ROTATIONAL MOULDING MACHINES
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Abstract
THE INVENTION RELATES TO A MACHINE FOR MAKING ARTICLES OF PLASTICS MATERIAL BY ROTATIONAL MOULDING. THE MACHINE HAS A NUMBER OF MOULD CARRIERS ON WHICH HOLLOW MOULDS CAN BE MOUNTED. THE MOULD CARRIERS ARE SUPPORTED IN THE MACHINE IN SUCH A WAY THEY CAN BE ROTATED ABOUT A PLURALITY OF AXES SO THAT PLASTICS MATERIAL CHARGED INTO A MOULD ON A MOULD CARRIER CAN BE CAUSED TO FLOW OVER THE INTERIOR SURFACE OF THE MOULD. THE MACHINE HAS DOOR MEMBERS WHICH ARE ARRANGED FOR SWINGING MOVEMENT SO THAT THEY CAN BE MOVED INTO AND OUT OF OPERATIVE POSITIONS IN WHICH THEY CLOSE AN OVEN IN WHICH THE MOULDS ARE HEATED BY HOT AIR.
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