Patents Assigned to Donisthorpe & Company Limited
  • Patent number: 5603460
    Abstract: A cone on which thread is wound has a central frangible section at which it may easily be broken. The thread forms a winding on the cone at each side of the section leaving a space where it crosses the section. The cone may be snapped in half to give two independent wound cone parts, each with approximately half the amount of thread. This allows the purchaser the flexibility to use the cone in various ways. In one embodiment, the cone parts may be urged axially together after the frangible section has been broken, to become removably attached to one another with a reduced space between the respective windings.
    Type: Grant
    Filed: January 27, 1995
    Date of Patent: February 18, 1997
    Assignee: Donisthorpe & Company Limited
    Inventor: Alexander Reid