Photosensitive apparatus for measuring the transverse dimensions of wires and cables

Claim 1

AN APPARATUS FOR MEASURING THE TRANSVERSE DIMENSION OF AN OBJECT OF ELONGATED SHAPE SUCH AS A CABLE, TUBE WIRE, TAPE, COMPRISING IN COMBINATION AN EMITTER OF A RADIANT BEAM AND A PHOTOELECTRIC RECEIVER FOR SAID BEAM, SAID OBJECT BEING PLACED BETWEEN SAID EMITTER AND RECEIVER, MEANS FOR FORMING FROM SAID BEAM ISSUING FROM SAID EMITTER AT LEAST ONE NARROW LUMINOUS ZONE, SAID NARROW LUMINOUS ZONE AND THE OBJECT TO BE MEASURED CONSTITUTING TWO ELEMENTS, AN OPTICAL SYSTEM FOR FORMING THE IMAGE OF ONE OF SAID ELEMENTS ON THE OTHER ELEMENT, MEANS FOR PRODUCING A PERIODIC RELATIVE DISPLACEMENT OF THE IMAGE OF ONE OF SAID ELEMENTS WITH RESPECT TO THE OTHER SO AS TO PERIODICALLY BLOCK THE IMAGE OF ONE OF SAID ELEMENTS BY MEANS OF THE OTHER ELEMENT SAID THEREFORE PERIODICALLY BREAK THE CURRENT DELIVERED BY SAID PHOTOELECTRIC RECEIVER, MEANS FOR PRODUCING AN AUXILIARY REFERENCE SIGNAL VARYING IN PROPORTION TO THE RELATIVE DISPLACEMENT, IN THE DIRECTION OF THE MEASUREMENT, OF THE IMAGE OF ONE OF THE ELEMENTS WITH RESPECT TO THE OTHER, THE MEANS PRODUCING SAID AUXILIARY SIGNAL BEING DRIVEN IN SYNCHONISM WITH THE MEANS PRODUCING THE RELATIVE DISPLACEMENT OF THE IMAGE OF ONE ELEMENT IN RELATION TO THE OTHER, AND MEANS FOR PRODUCING FROM THE VARIATION OF SAID AUXILIARY REFERENCE SIGNAL DURING THE TIME PERIOD IN WHICH SAID PHOTOELECTRIC CURRENT IS DISCONTINUED, AN OUTPUT VOLTAGE GIVING AN INDICATION PROPORTIONAL TO THE TRANSVERSE DIMENSION OF THE MEASURED OBJECT.

Claim 2

AN APPARATUS FOR MEASURING THE TRANSVERSE DIMENSION OF AN OBJECT OF ELONGATED SHAPE SUCH AS A CABLE, TUBE WIRE, TAPE, COMPRISING IN COMBINATION AN EMITTER OF A RADIANT BEAM AND A PHOTOELECTRIC RECEIVER FOR SAID BEAM, SAID OBJECT BEING PLACED BETWEEN SAID EMITTER AND RECEIVER, MEANS FOR FORMING FROM SAID BEAM ISSUING FROM SAID EMITTER AT LEAST ONE NARROW LUMINOUS ZONE, SAID NARROW LUMINOUS ZONE AND THE OBJECT TO BE MEASURED CONSTITUTING TWO ELEMENTS, AN OPTICAL SYSTEM FOR FORMING THE IMAGE OF ONE OF SAID ELEMENTS ON THE OTHER ELEMENT, MEANS FOR PRODUCING A PERIODIC RELATIVE DISPLACEMENT OF THE IMAGE OF ONE OF SAID ELEMENTS WITH RESPECT TO THE OTHER SO AS TO PERIODICALLY BLOCK THE IMAGE OF ONE OF SAID ELEMENTS BY MEANS OF THE OTHER ELEMENT SAID THEREFORE PERIODICALLY BREAK THE CURRENT DELIVERED BY SAID PHOTOELECTRIC RECEIVER, MEANS FOR PRODUCING AN AUXILIARY REFERENCE SIGNAL VARYING IN PROPORTION TO THE RELATIVE DISPLACEMENT, IN THE DIRECTION OF THE MEASUREMENT, OF THE IMAGE OF ONE OF THE ELEMENTS WITH RESPECT TO THE OTHER, THE MEANS PRODUCING SAID AUXILIARY SIGNAL BEING DRIVEN IN SYNCHONISM WITH THE MEANS PRODUCING THE RELATIVE DISPLACEMENT OF THE IMAGE OF ONE ELEMENT IN RELATION TO THE OTHER, AND MEANS FOR PRODUCING FROM THE VARIATION OF SAID AUXILIARY REFERENCE SIGNAL DURING THE TIME PERIOD IN WHICH SAID PHOTOELECTRIC CURRENT IS DISCONTINUED, AN OUTPUT VOLTAGE GIVING AN INDICATION PROPORTIONAL TO THE TRANSVERSE DIMENSION OF THE MEASURED OBJECT.