Tool comprising assembling mandrel for screwing a hose nipple into a hose socket already surrounding a hose end

Claim 1

A TOOL, FOR USE IN CONNECTION WITH A THIN-WALLED HOSE NIPPLE HAVING ON ITS INTERIOR FINE AXIAL SPLINES THROUGHOUT ITS LENGTH AND CIRCUMFERENCE AND ARRANGED FOR THREADING ENGAGEMENT INTO A HOSE SOCKET SURROUNDING THE HOSE END, COMPRISING A MANDREL ADAPTED TO PROJECT THROUGH THE HOSE NIPPLE AND HAVING EXTERNAL FINE AXIAL SPLINES ADAPTED TO FIT INTO AND TO ENGAGE THE INTERNAL SPLINES OF THE NIPPLE, AND APPLICATOR MEANS CONNECTED TO SAID MANDREL AND RELEASABLY OPERABLE FOR IMPARTING TORQUE AND AXIAL MOVEMENT IN ONE DIRECTION TO SAID MANDREL AND THEREBY TO SAID NIPPLE TO ENGAGE THE NIPPLE IN THE SOCKET AND, RESPECTIVELY, PROPELLING THE MANDREL AXIALLY IN THE OPPOSITE DIRECTION TO WITHDRAW THE MANDREL FROM THE NIPPLE EMPLACED IN THE SOCKET, SAID APPLICATOR MEANS COMPRISING A SCREW MEMBER DISPOSED AXIALLY OF AND RELEASABLY SECURED TO SAID MANDREL AND BEING MOVABLE THEREWITH AND HAVING AN EXTERNAL SCREW THREAD, A NUT ENGAGING SAID EXTERNAL SCREW THREAD, AND A STOP ELEMENT RETRACTABLY ACTIVATABLE TO A POSITION ACROSS SAID SCREW MEMBER AND SAID NUT FOR TIED ROTATION OF SAID NUT AND SCREW MEMBER WHEN SAID NUT IS TURNED, SAID SCREW MEMBER HAVING A FRONT FACE, SAID NUT INCLUDING A PROJECTION HAVING AN INTERNAL SURFACE DISPOSED IN THE PATH OF SAID FACE, WHEREBY THE AXIAL MOVEMENT OF THE MANDREL DURING TORQUE IMPARTING WILL BE LIMITED FORWARDLY BY THE INTERENGAGEMENT OF SAID FACE WITH SAID SURFACE AND, RESPECTIVELY, REARWARDLY BY SAID STOP ELEMENT, SAID STOP ELEMENT BEING RETRACTABLE FOR CLEARING THE PATH OF THE SCREW MEMBER FOR THE WITHDRAWAL OF THE MANDREL.