by feeding material obliquely to the axis of the core

Full Title

Methods, apparatus, or devices for covering or wrapping cores by winding webs, tapes, or filamentary material, not otherwise provided for (forming hollow objects by winding filamentary material on to fusible or soluble cores ; wrapping for the purpose of packaging B65B11/00; making wound articles of paper B31C) > Covering or wrapping annular or like cores forming a closed or substantially closed figure > by feeding material obliquely to the axis of the core