Continuous feeder

A circular stack sheet feeder comprising a lower loading tray upon which stacks of sheets having a sheet-by-sheet arrangement can be loaded, a conveying and reversing device for transporting the sheets from said loading tray onto a discharge tray in an inverted disposition, said device including a rotatable reversing cylinder having upper and lower sides, means for conveying sheets in a first direction toward the lower side of said cylinder, around said cylinder to the upper side thereof and then in a second direction onto said discharge tray, said means for conveying in said second direction including at least one flexibly stretched conveyer belt which extends over said discharge tray and which is adapted to assume an inclination, at least in the region of said discharge tray, which deviates from the horizontal as a function of the size and weight of the stack of sheets disposed thereon, separating means for drawing off the upper sheet of the stack disposed on said discharge tray, means for automatically adjusting the inclination of said conveyer belt so that the upper sheet of the stack disposed on said discharge tray will always be maintained in substantially horizontal plane thereby facilitating withdrawal by said separating means, first and second rollers extending transversely to said conveyer belt and defining a sheet removal zone therebetween in said discharge tray, said first roller being disposed above said belt and adapted to bear upon the upper sheet in said stack and said second roller being supportingly disposed below said belt, and wherein said means for automatically adjusting the inclination of said conveyer belt includes means for varying the distance between said first and second rollers.