Apparatus for making conduit

Claim 1

APPARATUS ADAPTED FOR LINING AND IMPREGNATING WITH A SLUGGISH FLUID COMPOUND THE POROUS WLLS OF A CONDUIT HAVING SLEEVE-LIKE TERMINAL FITTINGS WITH FLANGES ADJACENT THEIR OUTER ENDS, COMPRISING A LONGITUDINALLY DIVIDED MOLD HAVING AN ELONGATED CAVITY FORMED BETWEEN CONFRONTING PARTS OF THE MOLD, SAID CAVITY IN ITS GENERALLY CENTRAL PART BEING IN THE FORM OF A MOLD CAVITY RECEIVING THE CONDUIT IN EXTENDED CONDITION, AT PORTIONS THEREOF IMMEDIATELY OUTWARDLY OF THE MOLD CAVITY BEING IN THE FORM OF COUNTERBORES OF LARGER DIAMETER THAN THE MOLD CAVITY AND OF SUCH DIAMETER AS SNUGLY TO RECEIVE THE ADJACENT END PORTIONS OF THE SLEEVE-LIKE TERMINAL FITTINGS ON THE CONDUIT, AND AT ITS OUTER ENDS BEING IN THE FORM OF PASAGES OF LARGER DIAMETER THAN THE COUNTERBORES AND RECEIVING THE FLANGES OF THE TERMINAL FITTINGS ON THE CONDUIT, THE JUNCTIONS BETWEEN THE MOLD CAVITY AND THE COUNTERBORES AND THE JUNCTIONS BETWEEN THE COUNTERBORES AND THE PASSAGES BEING IN THE FORM OF GENERALLY TRANSVERSE ANNULAR SHOULDERS, THE SLEEVES ON THE TERMINAL FITTINGS LYING WITHIN THE COUNTERBORES AND HAVING SHOULDERS AT THE OPPOSITE ENDS OF THE MOLD CAVITY, A THE SHOULDERS AT THE OPPOSITE ENDS OF THE MOLD CAVITY, A BLOCK BEYOND EACH END OF THE MOLD CAVITY, EACH BLOCK BEING SUPPORTED IN AND GUIDED BY THE RESPECTIVE PASSAGE FOR MOVEMENT TOWARD AND AWAY FROM THE RESPECTIVE END OF THE MOLD CAVITY AND FOR EASY REMOVAL FROM THE PASSAGE, MEANS FOR DETACHABLY SECURING EACH RESPECTIVE TERMINAL FITTING AND ITS BLOCK TOGETHER IN THE FORM OF AN ASSEMBLY, EACH ASSEMBLY HAVING A GENERALLY TRANSVERSE ANNULAR SHOULDER, EACH SAID LAST NAMED ANNULAR SHOULDER CLOSELY CONFRONTING THE JUNCTION BETWEEN THE COUNTERBORE AND THE RESPECTIVE PASSAGE IN THE MOLD, EACH BLOCK HAVING AN INWARDLY FACING ABUTMENT SURFACE THEREON ENGAGING THE OUTER FACE OF THE RESPECTIVE TERMINAL FITTING WHEN THE BLOCK AND FITTING ARE IN ASSEMBLED RLATIONSHIP, MEANS MOUNTED ON THE MOLD FOR THRUSTING EACH OF THE ASSEMBLIES TOWARD THE MOLD CAVITY SO AS FORCIBLY TO THRUST AT LEAST ONE OF THE INNER END SURFACES OF THE SLEEVE AND THE LAST NAMED ANNULAR SHOULDER OF THE ASSEMBLY INTO SEALING ENGAGEMENT WITH THE INNER END OF THE RESPECTIVE COUNTERBORE AND THE JUNCTION BETWEEN THE RESPECTIVE COUNTERBORE AND THE PASSAGE, RESPECTIVELY, AND MEANS IN THE MOLD FOR INTRODUCING THE COMPOUND UNDER PRESSURE TO THE OUTER SURFACE OF THE CONDUIT OVER AN AREA DISPOSED GENERALLY LONGITUDINALLY OF THE CONDUIT, WHEREBY THE CONDUIT AND BLOCKS MAY BE INSERTED AND REMOVED FROM SAID CAVITY AS A CONDUIT-BLOCK ASSEMBLY WHEN THE MOLD SECTIONS ARE SEPARATED.