Buckle chute folder with clamp

Details Buckle chute folder with clamp Buckle chute folder with clamp

1986-07-11

1987-10-20

Olszewski, Robert P.

Manufacturing container or tube from paper; or other manufacturi

Control means energized in response to activator stimulated...

Responsive to work material, the product or means engaging...

493 23, 493420, B65H 4514

Patent

active

047011556

ABSTRACT:
A folder suitable for automatically folding successive sheets of paper, such as engineering drawings, by conveying them into a folder pocket to various distances depending upon where the fold is to be formed. To arrest the sheet at the proper position in the pocket, a photosensor senses when the leading edge of the sheet has reached a reference position in the pocket and, when the sheet has advanced further to the desired position, a solenoid-operated clamp is actuated to move transversely into the pocket and clamp the sheet momentarily in the desired position while the fold is being made. The amount by which the sheet advances beyond the reference position is controlled by producing an electrical pulse each time the sheet conveyor moves a predetermined amount, and counting these pulses to cause the clamp to be actuated when a count corresponding to the desired fold position has been accumulated.

REFERENCES:
patent: 2857827 (1958-10-01), Labombarde
patent: 3211448 (1965-10-01), Stoothoff
patent: 3363897 (1968-01-01), Northern et al.
patent: 3493226 (1970-02-01), Weir
patent: 3797820 (1974-03-01), McDermott
patent: 3856293 (1974-12-01), Boyer
patent: 3899166 (1975-08-01), Behn
patent: 4061326 (1977-12-01), Proudman

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