Abstract: A method and apparatus is disclosed for connecting a drive axle to a propeller. A drive member is configured to mount on a drive axle, a tubular member is coupled to the propeller, and a resilient members is configured to be positioned between the drive member and the tubular member. The drive member has an axis and includes a plurality of radially outwardly extending ribs. The tubular member is coupled to the propeller and has an axis and a plurality of radially inwardly extending ribs. The resilient members has an axis and is configured to be positioned between the outwardly extending ribs and the inwardly extending ribs. Furthermore, the resilient members is mounted coaxially with the drive member and the tubular member.

Abstract: A combination tool comprises an elongated lever having a handle at one end, two divergent fingers at the other end, and an aperture between the two ends adapted for engagement with a nut. One of the fingers includes a distal end and claw in spaced relationship thereto which cooperate to provide a fulcrum for movement of the lever, thereby to facilitate the removal and replacement of nuts which are locked on a threaded shaft by a locking member having bendable tabs projecting outwardly therefrom.

Abstract: A device for sensing a substance on the surface of a liquid of the type including a float and a sensing element mounted on the float for extending into the liquid, includes a plastic encasement enclosing all portions of the element to be exposed to the liquid for preventing interference with the operation of the element by substances in the liquid other than the substance to be sensed.

Abstract: A composition of matter is provided of alkaline earth oxides in an elastomeric matrix to be used for stabilizing the electrical and electronic properties of electrical and electronic devices.