Patents Assigned to Barmag Barmer Machinenfabrik AG
  • Patent number: 4304975
    Abstract: An improved means for mounting the induction coil of an inductively heated, rotatable godet about the magnetic core thereof so as to prevent internal overheating and preferably also to avoid any movement or play between the core and the coil as caused by heat expansion and vibration during operation of the godet. The improvement comprises cooling means for cooling the laminated pack acting as the magnetic core and for thermally isolating the pack from the coil and outer godet shell or casing, said cooling means including at least one hose-like tube wound around the laminated pack with means to conduct a fluid coolant therethrough. An elastic intermediate member is preferably introduced at some point between the coil and magnetic core in order to compensate for any unequal thermal expansion of these elements in the axial and/or radial directions.
    Type: Grant
    Filed: December 21, 1979
    Date of Patent: December 8, 1981
    Assignee: Barmag Barmer Machinenfabrik AG
    Inventors: Erich Lenk, Karl Bauer