Arrangement for tapping battery bank alternately from opposite ends

Abstract From the Canadian patent

Disclosed herein is a direct current motor control or energizing circuit comprising a direct current motor, a bank of series connected batteries which bank includes opposite ends, and a switching arrangement for electrically disconnecting and connecting the bank to the motor for energizing of the motor at selective levels of potential and so that successive energizations involve alternate connection of the motor from the opposite ends of the bank to at least one of the batteries.