Lever-operated push flap for manual punch

Details Lever-operated push flap for manual punch Lever-operated push flap for manual punch

1996-02-07

1998-07-14

Peterson, Kenneth E.

Cutting

Means to drive or to guide tool

With simple rectilinear reciprocating motion only

83633, 83687, B26F 102

Patent

active

057787506

ABSTRACT:
A manual sheet paper punch having an elongated pivotal flap which drives punch dies to punch sheets and, in addition, a pivotal lever positioned above the flap for hand operation to urge the elongated flap downwardly to punch sheets. Increased mechanical advantage is accomplished.

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patent: 4898055 (1990-02-01), Neilsen
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