Abstract: A method of improving the control of a rotary cutting machine is disclosed. The cutting element of the rotary cutting machine being a filament which is rotated at high velocity under the control of a motor, such as powered by a battery or gasoline. The invention provides within the lower rotating head of the rotary cutting machine an optical source which illuminates the filament such that the distal rotating end of the filament provides a visual indication to an operator of the location of the rotating cutting element. In an embodiment of the invention the electrical power for the optical source is provided by providing an electrical generator within the rotary cutting machine such that for example the rotor is within the rotating head and the stator within the upper body of the rotary cutting machine.

Abstract: Apparatus for supporting an audio/video system, the system including a thin screen video display unit, video components operatively coupled to the display unit for generating video signals displayable by the unit, and audio components for generating audio signals, includes an elevator mechanism for the display unit and an exterior housing. The exterior housing includes a top opening sized to permit upward and downward movement of the display unit through the opening. The video and audio components are fixedly mounted to, the housing. The elevator mechanism extends upwardly within the housing and comprises an elevator platform adapted to carry the display unit between a lower position where the display unit when carried by the platform is retracted into the mechanism and an upper position where the display unit when carried by the platform is deployed above both the elevator mechanism and the exterior housing.