Patents Assigned to Terrell Tool and Die Corporation
  • Patent number: 4121808
    Abstract: A drilling attachment for a numerically controlled flame cutting apparatus of the type having a plurality of flame cutting assemblies mounted in spaced relation in a plane for controlled lateral movement along a horizontally translationally movable beam for cutting intricate patterns from a sheet metal workpiece, which comprises a mounting member adapted to be secured to the beam for controlled lateral movement therealong in a manner similar to the flame cutting assemblies, a support plate carried by the mounting member and vertically movable relative thereto, a motor for moving the support plate vertically between a drilling position near the surface of the workpiece and a storage position remote from the workpiece, at least one drill motor secured to the support plate for movement therewith and for rotatably driving a cutting head to drill a hole in the workpiece, at least one drill feed rate control mechanism associated with the drill motor for controlling advancement of the cutting head into the workpiece
    Type: Grant
    Filed: July 25, 1977
    Date of Patent: October 24, 1978
    Assignee: Terrell Tool and Die Corporation
    Inventor: Jerry F. Cardea