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Show Windshield Wiper With Semi-Automatic Device My car had only the ordinary windshield wind-shield wiper operated by hand. This was rather inconvenient and tiresome, so I rigged up a semi-automatic attachment at-tachment which proved entirely satisfactory. sat-isfactory. I took about six inches of spring from an old shade roller and fastened it to the right side of the windshield. Then I fastened the other end to the knob of the wiper, regulating the tension so that the wiper would be pulled over quickly. A pulley lb the upper left-hand cor- c """" 11 j y 'windshield wiper I If -PULLEV LOOP FOR. HAND B Semi-Automatic Windshield Wiper; Which Does the Work Automatically Automati-cally and Costs Only a Few Cents. ner, through which is run a stout cord fastened to the knob, completes the device. When it rains 1 loop one end of the string around my hand, and when the windshield needs wiping wip-ing a downward sweep of my hand pulls the wiper over and when I let go the spring pulls it back again. The cost was only ten cents for the pulley. pul-ley. Dr. E. W. Henke, Newark, N. J., in Popular Mechanics Magazine. |
