Pneumatic memory with electrical read-out means

Claim 1

A PNEUMATIIC MEMORY COMPRISING FIRST AND SECOND SUBSTANTIALLY PARALLEL DISCS ARRANGED TO BE ROTATED AS A UNIT, AND HAVING THEIR CONFRONTING FACES ADJACENT TO EACH OTHER, EACH DISC REPRESENTING A BINARY DIGIT AND HAVING A ROW OF HOLES EXTENDING THROUGH ITS THICKNESS AND WITH THE HOLES IN ONE DISC ALIGNED WITH THE HOLES IN THE OTHER DISC TO FORM PAIRS OF CORRESPONDING HOLES, EACH PAIR OF HOLES CONSTITUTING A BINARY BIT, A PLURALITY OF BALLS EACH RESIDING IN ONE OF THE HOLES OF EACH PAIR OF HOLES AND ADAPTED TO BE MOVED BACK AND FORTH FROM ONE HOLE TO THE OTHER OF THE ASSOCIATED PAIR, MEANS FOR RETAINING EACH BALL IN ITS ASSOCIATED PAIR OF HOLES, MEANS FOR ROTATING SAID DISCS, FIRST CONDUIT MEANS FOR SELECTIVELY CONDUCTING A FLOW OF FLUID UNDER PRESSURE INTO A SELECTED HOLE OF SAID ROTATING FIRST DISC TO FORCE A BALL OUT OF SAID SELECTED HOLE AND INTO THE CORRESPONDING HOLE IN SAID ROTATING SECOND DISC, AND SECOND CONDUIT BEANS FOR SELECTIVELY CONDUCTING A FLOW OF FLUID UNDER PRESSURE INTO A SELECTED HOLE OF SAID ROTATING SECOND DISC TO FORCE A BALL OUT OF THE SELECTED HOLE IN SAID RROTATING SECOND DISC AND INTO THE CORRESPONDING HOLE IN SAID ROTATING FIRST DISC.