Apparatus for removing burrs from the inside of pipes and the like

Claim 1

IN AN APPARATUS FOR REMOVING A BURR FROM THE INTERIOR OF A PIPE OR THE LIKE, IN COMBINATION, SUPPORT MEANS ADAPTED TO BE PLACED IN THE INTERIOR OF A PIPE OR THE LIKE; RELEASABLE FIXING MEANS CARRIED BY SAID SUPPORT MEANS FOR RELEASABLY FIXING THE SAME TO A PIPE OR THE LIKE IN THE INTERIOR OF THE LATTER, SAID RELEASABLE FIXING MEANS INCLUDING A PLURALITY OF PISTONS MOUNTED IN SAID SUPPORT MEANS FOR MOVEMENT BETWEEN A RETRACTED AND AN ADVANCED POSITION IN WHICH SAID PISTONS ARE ADAPTED TO ENGAGE THE INNER SURFACE OF THE PIPE; TOOL CARRYING MEANS FOR CARRYING A TOOL WHICH WILL ACT ON A BURR IN THE INTERIOR OF A PIPE OR THE LIKE TO REMOVE THE BURR, SAID TOOL-CARRYING MEANS BEING CARRIED BY SAID SUPPORT MEANS FOR MOVEMENT WITH RESPECT TO THE LATTER IN A DIRECTION WHICH WILL PLACE A TOOL CARRIED BY SAID TOOL-CARRYING MEANS IN ENGAGEMENT WITH A BURR TO REMOVE THE LATTER; AND FLUIDPRESSURE MEANS COOPERATING WITH SAID SUPPORT MEANS AND SAID PISTONS OF SAID RELEASABLE FIXING MEANS FOR DIRECTLY APPLYING FLUID PRESSURE TO THE LATTER TO MOVE SAID PISTONS TO SAID ADVANCED POSITION THEREOF SO AS TO FIX THE SUPPORT MEANS RELEASABLY TO THE INTERIOR OF A PIPE OR THE LIKE, SAID FLUID PRESSURE MEANS ALSO COOPERATING WITH SAID TOOLCARRYING MEANS FOR ADVANCING THE LATTER WITH RESPECT TO SAID SUPPORT MEANS.