Cutting – With work immobilizer – Work-stop abutment
Patent
1985-10-15
1987-08-25
Schran, Donald R.
Cutting
With work immobilizer
Work-stop abutment
83549, 83618, 83633, 83697, B26F 102
Patent
active
046884572
ABSTRACT:
A double duty paper punch for punching selected combinations of holes in up to fifty sheets of paper comprises a die-cast base with a steel die plate of angle cross section seated on the base with a downwardly projecting flange received in a recess in the base. An elongate punch holder, also a die casting, has a rear portion seated on a rear portion of the die plate and a forward portion spaced upwardly from the die plate to receive the paper to be punched. Rivets through aligned holes in the punch holder, die plate and base secure these parts together. The punch holder has a plurality of punch-receiving bores aligned with holes in the punch plate and base selectively to receive individual punches, each having a stem and a head with a spring acting between the head and the punch holder to hold the punch in raised portion. A punch actuator pivotally connected to the base is also a die casting with a rear portion overlying the punch holder and a spaced parallel handle portion overlying a forward portion of the base. A steel cam rod nested between ribs on the underside of the punch actuator is engageable with heads of punches positioned in the punch holder to force the punches down through the paper to be punched when the handle position is pressed down.
REFERENCES:
patent: 1687758 (1928-10-01), Glaeser
patent: 2102292 (1937-12-01), St. Louis et al.
patent: 2373121 (1945-04-01), Kipp
patent: 3176570 (1965-04-01), Gaya
patent: 4036088 (1977-07-01), Ruskin
Davi Richard A.
Neilsen Hildaur L.
Burns Robert E.
Lobato Emmanuel J.
Rolodex Corporation
Schran Donald R.
Wolfe James L.
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