Pneumatic transmitters

Claim 1

A MAGNET COUPLING FOR A FLOW-METER INCLUDING A MOVABLE FLOW-RESPONSIVE ELEMENT, A FIRST BAR MAGNET POLARIZED AT ITS ENDS AND SECURED TO SAID MOVABLE ELEMENT, SAID BAR MAGNET BEING MOVABLE LONGITUDINALLY WITH SAID MOVABLE ELEMENT IN A PREDETERMINED PATH, A FLOW QUANTITY INDICATOR GAUGE, A PIVOTAL ARM, A COUNTER-SHAFT ATTACHED TO ONE END OF THE ARM AND EXTENDING GENERALLY LONGITUDINALLY OF THE ARM, MEANS FOR ADJUSTING THE SHAFT ANGULARLY ABOUT THE SAID PIVOT WITH RESPECT TO THE ARM, A LINK HAVING ONE END THEREOF ATTACHED TO AND ADJUSTABLE LONGITUDINALLY OF THE COUNTER-SHAFT AND THE OTHER END THEREOF OPERABLE TO ACTUATE THE GAUGE TO INDICATE THE RATE OF FLOW, A PAIR OF BAR MAGNETS ATTACHED TO THE OPPOSITE END OF SAID ARM FROM SAID COUNTER-SHAFT EXTENDING TRANSVERSELY AND IN STRADDLING RELATION TO SAID FIRST BAR MAGNET, SAID PAIR OF BAR MAGNETS BEING MOVABLE AS A UNIT IN PLANES PARALLELING SAID FIRST BAR MAGNET AND MOVABLE IN PATHS OBLIQUE AT LEAST IN PART TO THE PATH OF MOVEMENT OF SAID FIRST BAR MAGNET, EACH OF THE MAGNETS OF SAID PAIR BEING POLARIZED TRANSVERSELY AND UNIFORMLY MAGNETIZED ALONG THEIR LENGTHS WITH THE MAGNETIC FIELDS OF SAID PAIR OF BAR MAGNETS EXTENDING BEYOND BOTH SIDES OF SAID FIRST BAR MAGNET IN ALL POSITIONS OF SAID FIRST BAR MAGNET AND OF SAID PAIR OF BAR MAGNETS.