Tape punch machine
AssigneeExtel Corporation
InventorsGerhard Cless, Edward L. Kaplan
Life of this patent
Estimating the term…
Abstract
A tape punch machine in which, to assure accurate and reliable tape movement, a stepping motor for feeding the tape receives two pulses for each spacing increment of the tape. The punches are selected by interposers which are not released if the same punch function is to be repeated in successive cycles of the machine.
Claims8
In a cyclically operable tape punch machine, punches selectable for operation, means to operate the selected punches, interposer slides moveable between a retracted and actuated position for selecting the punches, means including an electromagnetic means operable by an operating voltage of predetermined value to move an interposer from restored to actuated position in a cycle of the machine when its punch is to be operated and means to apply a reduced holding voltage to the electromagnetic means merely to hold an interposer in actuated position when that interposer is to be active in a cycle following the cycle in which it was actuated.
A cyclically operable tape punch machine for punching a tape in accordance with command signals and comprising:
- a plurality of punch elements arranged in a die block for advancing and restoring movement;
- a reciprocal driver bar having apertures receiving the shanks of the punch elements, said driver bar having a slot intersecting said apertures, said punch elements being supported to have the shank ends thereof exposed to the slot;
- interposers movable from a restored to an actuated position for selecting the punch elements and having the selector ends thereof disposed at the entry to said slot in the restored position;
- voltage-response interposer actuating means for actuating the interposers to move the end of an actuated interposer into the slot to support a punch element for movement with the driver bar;
- and interposer control means, included in the interposer actuating means, applying a holding voltage for maintaining each interposer that has been actuated during one cycle of the machine in its actuated position through the next cycle whenever its function is to be repeated in said next cycle.
Dependencies are inferred from the claim text.