Abstract: In a direction display device which indicates direction by an arrow, a translucent direction display portion is formed on an outside housing. A rotation roller is disposed within the housing to be rotated by a motor. Inclined stripes are formed on the rotation roller, and therefore, by the drive force of the motor, the rotation roller rotates in the housing. As a result, the inclined stripes on the rotation roller move in the direction display portion of the housing as if the stripes move in the same direction as the arrow direction. By indicating a direction by the arrow of the direction display portion and the direction of a movement direction of the inclined stripes of the rotation roller, visibility of the indicated direction is increased. In the case that the display device has two arrow portions, the arrow portions to be used is reversed from one to the other and the direction of movement of the inclined stripes is reversed also.

Abstract: A clamping device especially adapted for use with an automotive body or frame straightening device is disclosed wherein at least two clamping members each having a clamping jaw section at one end thereof and a clamping guide section at the other end thereof are held together by a retaining ring in such a manner that they may pivot about a ball disposed inwardly thereof, and within the space defined by the clamping guide sections is disposed a tapered member which has an outwardly tapered outer peripheral surface. When the tapered member is drawn or pulled outwardly, its tapered outer surface forces the clamping guide sections to move away from each other while forcing the clamping jaw sections to move toward each other, whereby the strong clamping force is produced.