PROLINER

DRAIN STRUCTURES FOR ASSEMBLY TO EXISTING DRAINS IN THE RE-ROOFING OF BUILDINGS, THE DRAIN STRUCTURES EACH BEING IN THE FORM OF AN OPEN-ENDED SLEEVE OF MALLEABLE METAL HAVING AN OUTWARDLY PROJECTING FLANGE AT ONE END THEREOF

HAND TOOLS FOR USE IN THE INSTALLATION OF SUCH DRAIN STRUCTURES, THE HAND TOOLS EACH BEING IN THE FORM OF A ROD HAVING A HANDLE AT ONE END OF THE ROD AND A RESILIENTLY DEFORMABLE ANNULUS BETWEEN TWO COMPRESSION PLATES AT THE OTHER END OF THE ROD WHEREBY TURNING OF THE ROD CAUSES, THROUGH A LEAD SCREW ARRANGEMENT, COMPRESSION OR RELEASE OF THE ANNULUS BETWEEN THE COMPRESSION PLATES