Discussion on “electrical precipitation — Theory of the removal of suspended matter from fluids,” (strong), “theoretical and experimental consideration of electrical precipitation,” (Nesbit), and “practical applic

W. S. Franklin: Let me ask Mr. Bradley how to get rid of the material which accumulates in the pipes. Linn Bradley: This is a matter which presented some difficulty. If a liquid it will run off, and if it is a mixture of liquid and solid, it will not run off unless it is of proper consistency. If you have a dry dust it is easy enough to shake it off. You have to design your plant to suit the problem. Fumes that are all dry can be handled in about the same way; that is, if they are of the same physical character. If they are of a granular character, they must be operated in a different way from fumes which are of a fine formation.