| 摘要 |
<p>1346729 Tempering curved glass SAINTGOBAIN INDUSTRIES 20 June 1972 [2 July 1971] 28766/72 Heading C1M An apparatus for tempering curved glass sheets which includes curved rods 2, 3 of the type disclosed in Specification 1,134,775 further comprises a plurality of sets of nozzles 4, 5 for blowing cooling fluid on to the glass sheet, each nozzle set comprising several nozzles connected in an articulated chain between the frame means 22 on which the rods are mounted. Preferably each nozzle set comprises three nozzles, the control nozzles 5a being rigidly connected to a blowing chest 20 the two side nozzles 5b being connected thereto by flexible pipes 21. Each blowing chest is articulated to the frame 22 by cranks 23, 24 and is connected to a rotatable shaft 27 by a further crank 26 so that rotation of the shaft by means of hand wheel 29 imparts to the chest a rotational movement so that the nozzles take up a position corresponding to that of the rods. The nozzles 4, 5 of each set are connected to adjacent nozzles and to the frame 22 by means of universal joints. The ball of each joint connecting an end nozzle to the frame 22 is provided with equational grooves 45 which engage fingers 45a carried by a shaft 60 fixed to the frame 22 thereby preventing rotation about the axis of the shaft.</p> |
