Patent for a new and improved washing machine. This design consists of "the rotating disk or circular-washboard, faced with radial ribs and operated by a crank which is supported in a plane parallel to the bottom of the box, so that the circular board shall rotate at a right angle thereto; the galvanized-sheet-iron inner box, made with a semi-cylindrical bottom to receive the circular wash-board; and the separate detachable wash-board, provided with a semicircle of radial ribs, and which fits into the sheet-iron box opposite to the circular rotating board" (lines 18-28).