With an original Model A wiper, (electric or vacuum), and trying it out while driving in an all day heavy, storm driven rain, you may ....... or may not ....... find it helpful to pull up under a gas station with an overhead canopy, and take out a roll of paper towels to first clean the windshield using a small bottle of "Windex" and followed by an application of "Rain-X".
But ......... just a friendly Model A thought for driving in a rain storm !