Abstract: A support housing for a vehicle headlamp that includes a pair of pivotally interconnected ring members adjustable about a pair of mutually perpendicular pivot axes by a pair of vertically oriented adjustment screws which are located to the rear of the headlamp and within the peripheral confines of the headlamp lens.

Abstract: A support housing for a vehicle headlamp that includes a pair of pivotally interconnected ring members adjustable about a pair of mutually perpendicular pivot axes by a pair of vertically oriented adjustment screws which are located to the rear of the headlamp and within the peripheral confines of the headlamp lens.

Abstract: A trunnion degree marker and reset stop for a luminaire indicating the angle of aim and providing a positive stop to facilitate resetting after service. It comprises a flat plate having a trunnion bolt hole, an arcuate slot around it with angle markings, and a screw extending therethrough for locking the plate to the trunnion bracket independently of the trunnion bolt. The plate has a foot protruding at an angle and turned toward the housing for engaging a shoulder stop cast as an integral part of the housing.

Abstract: A plaster frame for mounting a lighting fixture in recessed fashion in a ceiling comprises a main body portion including a rectangular, planar member defining an aperture therein, the aperture being similarly dimensioned to the ceiling aperture in which the lighting fixture is to be mounted. Hanger bar brackets are integrally formed with the planar member at breakaway junctions along opposite, first sides of the planar member. The hanger bar brackets are adapted to receive hanger bars for mounting the plaster frame between spaced joists supporting the ceiling. Each hanger bar bracket is removable from the planar member by bending at the breakaway junctions. The hanger bar brackets are reattachable to the planar member along opposite, second sides thereof by means of bendable, spaced tabs formed on the brackets receivable in similarly spaced apertures defined in the planar member.

Abstract: A mounting system has a box which is open at one end and a plate dimensioned to cover the opening. A disengagable pivot is positioned at one edge of the box and plate. A hooking mechanical connection is located at the opposite end of the box and plate. The light fixture is attached to the system and the system is in turn attached to an overhead structure. The plate and box engage each other at the pivot so that the plate does not initially cover the open end of the box. Thereafter, the plate may be rotated on the pivot and be secured against the open end of the box by the hooking mechanical connection.

Abstract: A luminaire of otherwise conventional design for street or roadway outdoor lighting which employs as its structural housing, members fabricated of suitable plastic material. The slipfitter structure and the base member on which the weighty electrical components are mounted is made of material having superior tensile strength such as cast aluminum. The aluminum base member is fitted closely and secured to the plastic housing. Thus, the portion of the luminaire most subject to stresses is aluminum while for the larger exterior areas suitable molded plastic may be used. The contours of the aluminum base member form an arched structure for supporting the comparative light weight but physically bulky upper plastic housing. By this construction, the plastic housings are placed in compression but all tensile forces are applied to the base member. In this way the plastic housing merely forms a protective shroud for the luminaire.

Abstract: Luminaire assembly with readily detachable parts. Luminaire comprises top ballast housing, intermediate ballast and slipfitter mounting plate, and lower optical assembly with associated slipfitter housing attached to ballast housing and mounting plate by readily detachable clamp band. Optical assembly, which includes dome-shaped reflector and lamp mounting assembly, is suspended with associated slipfitter housing from lug on mounting plate when clamp band is detached.

Abstract: The present invention relates to a lighting fixture adapted to be mounted directly to the ceiling of a room or the like. A characterizing feature of the invention lies in the provision of a frame structure adapted to seat against the upper surface of the ceiling, the frame structure including means in the nature of clips which are shiftable radially into complementary guideways formed in the frame, the clips in the course of such outward radial movement including tangs which embed themselves in the ceiling structure proper to securely mount the fixture at a desired position in the ceiling.

Abstract: An adjustable-length light fixture having a standard fitting for connection to an incandescent light socket and providing for convenient conversion of a light fixture from incandescent use to use with another type of light source, such as fluorescent. The adjustable-length fixture includes an extensible member with two telescopically engaging portions and a positive action latch to inhibit further extension of the member once a desired length has been selected. The latch includes a resilient latch member on one telescopically engaging portion, and a number of rachet-like recesses on the other of the telescopically engaging portions, the recesses being so shaped as to inhibit further extension of the length of the fixture, but to facilitate shortening of the length as needed for installation purposes.

Abstract: A generally planar, access limiting closure plate is provided in an outdoor lighting luminaire to close off the ballast and optical cavity portions of the luminaire from the exposed slip fitter mounting device at the end of the luminaire housing in order to prevent small animal from entering or nesting in the electrified portions of the luminaire.

Abstract: A lighting fixture for use in therapeutic treatment having a lamphousing with a plurality of lamps located therein which are simultaneously moved within the lighting fixture lamp housing for adjusting the focal point of the lamps by moving a single control handle which is also used to adjust the position of the lamp housing itself. The single control handle is detachable so that it can be sterilized and thereby allowing for sterile conditions to be maintained each time the lighting fixture is used.

Abstract: An adjustable lamp is provided (FIG. 1) comprising a main arm 12 which is pivoted to a base at one end and carries the lamp housing at the other end. The angular position of the arm relative to the base is controlled by a link also pivoted to the base and to a sliding connection on the arm. There is adjustable frictional resistance to sliding, and additionally the link is spring urged to counterbalance the increasing turning moment as the arm moves towards the horizontal position.

