Apparatus for stapling and creasing paper articles in transit

Details Apparatus for stapling and creasing paper articles in transit Apparatus for stapling and creasing paper articles in transit

1987-04-27

1988-12-20

Bell, Paul A.

Elongated-member-driving apparatus

Driving motion of driver has component in direction of...

227 88, 227 89, 227 92, 270 37, B42C 100

Patent

active

047920777

ABSTRACT:
A chain link type stapler operates in transit at about 45,000 items per minute to staple and crease printed paper products. Only two link chains are required and they have a common contiguous path for receiving and clasping the paper products for transit while being stapled by means of mating, stapler and anvil links. The stapler link operates to receive wire lengths, form staples therefrom, insert and clinch the staples over a cyclic path of the chain. This is achievable by means of a reciprocating wire clip assembly journalled in an internal cavity of the stapler link. Reciprocation is programmed by a cam arm extending externally from the clip assembly and stapler link on which roller means is mounted to ride in a cam track about the chain travel path. Thus, the reciprocating mechanism receives a length of wire, locks it in place, draws it internally into a die set formed by the reciprocating clip and link cavity to form the staple, ejects it into the paper product, clenches it, and releases the lock to let the staple drop out if a paper product is not in place.

REFERENCES:
patent: 510845 (1893-12-01), Crowell
patent: 1054043 (1913-02-01), Sheldon
patent: 3653570 (1972-04-01), Alsop
patent: 4204626 (1980-05-01), Kutzner et al.
patent: 4315588 (1982-02-01), Faltin

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