Adjustable spindle for supporting cloth rolls

Claim 1

IN AN ADJUSTABLE SPINDLE FOR SUPPORTING A ROLL OF WEB MATERIAL THEREON, AN OUTER HOLLOW TUBE ELEMENT, AN INNER TUBE ELEMENT SLIDABLY DISPOSED WITHIN SAID OUTER TUBE ELEMENT AND HAVING A HOLLOW, AT LEAST PARTIALLY THREADED, BORE THEREIN, MEANS FOR ADJUSTABLY AXIALLY SHIFTING SAID INNER TUBE ELEMENT WITH RESPECT TO SAID OUTER TUBE ELEMENT, A PLURALITY OF FIRST COLLECT ELEMENTS FIXED UPON THE OUTER SURFACE OF SAID OUTER TUBE ELEMENT, AND A PLURALITY OF SECOND COLLET ELEMENTS SLIDABLY SUPPORTED ON SAID OUTER TUBE ELEMENT FOR AXIAL MOVEMENT THEREALONG, MEANS INTERCONNECTING SAID SECOND COLLET ELEMENTS AND SAID INNER TUBE ELEMENT FOR COEXTENSIVE MOVEMENT, AND A PLURALITY OF ELONGATED EXPANDABLE SPRING ELEMENTS INTERCONNECTING SAID FIRST AND SECOND COLLET ELEMENTS AND OVERLYING SAID OUTER TUBE ELEMENT; WHEREBY RELATIVE MOVEMENT BETWEEN SAID FIRST AND SECOND COLLET ELEMENTS MAY SERVE TO ENLARGE THE EFFECTIVE DIAMETER OF SAID OUTER TUBE ELEMENT AT A PLURALITY OF AREAS SPACED ALONG SAID OUTER TUBE ELEMENT TO A SUBSTANTIALLY EQUAL DEGREE.