Sheet folding device

Details Sheet folding device Sheet folding device

1992-04-08

1993-07-13

Terrell, William E.

Manufacturing container or tube from paper; or other manufacturi

Bending

Folding

493405, 493451, B65H 4520, B65H 4504

Patent

active

052268721

ABSTRACT:
A folding device for folding a sheet of thin material, such as paper, comprises a first sheet holder for holding a first portion of the sheet, a second sheet holder for holding a second portion of the sheet, and a pivoted linkage connecting the first sheet holder to the second sheet holder in such a way as to allow relative movement between them. In use relative movement between the holders causes the sheet to be folded in opposite directions along two lines so as to form a zig-zag shape.

REFERENCES:
patent: 13543 (1855-09-01), Elliot
patent: 141742 (1873-08-01), Washburn
patent: 747085 (1903-12-01), Rieffel
patent: 1245421 (1917-11-01), Amberg
patent: 1809000 (1931-06-01), Stealy
patent: 3229974 (1966-01-01), Banks
patent: 3279784 (1966-10-01), Schwendinger
patent: 3481595 (1969-12-01), Stuart
patent: 3759507 (1973-09-01), Imbrecht
patent: 4265439 (1981-05-01), Sundberg
patent: 4597748 (1986-07-01), Wolf

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