31 picture 5 shows a close up view of the same improved socket 93 which was shown on the rhs of picture 4 you can also see that the socket threaded shell 27 has also been modified slightly some metal has been removed from the area 97 to ensure that the new contact spring 95 does not touch any part of the socket threaded shell 27 so as to avoid any electrical connections between the new contact spring 95 and the socket threaded shell 27 compare the area 97 with its corresponding area 99 in the conventional socket 91 in picture 4 the spring 95 is similar to all the other new springs proposed in the previous embodiments 1 through 8 from the point of view that it can sit near the socket middle contact element 31 and actually can co locate with it we can do one of at least two things one is to enlarge the slot 133 fig9 to look like the enlarged slot 135 in fig1 and then place the new spring 95 adjacent to the socket middle contact element 31 or two we can shave off some material from main body 111 of socket middle contact element 31 enough to equal at least the thickness of the new spring 95 and then fit both the main body 111 and the new spring 95 in the same existing slot 133 without modifying it i chose the second alternative when i built my prototype shown in pictures 4 and 5 picture 6 shows two enlarged views of the new spring 95 i simply placed the spring on the platen of a scanner and scanned its picture into the computer the view on the lhs.