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: An ornamental snap-together light fixture in which spring means associated with a bulb socket not only holds the socket in a metal cup, but also secures the metal cup to a base member. In addition, the metal cup has a circumferential ridge which is spaced a substantial distance from its bottom end, and an ornamental member positioned upon the base member and about the cup is held in place between that ridge and the base member, through indirect action of the spring means of the socket.

Abstract: Novel apparatus for mounting a luminaire to a ceiling is disclosed. A base including a pair of downwardly extending side portions is rigidly mounted to the ceiling. Each side portion has a first post and a second post extending outwardly therefrom. A bracket mounted to the luminaire has a pair of upwardly extending members adapted for mounting to the side portions. Each member has a first slot and a second slot for receiving the first post to rotationally support the member in the second slot in a preliminary mounting position in which appropriate electrical connections are made. The bracket is rotated to receive the second post into a third slot. Support means receive the first and second post from the second and third slots, respectively, to vertically support each member on the respective posts in a final mounting position.

Abstract: A height adjustable suspension for supporting a fixture frame from an overhead location has a drive shaft rotatably supported in the frame and extending parallel to the length dimension of the frame, a motor supported in the frame and operatively connected with the shaft for rotating the same, a plurality of longitudinally spaced winding drums mounted on the shaft for rotation therewith and separate suspension cables associated with each winding drum. Each cable is mounted on the overhead location and has an end directly affixed to the respective drum. The course of each cable from the overhead location to the respective winding drum is, at all points of the cable, perpendicular to the length dimension of the frame.

Abstract: A see-through housing fabricated from tamper-proof material is pivotally mounted relative to the undersurface of a flat mounting plate the dimensions of which are such as to exceed the spacing between pairs of adjacent joists or studs in the walls or ceiling of a building, said plate being anchored to said joists or studs by means of fastener elements which are, preferably, thereafter rendered irremovable. An opening is provided within the plate for providing access to an electrical outlet or the like which projects through said opening, said outlet being visible when enclosed within the housing.

Abstract: A ceiling sweep fan includes a motor depending from a ceiling mount, the motor being supported for rotation on a vertical axis, a plurality of radially extending air impeller blades supported for rotation by the motor, means for providing illumination mounted in radial alignment with the motor, and a shallow bowl-shaped light transmission member covers the motor and the illumination means.

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 frame attached to a ceiling supports a horizontally reciprocal carriage. A light fixture is supported by the carriage. A flexible conductor has one end connected to the fixture and an intermediate portion extending around a part of said carriage so that movement of the carriage in one direction lowers the fixture and movement in an opposite direction elevates the fixture.

Abstract: The present invention is directed to a universal ceiling lighting fixture and more particularly is directed to a lighting fixture adapted to be mounted above a ceiling made of gypsum board, acoustical tile or the like, the fixture being characterized by its ability to support reflectors of a variety of diameters. More particularly, the fixture includes novel mounting means which extend over the reflector receiving aperture, the mounting means being adjustable in accordance with the diameter of the reflector intended to be used with the fixture.

Abstract: A mounting assembly for a chandelier-type light fixture to be suspended by a chain or the like from a ceiling. The mounting assembly comprises an outlet box open at its bottom adapted to be mounted in an opening in the ceiling, and a crossbar extending beneath the bottom of the outlet box, the ends thereof extending beyond the sides of the outlet box for engagement with the ceiling. Fasteners interconnect the crossbar and the outlet box, the fasteners being capable of developing a clamping force for holding the crossbar in spaced relation relative to the outlet box clamped against the ceiling. A support extends down from the crossbar and has a head at its lower end adapted to be engaged by and to support the chain, the bottom of the head being at a predetermined distance below the crossbar. A canopy is provided beneath the outlet box for covering the bottom thereof, and a ring is provided for releasably securing the canopy to the head of the support.

Abstract: An improved up-and-down pulley device for suspending height adjustable lamps or any other article requiring a regulated descent. The device comprises an adjustable friction system for the lamp descent, wherein the suspension wire winding drum is free to rotate in the wire return or rewinding direction, while its rotation, around a central stationary axis, is braked and regulated by the friction system in the direction of wire unwinding and therefore of lamp descent, rotation being controlled by a ratchet wheel of special structure. The device has a silent, precise and adjustable operation and a compact, sturdy structure comprising a limited number of elements.

