Molding device for producing railway sleepers

Claim 1

A MOLDING DEVICE FOR PRODUCING A RAILWAY SLEEPER HAVING TWO SPACES CONCRETE BLOCKS HELD IN A SPACED CONDITION BY AN ELONGATED METAL BRACING ELEMENT, SAID MOLDING DEVICE COMPRISING, A MOLD HAVING SIDE WALLS AND A BOTTOM FOR RECEIVING CONCRETE TO BE MOLDED THEREIN, ONE OF SAID SIDE WALLS HAVING A NOTCH FOR RECEIVING AN ELONGATED ELEMENT CORRESPONDING TO THE BRACING ELEMENT OF THE FINISHED SLEEPER THEREIN WITH SAID ELEMENT HAVING AN END PORTION EXTENDING INTO THE MOLD AND EXTENDING OUTWARDLY THEREOF, MEANS COOPERATIVE WITH SAID ELEMENT FOR CLOSING SAID NOTCH WHEN SAID ELEMENT IS IN POSITION, SAID BOTTOM HAVING A PLURALITY OF THROUGH, SPACED OPENINGS CORRESPONDING IN NUMBER OF A PLURALITY OF CAVITIES TO BE FORMED IN A FINISHED BLOCK OF SAID SLEEPER, SAID MOLD BEING OPEN OPPOSITE SAID BOTTOM TO ALLOW THE INTRODUCTION CONCRETE THEREIN, A PLURALITY OF MOLD CORES RECEIVABLE IN A RESPECTIVE ONE OF SAID OPENINGS IN SAID MOLD BOTTOM, ONE OF SAID CORES COMPRISING A PLURALITY OF PARTS POSITIONABLE NEXT ADJACENT EACH OTHER TO FORM IN THE FINISHED CONCRETE BLOCK A CAVITY FOR RECEIVING A SECURING BOLT THEREIN IN AN INVERTED POSITION, SAID PARTS OF SAID ONE CORE COMPRISING AN ELONGATED CENTRAL PART AND TWO OTHER ELONGATED PARTS POSITIONABLE OPPOSITELY EACH OTHER WITH SAID CENTRAL PART THEREBETWEEN, SAID END PORTION OF SAID BRACING ELEMENT HAVING AN APERTURE DISPOSED FOR RECEIVING SAID PARTS OF SAID ONE CORE, SAID TWO OTHER PARTS HAVING LATERAL BOSSES FOR FORMING LATERAL EXTENSIONS SUBSTANTIALLY IMMEDIATELY ADJACENT AN UNDERSIDE OF SAID END PORTION OF SAID BRACING ELEMENT INTERNALLY OF THE BLOCK ON A LONGITUDINAL CAVITY FORMED EXTENDING INTO SAID BLOCK BY SAID ONE CORE, SAID CENTRAL PART BEING WITHDRAWABLE LONGITUDINALLY FROM BETWEEN SAID TWO OTHER PARTS WHEN DISPOSED EXTENDING INTO SAID MOLD THROUGH A RESPECTIE ONE OF SAID OPENINGS ON SAID BOTTOM RECEIVING SAID ONE CORE, SAID CENTRAL PART HAVING A WIDTH SUFFICIENT TO PERMIT WITHDRAWAL OF SAID OTHER TWO PARTS FROM SAID ELONGATED CAVITY SUBSEQUENTIALLY TO WITHDRAWAL OF SAID CENTRAL PART FROM BETWEEN SAID OTHER TWO PARTS AND SAID CENTRAL PART OF SAID ONE CORE COMPRISING AN EXTENSION FOR CAUSING SAID ONE CORE TO EXTEND FROM SAID BOTTOM TO THE OPENING OPPOSITE SAID BOTTOM TO DEFINE AN EXTENSION ON SAID CAVITY ON SAID BLOCK FOR PROVIDING A DRAIN THROUGH SAID BLOCK, AND SAID CENTROL PART AND SAID TWO OTHER PARTS HAVING SHOULDERS ABUTTING SAID END PORTION OF SAID BRACING ELEMENT POSITIONING SAID ONE CORE PARTS IN POSITION FOR MOLDING SAID LATERAL EXTENSIONS OF SAID LONGITUDINAL CAVITY IMMEDIATELY ADJACENT SAID UNDERSIDE OF SAID BRACING ELEMENT.