[Chronoscopes]

Chronoscope d'Arsonval. A spring tension clockwork of about 10 min. duration puts a castle wheel into fast rotation, in which a pointer is snapping when the current is opened, so the clockface indicates the time datas. A graduation line of the scale corresponds to 5 sigma. As the pointer is adjusted to cero the datas can be read directly; 2,800 kg.

Chronoskop d'Arsonval