Support for lamp

Claim 1

IN AN EQUIPOISED LAMP, THE COMBINATION OF, A BRACKET AND PIVOT STRUCTURE, A CASING STRUCTURE MOUNTED TO BE SUPPORTED AND PIVOTED UPON SAID BRACKET AND PIVOT STRUCTURE, PIVOT MEANS HAVING A HORIZONTAL AXIS, A CAM DISC ECCENTRICALLY PIVOTALLY MOUNTED UPON SAID PIVOT MEANS WITHIN SAID CASING STRUCTURE, AN ARM HAVING A PIVOT PORTION AT ONE END BY WHICH IT IS PIVOTALLY MOUNTED UPON SAID PIVOT MEANS AND IS FIXED TO SAID CAM DISC TO TURN THEREWITH BETWEEN VERTICAL AND HORIZONTAL POSITIONS, A TENSION COIL SPRING HAVING A SUBSTANTIALLY VERTICAL AXIS WITH AN UPPER END WHICH TERMINATES IN A HOOK PORTION WHICH EXTENDS AROUND THE TOP EDGE OF SAID CAM DISC AND RIDES THEREON, AND MEANS ATTACHING THE OTHER END OF SAID SPRING TO SAID CASING STRUCTURE, SAID SPRING AND SAID CAM DISC COMPRISING A SPRING COUNTERBALANCE UNIT WHEREBY THE ROTATION OF SAID CAM DISC FROM AN INITIAL REST POSITION ACTS THROUGH SAID HOOK PORTION TO INCREASE THE AXIAL LENGTH OF SAID SPRING THE RELATIONSHIP BETWEEN SAID CAM DISC AND SAID ARM BEING SUCH THAT SAID CAM DISC INCREASES THE LENGTH OF SAID TENSION SPRING AT SUCH A RATE AS TO SUBSTANTIALLY COUNTERBALANCE THE MOMEMT OF FORCE EXERTED BY SAID ARM DURING ITS SWING MOVEMENT BETWEEN VERTICAL AND HORIZONTAL POSITIONS.