Foreign Art Collections for winding bobbins of the universal or Fiji type--all machines, therefore, having means for imparting an incremental or rotary movement to the cop or ball at the end of each thread traverse movement or sufficient delay in the traverse movement of the thread guide so that the coils of one layer shall be laid just outside and parallel with the corresponding coils of the layer last wound, crossing the same and binding the coils and the loop at the ends firmly down, thus preventing the cop from breaking down and making it self-supporting. In the product the layers are symmetrical, each having the same number of coils and each coil being outside of rather than on top of the corresponding coil below it or in the last layer.
