Abstract: A photography stand system is disclosed assembled from elongate support members into either a tripod or framework structure. The elongate support members form the legs of the camera tripod, each assembled to a tripod platform by mating engagement of fittings into tracks formed in the elongated support members in order to be height positionable. Cameras and various photographic accessories may be mounted to the platform and secured to any adjusted position along the length of each of the support members by coupling fittings including T-bolts fit within the tracks in each of the tripod legs. The support members may also be assembled in end-to-end relationship by a coupling element secured in each end of the support members, and erected into a framework with the camera and various accessories similarly positionable along the length of any of the support members.

Abstract: An alarm light includes a lamp, an alarm, and an actuator moveable for actuating the lamp and alarm. The alarm is powered by pressurized gas for vibrating a chamber-sealing disk to emit a shrieking sound. The actuator is located adjacent to the tank and the bulb and includes a passage leading from the outlet to a disk located in the actuator. The outlet is in communication with the passage and gas is capable of flowing through the outlet, the passage, and an entrance to the chamber containing the disk when the valve is open. The disk is caused to vibrate thereby and emit a piercing sound.