Patent GB-189905012-A (GB)
Title: Improvements in or in connection with Glass Working Apparatus.
Inventor: DYMOND GEORGE CECIL
Filed: 1899-03-07
Granted: 1899-06-24
Abstract: 5012. Dymond, G. C., [Colburn, I. W.]. March 7. Blowing, moulding, and shaping hollow-ware. Relates to a machine in which glass is blown within a rotating ring of slickers or shaping- fingers which knead or model it into shape, while opening outwards to allow of its expansion. The machine is mounted on wheels 38, 44, and can be driven in either direction by means of the electromotor 22. Pillars 3 support a top plate 2, which like the bottom plate constitutes a long and relatively narrow endless track on which run four or more carriages. On the lower track run an equal number of carriages 9, rigidly connected with the upper ones by vertical rods 78. The upper carriages carry the blow-heads which serve to supply air to and to rotate the blow-irons 81, while the lower ones carry the slickers 57 which shape the glass. Fig. 7 shows one of the slicker carriages in section. Between the rails 8 of the track on which it runs, is a cam-track 10 which, as the carriage advances along the track, causes the cone 58 to rise, forcing outwards the slides 63 which carry the slickers 57. The disc 55 which supports the slickers is rotated through the medium of a vertical shaft 86 driven by an electromotor 95 carried by the upper carriage. Fig. 12 shows one of the upper carriages in section. It is carried round the upper track by a cable 31 driven from the motor 22 through the medium of a vertical shaft 28. The cable passes over wheels 32, 33 at opposite ends of the machine, and another cable passes over similar pulleys 32<1>, 33<1> at a lower level on the same vertical shafts 27, 28. The lower cable carries tappets, which turn intermittently a star-wheel on the vertical shaft 116, at the upper end of which is mounted a box 118, with which communicate the flexible air-supply tubes 105 leading to the blow-heads. The electric conductors supplying power to the motors on the upper carriages pass through the flexible tubes, continuous contact between the fixed and rotating parts being obtained by means of slip rings and brushes in the box 121. Three cam-tracks 90, 91, 92, Fig. 12, are arranged on the upper plate 2, and operate levers on the upper carriage as it moves round the track. The cam-track 90 lifts the blow-head 93 to allow the removal of a blow-iron and the insertion of another ; the track 91 regulates the escape of air from the box 104 through the valve 113, and consequently the pressure supplied to the blowiron ; and the track 92 regulates the arm of a rheostat controlling the speed of the motor 95, which drives oppositely the blow-iron and slickers. The stop-valve 112 is operated by a star-wheel 129 and fixed pins 127, to admit air to the box 104 during the passage of the glass from one end of the machine to the other, and to cut off the supply during the return of the carriage, at which time the slickers have opened out, the finished article has been removed, and the lower carriage is passed through a housing 15, Fig. 1, so as to cool the slickers by a shower of water from the pipe 14. A pump 12 feeds the tank 13 which supplies this pipe. During the last part of the slicking operation, the glass is cooled by a jet of cold air directed upon it by a fixed nozzle at the side of the track.