Patent GB-222214-A (GB)
Title: Improvements in or relating to machines for making glass bottles and the like
IPC: C03B9/18
Filed: 1923-06-28
Abstract: 222,214. Moorshead Glass Machine Co., Ltd., Moorshead, T. C., and Dorman, E. P. June 28, 1923. Blowing. - Relates to an automatic bottlemaking machine of the type in which the finishing moulds are adapted to revolve around a fixed centre with a constant velocity while the parison moulds revolve around the same centre with varying velocity, so as to change their relative positions. According to the present invention, the speed of rotation of the parison moulds is varied by means of a cam, each of the parison moulds is adapted to be locked automatically and in turn to a constantly rotating part of the machine, and the machine proper is adapted to be raised or lowered relatively to the glass feeder by mechanism which may be carried on an under-carriage. The mechanism for adjusting the height of the moulds consists of three screws D each of which is journaled in the lower end of a cylindrical guide C bolted to the upper surface of the undercarriage A. Spur wheels E, secured to extensions D' of the screws D, gear with a pinion F secured to a. shaft G, so that the screws are rotated when the shaft G is turned. Members M, which are adapted to slide in the guides C, are secured at their upper ends to the base ring N of the machine proper and each is provided with a nut 0 which engages an elevating screw D. The shaft G may be turned by means of a handle and thus the ring N may be raised or lowered. A stationary column P is secured on the base ring N and to this column are secured stationary cam rings Q, R. Mounted on the column are the gathering arms T which are supported by, and are free to revolve on, a revolving frame S. Distributing rings X, Y, Z mounted on the column, supply compressed air for blowing the bottles and provide means for applying suction to the ring moulds when the parison moulds 56 are being charged with metal. The column P is hollow and is provided with ports 2 which allow the passage of air for cooling the moulds and other parts of the machine. The frame S is provided at intervals on its upper surface with vertical pivot pins 5 on which cam levers 6 are mounted. The levers 6 have rolls which travel in tracks 7 on the stationary cam ring Q, and they are also formed with toothed segments 9, 10 one of each of which is secured to an arm T. Thus as the frame S rotates with a constant velocity, the arms T are moved with varying velocity by the levers 6, and the cam track 7 is so shaped that the upturned parison mould 56 remains stationary while receiving a charge of metal from the feeder. During the inverting of the parison mould and the blowing of the bottle, the arm T is locked to the frame S by a bolt 106 which is operated at proper intervals by a cam groove 16 in the ring Q. The finishing moulds 27 are of usual construction and each is mounted on a frame 24 that is pivoted at 23 to the revolving frame S. The mould frame is also supported by rollers 25 which run on a fixed track 26 that raises or lowers the mould to and from the parison mould. A cam slide, which carries a roll 29 engaging a track 30 on the fixed ring Q, opens and closes the halves of the mould.