Tumbling hole punch and method for punching holes into a moving

Details Tumbling hole punch and method for punching holes into a moving Tumbling hole punch and method for punching holes into a moving

1987-04-02

1988-07-26

Yost, Frank T.

Cutting

Processes

During movement of work past flying cutter

83337, 83345, B26F 108

Patent

active

047592460

ABSTRACT:
A tumbling hole punch consists of a serrated tube plunging straight through a film web into a hole in a backup roll. The serrated punch is mounted to an arm which is geared to the backup roll so that the punch remains in register with the hole in the roll. In order to keep the axis of the serrated punch aligned with the axis of the hole in the roll, the punch pivots relative to its arm, and the pivoting is controlled by a gear belt drive so that as the arm rotates the punch tumbles in the opposite direction, keeping its axis parallel with the hole axis.

REFERENCES:
patent: 2760576 (1956-08-01), Spencer
patent: 2946380 (1960-07-01), Scribner
patent: 3147656 (1964-09-01), Kwitek
patent: 3290202 (1966-12-01), Pratt
patent: 3483780 (1969-12-01), Hudson
patent: 3550494 (1969-05-01), Adams et al.
patent: 3680419 (1972-08-01), Stoop
patent: 3728918 (1973-04-01), Helm
patent: 3747447 (1973-07-01), Wisner
patent: 4218944 (1980-08-01), Sclippa
patent: 4452114 (1984-06-01), Rynik
patent: 4480516 (1984-11-01), Leroy

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