Coil spring counterbalance hardware assembly and connection method therefor

An improved coil spring counterbalance hardware assembly adapted for counterbalancing a vertically displaceable sash within a window frame encasement structure, said assembly comprising in combination at least one coil spring sub-assembly having a coil spring supportably retained about the uninterrupted external coil spring circumferential surface thereof within said coil spring sub-assembly by means of a cooperatively radiused coil spring restraining shoe said coil spring sub-assembly being adapted for installation connection to a window jamb of said window frame encasement structure, a sash attached balance shoe connector sub-assembly adapted for installation connection to the lower frame member of said sash the same side thereof as the installation connection of said coil spring sub-assembly to said window jamb, and a coil spring ribbon of said coil spring of said coil spring sub-assembly extendable therefrom and connectable to a balance shoe slot within said balance shoe connector sub-assembly by means of a first cooperatively complementary slot means on one side edge of said coil spring ribbon and inward from the end thereof, wherein said coil spring is further provided with a second cooperatively complementary slot means on the opposite side edge of said coil spring ribbon as said first cooperatively complementary slot means and at a greater inward distance from the end than said first slot means.