Device for punching hole in cards

Details Device for punching hole in cards Device for punching hole in cards

1985-05-29

1986-06-24

Yost, Frank T.

Selective cutting (e.g., punching)

With specific means to select a plurality of tools

Direct punching

234115, 234131, B26F 104

Patent

active

045963592

ABSTRACT:
A punching device for punching coded key cards and the like comprising a plurality of punches, each of which is selectively movable in respective guide. Balls of ferromagnetic material are positionable in a first punching position and a second passive position. Solenoids with movable cores are arranged to selectively move the balls between the first and second positions.

REFERENCES:
patent: 3022000 (1962-02-01), Millis
patent: 3073519 (1963-01-01), Booth
patent: 3542284 (1970-11-01), Meagher

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