Abstract :
G. G. Setterlund (nonmember) and R. R. Miille (Westinghouse Electric and Manufacturing Company, Lima, Ohio): Mr. Veinott is to be congratulated for developing a simple means of handling this vital subject. There is a great need for more specific information on blast tubes for cooling aircraft generators. This need was first emphasized when the early development of high-altitude brushes was delayed because such information was not available.
