Patent GB-190311214-A (GB)
Title: Improvements in and relating to Machines for the Manufacture of Glass Bottles, and the like.
Inventor: LEISTNER CARL
Filed: 1903-05-16
Granted: 1904-08-16
Abstract: 11,214. Leistner, C. May 16. Blowing and moulding bottles &c.-Relates to machines of the Leistner type, in which, by employing a double neck mould, a parison is formed in the parison mould simultaneously with the finishing of a bottle in the finishing-mould. In the present invention, the parison and finishing moulds are placed out of alignment, and two neck moulds are employed, which, by a rotary motion, can be moved from the parison mould to the finishing-mould, and vice versÔ, respectively. In the arrangement shown in Fig. 1, the combined halves of the parison and finishing moulds v, f are carried on two swinging arms 6, and are opened and closed by the gearing 8, 9, 10, &c. The neck moulds k, k<1> are mounted on the forked ends 917 of two arms 910, which are pivoted on the revoluble bracket 911 carried by the boss 912 on the pivoting bolt 5 of the arms 6. The neck moulds are adapted to be opened by the levers 919 against the action of the springs 920, stops 918, 921 being provided to limit the movements of the neck moulds and the arms 910. The plunger 58 is mounted concentrically with the bore of the mouth-forming nipple 591, in an extension 411 of the bracket 41 carrying the bottom mould b, and is operated by the slotted hand-lever 412. The neck moulds may be provided with a shoulder or seat, against which the plungers or nipples abut when introduced, and which may also serve to open the air-valve for the admission of air to the parison when in position in the finishing-mould. The air-valve may be provided on a hollow arm carried in hollow trunnions on the frame, the arm being counterpoised &c. so that it is raised out of operative position when released ; or, a separate air-valve 926 mounted on a lever 924 may be employed. The valve 926 is provided with a cover 925 for connection with a hose &c., and is opened when pressed down on the nipple 591. The other details of construction &c. are similar to those described in Specification No. 16,652, A.D. 1901, while a combined bottom mould and marvering - block provided with operating mechanism, such as is described in Specification No. 8948, A.D. 1902, may be employed. In a modification, the movement of the neck moulds with respect to the parison moulds is effected by an arm on the bolt 5. In the form shown in Fig. 4, the neck moulds k, k<1> are mounted in guides b, and are shifted automatically on the rotation of the disc a, by the cam c acting through the connections o, n, m. According to the Provisional Specification, the movement of the neck moulds may also be effected by a lever arm connected to the neck moulds by links, and actuated through suitable connections by foot or hand power. In the arrangement shown in Fig. 6, a double set f, f<1> of parison and finishing moulds are hinged on the revoluble disc c, the neck moulds k, k<1> being mounted in guides b, between the two sets. In another arrangement, a plurality of parison moulds are superposed over a corresponding number of finishing-moulds, with the same number of neck moulds between. The parison and finishing moulds may all be carried by one pair of swinging arms,