Remote control hydraulic line stripper

Claim 1

A STRIPPER FOR A WIRE LINE USED IN THE WELL PIPE OF A GAS OR OIL WELL AND INCLUDING IN COMBINATION A HOUSING HAVING A CYLINDRICAL BORE, MEANS FOR MOUNTING SAID HOUSING ON A WELL PIPE WITH THE LINE EXTENDING THROUGH SAID BORE, MEANS AT THE END OF SAID BORE REMOTE FROM SAID MOUNTING MEANS PROVIDING AN ABUTMENT CLOSING ONE END OF SAID BORE AND PROVIDING A GUIDE PASSAGE FOR SAID LINE, A PISTON HAVING A FLAT ANNULAR TOP SLIDABLE IN SAID BORE AND HAVING A PASSAGE FOR SAID LINE, A SUBSTANTIALLY CYLINDRICAL WIPER OF RESILIENT MATERIAL HAVING AN AXIAL HOLE TO CLOSELY RECEIVE SAID WIRE, AN ANNULUS OF RESILIENT MATERIAL CLOSELY ENGAGING THE WHOLE CYLINDRICAL WALL OF THE WIPER AND FILLING THE SPACE BETWEEN IT AND THE WALL OF SAID CYLINDRICAL BORE, ONE END OF EACH SAID WIPER AND SAID ANNULUS ENGAGING SAID ABUTMENT AND THE OTHER ENDS BEING ENGAGED BY SAID PISTON, MEANS TO DELIVER PRESSURIZED FLUID BENEATH SAID PISTON TO COMPRESS SAID ANNULUS LONGITUDINALLY ONLY AND SIMULTANEOUSLY COMPRESS THE WIPER, TO MAINTAIN THE WALL OF THE AXIAL HOLE IN THE WIPER IN CLOSE ENGAGEMENT WITH THE LINE IN SPITE OF WIPER HOLE WALL WEAR FROM LINE TRAVEL ABRASION, LONGITUDINALLY SPACED, SUBSTANTIALLY NONCOMPRESSIBLE MEANS INTERLEAVED WITH THE RESILIENT MATERIAL OF SAID ANNULUS FOR SUBSTANTIALLY ITS FULL LENGTH WHEREBY TO EXTRUDE THE INTERLEAVED MATERIAL INWARDLY AS THE ANNULUS IS COMPRESSED LONGITUDINALLY, AND GAUGE MEANS RESPONSIVE TO THE SAID PRESSURIZED FLUID TO INDICATE CLOSE APPROACH OF SAID NON-COMPRESSIBLE MEANS TO EACH OTHER BY RAPID RISE IN THE PRESSURE NEEDED TO COMPRESS THE ANNULUS AND THUS INDICATE APPROACHING CRITICAL WEAR OF THE WIPER MATERIAL.