National Geographic : 1920 Aug
NEGTIGUT IGNITIO SIMPLY PUSH THE BUTTON WHEN YOU WANT TO START AGAIN. How the Automatic Switch Insures Your Ignition You forget to turn off your ignition often enough to create a real danger to the system; but for getting makes no difference to the Connecticut system. When the motor stops, the continued flow of the current heats the thermostatic arm of the Connecticut Automatic Switch, causing it to expand, throwing off the plunger and breaking the circuit. This thermostatic arm is composed of bronze welded to steel. The bronze expands more rap idly under heat than the steel, and this uneven expansion automatically snaps off the plunger, stopping the flow of current immediately. It is a simple mechanism, infallible in operation, and requires neither thought nor attention-ex cept to push the plunger back when you want to start again. The automatic switch thus permanently protects both coil and battery. Therefore the Connecticut system, free to deliver full current, furnishes a hot, fat, eager spark at all motor speeds. MOTOR RUNNING, CURRENT FLOWING. THERMO STATIC ARM IN POSITION MOTOR STOPPED, EXPANSION OCCURRING INTHERMO STATIC ARM,WHICH ISJUST ABOUT TORELEASE PLUNGER. PLUNGER OFF, CURRENT STOPPED-PUSH IT BACK It should be on the next car you buy. WHEN YOUWANT TO START AGAIN CONNECTICUT TELCOMPANY Meriden Connecticut "Mention The Geographic-It identifies you"