Stop motion for winding and twisting machine

Claim 1

A MACHINE FOR TWISTING AND WINDING A STRAND OF YARN COMPRISING, A ROTATABLE SPINDLE FOR SUPPORTING A YARN SUPPLY, SAID SPINDLE HAVING A WHORL, DRIVE MEANS ENGAGEABLE BY SAID WHORL FOR ROTATING SAID WHORL AND SPINDLE TO IMPART TWIST IN A STRAND OF YARN DRAWN FROM SAID SUPPLY, A PIVOTALLY MOUNTED SUPPORT FOR SAID SPINDLE SWINGABLE TO SELECTIVELY ENGAGE SAID WHORL WITH SAID DRIVE MEANS AND TO DISENGAGE SAID WHORL THEREFROM; WINDING MEANS INCLUDING A PIVOTALLY MOUNTED PACKAGE SUPPORT ARM, A TAKEUP ROLL CARRIED ON SAID ARM, A DRIVE ROLL FOR ENGAGING AND ROTATING SAID TAKE-UP ROLL TO WIND YARN ON SAID TAKE-UP ROLL; RECIPROCABLE STOP MOTION MEANS OPERABLE IN THE ABSENCE OF YARN FLOWING FROM SAID SUPPLY TO SAID TAKE-UP ROLL TO PIVOT SAID ARM TO DISENGAGE SAID TAKE-UP ROLL FROM SAID DRIVE ROLL, MEANS FOR RECIPROCATING SAID STOP-MOTION MEANS, A LINKAGE CONNECTED WITH SAID YARN AND MOVABLE THEREWITH TO MOVE SAID WHORL OUT OF ENGAGEMENT WITH SAID DRIVE MEANS AS SAID ARM IS PIVOTED TO DISENGAGE SAID TAKEUP ROLL FROM SAID DRIVE ROLL, AND A STATIONARY BRAKE POSITIONED TO RECEIVE SAID WHORL UPON DISENGAGEMENT FROM SAID DRIVE MEANS TO ARREST ROTATION OF SAID SPINDLE.