Machine for automatically forming hard folders for bindery

Details Machine for automatically forming hard folders for bindery Machine for automatically forming hard folders for bindery

1994-09-09

1995-12-26

Engel, James

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With bending, folding, winding, or wrapping means

156475, 1564771, 156487, 156556, 412 27, B32B 304

Patent

active

054784310

ABSTRACT:
Machine for automatically forming hard folders for bindery, comprising:--means for individually feeding the folder's two mirror-sections and central backbone matched to the respective lining sheet--means for pressing each paired elements thus fed;--means for horizontally moving each pair thus pressed;--means for beating the first and then the second trasverse rim projecting from the lining sheet onto the trasverse edge of the corresponding cardboard mirror-section;--means for moving backwards the angular portion of each trasverse rim being beaten and protruding out of the corresponding cardboard mirror-section;--means for beating the protruding longitudinal rims of the lining sheet onto the corresponding sides of the cardboard mirror-sections and backbone;--means for pressing the said pair with the thus beaten rims of the lining sheet. (FIG. 1).

REFERENCES:
patent: 3804694 (1974-04-01), Blair
patent: 4160687 (1979-07-01), Spear
patent: 4248657 (1981-02-01), Henry

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