Electric punch

Details Electric punch Electric punch

1984-08-16

1986-04-01

Meister, James M.

Cutting

Operation controlled by detector means responsive to work

With plural work-sensing means

83372, 83551, 83575, 83588, B26D 508

Patent

active

045790299

ABSTRACT:
An electric punch wherein lower blades each are formed in the bottom part of each insertion concavity into which sheets of paper being punched are inserted sideways, and a plurality of elevatable upper blades are formed, each upper blade being lowered into the corresponding lower blade by a solenoid excited in sequence.

REFERENCES:
patent: 2327646 (1943-08-01), Hutchinson
patent: 3182905 (1965-05-01), Rabinow
patent: 3427914 (1969-02-01), Staats
patent: 4421000 (1983-12-01), Murphy

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