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It is the general object of my invention to provide a delayed action reversing switch, by which current may be caused to flow through an electric circuit in one direction for a certain period of time and may be caused to flow through said circuit in the opposite direction for another period of time but only after a predetermined neutral interval. A further object is to provide a switch in which the reverse operating period will always be in fixed proportion to the initial operating period, regardless of the length of the said initial period.
electric circuits, reversing switch, delayed action reversing switch
Electrical and Electronics
Goddard, Robert, "Delayed Action Reversing Switch" (1939). WPI Patents Collection. 58.