Injection molding machine

Claim 1

IN AN INJECTION MOLDING MACHINE, THE COMBINATION COMPRISING: A CLAMPING PLATEN; A FIXED MOLDING PLATEN A MOVABLE MOLDING PLATEN POSITIONED AND MOVABLE THERE BETWEEN; A TOGGLE LINKAGE FOR MOVING SAID MOVABLE PLATEN INCLUDING A PAIR OF LINK MEANS EACH HAVING INNER AND OUTER ENDS, SAID LINK MEANS BEING PIVOTALLY INTERCONNEDTED AT THEIR INNER ENDS AND RESPECTIVELY PIVOTALLY CONNECTED AT THEIR OUTER ENDS, ONE TO SAID CLAMPING PLATEN AND THE OTHER TO SAID MOVABLE PLATEN, AND SAID LINK MEANS BEING ADAPTED FOR MOVEMENT BETWEEN ON END-TO-END, CLOSED PLATEN POSITIN AND AN ANGULAR, OPEN PLATEN POSITION TO ONE SIDE OF SAID CLOSED PLATEN POSITION; STOP MEANS FOR PREVENTING MOVEMENT OF SAID LINK MEANS TO THE OTHER SIDE OF SAID CLOSED PLATEN POSITION; A FRAME MEMBER; A PAIR OF SUPPORT MEANS EACH HAVING INNER AND OUTER ENDS, SAID SUPPORT MEANS BEING PIVOTALLY CONNECTED AT THEIR INNER ENDS TO SAID FRAME MEMBER AND RESPECTIVELY PIVOTALLY CONNECTED AT THEIR OUTER ENDS, ONE TO SAID CLAMPING PLATEN AND THE OTHER TO SAID MOVABLE PLATEN; LINK ACTUATING MEANS FOR MOVING SAID LINK MEANS BETWEEN SAID OPEN AND CLOSED PLATEN POSITIONS, SAID LINK ACTUATING MEANS INCLUDING TWO PIECES ADAPTED FOR RELATIVE RECIPROCABLE MOVEMENT BETWEEN RELATIVELY EXTENDED AND CONTRACTED POSITIONS IN RESPONSE TO A SIGNAL TO ONE OF SAID PIECES, ONE OF SAID PIECES BEING PIVOTALLY CONNECTED TO SAID TOGGLE JUNCTION AND THE OTHER OF SAID PIECES BEING MOVABLY MOUNTED ON SAID FRAME MEMBER; ONE OF SAID EXTENDED AND CONTRACTED POSITIONS OPERATIVELY DEFINING SAID OPEN PLATEN POSITION OF SAID LINK MEANS; AND ADJUSTMENT MEANS ON SAID FRAME MEMBER FOR MOVING SAID OTHER PIECE BETWEEN A PLURALITY OF ALTERNATIVE OPERATING POSITIONS WHEREBY SAID ONE POSITION OF SAID ACTUATING MEANS AND HENCE SAID OPEN PLATEN POSITION OF SAID LINK MEANS MAY BE SELECTIVELY ADJUSTED RELATIVE TO SAID STOP MEANS TO THEREBY VARY THE DISTANCE OF MOVEMENT OF SAID MOVABLE PLATEN.