Abstract: An improved apparatus for removing the top sheet from a stack of sheets and transporting it to a predetermined location includes a vacuum head for displacing and separating the sheet from the stack, a drive arrangement including a threaded shaft supporting the vacuum head for transporting the sheet to the predetermined location and control circuitry for regulating the cyclical operation of the apparatus.

Abstract: This machine tool is utilized for cutting super alloys. The tool is associated with a source of cryogenic coolant which is routed internally through the tool. The coolant is discharged from the tool at a precise angle such that the stream of the coolant at the interface between the tool cutting edge and the workpiece is such that the chip cutting from the piece does not interfere with the coolant stream. The coolant passage is insulated to prevent boiling of the coolant until it reaches the cutting edge to obtain maximum heat dissipation.