Fluid-pressure-operated computer

Claim 1

IN AN AIR-PRESSURE-OPERATED COMPUTER, A FIRST STATIONARY PIVOT, A FIRST LEVER MOUNTED FOR TURNING MOVEMENT ABOUT SAID STATIONARY PIVOT, A FIRST AIR-PRESSURE-OPERATED MOTOR MOUNTED TO APPLY A FORCE TO SAID FIRST LEVER AT A FIXED DISTANCE FROM SAID FIRST PIVOT, A SECOND AIR-PRESSUREOPERATED MOTOR MOUNTED TO APPLY A FORCE TO SAID FIRST LEVER IN THE OPPOSITE DIRECTION TO THE FORCE APPLIED BY SAID FIRST MOTOR, A CANTILEVER MOUNTED TO RECEIVE THE FORCE OF SAID SECOND MOTOR AND TO TRANSMIT IT, A STATIONARY PIVOT FOR SAID CANTILEVER AT AN ANGLE TO SAID STATIONARY PIVOT FOR SAID FIRST LEVER, FRICTION-REDUCING MEANS CONTACTING SAID FIRST LEVER AND SAID CANTILEVER AND MOUNTED FOR MOVEMENT PARALLEL TO THE PIVOT FOR SAID FIRST LEVER, A THIRD AIRPRESSURE-OPERATED MOTOR CONNECTED TO MOVE SAID FRICTIONREDUCING MEANS, A FIRST FLAPPER-NOZZLE VALVE MOUNTED TO BE MOVED BY SAID FIRST LEVER AND CONNECTED TO A SOURCE OF AIR UNDER PRESSURE SO AS TO VARY THE PRESSURE OF A SUPPLY OF AIR FROM SAID SOURCE, A CONNECTION BETWEEN SAID SUPPLY OF AIR AND AT LEAST ONE OF SAID MOTORS, MEANS CONNECTING AT LEAST ONE OF SAID MOTORS OTHER THAN THOSE CONNECTED TO SAID SUPPLY OF AIR TO A SUPPLY OF AIR UNDER PRESSURE WHICH IS VARIED TO PROVIDE AN INPUT SIGNAL, A BIAS SPRING CONNECTED TO SAID FIRST LEVER TO MOVE IT IN THE DIRECTION OPPOSITE TO THAT IN WHICH SAID FIRST LEVER IS MOVED BY SAID FIRST MOTOR, A BIAS SPRING CONNECTED TO SAID CANTILEVER TO MOVE SAID CANTILEVER IN A DIRECTION OPPOSITE TO THAT IN WHICH SAID CANTILEVER IS MOVED BY SAID SECOND MOTOR, A THIRD STATIONARY PIVOT, A SECOND FLAPPER MOUNTED ON SAID THIRD PIVOT FOR TURNING MOVEMENT ABOUT SAID THIRD PIVOT, A THIRD BIAS SPRING CONNECTED TO SAID FRICTION-REDUCING MEANS SO THAT THE TENSION OF SAID THIRD BIAS SPRING IS VARIED BY THE MOVEMENT OF SAID FRICTIONREDUCING MEANS AND TO SAID SECOND FLAPPER, A FOURTH BIAS SPRING CONNECTED TO SAID SECOND FLAPPER SO AS TO TURN SAID SECOND FLAPPER ABOUT SAID THIRD PIVOT IN ONE DIRECTION, A SECOND NOZZLE CONNECTED SO AS TO BE ACTUATED BY SAID SECOND FLAPPER AND FORMING THEREWITH A SECOND FLAPPER-NOZZLE VALVE, A PILOT VALVE CONNECTED UNDER THE CONTROL OF SAID SECOND FLAPPER-NOZZLE VALVE AND TO A SOURCE OF AIR UNDER PRESSURE SO AS TO VARY THE PRESSURE OF A SECOND SUPPLY OF PRESSURE FROM SAID SOURCE, A FOURTH AIR-PRESSURE-OPERATED MOTOR CONNECTED TO APPLY A FORCE TO SAID SECOND FLAPPER IN THE DIRECTION OPPOSITE TO THE FORCE APPLIED TO SAID SECOND FLAPPER BY SAID FOURTH BIAS SPRING, CONDUIT CONNECTING SAID SECOND SUPPLY OF AIR UNDER PRESSURE TO SAID FOURTH MOTOR AND TO SAID SECOND MOTOR, AND AN OUTPUT ELEMENT CONNECTED TO SAID SECOND SUPPLY OF AIR UNDER PRESSURE SO AS TO BE ACTUATED THEREBY.