Abstract: Disclosed is an AC electrical apparatus including a vibrating device and a mounting structure supporting the device. In the improvement, a resilient insulator is interposed between the device and the mounting structure so that vibrations are isolated from the mounting structure. In a highly preferred embodiment, the insulator has a disc-like component between a standoff spacer and the mounting structure. Another such component is between the mounting structure and the head of the bolt which attaching the device to the structure. And a tube-like component of the insulator is between the bolt and such structure.

Abstract: A lighting fixture has a lamp and a housing for a lamp ballast. In the new fixture for providing bilevel illumination, the housing also contains a control device comprised of a dual capacitor and a "random crossing" relay connected to the capacitor. A single electrical control wire is attached to the relay and extends from the housing to a control module for remotely controlling the level of illumination consumed by the fixture. In a system employing one or more of the new fixtures, the level of illumination provided by each fixture is controlled by applying a signal to the control wire and switching the relay independently of the instantaneous value of the voltage across the relay terminals. A new method for providing two levels of power to the fixtures (and, thus, two levels of illumination) is also disclosed.

Abstract: Improved lighting apparatus for illuminating roofs having characteristic disparate slopes. Such apparatus includes at least one housing secured along the top edge of such roof, preferably between adjacent pairs of decorative beams. The apparatus has an elongate light source therealong and a reflector to direct light toward two disparate-sloping roof sections for bright and even illumination. A shroud along the housing prevents glare beyond the lower edge of the roof. The housing is preferably movably mounted for easy servicing.

Abstract: An improved lamp-mounting elongate roof fixture having a support, a beam over the support and suspended above the roof, and a light source under the beam, and characterized by a mounting plate extending along the support and movably, preferably pivotably, attached to it in a manner facilitating relamping, a lamp socket mounted to the bottom of the mounting plate to support a lamp along an axis perpendicular to the plate, and a reflector and preferably a light-transmissive protective jar, in fixed position on the support. The lamp and reflector are positioned to cast direct and reflected light below the beam and across the roof to illuminate the roof brightly with improved evenness and reduced glare. The mounting plate pivots to move the lamp from its use position in the jar and adjacent to the reflector to a raised position for relamping.

Abstract: The improved bollard luminaire has an upwardly directed, elliptical main reflector and a lamp "nested" within such reflector and positioned at or near its lower focal point. An upper cone-shaped reflector receives light from the main reflector and directs it laterally through a transparent lens element. Such element provides a 360.degree. lateral light opening unobstructed by wiring, support posts or the like. Light reflected through such opening is relatively sharply focused along an axis about 70.degree. from vertical. Unreflected light from the lamp which "misses" both reflectors also provides a degree of "uplighting," often found useful for aesthetic purposes.

Abstract: A cut-off floodlight of the type having a straight light line, a reflector surface in a housing, and a light-emitting opening, and characterized by a reflector surface with a major portion parallel to the light line including a parabolic section on one side of the light line with its focus at and its vertex behind and to said one side of the light line to establish a main beam direction at an acute angle to the opening plane, and an opposite section on the other side of the light line to reflect light therefrom past the light line onto the parabolic section so its secondary reflection off the parabolic section will be close to the main beam direction.