Winding machine

In a winding machine the combination including:

• a traversing thread guide of substantially flat triangular shape, said guide extending into the thread traversal plane from one side thereof, being mounted for rectilinear reciprocating movement only, along a path parallel to said plane, having a thread-guiding slot opening into the thread traversal plane and two external side faces slanted towards the mouth of said slot, one of said slanted side faces being shorter than the other;
• an auxiliary thread guide for lifting the thread out of said slot to form a reserve zone axially adjacent to the bobbin being wound, said auxiliary thread guide having an arm extending into the thread traversal plane from the opposite side thereof, and
• means for moving said auxiliary thread guide, along a path extending on said opposite side at least partially parallel to the path of the traversing thread guide, into the thread reserve zone at a speed lower than the reciprocating speed of said traversing thread guide;
• said arm of the auxiliary thread guide, with its free end, pointing at an acute angle in the direction of the thread reserve zone to provide a correspondingly slanted rear face, a correspondingly slanted front face and a recess at the root of said front face, said rear face being shaped so as to retain the thread in the slot of said traversing thread guide when the traversing thread guide, moving in the direction of said thread reserve zone, overtakes said auxiliary thread guide from the rear, and said front face being shaped so as to lift the thread out of said slot and capture it in said recess when the traversing thread guide, moving in the direction away from said thread reserve zone, passes said auxiliary thread guide from in front, and said retaining of the thread in the slot and lifting of the thread out of the slot being aided by the greater and lesser length, respectively, of said two side faces of said traversing thread guide.