Hydraulic cutting and punching press

Claim 1

HYDRAULIC PRESS HAVING FRAME MEANS WITH A TABLE OPPOSED TO AT LEAST ONE PRESS CYLINDER FIXED TO SAID FRAME MEANS, A RAM DRIVEN HYDRAULICALLY BY A PISTON GUIDED BY AND SEALED WITHIN SAID PRESS CYLINDER, TOOL MEANS FOR CUTTING AND PUNCHING WORK CONTAINING AT LEAST TWO MEMBERS, ONE OF WHICH AFFIXED TO SAID RAM, THE OTHER OF WHICH AFFIXED TO SAID TABLE, HYDRAULCI MEANS CONTAINING FIRST CONTROL MEANS AND POWER MEANS SUPPLYING SAID PRESS CYLINDER WITH PRESSURE FLUID, A COMBINATION OF THRUST TRANSMITTING MEANS BEING CONNECTED TO SAID RAM AND OF SHOCK ELIMINATING MEANS BEING CONNECTED TO SAID RAM FRAME MEANS, SAID SHOCK ELIMINATING MEANS ACTING TOGETHER WITH SAID THRUST TRANSMITTING MEANS AT LEAST DURING PROPER CUTTING OPERATING TO PREVENT ANY HARMFUL SHOCK OF STRESS RELIEVING SUBSTANTIALLY IN SAID PRESS CYLINDER AND IN SAID HYDRAULIC MEANS WHILE THE WORKPIECE TO BE CUT IS BREAKING AND TEARING APART, SAID SHOCK ELIMINATING MEANS PROVIDED BY AT LEAST ONE COUNTERACTION CYLINDER AND ITS ASSOCIATED PISTON AND A VOLUME OF LIQUID ENCLOSED WITHIN SAID COUNTERACTION CYINDER AND SECOND CONTROL MEANS IN FLUID CONNECTION WITH SAID VOLUME OF LIQUID, SAID SECOND CONTROL MEANS CONTAINING AT LEAST ONE THROTTLE MEANS CONTROLLING THE FLOW OF LIQUID EMERGING FROM SAID COUNTERACTION CYLINDER DURING CUTTING OPERATION AND AT LEAST ONE SHUT-OFF VALVE MEANS HAVING INLET MEANS TO PERMIT QUICK RESTORING OF SAID VOLUME OF LIQUID WITHIN SAID COUNTERACTION CYLINDER OF SAID SHOCK ELIMINATING MEANS AFTER SAID CUTTING OPERATION WHEN SAID RAM IS BEING RETRACTED, SAID VOLUME OF LIQUID WITHIN SAID COUNTERACTION CYLINDER BEING DIMENSIONED DURING SAID PROPER CUTTING OPERATION SUCH THAT THE RATIO OF THE HEIGHT OF THE LIQUID VOLUME WITHIN SAID PRESS CYLINDER TO THE HEIGHT OF THE LIQUID VOLUME WITHIN SAID COUNTERACTION CYLINDER MULTIPLIED WITH THE RATIO OF THE PRESSING AREA DISPLACEABLE WITHIN SAID COUNTERACTION CYLINDER TO THE PRESSING AREA DISPLACEABLE WITHIN SAID PRESS CYLINDER IS GREATER THAN 1.6 AND SAID RATIO OF THE HEIGHT OF THE LIQUID VOLUME WITHIN SAID PRESS CYLINDER TO THE HEIGHT OF THE LIQUID VOLUME WITHIN SAID COUNTERACTION CYLINDER IS GREATER THAN 1/0.5 AND SAID THROTTLE MEANS BEING DIMENSIONED SO THAT A RESISTANCE TO THE LIQUID FLOW THROUGH A THROTTLE HAVING A LENGTH OF 0.1 INCH UP TO 1 INCH AND A CROSS-SECTIONAL AREA, THE RATIO OF WHICH TO THE PRESSING AREA OF SAID COUNTERACTION CYLINDER IS SMALLER THAN 1/2.500.