Binder device releasably engaging aperture or notch of sheet – Sheet retainer with releasable keeper – Keeper including apertured or recessed sheet retainer...
Patent
1974-11-27
1976-03-30
Gelak, Bernard A.
Binder device releasably engaging aperture or notch of sheet
Sheet retainer with releasable keeper
Keeper including apertured or recessed sheet retainer...
402 60, 24 673, 24248PC, B42F 100
Patent
active
039471381
ABSTRACT:
A clamping fixture detachably mountable on an easel, or wall, mounted upright, support board hanging a heavy stack of large paper sheets against the front face of the support board so that the stack may be readily removed or rearranged, or the sheets torn off one-by-one. The fixture comprises a back support member, a top clamp housing member, and a blade member. The blade member and the clamp housing are pivotally connected to each other so as to move in unison when the clamp housing is pivoted about the back support member for inserting or removing a stack of papers. The blade member also acts as a clamping member and is tensioned for automatically adapting to the thickness of the sheets or pads of paper and means are provided for quickly and automatically permitting the fixture to open and then snap lock automatically in closed position, making the insertion and removal of display sheets or pads an effortless task.
REFERENCES:
patent: 776247 (1904-11-01), Krone
patent: 1668912 (1928-05-01), Keays et al.
patent: 2985174 (1961-05-01), Guth
patent: 3105495 (1963-10-01), Heyer
patent: 3312513 (1967-04-01), Barker
Gelak Bernard A.
Greigg Edwin E.
Oravisual Company, Inc.
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