Method and apparatus for aligning a pile of sheets provided with

Details Method and apparatus for aligning a pile of sheets provided with Method and apparatus for aligning a pile of sheets provided with

1983-05-16

1985-08-27

Bell, Paul A.

Bookbinding: process and apparatus

Process

Of edge fastening

140 924, 412 38, 412 39, B24B 508, B24B 510

Patent

active

045375453

ABSTRACT:
For aligning the binding perforations of a pile of sheets, straight prongs are inserted in the perforations and, during their withdrawal, are moved in non-positive manner in the direction of a curved shaped surface, so that the tip area of the prongs presses the back of the pile against the shaped surface and consequently the desired curved shape of the perforation is obtained.

REFERENCES:
patent: 4161196 (1979-07-01), Fabrig

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