Elongated-member-driving apparatus – With means to move or guide member into driving position – Including supply magazine for constantly urged members
Patent
1982-09-28
1985-01-29
Bell, Paul A.
Elongated-member-driving apparatus
With means to move or guide member into driving position
Including supply magazine for constantly urged members
227120, B25C 502, B25C 511
Patent
active
044960913
ABSTRACT:
A stapler for binding sheets of papers by driving a stapler into stacked sheets of paper. The stapler has a base member provided with an anvil plate, a staple magazine member and a driving member provided with a staple drive plate. The base member, staple magazine member and the driving member are pivotally secured at their base ends to one another by means of a pivot pin. The stapler comprises a staple guide member mounted in the staple magazine member for sliding movement in forward and backward directions while leaving a staple drive clearance in the end of the staple magazine member. The stapler further comprises a staple feeder connected to the driving member and mounted in the staple guide member for sliding movement in the forward and backward directions, and a resilient member disposed around the pivot shaft, the resilient member being retained at its front bent end by the staple guide member and at its rear bent end by the staple magazine member.
REFERENCES:
patent: 2551898 (1951-05-01), Nyberg
patent: 3076195 (1963-02-01), Jopp
patent: 3516590 (1970-06-01), Timmerbeil et al.
patent: 4187971 (1980-02-01), Prew, Jr.
patent: 4243168 (1981-01-01), Balma
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