Retaining and stretching element for a film supporting framework

Details Retaining and stretching element for a film supporting framework Retaining and stretching element for a film supporting framework

1979-12-06

1982-02-23

Dorner, Kenneth

Buckles, buttons, clasps, etc.

Combined diverse multipart fasteners

Clasp

160392, A44B 2100

Patent

active

043163084

ABSTRACT:
A film retaining and tensioning element is provided in which the film passes between a pair of facing channel members adapted to be embedded one within the other and having complementary sinuous profiles whereby the inner channel pivots on the outer during assembly and progressively pinches and stretches the film. As tension on the film increases the locking effect further increases.

REFERENCES:
patent: 1758720 (1930-05-01), Sodergren
patent: 2897889 (1959-08-01), Kessler
patent: 3961661 (1976-06-01), Tombu
patent: 3987835 (1976-10-01), Bloomfield

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