| 摘要 |
1,138,527. Packaging in flexible tubes. COLODENSE Ltd. 5 Dec., 1966 [11 Dec., 1965], No. 52727/65. Heading B8C. [Also in Division F2] The guide 3 (Fig. 1) about which a web 16 is tubed with its edges overlapping, can be turned about a vertical axis to alter the position of the overlap in relation to the plane in which the tube is subsequently flattened by welding heads 14. A structure 5 rotating with the forming guide 3 about a bearing 6 also carries the web supply 17 and a glue-strip applicator 8, which may, however, be omitted where the longitudinal seal is to be made by a heat-sealing head 13. In the machine illustrated the tube is drawn downwardly by the welding heads 14 and is fed with sweets 26 through a feed tube 1. The sachets 27 may be closed by rupturable seals as in Specification 956,506, and a strip of tacky adhesive may be provided for resealing them.
|
