| 摘要 |
<p>724,880. Windows. VAESSEN, J. F. H. Aug. 31, 1953 [Sept. 6, 1952], No. 23960/53. Class 20( 3). Cames 1, 2 are made from strip H- or U- section thermoplastic plastic or synthetic resin, and are welded and soldered at the cross connections. Each side of glass pane 4 fits into a groove formed by flanges 3 or 7 and a web 5. To insert the ends of the flanges 3 of the transverse strips 2 between the flanges 7 of the longitudinal strip 1, wedge-shaped pieces are removed from the webs 5 of the transverse strips and their flanges are pressed together. The joint is then partially made by welding and completed by cementing with molten resin 8 and a solder 9 consisting mainly of sulphur with a little aluminium powder, graphite, zinc oxide and talcum powder. The plastic used is preferably bendable or admits of being bent, after moderate heating, into the shapes required, e.g. for a stained glass window.</p> |
