Ring spinning frame with easily removed tubes from standing spindle - has spring grip on spindle to hold tube which is reinforced by centrifugal force when rotating

The spindle of a ring spinning frame carries a tube during the spinning process. In the spindle is a spring attachment to grip the tube. In addition, are pieces of a specific mass to project radially by centrifugal force when the spindle rotates, pressing (in)directly against the tube wall. Pref. the spindle (14) may have three bores introduced radially into the cross section (D) at intervals along the length. These have attachments (24) introduced, consisting of a spiral spring retained by a cap (26) which inserts in a groove and projects slightly from the surface of the spindle, with a rounded surface to enable the tube to slide on and off. The spring (28) has sufficient tension to hold the tube during loading. By deepening the bore to allow additional pieces (34, 36) of sufficient mass in cylindrical form to be inserted, then during acceleration the centrifugal force assists the spring and ensures the tube does not moves relative to the spindle. The efficiency is greatly increased. USE/ADVANTAGE - To increase the pressure and hence the grip on the tube when accelerating, running or slowing down, but to reduce the pressure on the tube at time of doffing. Tubes are easily removed from the standing spindle, as only a slight spring pressure is involved.