pin 19 fig3 and the part 20 fig4 which ensure the electrical connection of their respective electrodes 3 and 10 it is to be noted that the rest of these electrodes is strictly identical indeed the upper part with respect to fig3 and 4 presents a notch 21 whereas the lower part is constituted by a lug 22 whose particular configuration determines two fingers 23 and 24 the notch 21 enables the conductor 11 fig2 to be soldered when the electrode is used for the electrical connection of the relay coil the fingers 23 and 24 are used as anchors in the insulating material this function will be later on described with fig7 9 and 10 first it will be noted that these fingers result from semi circular cuts 25 26 and 27 fig3 and 4 and that other cuts 28 and 29 fig7 are made in the electrode in relation to the dimensions of projections 30 and 31 so that these projections exactly house in the corresponding cuts 28 and 29 the projections 30 and 31 are made of the insulating material at the bottom of each slot provided in walls 12 and 13 of support 1 fig2 for housing a contact spring electrode assembly in fig8 it can be seen a slot 32 at the bottom of which is the projection 30 the contact spring.