Temperature compensating device for fluid meters

Claim 1

A TEMPERATURE COMPENSATING DEVICE FOR FLUID METERS OF THE FIXED DISPLACEMENT TYPE COMPRISING, IN COMBINATION WITH A ROTATABLE INDEX COUNTER HAVING AN OPERATING SHAFT, A FIXED THROW ECCENTRIC MECHANISM ADAPTED TO BE DRIVEN BY THE METER, A LINK ARM OPERATIVELY CONNECTED AT ONE END TO SAID ECCENTRIC MECHANISM, A VARIABLE LENGTH LEVER MOUNTED AT ONE END ON THE COUNTER OPERATING SHAFT FOR OSCILLATORY MOVEMENT ABOUT THE AXIS OF SAID SHAFT, SAID LEVER HAVING ITS OTHER END PIVOTALLY CONNECTED TO THE OTHER END OF SAID LINK ARM FOR OSCILLATION THEREBY THROUGH A STROKE OF CONSTANT LENGTH, AN OVER-RIDING ONEWAY CLUTCH INTERPOSED BETWEEN SAID ONE END OF SAID LEVER AND SAID COUNTER OPERATING SHAFT WHEREBY OSCILLATION OF SAID LEVER INTERMITTENTLY ROTATES SAID OPERATING SHAFT IN ONE DIRECTION ONLY, AND TEMPERATURE-RESPONSIVE MEANS EXPOSED TO THE TEMPERATURE OF THE METERED GAS FOR VARYING THE LENGTH OF SAID LEVER AND THEREBY VARYING THE ANGULAR EXTENT OF THE OSCILLATION THEREOF IN RESPONSE TO VARIATIONS IN THE TEMPERATURE OF THE METERED FLUID.