Abstract: Apparatus for receiving a stack of case blank sheets from a source of supply and delivering the sheets in shingled arrangement, for further processing, by receiving the stack at a first level, elevating the stack intact vertically to a second level above the first level, where the stack is transferred to a feeder located at the second level for operation in association with a stripper to feed the sheets forward in shingled arrangement from the bottom of the stack, while stabilizing the stack against toppling backward during feeding of the sheets forward from the bottom of the stack.

Abstract: Method and apparatus wherein flat corrugated paperboard sheets in stacks are rearranged into a horizontally shingled array of the desired faced orientation and fed toward an exit in the apparatus, each stack being fed onto a conveyor, then tilted to a first posture wherein the sheets are not yet in the horizontally shingled array, but are supported with their edges resting on the conveyor and with their faces making an acute angle facing the exit, the sheets then being moved toward the exit while supported on their edges in the first posture, and then being dropped from the first posture into a second posture, wherein the sheets are in the shingled array, and into juxtaposition with shingled sheets of a previous stack on the conveyor for establishing a flow of continuously shingled sheets toward the exit.

Abstract: Method and apparatus wherein flat corrugated paperboard sheets in stacks are rearranged into a horizontally shingled array of the desired faced orientation and fed toward an exit in the apparatus, each stack being fed onto a conveyor, then tilted to a first posture wherein the sheets are not yet in the horizontally shingled array, but are supported with their edges resting on the conveyor and with their faces making an acute angle with the conveyor, the sheets then being moved toward the exit while supported on their edges in the first posture, and then being dropped from the first posture into a second posture, wherein the sheets are in the shingled array, and into juxtaposition with shingled sheets of a previous stack on the conveyor for establishing a flow of continuously shingled sheets toward the exit.

Abstract: Apparatus for feeding sheets such as flat, corrugated paperboard sheets used to be formed into packaging cases including an entrance end and an exit end, means for receiving a stack of horizontal sheets at the entrance end, a conveyor for receiving the stack of horizontal sheets, means associated with the conveyor for placing the stack of horizontal sheets in an orientation wherein the sheets rest on their edges such that they will be delivered at the exit end in the desired faced orientation, means for supporting the sheets in the edge resting orientation such that the face of the leading sheet and the bed of the conveyor form an acute angle facing the exit end of the apparatus, means for delivering the sheets horizontally in the desired faced orientation to the exit end of the apparatus.

Abstract: An apparatus receives case blanks in a given faced orientation within an upright stack and delivers the blanks in shingled arrangement in reverse faced orientation. Two forks are pivoted about a common pivotal axis and move independent of one another, in response to a control system, to upset the upright stack and establish the shingled arrangement and reverse faced orientation.