Pressure and temperature compensator for a gas meter

Claim 1

A VOLUME CORRECTION DEVICE USED FOR CORRECTING THE MEASUREMENT BY A MEASURING DEVICE OF A GAS FLOWING THROUGH A CONDUIT WHICH COMPRISES A BALANCE BEAM MOUNTED FOR PIVOTAL MOVEMENT AND HAVING A FREE END PORTION, SAID END PORTION BEING NORMALLY URGED IN ONE DIRECTION BY URGING MEANS, MEANS RESPONSIVE TO BAROMETRIC PRESSURE AND MEANS RESPONSIVE TO THE SERVICE PRESSURE OF THE GAS, THE SERVICE PRESSURE MEANS AND THE BAROMETRIC PRESSURE MEANS BEING CONNECTED FOR EXERTING A RESULTANT SUM OF RESPONSIVE FORCE AGAINST SAID BEAM AT A POINT INTERMEDIATE THE PIVOT OF SAID BEAM AND SAID FREE END PORTION IN A DIRECTION OPPOSITE TO THAT AT WHICH SAID FREE END PORTION IS NORMALLY URGED, MEANS RESPONSIVE TO THE ABSOLUTE SERVICE TEMPERATURE OF THE GAS CONNECTED FOR LINEAR MOVEMENT OF A PIVOT POINT MEANS ALONG A LINE ABOVE AND SUBSTANTIALLY PARALLE TO THE LONGITUDINAL AXIS OF SAID BEAM, AN INCLINED ROD PIVOTALLY MOUNTED AT ITS UPPER END ON SAID PIVOT POINT MEANS AND SLIDABLE IN THE DIRECTION OF ITS AXIS ALONG SAID PIVOT POINT MEANS AND PIVOTALLY MOUNTED AT ITS LOWER END ON A SUPPORT, SAID SUPPORT BEING LINEARLY SLIDABLE IN A DIRECTION SUBSTANTIALLY PERPENDICULAR TO THE LONGITUDINAL AXIS OF SAID BEAM, A STOP POSITIONED ON SAID SUPPORT ADAPTED TO ENGAGE SAID BEAM AT ITS FREE END PORTION IN A DIRECTION OPPOSITE TO THAT AT WHICH SAID BEAM IS NORMALLY URGED, SAID ROD CARRYING AN EXTENSION THEREON GUIDED FOR LINEAR TRAVEL, SAID EXTENSION BEING CONNECTED TO MEANS DEFINING A CORRECTION INTERMEDIATE DRIVE MEANS FOR A GAS VOLUME MEASURING DEVICE FOR SAID GAS.