Differentially Positioned Patents (Class 234/112)
  • Patent number: 4260102
    Abstract: An apparatus for punching of symbols into template material with a punching tool. The punching tool has punching pins selectable by corresponding selector means. An operating mechanism, after selection of the punching pins by the corresponding selector means presses the punching pins through the template material in a grid arrangement characteristic of each symbol to be punched into the template material. The punching tool has several parallel rows of punching pins, of different punch sizes for punching of symbols in different sizes of lettering and/or types of lettering. The selector means selects and operates the punching pins of only one punching row, in any desired combination for punching of symbols according to a straight-line dot grid.
    Type: Grant
    Filed: July 5, 1979
    Date of Patent: April 7, 1981
    Assignee: Sanried Fr. Sander & Riedmaier GmbH & Co.
    Inventor: Georg Thoma