Wax injection press

Claim 1

IN A WAX INJECTION APPARATUS, A HYDRAULIC OIL RESERVOIR AND ANCHORING MEANS THREFOR, A HYDRAULIC CYLINDER MOUNTED ON THE RESERVOIR AND HAVING ITS BASE PORTION EXTENDING INTO SAID RESERVOIR, A PISTON IN SAID HYDRUALIC CYLINDER, A PUMP FOR PUMPING FLUID UNDER PRESSURE FROM THE HYDRAULIC OIL RESERVOIR INTO SAID HYDRAULIC CYLINDER, MEANS FOR CONTROLLING THE FLOW AND PRESSURE OF THE FLUID FROM SAID PUMP TO SAID HYDRAULIC CYLINDER, A PISTON ROD CONNECTED TO SAID PISTON AND EXTENDING VERTICALLY UPWARD FROM SAID HYDRAULIC CYLINDER, A VERTICAL WAX CYLINDER HAVING A CLOSING AT ITS UPPER END WITH A CENTRAL PASSAGEWAY THERETHROUGH, A PISTON STRUCTURE FORMING A BOTTOM CLOSURE FOR SAID WAX CYLINDER, MEANS FOR LIMITING THE DOWNWARD MOVEMENT OF SAID PISTON STRUCTURE, SEALING MEANS BETWEEN THE PISTON STRUCTURE AND THE WAX CYLINDER, MANS FOR DETACHABLY CONNECTING THE PISTON STRUCTURE IN THE WAX CYLINDER TO THE UPPER END OF THE PISTON ROD IN SAID HYDRAULIC CYLINDER, A HEATING DRUM ENCLOSING SAID WAX CYLINDER, MEANS PROVIDING FRICTION BETWEEN THE PISTON IN SAID WAX CYLINDER AND THE WALL OF THE WAX CYLINDER TO PERMIT MOVEMENT OF SAID WAX CYLINDER WITH SAID PISTON UPON INITIAL MOVEMENT OF THE LATTER, A PRESS HEAD HAVING CONTROLLED NOZZLES FOR ASSOCIATION WITH DIES, SAID PRESS HEAD HAVING A DEPENDING PORTION PROVIDING A PASSAGEWAY THERETHROUGH TO SAID NOZZLES AND INCLUDING A DEPENDING SEAT ADAPTED FOR ALIGNMENT WITH THE CENTRAL PASSAGEWAY IN SAID WAX CYLINDER CLOSURE, WHEREBY VERTICAL MOVEMENT OF SAID WAX CYLINDER UPON INITIAL MOVEMENT OF THE HYDRAULIC PISTON WILL CAUSE A SEALED SEATING OF THE PRESS HEAD WITH SAID WAX CYLINDER, HEATING MEANS FOR SAID HEATING DRUM AND SAID PRESS HEAD, AND MEANS FOR FEEDING HEATING FLUID TO THE HEATING MEANS FOR RETAINING THE WAX IN SAID WAX CYLINDER IN A PREDETERMINED SLUSHY STATE.