Patent GB-190012456-A (GB)
Title: Improvements in Machines for Manufacturing Glass-ware.
Inventor: O'NEILL FRANK
IPC: B29C43/08
Filed: 1900-07-10
Granted: 1900-09-22
Abstract: 12,456. O'Neill, F. July 10. Blowing and moulding hollow-ware. Fig. 1 shows a front elevation, and Fig. 2 a side elevation, of the machine, both partly in section, and Fig. 3 a plan view of the mould-carrier, one half being shown in dotted lines so as to display the actuating-mechanism. The driving-shaft 3 actuates the crosshead by means of pitmen 7. The crosshead carries a depresser, which acts on the uppermost of a radially-arranged series of plungers 9 supported by a shaft 8, so as to force the opposite plunger into the molten glass in the press-mould 28. The shaft 8 is lifted clear of the press and neck moulds by vertical bars actuated by cams 4 on the driving- shaft 3. An intermittent rotary motion is given to the shaft 8, so as to bring the plungers 9 into use in turn. This is effected by means of a rack 12 sliding horizontally in guides on the machine frame and gearing with a pinion 11 on the shaft 8 when the latter is in its highest position. The rack is reciprocated by means of a pin 13 engaging in a slot in the pitman 7, and gives an intermittent and unidirectional movement to the pinion 11. The press-moulds 28 and blow-moulds 35 are arranged alternately round a table 14 rotatably mounted on a post 15. The table 14 is intermittently rotated by a reciprocating arm 16 linked to a crank 22 secured to the wrist-pin of the pitman 7. The arm 16 carries at its end a pair of spring-controlled latches 18, 19, Fig. 5, which engage with lugs 20 on the underside of the table 14. The latch 18 is the pushing-latch, the other serving to give the arm 16 a firm hold of the table, and being withdrawn by the action of a fixed plate 24 just prior to the return stroke of the arm 16. The carrier is locked in position during the operations of moulding and blowing, which take place simultaneously in adjacent moulds, by means of a catch 25, Figs. 2 and 3, which is actuated by a link 27 from the arm 16. The press-moulds 28 are revolubly mounted on shafts 30, which carry mutilated pinions 33 engaging with a mutilated rack on the periphery of a fixed plate 34. Articles formed wholly by pressing are discharged from the moulds when they are thus inverted. The blow-moulds 35 are made in two parts, hinged at 36. They are opened and closed by crossed levers 38, which are pivoted at 37 and are actuated by cam-grooves 42 in discs 41 mounted on vertical shafts which carry mutilated pinions 44. These pinions engage with a second mutilated rack on the plate 34, so as to open and close the blow-moulds at the required points. The two-part neck moulds 60 are carried by a plate 57 secured to a tubular shaft 56, within which is a shaft 49 carrying at its lower end a plate 54 having a cam-groove which serves to open and close the neck moulds. The shaft 49 is splined to an arm 69, which is oscillated by means of a lever 67. The shaft is also raised and lowered by means of an arm 50, roller 51, and cam 52, and in this movement it carries the tubular shaft 56 and plate 57 with it. The shaft 56 bears also a plate 65 having perforations with which a spring bolt 70 on the arm 69 is adapted to engage whenever the shafts are in the raised position. By this means a unidirectional intermittent movement is given to the neck moulds, which are thus enabled to lift the moulded parison from the press mould and transfer it to the blow-mould. The blowpipe 71 is suspended from a bracket 72 extending from the arm 50, and passes loosely through a guide 73 on the crosshead. The blowpipe valve 74 is controlled by a lever 75, which is pressed outwards as the crosshead descends. The end of the blowpipe is pressed firmly on the neck mould by a spring 76 during the blowing-operation. Jars, tumblers, and jelly glasses are mentioned among the articles which may be produced by the machine.