Abstract: A process and apparatus reversibly converts an ellipsoidal stage lamp into a projector for projecting light with special effects onto a stage. The apparatus includes a replacement for the shutter section, which is a cabinet for disposition within the ellipsoidal stage lamp to replace the shutter section. The cabinet defines a first opening disposed along and around the optical axis of the ellipsoidal stage lamp and which is open to the base and lamp having a filament. The cabinet has one open side for permitting the sliding insertion of a drawer. The drawer, which is mountable to the cabinet, has a second opening disposed along and around the optical axis of the ellipsoidal stage lamp and open to the base and lamp when the drawer is inserted to the cabinet. A movable projector plane is mounted to the drawer across the second opening for insertion to the cabinet at the open side.

Abstract: A process and apparatus reversibly converts an ellipsoidal stage lamp into a projector for projecting light with special effects onto a stage. The apparatus includes a replacement for the shutter section, which is a cabinet for disposition within the ellipsoidal stage lamp to replace the shutter section. The cabinet defines a first opening disposed along and around the optical axis of the ellipsoidal stage lamp and which is open to the base and lamp having a filament. The cabinet has one open side for permitting the sliding insertion of a drawer. The drawer, which is mountable to the cabinet, has a second opening disposed along and around the optical axis of the ellipsoidal stage lamp and open to the base and lamp when the drawer is inserted to the cabinet. A movable projector plane is mounted to the drawer across the second opening for insertion to the cabinet at the open side.

Abstract: A gobo having linear motion is inserted to the narrow iris slot of a conventional ellipsoidal stage light. The linear moving pattern includes a housing, a drive roller and a motor, a return roller, and an endless pattern loop. The housing has a narrowed end for protruding into the instrument at the iris slot and holding the return roller on one side of the light. The housing has a broad end for mounting outside of the ellipsoidal stage light for holding the drive roller and motor at the other side of the light. The broad end of the housing has two spring-biased hinged clamps for clamping the linear moving pattern into a single unitary linear moving pattern iris insert. A first motor clamp holds the drive roller and motor in place. A second pattern clamp tensions and dimensions the endless pattern loop for extension into and out of the iris slot of the ellipsoidal light. The endless pattern loop is first threaded to the return roller and the return roller mounted to the narrow end of the housing.

Abstract: A self-extinguishing torch for use in theatrical environments includes a supporting basket having a support for torch fuel. The supporting basket includes a screen providing side ventilation for containing torch fuel on the support and admitting air through the side ventilation to burn torch fuel. The supporting basket has fuel, which provides torch lighting. A container having an opening for receiving, surrounding, and containing the supporting basket has a handhold remote from the container for permitting the container to be held by a hand. A normally closed top is provided for moving from an open position to a closed position over the container with the supporting basket therein. The normally closed top is biased to the open position when the supporting basket protrudes from the container at the normally closed top.