Abstract: A mounting for a lighting fixture is disclosed which includes a T-shaped bracket and a mating plate designed to engage the T-shaped bracket in two positions. The T-shaped bracket is fixed to a desired mounting surface and the mating plate is fixed to the end of a lighting fixture intended to engage the mounting surface. The mounting plate and bracket cooperate to suspend the fixture in a first position below and spaced from the mounting surface while wiring is installed and in a second position against the mounting surface after installation is completed.

Abstract: An arrangement for the recessed mounting of an enclosed light fixture housing having an open end with a flange formed about the periphery thereof in an aperture defined in a planar member, such as a ceiling, includes a slotted aperture defined in the side wall of the housing with ratchet teeth formed therealong adjacent the slotted aperture, a support frame mounted behind the ceiling and including an aperture dimensioned similarily to and aligned with the aperture in the ceiling and a resilient mounting clip attached to the support frame and extending into the aperture. The free end of the mounting clip is dimensioned for receipt in the slotted aperture of the housing side wall upon insertion of the housing into the aligned ceiling and support frame apertures. Shoulder portions adjacent the free end of the clip engage the ratchet teeth to removably lock the housing in position in the ceiling.

Abstract: An industrial luminaire comprising a central housing formed of two identical parts, a capacitor cover pivotally coupled to one side of the housing having a capacitor therein, a ballast and ballast cover on the other side of the housing, a lamp socket coupled to the bottom of the housing, and a top cover pivotally coupled to the top of the housing. Separation of the capacitor and the ballast from the heat generating lamp provides longer life and higher efficiency for these components. The pivotal coupling of the top cover and the capacitor cover provide for easy access during maintenance. The top cover is coupled to a fixed overhead support over the center of gravity of the entire structure providing a balanced, reduced stress connection.

Abstract: An improved operating room surgical lamp having a concave reflector housing, an inverted conical reflector disposed therein and one or more circular fluorescent lamps disposed within the concave reflector and about the inverted conical reflector. The surgical lamp of the present invention provides an evenly illuminated light field having a centrally illuminated portion of even greater illumination.

Abstract: An improved light dispersion system for fluorescent lighting fixtures includes a plurality of horizontal diffuser panels suspended below a light source. An upper set of diffuser panels are spaced apart to define a light passageway. A lower diffuser panel is positioned in registration with the light passageway for intercepting and reflecting incident light. Both the upper and lower diffuser panels further scatter transmitted light by refraction. A chromatic lens filter is selectively insertable within the light passageway for modifying the resultant color spectrum.

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: An arrangement for mounting an enclosed light fixture housing having an open end with a flange formed about the periphery thereof, in recessed fashion in an aperture defined in a planar support member having inner and outer surfaces, with the flange of the housing engaging the outer surface, includes a side wall of the housing defining a T-shaped slotted aperture with the longer leg of the T extending from the shorter leg toward the open end of the housing, and having ratchet teeth formed along an edge of the longer leg of the T, and a mounting clip receivable in the slotted aperture from the interior of the housing after the housing is received in the aperture in the support member. The mounting clip is captured in the slotted aperture and slidable toward and away from the inner surface of the support member.

Abstract: A lighting fixture adapted to be mounted on a ceiling by attachment to an outlet box in the ceiling. The fixture comprises a pan having an upwardly extending rim and a crossbar attached to the bottom of the outlet box in a position extending horizontally across the bottom of the box. The rim of the pan is adapted to be attached to at least one end of the crossbar for mounting the pan adjacent the ceiling.

Abstract: An adjustable light fixture recessible in a ceiling for directing light at various angles includes a housing with a lamp assembly mounted therein. The lamp assembly comprises a reflector having a conventional bulb socket attached pivotally to a plate having spaced apertures. Resilient tracks, mounted at one end to the base of the housing are received in the apertures provided in the plate, rendering the plate slidable along such tracks. The tracks are each provided with a series of protrusions engagable with rollers each of which are mounted on the plate adjacent the spaced apertures to form a series of overcenter arrangements whereby the position of the plate and the lamp assembly may be adjusted. Stops are provided at the free end of each track to limit the movement of the lamp assembly therealong. However, the stops may be bypassed to permit complete removal of the lamp assembly from the housing.

