position such as that shown in fig1 intermediate the length or height of spindle assembly spool 26 while assembly 10 rotates through a predetermined limited number of final revolutions the strand material s passing through traveler 20 as the foregoing occurs first forms a length of strand material s 2 extending downwardly from package 32 across the notched periphery of spindle collar 28 and then forms a predetermined limited member of coils of strand material s 3 upon spool 26 the next operational steps are 34 doffing 34 or removal of the completed strand package 32 from spindle assembly 10 and 34 donning 34 or placement of a replacement bobbin not shown but of the same construction as bobbin 36 thereon doffing of the completed package 32 separates the strand material s 2 innerconnecting such package and the coil forming strand material s 3 but the latter maintains connection between assembly 10 and strand material s pending donning of the replacement bobbin and commencement of the formation of another strand package upon the assembly commencement of the new package occurs automatically when during resumption of the textile machine 39 s normal package building operation ring rail 16 moves upwardly from its illustrated depressed position to an elevation above spindle collar 28 and the base 38 of the new bobbin the initial upward movement of rail 16 creates a length of strand material s 4 indicated in fig1 by phantom lines extending between the coil.