type and comprises a plastic base 16 on which conducting copper segments 17 are mounted such assembled commutators are well known in the art fig2 is a schematic side view showing an upper half of the rotor 11 of the motor 1 the commutator illustrated comprises segments 17 which are fast on a cylindrical base 16 each segment 17 extending for slightly less than 120 degrees around the shaft 12 the armature 13 comprises three coils of insulating resin coated wire each coil 18 being wound on a respective shaped arm 19 when seen in radial cross section of a support which is fast on the shaft 12 electrical connection between a coil 18 and a respective pair of commutator segments 17 is made by looping a turn of the wire 20 around a tang 21 integrally formed at the adjacent end of the segment 17 when the wire passes from one coil to another at the start and finish of winding the coils the ends of the wire are looped past a common tang which will serve to hold the ends fast to secure the wire 20 in mechanical and electrical connection with the segments 17 the tang 21 is bent over using a hot forging process which per se is well known in the art referring to fig2 a piece of solder wire 22 is placed beneath the tang 21 adjacent the wire 20 conveniently a length of.