Spool-holding device for textile machines, particularly winding machines

Claim 1

A YARN-SPOOL JOURNALLING FRAME FOR YARN-WINDING AND OTHER TEXTILE MACHINES, COMPRISING A FRAME STRUCTURE PROVIDED WITH TWO LEGS IN FIXED RELATION RELATIVE TO EACH OTHER, TWO COAXIALLY ALIGNED AND MUTUALLY SPACED CLAMPING MEMBERS MOUNTED ON THE RESPECTIVE LEGS OF SAID FRAME STRUCTURE AND HAVING RESPECTIVE DOWEL PORTIONS FACING EACH OTHER FOR JOURNALLING ENGAGEMENT WITH A SPOOL CORE AT A PREDETERMINED DISTANCE FROM EACH OTHER, AT LEAST ONE OF SAID CLAMPING MEMBERS BEING AXIALLY DISPLACEABLE RELATIVE TO SAID FRAME STRUCTURE BETWEEN A CORE-CLAMPING AND A CORE-RELEASING POSITION, SAID DOWEL PORTIONS BEING RELATIVELY SHORT IN RELATION TO SAID PREDETERMINED DISTANCE SO THAT DISPLACEMENT OF SAID ONE CLAMPING MEMBER INTO SAID CORE-RELEASING POSITION CAUSES SAID SPOOL TO DROP DOWN FROM BETWEEN SAID DOWEL PORTIONS AND OUT OF SAID FRAME, SPRING MEANS BIASING SAID DISPLACEABLE MEMBER TOWARD SAID OTHER MEMBER, ARRESTING MEANS ENGAGEABLE WITH SAID DISPLACEABLE MEMBER FOR SECURING IT IN SAID TWO POSITIONS RESPECTIVELY, A CONTROL DEVICE CONNECTED WITH SAID DISPLACEABLE MEMBER AND MOVABLE BETWEEN TWO CONTROL POSITIONS FOR CAUSING SAID ARRESTING MEANS TO ARREST SAID DISPLACEABLE MEMBER IN ONE AND THE OTHER MEMBER POSITIONS DEPENDING UPON THE CONTROL POSITION OCCUPIED BY SAID CONTROL DEVICE, AND MEANS FORMING PART OF SAID CONTROL DEVICE FOR IMPARTING AXIAL MOTION TO SAID DISPLACEABLE MEMBER DUE TO MOTION OF SAID CONTROL DEVICE BETWEEN SAID TWO CONTROL POSITIONS.