1. A tire curing press apparatus (50), comprising:
a bottom structure (2) having a pair of hollow squeeze cylinder (6) assembled on each side of the bottom structure (2), each squeeze cylinder (6) having a cavity at its center for mounting a floating squeeze column (5) and a hollow squeeze piston (12) slides inside the squeeze cylinder (6);
a top structure (1) connected to other end of the squeeze column (5) in such a way that the top structure (1) slides above the bottom structure (2) via the squeeze column (5) by a lift cylinder (3) mounted over each side of the bottom structure (2);
a double groove locking system (4) having two semicircle jaws (17) with a groove (28) inside mounted on the top structure (1) and concentric to each squeeze column (5) for locking the top structure (1) around the squeeze column (5) wherein the jaws (17) are pulled together by a lock cylinder (16) to lock over a plurality of grooves (25, 26, 27) formed on an external surface of the squeeze column (5);
a heat plate (18) mounted on a lower surface of the top structure (1) and an upper surface of the bottom structure (2) having an inner cavity through which a fluid media flows during a curing process; and
a mold (19) made of two halves mounted above each heat plate (18) comes in contact with each other when a hydraulic oil pressure (21) is pumped into the squeeze cylinder (6),
wherein a predetermined gap (22) is maintained between the molds (19) by adjusting a stroke length of the piston (12) and a pitch distance between the grooves (26) in the squeeze column (5) if the hydraulic oil pressure (21) drops to provide support to an expanding bladder (23).
2. The apparatus of claim 1, further comprising a sensor magnet mounted on the
top structure (1) and a differential transformer (9) mounted over bottom structure (2)
senses position of the top structure (1).

3. The apparatus of claim 1, wherein the lift cylinder (3) is fixed to the bottom structure (2) and a connecting rod of the lift cylinder (3) is connected to the top structure (1) to provide an up and down sliding motion of the top structure (1).
4. The apparatus of claim 1, wherein the bottom structure (2) is composed of a limit switch (11) on its top end for sensing the position of the piston (12) inside the squeeze cylinder (6).
5. The apparatus of claim 1, wherein the squeeze column (5) connects both top and bottom structure (1, 2) in such a way that the squeeze column (5) is raised over the bottom structure (2) with a bush (13) and its bottom end is mated with a rod-end retainer (7) and the piston (12).
6. The apparatus of claim 1, wherein the semicircle jaws (17) are bolted to two slide plates (15) resting over a lock housing (14) which gets actuated back and forth by the lock cylinder (16) to lock the top structure (1) to the grooves (25, 26, 27) of the squeeze column (5) to attain variable heights between the top and bottom structure (1, 2).
7. The apparatus of claim 1, wherein each squeeze column (5) is composed of a top groove (25) at its top end to lock the top structure (1) to the squeeze column (5) by the locking system (4) when the lift cylinders (3) are fully extended for opening the top structure (1).
8. The apparatus of claim 1, wherein each squeeze column (5) is composed of a
plurality of middle grooves (26) on its middle portion to lock the top structure (1) to
the squeeze column (5) by the locking system (4) when the lift cylinders (3) are
retracted for closing the top and bottom structure (1, 2) at variable heights and to
accommodate different sizes of molds (19).
9. The apparatus of claim 1, wherein each squeeze column (5) is composed of an
intermediate groove (27) positioned between the top and middle grooves (25, 26) to