Bookbinding: process and apparatus – Apparatus – Edge binding apparatus
Patent
1993-09-08
1995-05-30
Hughes, Tom
Bookbinding: process and apparatus
Apparatus
Edge binding apparatus
412 14, B42B 900
Patent
active
054196680
ABSTRACT:
A binding machine for opening a multi-ring plastic binding element to install a stack of pages thereon, providing an improved adjustment mechanism to set the opening dimension of the rings corresponding to the stack of pages to be bound as well as the particular sized binding element to be used. The adjustment device provides a stop ring mounted coaxially around a rocker shaft which upon rotation imparts sliding movement to longitudinally arranged fingers which engage with and open the binder element rings, the stop ring rotationally adjustable with respect to the rocker shaft and arranged to interfere with a stationary stop of the apparatus upon preselected rotation of the rocker shaft.
REFERENCES:
patent: 2820975 (1958-01-01), Ruck et al.
patent: 2945246 (1960-07-01), Duncan et al.
patent: 3125887 (1964-03-01), Bouvier et al.
patent: 3227023 (1966-01-01), Bouvier
patent: 3967336 (1976-07-01), Cutter
patent: 4645399 (1987-02-01), Scharer
patent: 5211522 (1993-05-01), Ho
General Binding Corporation
Hughes Tom
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