wedge sleeve the tubular body is provided with diametrically opposite radial slots through which an operator extending diametrically of the tubular body has its opposite ends slidingly received and opposite ends of the operator are anchored to the wedge sleeve and force generating structure disposed within the tubular body is operatively connected to the operator for the wedge sleeve and is operable to effect longitudinal shifting of the wedge sleeve along the tubular body application_number US 71352891 A description referring now more specifically to the drawings the numeral 10 generally designates an expanding roll core spindle for support of a tubular roll core 12 therefrom upon which a flexible web is to be wound in a tensioned state and at high speed in order to form a roll 14 of the web on the core 12 as may best be seen from fig2 and 3 of the drawings the roll core spindle 10 includes an elongated tubular body 16 having opposite ends 18 and 20 upon which end rights or rings 22 and 24 are removably mounted for mounting the roll core spindle 10 from a winding machine not shown the end right 24 is removably secured to the end 20 through the utilization of suitable fasteners 26 and is adapted to oppose the end of a tubular core such as the core 12 but which is of greater length and extends almost completely between the end rights or rings 22 and 24 the end right 22 is mounted on the end 18 through the utilization of a tubular adapter 28 secured on the end 18 by a fastener 30 and the end 18 and adapter 28 have a spring biased.