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Progressive Bursting

IP.com Disclosure Number: IPCOM000080625D
Original Publication Date: 1974-Jan-01
Included in the Prior Art Database: 2005-Feb-27
Document File: 2 page(s) / 59K

Publishing Venue

IBM

Related People

Bernard, LP: AUTHOR

Abstract

Progressive bursting of a continuous forms 10 is effected as shown in Figs. 1-3, in which Fig. 1 is a front view in vertical elevation, Fig. 2 is an end view and Fig. 3 is a top plan view. These views show feed rolls 12 and 14, a tapered bursting roll 16 and cooperating partial gripper or pinch rolls 18 for single-length documents and they may also be clutched for varied-length documents.

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Progressive Bursting

Progressive bursting of a continuous forms 10 is effected as shown in Figs. 1-3, in which Fig. 1 is a front view in vertical elevation, Fig. 2 is an end view and Fig. 3 is a top plan view.

These views show feed rolls 12 and 14, a tapered bursting roll 16 and cooperating partial gripper or pinch rolls 18 for single-length documents and they may also be clutched for varied-length documents.

The form is fed by the feed rolls 12 and 14 ahead of and following the tapered bursting roll 16. When the pinch rolls 18 are driven either continuously or clutched, the projecting portions 20 of the pinch rolls pinches the form against the tapered roll 16. As the larger diameter portion of the tapered roll 16 has a higher surface velocity the form is stressed at the larger end, and progressive bursting across the form is effected.

Fig. 4 illustrates a modification of the apparatus in which rubber gripper rolls 22 are mounted on a bellcrank 24, which is operated by a cam 26 (or solenoid) to bias the gripper rolls 22 against the tapered roll 16 for pinching the form to burst it.

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