Patent Publication Number: US-3880635-A

Title: Method and apparatus for press bending glass sheets

Description:
United States Patent Jack et al.  
 [ 51 Apr. 29, 1975 METHOD AND APPARATUS FOR PRESS BENDING GLASS SHEETS 1n ventors: Harry Ross Scarlett J ack,  
 Tanworth-in-Arden; Peter Henry Richards, Kenilworth, both of England Assignee: Triplex Safety Glass Company Limited, London, England Filed: Mar. 12, 1974 Appl. No.: 450.459  
 Foreign Application Priority Data July 20. 1973 United Kingdom 34703/73 July 20. l973 United Kingdom 34704/73 US. Cl. 65/106; 65/104; 65/273; 65/275 Int. Cl. C031) 23/02; C03b 27/00 Field of Search 65/104, 106, H4, 116. 65/273, 275  
 [56] References Cited UNITED STATES PATENTS 2.442242 5/1948 Lewis 65/104 X 3,630,706 l2/l97l Carson et al v 65/104 3.701.266 10/1972 Chisholm 1 65/104 X 3,782,) l6 1/1974 Powell et al. 65/104 Primary Exzuniner-Arthur O. Kellogg Attorney, Agent, or FirmBums, Doane, Swecker &amp; Mathis [57] ABSTRACT A glass sheet is bent by heating the sheet while supported on its lower edge in a near-vertical disposition, closing dies on to the hot sheet at a bending station, and then tilting the dies to bring the sheet to a vertical position before the dies are opened and the sheet is removed vertically for subsequent annealing or toughening, for example by quenching the hot bent glass sheet in a chilling liquid.  
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