Abstract: A large arbor anti-reverse fly fishing reel provides by its handle a convenient variable drug control up to a present drag force. The drag knob is preferably designed as a four-vane propeller knob being arranged within a handle depression extending inside the spool. By means of a bayonet coupling, which also serves as a variable drag control device, the handle can be securely attached to the reel thereby locking the spool. The spool can be provided with omega-like perforations for a maximum stability, lightness and ventilation, said ventilation being optionally enhanced by an air turbine formed by said perforation and a portion of the frame and/or a portion of the handle extending inside the spool.

Abstract: A large arbor anti-reverse fly fishing reel provides by its handle a convenient variable drug control up to a present drag force. The drag knob is preferably designed as a four-vane propeller knob being arranged within a handle depression extending inside the spool. By means of a bayonet coupling, which also serves as a variable drag control device, the handle can be securely attached to the reel thereby locking the spool. The spool can be provided with omega-like perforations for a maximum stability, lightness and ventilation, said ventilation being optionally enhanced by an air turbine formed by said perforation and a portion of the frame and/or a portion of the handle extending inside the spool.

Abstract: A device which can be used on rotating visible surfaces of, for example, machines, appurtenances, vehicles, and fans, utilizes N light sources, evenly disposed on a flexible substrate, and connected by means of a driver to a microcontroller with an independent power supply. A synchronization sensor is connected to the microcontroller. The light sources may be LEDs-one- or three-colored (RGB). The synchronization sensor responds to gravity when mounted on a rotating surface, whose rotation axis is not perpendicular to the Earth's surface, or is actuated at a position relative to a given immovable point, provided the rotation axis is perpendicular to the Earth's surface. A light sensor is connected to the microcontroller, which in turn is connected to a control panel. Sensors and the control panel are disposed on the substrate. The microcontroller has a serial interface.