Electric Whirl

This is to demonstrate the presence of electric charge over a charged body and its transfer by contact over the electroscope disc, The gold leaf is attached over a metal plate which is attached to an axle and a removable metal disc on top. The deflection of leaf may be seen by glass windows, one of which is sliding, fitted on a casted body 95 x 60 x 105mm approx, provided with teethed sheet metal, arc inside, a 4mm socket on one side.