| 摘要 |
733,144. Cartons; packaging. IMPERIAL. CHEMICAL INDUSTRIES, Ltd. Nov. 5, 1951 [Nov. 6, 1950; July 4, 1951], Nos. 27033/50 and 15836/51. Classes 18 and 94 (1). A lined carton is formed by making a continuous tube of lining material, securing it to carton blanks in succession, folding the carton blanks over .the tube and cutting the tube into lengths. The carton is of tubular form with three joined and one separate end closing flap 2, the joined flaps folding inwardly to nip the lining against the wall carrying the separate flaps, the nipped lining end 6 then being sealed and the separate flap 2 secured over it. Lines of weakening (not shown) may be provided at one corner to enable parts of the flaps to be torn open to form a pouring spout. Apparatus for .lining the carton receives the lining material 25 from a roll 21 and feeds it over rollers 23, 24, a glue wheel 31 applying adhesive to one margin and folders 32 folding it about a plate 29 to form a tube. The tube is applied to the carton blanks 17 which have previously received lines of glue from wheels 15, 16. Folders, not shown, fold the carton blank about the tube which is cut between the blanks to produce the collapsed carton ready for setting up. The apparatus may include means for breaking the carton blank creases, prior to application of the lining and means for applying transverse glue strips to the carton blank. Specification 651,711 is referred to. |
