Arrangements for effecting positive rotation of packages

Full Title

Unwinding or paying-out filamentary material; Supporting, storing or transporting packages from which filamentary material is to be withdrawn or paid-out (winding B65H54/00; bobbins, tubes or other cores for packages B65H75/00) > Methods or apparatus in which packages rotate (supports or holders, for storing and repeatedly paying-out and rewinding lengths of material provided for particular purposes B65H75/34) > Arrangements for effecting positive rotation of packages