| 摘要 |
<p>1,039,189. Moulded pulp boxes. DIAMOND NATIONAL CORPORATION. Aug. 21, 1964 [Oct. 31, 1963; Feb. 5, 1964], No. 34330/64. Heading B8P. [Also in Division B5] A series of foraminous moulds are passed through one or more pulp slurries, each mould being provided with facial areas which are independently operable to cause vacuum deposition. To make a dish having a relatively thick central portion 44 vacuum is applied initially to a central chamber 26, Fig. 1 (not shown), and then also to a peripheral chamber 30 of each mould 12. In a second embodiment, Fig. 4 (not shown), the arrangement is such that an article having a thickened peripheral portion may be formed.</p> |
