Conveyor structure

Claim 1

IN A CONVEYOR FOR FEEDING DOCUMENTS, AN ELONGATED CHANNEL FORMED OF SOFT ERODABLE METAL SUCH AS ALUMINUM AND COMPRISING A PAIR OF LATERALLY SPACED SIDE PORTIONS FOR ENGAGING AND SUPPORTING A DOCUMENT THEREBETWEEN, SAID CHANNEL HAVING AN INTERMEDIATE PORTION FLANKED BY SAID SIDE PORTIONS, SAID INTERMEDIATE PORTION HAVING A BOTTOM AND UPRIGHT SIDES DEFINING AN UPWARDLY OPEN GUIDEWAY, GUIDE MEANS ON SAID SIDE PORTIONS SPACED ABOVE SAID BOTTOM OF THE INTERMEDIATE PORTION, A HARD METAL LINER GENERALLY U-SHAPED IN CROSS-SECTION HAVING A BOTTOM SECTION OVERLYING THE BOTTOM OF SAID INTERMEDIATE PORTION AND HAVING UPRIGHT SIDE WALLS DISPOSED BETWEEN SAID SIDES OF SAID INTERMEDIATE PORTION, AT LEAST PORTIONS OF SAID SIDE WALLS BEING DISPOSED IN VERTICALLY OVERLAPPED RELATION AND INTERLOCKED WITH THE GUIDE MEANS AGAINST SEPARATION IN AT LEAST ONE VERTICAL DIRECTION, SAID GUIDE MEANS EXTENDING LATERALLY WITH RESPECT TO SAID SIDE WALLS, AND A RUBBERIZED FABRIC BELT SUPPORTED ON SAID LINER, SAID BELT AND LINER HAVING VERTICAL EDGES ELONGATED LENGTHWISE OF THE BELT AND ENGAGEABLE WITH EACH OTHER FOR GUIDING THE BELT OUT OF CONTACT WITH THE METAL SIDE PORTION OF THE CHANNEL TO PREVENT PRODUCTION OF SOOT PARTICLES THROUGH ABRASION BETWEEN THE BELT AND THE CHANNEL, SAID LINER AND CHANNEL BEING DISPOSED IN MUTUALLY SUPPORTING RELATION, SAID LINER PROVIDING A RELATIVELY LOW COEFFICIENT OF FRICTION FOR THE BELT TO ACCOMMODATE SLIDING THEREOF THEREUPON WHEREBY INHIBITING THE DEVELOPMENT OF STATIC ELECTRICAL CHARGES ON THE BELT AND ATTRACTION THEREBY OF SAID SOOT PARTICLES.