Abstract: An amusement apparatus including a user-operated and controlled apparatus for self-infliction of repetitive blows to the user's buttocks by a plurality of elongated arms bearing flexible extensions that rotate under the user's control. The apparatus includes a platform foldable at a mid-section, having first post and second upstanding posts detachably mounted thereon. The first post is provided with a crank positioned at a height thereon which requires the user to bend forward toward the first post while grasping the crank with both hands, to prominently present his buttocks toward the second post. The second post is provided with a plurality of rotating arms detachably mounted thereon, with a central axis of the rotating arms positioned at a height generally level with the user's buttocks. The elongated arms are propelled by the user's movement of the crank, which is operatively connected by a drive train to the central axis of the rotating arms.

Abstract: A method and apparatus for printing indicia on a porous sheet including an enclosure in which a negative static pressure is produced to cause air flow through a perforated work surface of the enclosure. The porous sheet to be printed and an overlying stencil sheet are arranged and held firmly on the perforated work surface by the negative static pressure in the enclosure. In one embodiment, all but selected areas of the perforated work surface, the porous sheet and the stencil sheet are masked to block air flow through the masked areas and concentratingly direct the air flow through the selected areas. A liquid printing medium is sprayed so that it is carried by the inflowing air onto the areas of the porous sheet which are exposed by the stencial sheet cutouts.

Abstract: A method for making an irregularly configured endless metal frame and fixedly attaching a sheet of flexible material thereto.