Feed roll release means for power presses

Claim 1

IN COMBINATION WITH A POWER PRESS, FEED ROLLS ADAPTED TO FEED SHEET MATERIAL THERETO, A MECHANICAL DRIVE CONNECTION BETWEEN SAID POWER PRESS DRIVE MEANS AND SAID FEED ROLLS FOR ROTATING THE LATTER INTERMITENLY BETWEEN MATERIAL PRESSING PORTIONS OF OPERATING CYCLES, MEANS FOR ADJUSTING SAID DRIVE CONNECTION TO VARY SAID INTERMITTENT ROTATION TO ADJUST THE LENGTH OF MATERIAL THUS FED BETWEEN EACH OPERATING CYCLE, AND MEANS OPERABLE TO RELEASE THE ROLL FEED FROM SHEET MATERIAL ENGAGEMENT FOR PREDETERMINED INDEPENDENTLY ADJUSTABLE TIME PERIODS BETWEEN FEEDING CYCLES COMPRISING A ROLL RELEASE SHAFT DRIVEN FROM SAID POWER PRESS IN TIMED RELATION WITH OPERATING CYCLES THEREOF, AN ECCENTRIC ON SAID SHAFT, AND MEANS CONNECTING THE SAME WITH SAID RELEASE MEANS FOR OPERATING THE LATTER, SAID ECCENTRIC INCLUDING MEANS FOR ANGULARLY ADJUSTING THE SAME ON SAID SHAFT FOR VARYING THE TIMING OF THE RELEASE OPERATING MEANS WITH RESPECT TO THE PRESS OPERATING CYCLE, SAID CONNECTING MEANS INCLUDING MEANS FOR ADJUSTING THE EFFECTIVE LENGTH THEREOF TO VARY THE RELATIVE DURATION OF THE RELEASE PERIOD.