Abstract: An electric lamp which provides substantially uniform lighting throughout a work area. The area extends from directly under the lamp a substantial distance beyond the shade. A faceted reflector provides the desired distribution of the light.

Abstract: A lamp holder comprising an insulated casing formed in two halves between and by which are located and clamped a mounting socket to receive the base or cap of a lamp. A pair of contacts is associated with said socket and a mounting stirrup cooperates with the casing to permit pivotal movement of the casing relative to the stirrup about an axis transverse and preferably perpendicular to the axis of the mounting socket.

Abstract: A telescoping, tiltable light fixture. The fixture comprises a housing for securing to an electrical outlet box and a suspension member secured to the housing. A lamp socket is secured to a socket holder which is slidable and tiltable in the suspension member. Slidable contacts for connecting the socket to an electrical power source are provided in the suspension member and lamp holder.

Abstract: A retractable searchlight for vehicles of the type which is movable from a working position to a retracted position includes at least one searchlight supported by a supporting device mounted upon a shaft which is rotatably driven by a motor. The supporting device is formed of at least two members, a first of which is secured to the shaft for movement therewith and a second of which is secured to the searchlight and is mounted so as to be displaceable relative to the shaft. Between the first and second members a disengagement means is located for enabling the second member connected to the searchlight to be displaced with the first member between the working a retracted positions during normal operation and for disengaging the first member from the second member when the searchlight encounters a resistance so that continued movement of the searchlight is interrupted thereby precluding injury to the arrangement or persons standing nearby.

Abstract: A light fixture having securing means for lamp globes, each shaped as two resilient arms, one arm being adapted to engage the globe inside of its opening and the other arm to engage the globe internally, thus locking the arms when the globe is in place.

Abstract: Mounting device for rotatable adjustment of asymmetric reflector within luminaire housing to vary the light distribution from the luminaire. The mounting device includes a plurality of brackets circumferentially spaced around the lower portion of the dome-shaped luminaire housing for supporting the circular rim of the asymmetric reflector, which is formed with a corresponding plurality of recesses for clearing the brackets when the asymmetric reflector is inserted in or removed from the luminaire housing. Adjustable clamps are arranged adjacent the brackets for securing the reflector in the desired rotational position.

Abstract: A ceiling mounted support structure for mounting light fixtures, louvers, and the like, including at least one support piece mounted or supported by at least one building ceiling support, the piece having an elongate slot therein in which an enlarged end of a flipper bar rotates. The flipper bar rotates upwardly to permit the fixture part to be supported to pass upwardly therepast and rotates downwardly to provide the in-place support for the fixture part.

Abstract: A weather-proof light fixture includes a quick connect modular ballast assembly which is separably connected to a light reflector member mounted on a support surface. A housing containing the ballast assembly has a lamp receptacle extending from a sidewall thereof. The light reflector member includes a neck portion the end of which is butted against the housing, receiving the lamp receptable therein. Outwardly projecting fastener arms extending from the neck portion each having a hollow cavity therein are rotated over posts protruding from the ballast housing sidewall, and located adjacent the lamp receptacle. Slots contained within the fastener arms receive screw fasteners extending from the posts to secure the lamp ballast housing and reflector member in a joined condition. A gasket disposed between the end of the neck portion and housing side wall, renders the light fixture waterproof.

Abstract: An adjustable flood light enclosed in a waterproof casing is mounted for unlimited rotation between spaced support legs fixed to a base. The light source within the enclosure is carried by a support leg through which its wiring passes and it does not rotate with the enclosure. The enclosure may be clamped to one or both support legs to secure it in any desired angular adjustment.

Abstract: A light fixture for horizontal or wall task surfaces for office and like interiors adapted to be used with an ambient light system which fixture utilizes a plain rectangular elongated housing for a fluorescent lamp with simplified end brackets which permit the fixture to be mounted directly or indirectly on screens or partitions at any desired elevation, and providing angular adjustment. Direct glare is avoided and veiling reflections reduced by angular selection, lens selection, and recessing the lens within the housing. The adjustment brackets provide precise angular incremental adjustment but are designed to slip if excessive force is exerted on the fixture to avoid damage to the fixture, partition, or screen.

Abstract: A lighting fixture is removably supported within a coffer of a modular suspended ceiling structure by two arms which are retractably mounted at each end of the fixture for movement between extended positions in which they are supported on the top surface of the surrounding ceiling structure and retracted positions to permit vertical lowering or upward insertion of the fixture into the ceiling.

Abstract: A weatherproof terminal or junction box structure for a luminaire adapted for connection by a mast to a building or pole. The structure enables access to the terminal or junction box area for wiring and inspection without disassembly of the mounting of the luminaire to the mast and without the necessity of disassembling the luminaire itself. The mast telescopes within a channel receiver of the luminaire housing for mounting purposes. The mast is slotted at its entry end, the slot being encompassed within an access opening which may be covered by a wire way cover. Removal of the cover exposes the wiring for connection and inspection. With the cover in place, recessed within the receiver, the connection of mast to luminaire produces a weatherproof mounting. A second embodiment omits the need for the cover by normally setting the entry end slot rotated out of registration with the channel opening. Access to the slot may be had by rotating the luminaire about the axis of the channel receiver.