Abstract: The apparatus disclosed herein is designed to advance a row of aligned, on edge, sheets of corrugated, which are destined to become partitions, past a table-mounted notching saw. The apparatus is particularly suited to be used at the end of the run to advance all of the remaining corrugated sheets through the notching saw without manual assistance. A horizontally positioned, reciprocable slide member having pairs of pivotally mounted latches which serve to engage the last sheet and, upon actuation of the slide, draws the sheet and column of sheets in front thereof through the saw. One set of latches, upon reciprocation of the slide, moves the sheets to the saw or notching zone and upon further reciprocation the second set of latches will engage the sheets and draw them completely past the notching zone and free of the saw.