Abstract: A yarn break detecting device for a spinning machine includes detectors, a feed section and a control section. The detectors each include a pair of electrodes having substantially the same area and adapted to electrically induce a potential depending on static electricity charged on a yarn, a differential amplifier, a waveform shaper and an indicator lamp. The induced potential is then amplified and rectified to turn on the indicator lamp and concurrently fed to a microprocessor in the control section for operation processing, resulting in positions at which yarn break occurs and the number of yarn breaks being indicated.

Abstract: A front yarn guide element (11) of the yarn stop motion (10) has the shape of a yarn guide eye (12) formed by a wire spiral into which a yarn can be introduced from the side and deflected to all sides without danger of slipping out. The yarn guide eye (12) is provided with a supporting part (17) located so as to be longitudinally movable in the housing (18) of the yarn stop motion (10), so that the spacing of the yarn guide eye (12) from the position (B) at which the yarn stop motion (10) is secured is adjustable.

Abstract: A specially designed pigtail balloon guide for use with ring spinning frames is provided. The guide improves the performance of such frames with respect to sliver breaks and/or sliver throughput. The guide has a single-looped coil through which the sliver is threaded. The coil is designed so that during operation of the frame the coil is tilted with respect to the path of the sliver.

Abstract: In order for the snail wire that is to be fitted on a ring-frame for detection of yarn breakage to sense sharply the intrinsical vibration resulting from its contact with yarn, the flat portion of the snail wire where the piezo-electric element is mounted is modified so as to sense the vibration more easily and furthermore, the piezo-electric element and connecting lead are covered and retained with elastic material for protection to thereby ensure the yarn breakage detecting snail wire which can be used stably throughout a long period.

Abstract: The thread guide arrangement for ring spinning and ring twisting machines comprises a thread guide lappet (6) and a wire-shaped thread guide eyelet (3), defining the thread balloon point, and mounted using a screw (13), which screw (13) is provided with an extension (13a) acting as a thread catching device, and which thus prevents the occurrence of multiple end breakages in a row. For easier removal of thread remnants, the extension (13a) can be smooth. The screw (13) furthermore is used for centerably mounting the thread guide eyelet (3) with respect to the spindle axis (a).

Abstract: A guide for a filamentary material, such as yarn, thread, rope or the like which comprises a coiled spring of spring steel having two extending ends on one of which is formed a pigtail to act as a guide and on the other of which is formed a hook for engaging the side containing the pigtail, thereby permitting the spring portion to be slid over a rod and the hook on the other side pressed to engage the first side thereby allowing the guide to be clamped onto the rod at any desired location and permitting ease of adjustment.