Removable center spindle for bobbin holder in yarn dyeing vessel

摘要

The center spindle (1) is attached to the bottom (14) of the vessel by bolts (21) that lock into recesses in the flange (13). When the bobbin holder is raised by the lifting attachment (8), a sleeve (3) moves upwards and provides clearances (25) into which the spring loaded bolts (21) withdraw, thereby releasing the spindle (1).