Die loading apparatus for power presses

Claim 1

APPARATUS FOR MOVING DIE SETS TO AND FROM WORKING POSITION ON A POWER PRESS BED DISPOSED ABOVE THE ADJACENT FLOOR, SAID APPARATUS COMPRISING A BOLSTER FOR DETACHABLE SECUREMENT TO SUCH PRESS BED AND ADAPTED TO HAVE A DIE SET SECURED THEREON, SUPPORT MEANS AT AN EDGE OF SAID BOLSTER EXTENDING DOWNWARDLY TOWARD SAID FLOOR, WHEEL MEANS AT THE LOWER END OF SAID SUPPORT MEANS TO MOUNT THE SAME FOR ROLLING MOVEMENT TOWARD AND AWAY FROM SAID PRESS BED, AND OTHER WHEEL MEANS AT THE OPPOSITE EDGE OF SAID BOLSTER AND PROJECTING BELOW THE LOWER SURFACE THEREOF FOR ROLLING MOVEMENT ON SAID PRESS BED AS SAID BOLSTER MOVES TO AND FROM ITS WORKING POSITION ON SAID PRESS BED, MEANS AT THE EDGE OF SAID PRESS BED OPPOSITE TO SAID SUPPORT MEANS HAVING SURFACE PORTIONS SUBSTANTIALLY COPLANAR WITH SAID PRESS BED WHEREBY SAID OTHER WHEEL MEANS ROLL THEREONTO AS THE BOLSTER REACHES ITS WORKING POSITION ON THE PRESS BED, SAID WHEEL MEANS SUPPORTING SAID BOLSTER DURING ROLLING MOVEMENT WITH THE LOWER SURFACE OF THE BOLSTER INCLINED UPWARDLY WITH RESPECT TO THE PRESS BED IN A DIRECTION TOWARD SAID OTHER WHEEL MEANS, AND MEANS FOR SELECTIVELY LOWERING SAID OTHER WHEEL MEANS TO LOWER SAID BOLSTER DIRECTLY ONTO SAID PRESS BED BY PIVOTAL MOVEMENT THEREOF ABOUT THE AXIS OF SAID FIRST MENTIONED WHEEL MEANS AND RAISING SAID LAST MENTIONED MEANS TO DISPOSE SAID SURFACE PORTIONS COPLANAR WITH SAID PRESS BED FOR FREE ROLLING MOVEMENT OF SAID OTHER WHEEL MEANS ON SAID SURFACE PORTIONS AND SAID PRESS BED.