Discussion on “the principles and systems of electric motor control” (Knight), New York, December 10, 1915. (see proceedings for December, 1915)

Bassett Jones: It seems to me that Mr. Knight makes many statements as though they were indisputable facts, that are really subjects requiring careful determination in each case of control application. My experience with controllers has led me to the conclusion that the question of copper vs. graphite contacts is of this nature. The answer, it seems to me will depend upon the mode of operation of the motor control and the character of its service. Nor do I believe that it is always essential that a multiplicity of separately operated contactors be employed. There are other statements in the paper which are open to the same form of question.