Die casting apparatus

Claim 1

DIE CASTING APPARATUS COMPRISING IN COMBINATION A SUPPORT, A SINGLE DIE MOUNTED ON SAID SUPPORT AND HAVING A RECESS THEREIN, SAID DIE BEING SUPPORT AND HAVING SECTIONS HAVING ABUTTING SURFACES , MEANS MOUNTING SAID MOLD SECTIONS FOR MOVEMENT IN A FIRST RECTILINEAR DIRECTION TOWARD EACH OTHER TO ENGAGE SAID ABUTTING SURFACES AND THEN AWAY FROM EACH OTHER TO DISENGAGE SAID ABUTTING SURFACES, A SPRUE HOLE PASSING THROUGH SAID SINGLE DIE IN REGISTRY WITH SAID ABUTTING SURFACES WHEN ENGAGED, ONE PORTION OF SAID HOLE BEING IN ONE SURFACE AND THE OTHER PORTION BEING IN THE OTHER SURFACE, ONE PORTION OF SAID RECESS BEING IN ONE MOLD SECTION AND THE OTHER PORTION THEREOF BEING IN THE OTHER MOLD SECTION, A MOVABLE DIE MOUNTED ON SAID SUPPORT FOR MOVEMENT IN A DIRECTION TRANSVERSE TO SAID FIRST DIRECTION SELECTIVELY INTO AND OUT OF ENGAGEMENT WITH SAID SINGLE DIE, SAID MOVABLE DIES HAVING A RECESS THEREIN, SAID SINGLE AND MOVABLE DIES HAVING ENGAGEABLE SURFACES WHICH SURROUND A DIE CAVITY FORMED BY THE RECESSES THEREIN, A SPRUE-SHEARING DEVICE MOUNTED ON SAID SUPPORT AND HAVING A RECIPROCABLE SHEAR HEAD THEREON WHICH MOVES IN THE SPACE BETWEEN SAID ABUTTING SURFACES WHEN SAID MOLD SECTIONS ARE PARTED, MEANDS FOR MOVING SAID MOLD SECTIONS INTO ENGAGEMENT WITH EACH OTHER AND SAID MOVABLE DIE INTO ENGAGEMENT WITH SAID SINGLE DIE FORMED BY THE ENGAGED MOLD SECTIONS, INJECTION MEANS FOR INJECTING MOLTEN METAL THROUGH SAID SPACE HOLE INTO SAID DIE CAVITY, MEANS FOR SEPARATING SAID MOLD SECTIONS AND MOVABLE DIE FROM EACH OTHER AFTER SAID METAL HAS HARDENED, SAIDS SHEAR HEAD HAVING SPRUE-CUTTING MEANS MOVABLE TO A POSITION CONTIGUOUS WITH A PORTION OF THE WALL OF SAID CAVITY AND A PORTION OF SAID INJECTION MEANS, AND MEANS FOR ACTUATING SAID SPRUE-SHEARING DEVICE TO MOVE SAID SHEAR HEAD BETWEEN THE SEPARATED ABUTTING SURFACES FOR SHEARING OFF THE SPRUE FORMED BY SAID SPRUE HOLE.