44 Mr. G. Fuller on a Water-spray Influence-machine. 



This enables the depth of the ring below the nozzle to be 

 adjusted, which is of importance, as the greater the head of 

 water employed the greater must be the distance between the 

 two, as the ring should be fixed at the point where the small 

 streams of water break up into spray. The receiving vessel, 

 C, .may be of glass or metal, as the former material, from its 

 constant state of moisture whilst the machine is working, 

 seems to conduct the electricity as effectually as the latter. 

 In the author's model they were at first of glass, but one of 

 them having been broken they were replaced by receivers of 

 zinc. The receivers are supported by pins, p,p, which are 

 soldered to them at one end, whilst their free ends rest in 

 holes drilled in E and F. To make the receiver self-acting 

 they are hung so that when a leaden weight, w, is fixed, as 



shown in sketch, the vessels being empty, they would turn in 

 the direction of the arrow if they were not prevented by stops 



