Patents Assigned to B. J. Mackie & Co. (Aust.) Pty. Ltd.
  • Patent number: 5383380
    Abstract: A machine for cutting slices from a cylindrical workpiece such as a log of pressure sensitive tape. The machine has a machine frame and a mandrel on the frame for holding and rotating the cylindrical workpiece. A disc shaped cutting blade is mounted on a carriage and is movable to cut the workpiece into material slices. The carriage is movable to shift the cutting blade to locations along the mandrel at which the workpiece is cut into slices. A drive mechanism is connected to the carriage assembly for moving the carriage assembly along the mandrel. That drive mechanism has a drive handle which can be manually gripped to disengage a drive rack and pinion and so enable movement of the carriage assembly in either direction along the mandrel. A one-way clutch mechanism connects the handle to the pinion so that rotation of the handle in alternate directions incrementally moves the carriage assembly in one direction only along the mandrel.
    Type: Grant
    Filed: January 22, 1993
    Date of Patent: January 24, 1995
    Assignee: B. J. Mackie and Co. (Aust.)Pty. Ltd.
    Inventor: Maurice Sartori
  • Patent number: 4748881
    Abstract: A machine for cutting slices from a cylinder of material. The machine has a machine frame with a holding assembly thereon for holding a cylinder of material for cutting and rotating the material cylinder about a central longitudinal axis. A disc shaped rotatable cutting blade is carried by the carriage assembly and drive means rotates the cutting blade. A carriage assembly is mounted on the frame for movement to present the rotating cutting blade to the rotating material cylinder for cutting the cylinder transversely into material slices. A brake mechanism is actuable to positively brake gripping chuck rotation upon cessation of the gripping chuck drive means operation. Moreover, a separate brake mechanism is operable to positively brake cutting blade rotation upon cessation of the cutting blade drive means operation. This braking prevents free running of the gripping chuck, material cylinder and cutting blade.
    Type: Grant
    Filed: March 30, 1987
    Date of Patent: June 7, 1988
    Assignee: B. J. Mackie & Co. (Aust.) Pty. Ltd.
    Inventor: Brian T. Keeling