To the Editor of the "NonrH-Emma Day News"
'Sim,—Will one of your ingenious readers help me in' the following matter? In a small model which Tam making an electric-motor drives, two consecutive belts over varying: sized pulleys (to reduce speed) and causes a drum to rotate: I want to arrange so that the drum will return to its original position when th motor stops, but I cannot devise clutch to' do it. T have tried making the revolution of the drum wind up a weight, but I find tthe friction of the'belts and pull is so great that a heavy enough Weight is too heavy for the motor to lift, Tam, ete, Shanghai, Dee. 20, 1924,
Text read from the printed page and cleaned; old type leaves the occasional error.