Punching machine for cards or paper bands to be used for the con

Details Punching machine for cards or paper bands to be used for the con Punching machine for cards or paper bands to be used for the con

1974-10-10

1976-03-16

Meister, J. M.

Selective cutting (e.g., punching)

With specific means to select a single tool

Interposer

234 85, G06K 108, D03C 1700

Patent

active

039441342

ABSTRACT:
A punching machine for the cards or paper bands used in jacquards, dobbies and the like, comprises horizontal punches individually actuated by pusher means through presser rods which may be selectively brought to an ineffective oblique position. Each presser rod is attached to a needle itself attached by its upper end to a vertical rod. All these vertical rods are alternately raised and permitted to return downwardly so as to reciprocate in front of individual electromagnets which are selectively energized to retain some of the said vertical rods at their raised position. The vertical rods are disposed in successive longitudinal rows and the electromagnets are arranged in corresponding superposed horizontal elongated banks, the vertical rods of each row terminating upwardly short of the next bank of electromagnets in order not to interfere with them. The electromagnets are of the U-shaped type with the poles one above the other at a quite short distance from the rods, in order that each rod may be attracted and retained frictionally by its corresponding electromagnet.

REFERENCES:
patent: 2552942 (1951-05-01), Dalle
patent: 2741312 (1956-04-01), Johnson
patent: 2745494 (1956-05-01), Boettcher
patent: 3090550 (1963-05-01), Servillat
patent: 3516601 (1970-06-01), Behrens

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