| 摘要 |
<p>1491764 Thermal insulation plate UNIROYAL AG 27 March 1975 [29 April 1974 (2)] 15554/76 Divided out of 1491763 Heading B5A An apertured insulation unit 18 is disposed between a transfer moulding unit 10 and mould cavity 50 and includes an aperture 20 having a divergent portion 28 to compensate for slight misalignment with the corresponding sprue plate aperture 48 of the mould. The aperture may be lined with p.t.f.e. (Fig. 3), may have a cylindrical portion 32 and an upper divergent portion 34, 34A. The unit 18 may comprise a metal reinforcing plate 26, an insulation plate of asbestos/resin 18 and a liner 24 of asbestos/resin. The unit 18 may be provided with a blind recess for collection of gas during moulding (Fig. 4).</p> |
