THE TYLER AUTOMATIC SWITCH.
A is a wooden cylinder, twelve inches long and six inches in diameter. B is brush made of three layers of copper, and is screwed down at lower end, No. 1, so as to work as a spring. C is piece of copper one-half inch wide fastened around cylinder, and comes in contact with B, so as to make one feed wire run to switch. D is piece of copper running one-third of the way around, and comes in contact with another brush, E. Then fasten a small piece of wire from C to D that carries the current to No. 2, while E is on copper. The other feed wire is direct from main circuit to window. F is pulley wheel running to reducer. No. 3 is fuse blocks, which can be used and are much safer than without. This switch cost me twenty-five cents. Of course, I am my own electrician. It will cost no more to any one, as it is very simple.