Patent GB-472978-A (GB)
Title: An improved method and means for the manufacture and/or assembling of multiple part caps for bottles or other containers
IPC: B67B3/02
Filed: 1936-04-02
Abstract: 472,978. Capping bottles &c. MAREK, A. J., SMITH, A. H., and SCREETON, S. A. April 2, 1936, No. 9747. [Class 125 (ii)] In manufacturing or assembling caps for bottles or other containers of the kind comprising a number of cap parts nested one within the other and each having a depending skirt portion, the cap is manufactured either from plain or flat by turning the peripheral portions thereof individually around the outside of the container mouth or by successively assembling on said mouth blanks having completely preformed skirts. The machine comprises a turntable C, Figs. 1 and 2, and a central spindle B having a tubular member F concentric therewith and integral with the table C, the member F carrying a member G having four arms two of which carry rods H provided with capping heads I which apply the inner parts of the closures to the bottles, and two of which carry rods K having capping heads L which apply the outer parts. The rods H, K are moved vertically by an annular cam O and a plate O<1> engaging rollers M. Inner and outer caps are alternately fed from a magazine Q and are sucked by way of an aperture Q<2> into the heads I, L. Plates C<1>, C<2> respectively carrying levers C<3>, C' are mounted on the turntable C. A bottle is placed on the turntable at the station Z and against one of the levers C<3> and is carried round underneath a capping head I which has just passed over the magazine and received a cap therefrom. The arm H is depressed by the part P of the cam O and the head I is pushed on to the bottle mouth, the inner cap being forced into position thereon. Compressed air is admitted above the cap portion to retain it on the bottle as the head I rises. The bottle then moves into engagement with a lever R which holds it until the member C4 engages therewith and carries it past the lever R under a head L, which is depressed by the part P<1> to apply the outer cap. Compressed air is again applied to retain the cap and the capped bottle is fed out of the machine along a gangway S. A rod T, Fig. 6, having two passages U, U<1> is inserted into the upper end of the member F and is connected at U<2> and X respectively with the pressure and suction sides of an air pump. The capping heads I, L are connected to the nozzles F<1>, F2, Fig. 7. In a modification of the machine, two turntables 6, 7 are provided on spindles 4, 5, Figs. 9 and 10, plates 12 having bottle-supporting lugs 12a being secured thereon. An upwardly extending tubular body 14 is formed integral with each turn table and is connected by a pipe 16 to the suction or intake side of an air pump. Each member 14 supports a fourarmed spider 18 carrying rods 19 supporting the inner capping heads 32 and the outer capping heads 33, and bearing by rollers 20 against cams 21. The inner and outer caps are supplied from magazines 26, 27. The capping heads are connected to the bodies 14 by flexible tubes 29, the inner cap portions being applied while the bottles are on the turn table 6, and the outer cap portions being applied while on the turntable 7. The bottles are transferred from the table 6 to the table 7 by the combined action of the tables, a guide plate 34, and rotating arms 35a. The capping heads 32 are formed with a rubber lining 32, Fig. 14, while the capping heads 33 have an inner part 33a slidable therein, Fig. 16, and a rubber ring 33f compressible between metal rings 33d, 33e. The inner caps i are placed into position by the heads 32 and the outer caps o by the heads 33, and during the latter operation the ring 33f is compressed to bend the skirt portion of the outer cap round the bottle neck.