The motor of locomotive nr. 5
View from above with the brushes:
The locomotive had "nose suspended motors". This kind of transmission was used on trams and on electric locomotives with industrial use. The advantage was low costs, simplicity, good durability bat with power and speed limitation. The motor is suspended by the "nose" to the bogie and to the chassis with a spring, and the pinion of the motor is in contact with the pinion of of the axle. (source: Fullin Giovanni)
See the picture below.
The motor is supplied with 550 - 600 V DC.
The stator has 8 coils. The even and the odd coils were connected in series in separate circuits. One of these circuits is connected in series with the brushes which transmits the current to the rotor's coils. The motor is connected to the loc with two pair of cables. One pair is connected to the circuit of the stator and the other is connected to the circuit of the stator - rotor. The motor's cover is open on the top at the brushes. The speed is regulated with (tram type) resistances put on the roof of the loc.