Linearity adjustment means for meters

Claim 1

IN A METER, A MOVABLE MEASUREMENT RESPONSIVE ELEMENT, AN INDICATOR GAUGE, AND TRANSMISSION MEANS FOR OPERATIVELY CONNECTING THE ELEMENT TO THE GAUGE, SAID TRANSMISSION MEANS INCLUDING A MECHANICAL LINKAGE COUPLED TO THE SAID ELEMENT, TRANSMITER MEANS INTERPOSED BETWEEN THE LINKAGE AND THE GAUGE FOR TRANSMITTING MOVEMENTS OF SAID LINKEAGE TO SAID GAUGE, SAID MECHANICAL LINKAGE COMPRISING SAID ROTATABLE MEMBER, A CONNECTING LINK CONNECTING SAID ROTATABLE MEMBER WITH THE MOVABLE MEASUREMENT RESPONSIVE ELEMENT TO CAUSE ROTATION OF SAID ROTATABLE MEMBER IN RESPONSE TO MOVEMENT OF SAID MEASUREMENT RESPONSIVE ELEMENT AT LEAST ONE LINEARITY ADJUSTMENT DEVICE FOR CORRECTING NON-LINEAR RELATION BETWEEN THE MOVEMENTS OF SAID ELEMENT AND THE VARIATIONS IN QUANTITY WHICH PRODUCES SAID MOVEMENTS INCLUDING A FIRST LINEARITY ADJUSTMENT MEANS COMPRISING A ROTATABLY MOUNTED CALIBRATED DISC CONNECTED TO AND MOVABLE WITH SAID ROTATABLE MEMBER, CONNECTING MEANS CONNECTED TO SAID CALIBRATED DISC AT A POINT OFFSET FROM THE CENTER OF ROTATION OF SAID DISC LINKING SAID DISC TO SAID TRANSMITTER MEANS, AND MEANS TO PERMIT ROTATABLE ADJUSTMENT OF SAID DISC RELATIVE TO SAID ROTATABLE MEMBER.