Tire spreader

Claim 1

A TIRE SPREADER COMPRISING: (A) A BASE HAVING: (1) A FIRST END PLATE HAVING TOP, BOTTOM AND SIDE EDGES, (2) A SECOND END PLATE HAVING TOP, BOTTOM AND SIDE EDGES, (3) A FIRST SIDE PLATE HAVING TOP, BOTTOM AND SIDE EDGES SECURED AT ITS SIDE EDGES TO A SIDE EDGE OF EACH END PLATE, (4) A SECOND SIDE PLATE HAVING TOP, BOTTOM AND SIDE EDGES SECURED AT ITS SIDE EDGES TO THE OTHER SIDE EDGE OF EACH OF SAID END PLATES OPPOSITE SAID FIRST SIDE PLATE TO FORM AN OPEN BOTTOM FRAME ADAPTED TO REST ON A SUPPORT, (5) MEANS PROVIDING SPACED SUPPORTS FOR THE TREAD OF A TIRE ADJACENT TO THE TOP EDGES OF SAID SIDE PLATES AND TO SAID SECOND END PLATE, (6) A TOP PLATE SECURED TO THE TOP EDGE OF THE FIRST END PLATE AND ALONG THE TOP EDGES OF THE SIDE PLATES HAVING A SLOT PARALLEL TO SAID SIDE PLATES ADJACENT TO SAID FIRST END PLATE, (B) A FIRST BAR SECURED TO TTHE EXPOSED SURFACE OF SAID SECOND END PLATE AND EXTENDING A SUBSTANTIAL DISTANCE ABOVE IT, (C) A SECOND BAR IN SAID SLOT PIVOTED INTERMEDIATE ITS ENDS TO SAID TOP PLATE AND EXTENDING A SUBSTANTIAL DISTANCE ABOVE IT, SAID BAR BEING MOVABLE IN SAID SLOT TOWARD AND AWAY FROM SAID FIRST BAR, (D) A FLUID MOTOR HAVING A CASING AND A RECIPROCABLE CONNECTING ROD, SAID CASING BEING MOUNTED ON SAID FIRST END PLATE AND SAID CONNECTING ROD BEING CONNECTED TO SAID SECOND BAR BELOW THE PIVOT WHEREBY THE POWER THRUST OF SAID CONNECTING ROD MOVES THE UPPER END OF SAID SECOND BAR AWAY FROM SAID FIRST BAR, AND (E) A GRIPPER PIVOTED TO THE UPPER END OF EACH BAR HAVING A HOOK ADAPTED TO ENGAGE THE BEAD OF A TIRE PLACED ON SAID BASE WITH THE TREAD ENGAGING SAID SUPPORTS AND TO SPREAD THE BEADS WHEN THE FLUID MOTOR IS ACTUATED.