| 摘要 |
<p>The device comprises a support (1) and a cross-piece (3) enclosing at least one vertically opening conforming mould (20) and one vertically opening finishing mould (30). The lower part (20a) of the conforming mould (20) and the lower mould-die (28) of the finishing mould (30) are carried by the pistons (14,15) of two vertical jacks. The upper part (20b) of the conforming mould is displaceable, by means of a jack (23-24), so as to come between the two mould-dies (28,29) of the finishing mould (30), the upper mould-die of which is fixed to the cross-piece (3). The part (20b) of the mould (20) comprises means for retension and expulsion of the preform established in the said mould. <IMAGE></p> |
