Apparatus for indicating weight and rate of liquid delivered

Claim 1

A FLOW METER COMPRISING A VANE LOCATED IN THE PATH OF THE LIQUID OF WHICH THE FLOW IS TO BE MEASURED, AN INDICATOR, OPERATING CONNECTIONS BETWEEN THE VANE AND INDICATOR, MEANS FOR COMPENSATING FOR THE NON-LINEAR VARIATION OF FORCE AGAINST THE CANE WITH CHANGE OF FLOW, SAID MEANS FOR COMPENSATING COMPRISING A FIRST LEAF SPRING WHICH BEARS AGAINST A PORTION OF THE OPERATING CONNECTIONS AT ONE REGION AND WHICH IS ANCHORED TO A STATIONARY SUPPORT AT THE OTHER END, A SECOND LEAF SPRING BEHIND THE FIRST LEAF SPRING AND ANCHORED TO THE STATIONARY SUPPORT AT THE SAME END AS THE FIRST LEAF SPRING AND IN CONTACT WITH THE FIRST LEAF SPRING ALONG AT LEAST A PORTION OF THE LENGTH OF THE SPRINGS TOWARD THEIR ANCHORED ENDS, AN ABUTMENT THAT HOLDS THE SECOND LEAF SPRING BOWED TOWARD ITS SIDE THAT CONTACTS WITH THE FIRST SPRING BOWED TOWARD ITS SPRING AND IN POSITION TO BE CONTACTED PROGRESSIVELY ALONG ITS LENGTH BY THE FIRST SPRING AS SAID FIRST SPRING IS BENT BY INCREASING FORCE OF THE LIQUID STREAM AGAINST THE VANE, AND A ROW OF CALIBRATING SCREWS BEHIND THE SECOND SPRING ADJUSTABLE TO CONTROL THE SHAPE OF THE BOW OF THE SURFACE OF THE SECOND SPRING WITH WHICH THE FIRST SPRING COMES IN CONTACT.