Machine for incasing cables and the like

Claim 1

IN A PRESS FOR UNIFORMLY INCASING IN A COVERING OF METAL OR THE LIKE AN ELONGATED MEMBER WHICH CONTINUOUSLY ADVANCES LONGITUDINALLY THROUGH THE PRESS, IN COMBINATION, RECEIVING CHAMBER MEANS EXTENDING ALONG A PREDETERMINED AXIS, HAVING AN INLET END AND AN OPPOSED OUTLET END, AND DEFINING A RECEIVING CHAMBER FOR RECEIVING A CHARGE OF COVERING MATERIAL; A MAIN RAM COAXIAL WITH SAID RECEIVING CHAMBER MEANS; FIRST MOVING MEANS OPERATIVELY CONNECTED WITH SAID MAIN RAM FOR AXIALLY MOVING THE SAME CYLICALLY ALONG A WORKING STROKE INTO SAID RECEIVING CHAMBER MEANS THROUGH SAID INLET END THEREOF, FOR PRESSING THE CHARGE OUT OF SAID RECEIVING CHAMBER MEANS THROUGH SAID OUTLET END THEREOF, AND ALONG A RETURN STROKE OUT OF SAID RECEIVING CHAMBER MEANS TO THAT THE LATTER MAY BE PROVIDED WITH A FRESH CHARGE BEFORE THE NEXT WORKING STROKE; PRESS CHAMBER MEANS DEFINING A PRESS CHAMBER THROUGH WHICH AN ELONGATED MEMBER TO BE COVERED CONTINUOUSLY PASSES AND IN WHICH THE COVERING MATERIAL IS PRESSED AROUND THE ELONGATED MEMBER; AN OUTER HOLLOW CYLINDER AND AN INNER HOLLOW CYLINDER TELESCOPICALLY EXTENDING INTO SAID OUTER CYLINDER AND DEFINING A SUPPLY CHAMBER THEREWITH, ONE OF SAID CYLINDERS BEING OPERATIVELY CONNECTED TO ONE OF SAID CHAMBER MEANS AND THE OTHER OF SAID CYLINDERS BEING OPERATIVELY CONNECTED TO THE OTHER OF SAID CHAMBER MEANS; NON-RETURN VALVE MEANS LOCATED BETWEEN SAID SUPPLY CHAMBER AND SAID RECEIVING CHAMBER MEANS FOR PREVENTING MATERIAL FROM FLOWING FROM SAID SUPPLY CHAMBER INTO SAID RECEIVING CHAMBER MEANS; SECOND MOVING MEANS OPERATIVELY CONNECTED WITH ONE OF SAID CYLINDERS FOR MOVING THE SAME; AND CONTROL MEANS OPERATIVELY CONNECTED WITH SAID SECOND MOVING MEANS FOR ACTUATING THE SAME TO MOVE SAID ONE CYLINDER IN A DIRECTION WHICH REDUCES THE VOLUME OF SAID SUPPLY CHAMBER DURING THE RETURN STROKE OF SAID MAIN RAM AND FOR PROVIDING YIELDING MOVEMENT OF SAID ONE CYLINDER DURING THE WORKING STROKE OF THE MAIN RAM, IN RESPONSE TO THE PRESSURE OF THE MATERIAL IN SAID SUPPLY CHAMBER, IN AN OPPOSITE DIRECTION WHICH INCREASES THE VOLUME OF THE SUPPLY CHAMBER SO THAT PART OF THE COVERING MATERIAL IS STORED IN SAID SUPPLY CHAMBER DURING THE WORKING STROKE OF SAID MAIN SUPPLY CHAMBER IS HELD SUBSTANTIALLY CONSTANT DURING OPERATION OF THE PRESS AND THE ELONGATED MEMBER IS CONTINUOUSLY AND UNIFORMLY COVERED WITH COVERING MATERIAL AS THE ELONGATED MEMBER PASSES CONTINUOUSLY THROUGH SAID PRESS CHAMBER.