Press for portable tire retreading molds

Claim 1

IN COMBINATION WITH A PRESS OPERABLE FOR THE PURPOSE DESCRIBED AND WHICH PRESS INCLUDES AN UPPER PLATEN AND A LOWER PLATEN, THE LOWER PLATEN BEING MOVABLE VERTICALLY TOWARD THE UPPER PLATEN: A DOLLY SEPARATE FROM THE PRESS, SUCH DOLLY COMPRISING A TRANSPORTABLE BASE, AND VERTICAL SUPPORTS ON THE BASE, TIRE MOLD SUPPORTING MEANS ON THE VERTICAL SUPPORTS, SUCH LATTER MEANS BEING EFFECTIVE THROUGH MOVEMENT OF THE DOLLY TO SELECTIVELY PROJECT A SUPPORTED MOLD INTO A POSITION BETWEEN THE PLATENS OR TO WITHDRAW A MOLD FROM A POSITION BETWEEN THE PLATENS, THE MOLD SUPPORTING MEANS INCLUDING SUBSTANTIALLY HORIZONTAL ARMS PROJECTING OUTWARDLY FROM THE VERTICAL SUPPORTS AND BEING ADAPTED TO OVERLIE THE LOWER PLATEN UPON ADVANCE OF THE DOLLY TOWARD THE PRESS, CRADLES FORMED ON THE OUTER END OF THE ARMS, WHICH CRADLES ARE ADAPTED TO RECEIVE TRUNNIONS PROJECTING DIAMETRICALLY FROM THE OUTER CIRCUMFERENCE OF THE MOLD, THE HEIGHT OF THE ARMS RELATIVE TO THE BASE BEING SUCH THAT WHEN THE MOLD IS PROJECTED BETWEEN THE PLATENS IT WILL LIE IN A HORIZONTAL PLANE SPACED VERTICALLY FROM THE HORIZONTAL PLANE OF THE LOWER PLATEN, VERTICAL MOVEMENT OF THE LOWER PLATEN BEING THEN EFFECTIVE TO ENGAGE THE MOLD AND LIFT IT VERTICALLY AWAY FROM THE SUPPORTING ARMS.