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Controlled Skew Feed Roll Shaft

IP.com Disclosure Number: IPCOM000086328D
Original Publication Date: 1976-Aug-01
Included in the Prior Art Database: 2005-Mar-03
Document File: 2 page(s) / 68K

Publishing Venue

IBM

Related People

Cole, NF: AUTHOR [+2]

Abstract

Fig. 1 illustrates an apparatus and method of providing a document self-aligning feature for a printing machine intended for use on passbooks or similar relatively thick media, as well as thin and relatively flimsy media such as paper forms. For passbook printer applications, it is necessary to align the passbook 1 along one edge 2 of the printer input throat or channel, so that the final printing which is placed in the passbook will be correctly aligned and so that, in the event magnetic stripes or other types of indicia are to be sensed or scanned as the passbook feeds into the printer or out, the indicia to be sensed will be correctly located.

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Controlled Skew Feed Roll Shaft

Fig. 1 illustrates an apparatus and method of providing a document self- aligning feature for a printing machine intended for use on passbooks or similar relatively thick media, as well as thin and relatively flimsy media such as paper forms. For passbook printer applications, it is necessary to align the passbook 1 along one edge 2 of the printer input throat or channel, so that the final printing which is placed in the passbook will be correctly aligned and so that, in the event magnetic stripes or other types of indicia are to be sensed or scanned as the passbook feeds into the printer or out, the indicia to be sensed will be correctly located.

In order to achieve an aligning function, the input feed roll shaft 3 mounted in bearings 4 between the edges of the input throat 5 has two types of feed rollers on it. One type of feed roller is the skew roll 6, several of which are shown. The other type is a straight cylindrical roller 7, two of which are shown.

Figs. 2A and 2B illustrate the operation of a single skew roller 6. In Fig. 2A, the undeflected skew roll is shown schematically counted on the center line of a support shaft 3 as in Fig. 1. In Fig. 3B, the same roll 6 has been deflected by the insertion of a passbook 1 between the pinch roller 6 and the skew roll 6. The deflection occurs because of the thickness T of passbook 1 and results in a lateral thrust or force to the left, as illustrated, because of the dished or cupped...