Browse Prior Art Database

Vernierly Adjustable Throat for Document Card Hoppers

IP.com Disclosure Number: IPCOM000076139D
Original Publication Date: 1972-Jan-01
Included in the Prior Art Database: 2005-Feb-24
Document File: 2 page(s) / 37K

Publishing Venue

IBM

Related People

Reidenbach, JR: AUTHOR

Abstract

This adjustable throat provides a gap A between a fixed throat knife 10 and a movable throat ramp 12, the thickness of which may be adjusted in a vernier-like fashion by adjusting a set screw 14, so that there is just sufficient gap thickness between knife 10 and ramp 12 to allow a single document card 16 to pass therebetween.

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Vernierly Adjustable Throat for Document Card Hoppers

This adjustable throat provides a gap A between a fixed throat knife 10 and a movable throat ramp 12, the thickness of which may be adjusted in a vernier-like fashion by adjusting a set screw 14, so that there is just sufficient gap thickness between knife 10 and ramp 12 to allow a single document card 16 to pass therebetween.

The throat ramp 12 is fixed on the bottom surface 18 of a document card hopper 20, which also includes a back 22 and a front 24 on which knife 10 is attached. Ramp 12 is fixed on the bottom 18 by screw 25 and includes a weakened section 12a and a relatively thick front section 12b, providing an upwardly extending ramp surface 12c. Rolls 26 extend through openings 28 in the bottom 18 of hopper 20. Rolls 26 are rotatable in the direction shown and are movable on their axis upwardly so as to protrude through openings 28, for the purpose of moving a document card 16 through the gap A between knife 10 and throat ramp 12.

Screw 14 extends through the thickened forward section 12b of ramp 12 and bears on the bottom surface 18 of hopper 20. Advancing set screw 14 causes throat ramp 12 to move upwardly to narrow gap A and retracting set screw 14 causes gap A to widen; and this movement of throat ramp 12 is about weakened section 12a.

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