition the form layer directly bears against and is supported by the said further template means and the form layer assumes the shape required of the surface of the shell to be formed.
310564
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Western William J.t.
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