Abstract: An improved, quick connect and detach light fixture assembly is provided which allows easy pivotal attachment and release of a light fixture for ease of fixture installation or replacement. The assembly includes cooperating back and fixture-supporting plates with the latter being pivotally and detachably connected to the wall or ceiling mounted back plate. The pivotal connection between the plates is preferably accomplished by a pin secured to the back plate and a corresponding pin-receiving slot or eye provided with the shiftable fixture-supporting plate. The fixture is maintained in its operative position by means of a screw releasably interconnecting the plates.

Abstract: A device for mounting and supplying electrical power to a luminaire. The device includes three connectors mounted in a housing. The connectors on the device electrically interconnect two cables and a lighting circuit in the luminaire. Power is applied from one cable through the device to the luminaire and to the other cable which supplies power to another luminaire. A bracket on the top of the housing for mounting the device to a building structure is adjustable to compensate for fixture balance and the weight of the cables connected to the device. When the luminaire is releasably attached to the device, one of the connectors on the device engages a mating connector on the luminaire for energizing the lighting circuit. The luminaire can be detached from the device without interrupting power to other luminaires in the same circuit.

Abstract: A device for mounting and supplying electrical power to a luminaire. The device includes two connectors mounted on opposite sides of a housing which is mounted on the luminaire. The connectors on the device are wired to electrically interconnect two cables and a lighting circuit in the luminaire. Power is applied from one cable through the device to the luminaire and to the other cable which supplies power to another luminaire. A bracket on the top of the housing for mounting the luminaire in a building structure is adjustable in a direction extending linearly between the connectors to compensate for fixture balance and the weight of the cables connected to the device.

Abstract: A rotating lamp fixture including a spherical shell member rotatably supported on a vertically extending support member, a platform disposed in the shell member, a drive motor mounted on the platform, a stationary gear secured to a vertical support member, the shell member being rotatably mounted on the support member, the motor being drivingly connected to the stationary gear and being effective when energized to rotate the platform and the shell in which it is supported about the vertical support member, and a light bulb socket suspended within the shell member.

Abstract: A fluorescent lamp fixture having mounting brackets provided with keyhole-shaped openings for accommodating mounting screws. The mounting brackets have cover flaps for concealing the screws, and the flaps contain locking tabs for preventing dislodgment of the brackets from the screws.

Abstract: An adapter for mounting in wallboard-type or other planar ceilings so as to permit the utilization of light fixtures which hitherto could only be used in inverted tee-bar types of suspended ceilings. The adapter includes a plurality of frame members, one for each edge of a ceiling opening, each frame member being configured to have a flange for abutting against the lower ceiling surface and a shoulder thereabove. Corner members for each corner of the adapter have a planar wall and a flange extending from the lower edge thereof. The corner members are transversely adjustable relative to the frame members. In use the ceiling panel is clamped between the flanges of the corner members and those of the frame members and the light fixture is positioned in the opening so that the peripheral lower edge of the fixture rests on the shoulders of the frame members.

Abstract: Indoor lighting fixture providing semi-indirect symmetrical light distribution. The fixture, which is adapted to be positioned adjacent the ceiling of the room comprises a high intensity gaseous discharge lamp mounted at its base on the ceiling and extending downwardly into a box-shaped reflector open at its top with reflective sides and a diffuser panel at its bottom. Positioned in the reflector and surrounding the lower portion of the lamp is a dish-shaped semi-transparent reflector which reflects a portion of the incident light toward the ceiling and transmits a portion of the light to the area below the fixture. The arrangement is such that direct and indirect light is distributed by the fixture while shielding the light source from direct view of the room occupants to avoid glare.

