Patent GB-191012-A (GB)
Title: Improvements in or in connection with machinery for the manufacture of glass bottlesand other blown glassware
IPC: C03B9/24
Filed: 1922-12-07
Abstract: 191,012. Wilzin Automatic Bottle Making Machine Co., Ltd., (Assignees of Soc. Anon. d'Etudes et de Constructions d'Appareils MÚcaniques pour la Verrerie). Dec. 30, 1921, [Convention date]. Blowing. - A machine for blowing glassware, particularly bottles, has means for filling the parison mould by suction and means for connecting the suction apparatus with the joint formed by and between the contacting faces of the sections of the parison mould. The machine comprises a parison mould 18, Fig. 1, formed in two parts which open and close about a spindle 25, a ring mould 60 to support the parison without movement during the substitution of the finishing mould 19 for the parison mould, and a controller 12 for regulating the suction and for the supply of compressed air for blowing. The frame of the machine consists of a table 1 and two standards 2 joined by a crosspiece 3. The mould supports are secured to the standards, the height being adjustable by nuts 20, and an eccentric sleeve surrounding each. standard enables each mould to be adjusted horizontally in relation to the axis of the ring mould. A shaft 4, mounted on the table, has a double arm 6 which opens valves 7, 8, 9 when the shaft is rocked by pedals 16, 16a and puts the controller and a cylinder 14 in communication with the suction pump or the supply of compressed air. The controller 12 consists of a casing containing a disc perforated with a ring of holes of different diameters, one of the holes being brought into coincidence with a supply pipe when the plate is rotated, the size of the hole regulating the suction or compression which is applied to the ring mould. V-shaped members 29, pivoted on the table and connected to the mould by links, enable the operator to open or close the moulds. The ring mould 60, Fig. 7, is mounted below the cylinder 14 the interior of which is connected to the valve 9 by a pipe 13 and to the controller by a pipe 46. Passages 38, regulated by cocks 39, connect the interior of the cylinder with ducts 64 formed in the ring mould and with grooves 68 formed in the contacting faces of the ports of the parison mould. Thus when suction is applied to the cylinder, air is exhausted from the grooves 68 and tight contact is secured between the halves of the parison mould, so that joint marks on the parison are avoided. The plunger 43 that forms the initial cavity in the neck of the parison is mounted in the lower end of a rod 42 which slides through a piston 48 pressed upwards by a spring 49. In operation, the ring and parison moulds are closed and a ladle full of metal is placed over the lower end of the parison mould. Suction is then applied to the cylinder 14 and causes the piston 48 to move downwards to bring the plunger 43 into the ring mould. Movement of the controller then exhausts air from the ring mould through the pipe 46, thus causing the metal to be sucked from the ladle into the mould. After removal of the ladle, the controller and the pedals are operated to stop the suction, the parison mould is opened, and the finishing mould 19 and the bottom mould 74 are moved to enclose the parison. Further operation of the pedals and the controller admits compressed air to the ring mould to blow the parison to the final shape.