12V dc ac electric motor and old 220V current generator alternator

In this experiment I connected a small 220 volts alternator with an electric motor 12-230 volts AC-DC. The alternator was in use at a professional school Italian in the 50s and 60s.
Alternator: 220V - 240W - 50Hz - rpm? mod. pn5 Rome 1951.
Motor: 230 volts of a vacuum cleaner, the motor starts to rotate with 6 volts, both in direct current and in alternating current.
Battery 12V 10Ah - Bench grinder 220V 160W - Bulbs 2x 40W + 5x 25W 220V. The system run time with a 12 volts 10 Ah battery is about 20 minutes. This video is just for vision, has no purpose of practical use.

Видео 12V dc ac electric motor and old 220V current generator alternator канала Electric Experiments Roobert33