Abstract: An electrostatic generator comprises a series of smooth uncovered electrically conductive elements which are interconnected mechanically by links so as to form an endless chain for carrying charge to a high voltage terminal. Electrical insulation by which each of the elements is insulated from its neighbours is arranged to be stressed in compression so as to take advantage of the better compressive properties generally exhibited by appropriate insulating materials. The elements may be elongated and arranged transversely of the travel of the chain, such that the chain resembles a caterpillar track.