Abstract: A broken end piecing up apparatus for ring spinning frames having a servicing assembly propelled along the spinning frame. This servicing assembly comprises a pressurized housing which contains the mechanisms. An optical scanner is provided for detecting the absence of yarn on the corresponding bobbin and provision is made for positioning the apparatus in front of the spindle where the absence of yarn has been detected. The apparatus has a mechanism which then stops the broken end spindle and rotates it in the unwinding direction, withdrawing and picking up this broken end from the bobbin. Then a predetermined length of yarn is pulled out from this bobbin and fed through the corresponding ring traveller. The broken end is cut, combed and fed to the roving issuing from the drafting systems and the piecing up operation of both takes place. Then the servicing assembly moves on to detect a further absence of yarn.

Abstract: Apparatus for automatic creeling in ring spinning frames, constituted by a frame capable of patrolling along a ring spinning frame, in inspection service to detect missing rovings, and is provided with an upwardly movable operative body and a supply of full roving packages to cover the needs and comprises also in combination:(a) structure for detecting missing roving;(b) creeling structure for releasing the exhausted bobbin or roving with broken strand;(c) structure for retaining the end of a new roving;(d) structure for gripping the new roving end and passing it around the spinning frame roving rods and delivering it to the drafting system; and(e) structure for replacing the roving sliver loading device.