Patent for a new and improved mud-scraper. This design consists, "with a vehicle, of the transverse shaft geared to one of the wheels and provided at one of its ends with spiders, having its arms provided with perforations, the approximately U-shaped scrapers arranged to straddle the wheel, and the L-shaped plates or knees having one arm secured to a scraper and the other arm provided with perforations adjustably connected to the spider" (lines 88-102).