Function generator

Claim 1

THE METHOD OF GENERATING A FUNCTION WHICH COMPRISES MECHANICALLY RELATIVELY MOVING AN ELECTRICALLY SHIELDED, ELECTRICALLY CONDUCTIVE, NARROW, LINEAR ELEMENT CORRESPONDING IN SHAPE AND ORIENTATION TO A TRANSVERSE COORDINATE OF A GRAPH RELATIVE TO A GRAPH SHEET HAVING AN ELECTRICALLY CONDUCTIVE SURFACE WHICH IS DIVIDED BY THE WIDTH OF AN ELECTRICALLY NON-CONDUCTIVE GRAPH LINE INTO TWO ELECTRICALLY CONDUCTIVE AREAS, SAID CONDUCTIVE ELEMENT BEING MAINTAINED TRANSVERSE TO THE GRAPH LINE WHILE IT IS MOVED IN THE DIRECTION OF THE OTHER COORDINATE OF THE GRAPH AND WHILE IT IS MAINTAINED IN A PLANE PARALLEL TO AND CLOSELY SPACED FROM THE CONDUCTIVE SURFACE OF THE SHEET, SIMULTANEOUSLY APPLYING ALTERNATING ELECTRICAL POTENTIAL FROM AN ALTERNATING CURRENT SUPPLY LINE SOURCE TO THE ELECTRICALLY CONDUCTIVE SPACED AREAS AND UTILIZING AS A SIGNAL THE POTENTIAL OCCURRING BETWEEN THE CONDUCTIVE ELEMENT AND A POTENTIAL SOURCE HAVING A CONDUCTIVE CONNECTION TO THE ALTERNATING CURRENT SUPPLY LINE SOURCE.