Slotted take-up package tube for open-end spinning machines

An improved yarn take-up tube comprising a hollow cylindrical casing having first and second shoulder members extending outwardly from at least one end of said tube, each of said first and second shoulder members extending around a predetermined portion of the circumference of the end of said tube and being spaced apart so as to define two elongated slots therebetween, wherein said slots are angled so as to converge toward one another as they extend inwardly from the end of said tube along the length thereof, said slots being spaced apart about the circumference of said tube, said slots being of a sufficient width so as to define a relatively straight passageway through said first and second shoulder members.

A method of replacing a fully wound yarn package by an empty take-up tube in an open end spinning machine including the steps of simultaneously severing yarn flowing from the spinning unit to the fully wound package and diverting the yarn to a collection device, simultaneously inserting the yarn running between the spinning unit and the collection device within a pair of converging slots provided on one end of the empty take-up tube, removing the fully wound take-up package and creeling the empty take-up tube so that yarn continues to move between the spinning unit and the collection device through the passageway formed by the pair of converging slots and thereafter simultaneously initiating rotation of the empty take-up tube and severing the running yarn adjacent the collection device so that the initial rotations of the empty take-up tube will wrap the yarn extending between the slots and collection device around the tube adjacent the end of the tube provided with the pair of converging slots.