PRESSURE REGULATOR MECHANISM WITH DIRECT FEEDBACK

Hand 2, turning about fixed axis A, is linked to Bourdon tube 1 which is connected to the item whose pressure is to be regulated. Link 13 is connected by turning pairs B and C to hand 2 and to shutter 3 which turns about axis D, attached to bellows 12, and approaches nozzle 4. Compressed air is delivered through tube 5 and flow-control valve 6 to nozzle 4. The nozzle is also connected to bellows 7…