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 decorative drop ceiling including a panel having a plurality of openings therein disposed between a source of light and an area to be illuminated. A light transmissive lens is disposed in each of the openings. Each lens has a predetermined thickness dimension, which is not dictated by the thickness of the panel. The lower face of each lens is co-planar with the lower surface of the panel. The periphery of the lens is recessed, and fasteners, disposed in the recess, fix the lens in the opening.

Abstract: A light fixture mounting device is disclosed wherein a service outlet box has a mounting adaptor with light fixture suspension means providing temporary suspension of a light fixture during installation and connection of the electrical wiring and subsequent maintenance.

Abstract: An overhead lighting fixture with the housing having an open bottom, a resilient hinge pivotally fastening a first side of the light transmitting panel to a first side of the housing adjacent the open bottom of the housing, and a latch assembly for detachably securing a second side of the light transmitting panel to a second side of the housing adjacent its open bottom. The second side of the housing is an elongated extruded side panel member having a light housing web portion and a latch web portion that lies in a plane approximately 90.degree. thereto. The latch member has a J-shaped configuration with a head, a body, and a foot. The head of the latch member has a circular lateral cross-section that is matingly received in a groove formed in the latch web portion. This structure permits the latch member to be pivoted laterally into and out of engagement with a lip extending along the length of the light transmitting panel that rests in the curved hook surface of the J-shaped latch member.

Abstract: A rotating hanging lamp which is constructed of a fixed member and a movable member with the exterior surface of the movable member being substantially greater than the external surface of the fixed member. The fixed member is divided into an upper section and a lower section with the movable member located therebetween. The movable member is rotatably supported upon the fixed member by means of a low frictional wheel assembly which connects with an annular inwardly extending flange mounted upon the movable member. The annular inwardly extending flange also connects with a drive wheel which is rotatably mounted upon the fixed member. The drive wheel is rotatably driven by a motor which is mounted upon the fixed member.

Abstract: A pivot support element is fixed in position to extend essentially vertically, and carries a horizontally projecting pivot pin. The movable pivotable member on which the weight is suspended is pivoted and connected to the pin by means of a plate-like pivot rod secured laterally to the pivotable member, so that the pivot pin will form the pivot axis for the plate-like element. The pivot pin additionally has fixedly attached thereto a link element, such as a short plate-like member to which a balance rod is pivotally attached which is connected with an intervening spring, typically a compression spring, to the weight-supporting member. Two plate-like pivot rods may be used, one on either side of the support member to provide for balanced attachment. The entire assembly is readily encapsulated in shell-like housing halves, to be essentially dust and contamination-proof, with minimum handling in assembly, or for cleaning and maintenance.

Abstract: The present invention relates to a device for moving lamps used in clinical situations.The moving device has rails and a support which is movable on these rails. The rails are buried in the ceiling and the lamp is suspended from the support. The lamp is movable across an opening provided in the bottom of the rails. A belt is stretched across the total area of said opening to completely seal the opening; the downward support for the lamp passes through this belt; and the belt is movable together with the movement of the lamp.

Abstract: The light fixture herein can assume multi-angle relationships to the ceiling grid system within a suspended ceiling system. The light fixture is suspended from the ceiling by support posts and the support posts are movable relative the grid system of the ceiling system and the back of the light fixture to permit the light fixture to be moved to a number of different locations.

Abstract: A self-contained fluorescent lamp fixture for installation in association with both flush and recess mounted electrical outlet boxes which permits selective adjustment of the fluorescent lamp fixture through a substantial arc and which readily facilitates retention of the fixture in the adjusted position. The fixture includes a body cover which is adapted to receive a conventional fluorescent tube as well as the other operative components. This cover includes a pair of opposed, generally centrally located arcuate slots and is mounted betwen upper and lower fixture collars by a pair of threaded fasteners. The fasteners pass between the collars through the arcuate slots whereby the cover may be selectively rotated in a plane normal to the axis of the fixture. A flat outlet box cover plate is mounted to the uppermost end of the upper collar by these same threaded members. The cover plate, in turn, includes means for conveniently mounting it to an outlet box for supporting the entire fixture.

Abstract: A decorative antique comprising a variety of lamps and lights fitted to stovepipes so as to be lighted electrically.