E - Fixed Constructions – 06 – B
Patent
E - Fixed Constructions
06
B
108/32
E06B 7/00 (2006.01) B01J 8/20 (2006.01) B01J 8/34 (2006.01) B01J 19/32 (2006.01)
Patent
CA 1183727
ABSTRACT OF THE DISCLOSURE A single foil is biaxially stretched on a frame for movement relative thereto by being secured intermittently to a single rubbing strip over a guide ledge. The rubbing strip is stretchable and movable lengthwise of the associated frame side. Torsional forces arising because of the one-sided loading of the frame by the stretched foil are taken up by the frame which is made with a torsionally rigid cross-section. The single foil can be clamped without creasing and in a manner which ensures freedom from creasing notwithstand- ing differences in the heat expansion of the foil and frame.
407138
Brader Kurt
Grether Paul
Keller Bruno
Fetherstonhaugh & Co.
Geilinger Ag
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