Abstract: A chain lock for securing doors having a chain connected to a first mounting member at one end and to a locking member at the other end, the locking member for inserting through an eye defined on a second mounting member attached to the door.

Abstract: An improved stub shaft to disc connection for a butterfly valve is provided having a valve disc with a hub. The valve disc is adapted to be rotated between an open and closed position. A valve disc seat is adapted to engage the valve disc in the closed position. A shaft is joined to the valve disc to permit torque to be transmitted to the valve disc from a point remote therefrom. The shaft is joined to the valve disc by forming the valve disc with a portion of increased thickness (hub) relative to the main portion of the disc. The portion of increased thickness is formed at a point adjacent the circumference of the disc. A hole (bore) is then machined into the portion of increased thickness parallel to the disc. The bore consists of a single larger aperture contiguous with a plurality of smaller apertures, the plurality of smaller apertures, positioned at a point more distal the circumference of the disc than the single larger aperture.

Abstract: A portable dock consisting of a raised V-Shaped structure, with an essentially rectangularly shaped horizontal base with attached spaced apart angled platforms situated above the base, said dock adapted to reside substantially underwater. The raised V-shaped structure has an open medial channel which enables the platforms to act as cradle members to engage opposite sides of a watercraft, as the watercraft to be docked is maneuvered into the open medial channel bow first. As the watercraft advances from the rear to the front of the dock, along the long axis of the base, the bow rests upon and is elevated by the incline of the platforms. The weight of the watercraft, as it rests upon the platforms, serves to anchor the dock to the bottom of the lake bed, thereby rendering both the watercraft and the dock stationary.The invention may be easily placed into the body of water and removed therefrom by hand, as it is of such a size and weight so as to allow easy manual transport.