| 摘要 |
<p>In producing a receptacle a web of plastics material is moulded so that the web forms a receptacle with a liquid-tight side wall, and the formed receptacle is severed from the rest of the web by means of cooperating elements movable relatively to one another and simultaneously one or more apertures are formed in the base of the receptacle. A filter disc may be located within the receptacle. In the embodiment of Fig. 3, a sheet (9) is vacuum moulded in a mould (7) and the resultant article is severed from the sheet by a first blade (13) acting against a resilient counter (10). An aperture is simultaneously formed in the base of the article by a second blade (14) acting against a second counter. A filter disc is located over the aperture. In the embodiment of Fig. 7, each of a pair of vacuum moulds has a resilient cushion (24) in its base and the base of the freshly formed article is perforated by a member (12a, 12b) carrying pins (22) which is movable into the mould. <IMAGE></p> |
