Device for securing a spindle rotor to bearing means

Claim 1

IN A TEXTILE MACHINE COMPRISING A NON-ROTATABLE BEARING ASSEMBLY AND A ROTATABLE SPINDLE ASSEMBLY SUPPORTED THEREAT, ONE OF SAID TWO AWSEMBLIES COMPRISING THE INNER ONE AND THE OTHER COMPRISING THE OUTER ONE OF A PAIR OF COAXIAL MEMBERS HAVING MUTUALLY FACING CIRCUMFERENTIAL SURFACES AND AXIALLY DISPLACEABLE IN RELATION TO EACH OTHER, MEANS FOR PREVENTING UNINTENDED AXIAL SEPARATION OF THE SAID TWO ASSEMBLIES, WHICH COMPRISES AN ANNULAR RIDGE IN EACH OF THE SAID MUTUALLY FACING CIRCUMFERENTIAL SURFACES OF THE SAID COAXIAL MEMBERS, AN ANNULAR GROOVE IN EACH OF THE SAID SURFACES AT THE REAR OF THE RESPECTIVE ANNULAR RIDGE, A RING OF RESILIENT MATERIAL INTERPOSED BETWEEN THE SAID SURFACES OF THE COAXIAL MEMBERS AND SIMULTANEOUSLY ENGAGING THE SAID ANNULAR GROOVES IN THE SAID SURFACES OF BOTH OF THE SAID MEMBERS, THE FORWARD SURFACE OF THE SAID RIDGE OF ONE OF THE SAID MEMBERS FORMING A SMALLER ANGLE WITH THE AXIS OF THAT MEMBER THAN THE REARWARD SURFACE OF THAT RIDGE FORWARDLY BOUNDING THE ANNULAR GROOVE OF THE SAID ONE MEMBER AND THE SURFACE REARWARDLY BOUNDING THE ANNULAR GROOVE OF THE OTHER OF THE SAID MEMBERS FORMING A GREATER ANGLE WITH THE AXIS OF THE SAID OTHER MEMBER THAN THE SURFACE FORWARDLY BOUNDING THAT ANNULAR GROOVE OF THE SAID OTHER MEMBER, WHEREBY THE AXIAL FORCE REQUIRED FOR CAUSING THE SAID RING WHEN LODGED IN THE LAST MENTIONED ANNULAR GROOVE OF THE SAID OTHER MEMBER TO PASS OVER THE SAID RIDGE OF THE SAID ONE MEMBER AND INTO THE SAID ANNULAR GROOVE THEREOF ON AXIAL DISPLACEMENT OF THE SAID MEMBERS INTO EACH OTHER IS SMALLER THAN THE FORCE REQUIRED FOR CAUSING THE SAID RING TO PASS FROM THE SAID ANNULAR GROOVE OF THE SAID ONE MEMBER OVER THE SAID RIDGE THEREOF ON AXIAL DISPLACEMENT OF THE SAID MEMBERS OUT OF EACH OTHER.