Manual binding punch for scrap recyclable sheet material

Binder device releasably engaging aperture or notch of sheet – Sheet retainer with separate aperture making device

Patent

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Details

402 7, 402 8, 83687, 83691, B42F 300, B26F 114

Patent

active

055360963

ABSTRACT:
Disclosed is a manual binding punch for scrap newspapers, cardboard, and similar recyclable sheet material for shearing a pair of holes through a stack of sheets whereby a plurality of stacks may be bound together with cotton cord to form a bundle. The manual binding punch comprises a punch apparatus having a fixed base portion with a die plate having a pair of spaced apart die apertures integrally formed thereon. A cantilevered lever arm has a pair of end punches for cooperative engagement with the die apertures, a return spring whereby the lever arm and end punches are urged away from the die plate, and a pressure plate whereby sheets being punched are held stationary during punching. The lever arm is pivotable between an open position wherein a stack of sheets may be positioned between the end punches and the die plate and a closed position wherein the pressure plates contact the stack to hold the sheets stationary while the end punches shear a pair of holes therethrough.

REFERENCES:
patent: 485102 (1892-10-01), Grantland
patent: 2200672 (1940-05-01), Kern
patent: 3001270 (1961-09-01), Friedman

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