Prestretch fixture and combination thereof with drawing die press

Claim 1

IN A DRAWING PRESS AND PRESTRETCH UNIT COMBINATION, A RAM MOVABLE ALONG AN UPRIGHT PATH, RAM POWER MEANS FOR DRIVING THE RAM, A FRAME AT ONE SIDE OF THE RAM PATH, AN ELEVATOR THEREON MOVABLE ALONG A PREDETERMINED PATH TO RAISED AND LOWERED POSITIONS, ELEVATOR POWER MEANS FOR MOVING THE ELEVATOR TO SAID POSITIONS, SELECTIVELY, A STOCK GRIPPER, SUPPORTING MEANS SUPPORTING THE STOCK GRIPPER ON THE ELEVATOR FOR MOVEMENT THEREWITH TO RAISED AND LOWERED POSITIONS AND FOR MOVEMENT RELATIVE THERETO IN OPPOSITE DIRECTIONS TRANSVERSELY OF SAID RAM PATH, SAID GRIPPER, RAM, AND ELEVATOR BEING MOVABLE INDEPENDENTLY OF EACH OTHER, YIELDABLE GRIPPER POWER MEANS ON THE ELEVATOR AND CONNECTED TO THE SUPPORTING MEANS FOR YIELDABLY URGING THE GRIPPER IN ONE OF ITS SAID DIRECTIONS OF MOVEMENT TRANSVERSELY OF SAID PATH, SAID RAM POWER MEANS, ELEVATOR POWER MEANS, AND GRIPPER POWER MEANS EACH BEING OPERABLE INDEPENDENTLY OF THE OTHERS FOR EFFECTING SAID MOVEMENTS OF THE GRIPPER, RAM, AND ELEVATOR INDEPENDENTLY OF EACH OTHER, AND ELEVATOR CONTROL MEANS OPERABLE FOR CONTROLLING THE OPERATION OF THE ELEVATOR POWER MEANS SO AS TO VARY THE SPEED OF LOWERING OF THE ELEVATOR INDEPENDENTLY OF THE SPEED OF LOWERING OF THE RAM.