C - Chemistry – Metallurgy – 03 – C
Patent
C - Chemistry, Metallurgy
03
C
26/184
C03C 27/08 (2006.01) B21D 53/74 (2006.01) E06B 3/673 (2006.01)
Patent
CA 1134125
ABSTRACT In order to facilitate the manufacture of glazing panels each comprising a pair of glazing sheets separated by an intervening marginal spacer frame formed of strip material and marginally secured between the sheets, the invention provides apparatus comprising a frame forming mechanism (shown generally in Figure 2) which includes guide means (w.g. mounted on rails 12, 13) defining at least two paths for feeding required lengths of strip material 15, stop means 19, 24 defining a position for the leading ends of the strip material as it is fed and a plurality of bending stations 17, 18, 21, 22 arranged to bend the strip material 15 to form frame corner angles at required distances from the stop means 19, 24. Means (not shown) is also provided for joining the ends of the spacer strip material 15, e.g. in overlap zones 31, 32 after the material has been bent to form the frame. optional cutting means 20, 23 are provided for cutting the strip material to length e.g. when it has been fed from a continuous stock 14. Profiling rollers 16 may be provided to import a channel form to the strip. Preferably rails 12 and 13 are arranged for relative approach and separation and at least bending stations 18, 22 and end stop 19 cutting means 20 are movable along the rails for the formation of different sizes of frame. In an alternative aspect of the invention (not shown in Figure 2) a conveyor runs beneath the or any other frame forming mechanism so that a frame formed there can be transferred directly onto a sheet carried by the conveyor. The invention extends to methods of manu- facturing glazing panels by forming a spacer frame and to methods including the direct transfer of a frame to a sheet.
328520
Janssens Theo
Willems Victor
Bfg Glassgroup
Swabey Ogilvy Renault
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