Abstract: A ventilation fan that functions as a wheel for movements. The generally cylindrical fan housing is pivotally coupled to a triangular handle. The handle may be manually grasped to roll the fan towards an operative position. The handle may be positioned in a temporary storage position, and an inverted, operative position where the drum is elevated for stable use. The drum-shaped fan rolls on its own, and the fan radius becomes the rolling radius. The preferred handle is attached to suitable bearings secured to the guards at the center of each side of the fan. When the destination is reached, the handle is deployed upside-down to function as a support stand, and the fan remains in a stable orientation without moving or shifting its position during operation.

Abstract: A conveyor element tensioning mechanism which is formed by a pair of like tensioning supporting opposite ends of an idler roller. The tensioning devices each include a slide member with a cylindrical pin which is supported within a cylindrical guide opening. The cylindrical pins have a studs extending radially therefrom which extend through a radially opening slots formed along the lengths of the guide openings in order to prevent the cylindrical pins from rotating. The studs support manual operators which may be actuated to move the slide members into a conveyor element tensioning position. During actuation, the manual operators engage an adjustably positioned reference surface so that the resulting tension in the conveyor element may be easily altered.

Abstract: A modular conveyor system is disclosed as including an unique supporting framework featuring a horizontally elongated spine (12); legs (32) for supporting spine (12); posts (34) upstanding from legs (32); and an elongated rail (18) supported by posts (34) and arranged above and in a horizontally offset relationship relative to spine (12). Spine (12) serves to support one or more modular conveyor units (66), rail (18) serves to support one or more diverse art devices (48) required to be associated with conveyor units (66); and posts (34) serve to support a side panel (24) to extend lengthwise of spine (12).

Abstract: A device for mooring small boats includes a rigid tubular sleeve with outwardly flared ends. A stretch cord located in the sleeve has attaching members in the form of hooks or the like at each end which extend at least partially outside the associated sleeve end. To moor a boat, one hook is pulled outwardly, stretching the cord, and fastened to a boat rail or cleat. The other hook is similarly fastened to a ring or eye-bolt on the dock. The stretch cord urges the hooks toward the sleeve so that the hooks and flared sleeve ends cooperate to form grips; and the sleeve acts as a spacer to space the boat from the dock.