Patent GB-190009645-A (GB)
Title: A Machine for Making Hollow Glassware.
Inventor: PYLE GEORGE CUSTIS
Filed: 1900-05-25
Granted: 1900-08-18
Abstract: 9645. Pyle, G. C. May 25. Blowing; moulding. - Relates to a machine for blowing and moulding glass jars and other hollow - ware which is wholly operated by the gatherer. A series of six receiving moulds 44, arranged in a circle on a spider 43, Fig. 3, over a series of six blowing-moulds 114, carried by a spider 110, Fig. 5, and arranged in a circle which comes into vertical alignment with the circle of receiving-moulds at one point, Figs. 1 and 3, are rotated at a sixth of a revolution at each operation of the machine, and during the intervals the gatherer charges a receiving-mould with glass. The glass is then pressed, blown, and removed in three successive positions of the blowing-moulds, which cool down during the remaining three stages of circular travel, Fig. 1. The operation is started by depressing a rod (not shown) at the side of the machine. A link 50 connected with this rod and a bell crank 51 cause two knives 54 and 56 to close and sever a charge of glass, which then falls into the receiver beneath. The connection 60 between the knives is such that the lower blade 56 is arrested over the middle of the receiver, and the glass is thereby prevented from being thrown to one side of the receiver. The motion of the starting-rod, through a rod 62, lever 63, shaft 64, arm 67, trip rod 68, and bar 73, also causes a clutch 6 to throw the machine into gear with the driving-wheel 2. The spiders 110 and 43 carrying the moulds are thus given one-sixth of a revolution, and a cam 15 is given one revolution, during which it oscillates a lever 77 and a lever 22, and thereby actuates in due order the various trains of mechanism which effect the following operations. When the receiving-mould 44, charged with glass, has been brought under the corresponding outer mould 114, it is raised by a toggle 87, link 86, and sliding block 81 actuated by the lever 77, up into the outer mould, Fig. 5, and at the same time the corresponding internal former 142 is lowered into the receiving- mould in consequence of the rod 144 which runs on a truck 146 coming to a gap through which it is lowered by a sliding piece actuated by a bell crank 159, 151 engaging the sliding block 81, Fig. 5. Thereupon compressed air is admitted below the piston 94 in the cylinder 89, and the false bottom 92 is thereby forced up and presses the glass about the internal former 142 to form the neck of the article and the threads upon it. The former 142 and the receiving-mould are now respectively raised and lowered out of the outer mould 114 by reversal of the previous operations, and the bottom 120 of the outer mould is closed as the moulds are carried through another one-sixth of a revolution. The upper mould being now in the blowing position, Fig. 1, a cap 176, Fig. 3, is brought down upon the mouth by a rod 177 operated from the lever 77 by a lever 181, and compressed air is introduced into the mould by a pipe 187 from a valve 188, which is opened by the lever 181 depressing the valve stem 194. The blowing process finishes the article, and the moulds are next moved through another sixth of a revolution. Thereupon, the roller 125 on the yoke 122 riding up the incline 126, Figs. 1 and 3, the yoke is disengaged from the lugs 124 on the mould. The two halves of the mould, which are hinged together, are then opened, Fig. 1, by a lug 140 on one half engaging a stop 141, the two halves being connected by arms 132 so as to be moved in the same manner. Mechanism is described for holding the article in position while the mould is being opened. Finally, the article is removed by a crane 192, Fig. 3. This is swung into position by levers 198, 197, 22, and the cam 15, and it is lowered to bring the spring catches 200 within the mouth of the article, by the motion of the sliding block 81 permitting the lever 195 to drop, and with it the stem 193 of the crane. The crane is afterwards swung back, carrying the article clear of the mould by reverse action of the levers described above. Means are described for locking the gearwheel 30 of the mould-driving train at the end of each one-sixth revolution.