Annular track member for a spinning cylindrical pipe core during interior lining operation

Claim 1

IN A PIPE CORE SPINNING MACHINE A PAIR OF CORE SUPPORTING WHEELS, AN ANNULAR TRACK MEMBER ADAPTED TO BE RELEASABLY MOUNTED ON THE EXTERIOR CIRCUMFERENCE OF A PIPE CORE COMPRISING AN ANCHORING BAND AND A TRACTION BAND, SAID ANCHORING BAND COMPRISING ACURATE SEGMENTS RELEASABLY SECURED TOGEHTER AND ADAPTED TO ANCHOR TO THE EXTERIOR OF THE CORE, SAID TRACTION BAND COMPRISING A CIRCUMFERENTIALLY CONTINUOUS TRACTION SURFACE ADAPTED TO ENGAGE WHEELS, AN OUTWARDLY FACING POSITIONING AREA THE TRACTION BAND AND AN OUTWARDLY FACING POSITIONING AREA ON THE ANCHORING BAND, SAID POSITIONING AREAS HAVING A SHIFTABLE ENGAGEMENT WITH RESPECT TO EACH OTHER, AND MUTUALLY ENGAGING CONNECTING MEANS HAVING ELEMENTS ON THE RESPECTIVE BANDS ADAPTED TO FORCE SAID BANDS INTO ENGAGEMENT WHEREBY TO PROVIDE A FIRM, SMOOTH ROLLING SURFACE BETWEEN SAID CORE AND SAID WHEELS.