Abstract: Apparatus for removing the bottom sheets from a stack of sheets or inserting sheets at the bottom of a stack of sheets including an air knife to provide an air cushion between the stack of sheets and the bottom sheet in the stack and a reversible drive roll mounted within a vacuum plenum for driving sheets beneath or away from the sheet stack.
Abstract: A microform card holder with set screws for adjusting the position of a card held thereby relative to the optical path of a microprinter, including an adjustable bar member with pins to hold a perforated card.