A COTTON CLOGGING-PREVENTIVE DEVICE FOR CONTINUOUS RINGLESS SPINNING MACHINES. THE DEVICE HAS A ROTARY SPINNING CHAMBER HAVING A FIBER COLLECTING SURFACE AND OPERATING UNDER SUBATMOSPHERIC PRESSURE. ROTARY TRANSFER BODIES FOR TRANSFERRING FIBERS ARE DISPOSED BETWEEN SAID ROTARY SPINNING CHAMBER AND THE FIBER FEED PART INCLUDING A COLLECTOR, AND A CASING SURROUNDS SAID ROTARY TRANSFER BODIES AND HAS AN AIR INLET CHANNEL DIRECTED TO THE SPINNING CHAMBER. BETWEEN SAID ROTARY TRANSFER BODIES AND THE CASING WALL THERE IS PROVIDED IN THE CASING WALL AN AIR INLET HOLE FOR ADMITTING AIR FROM THE OUTSIDE.