Abstract: A lighting appliance of the type designed for enabling the luminous beam produced to be variously oriented, comprising: a) a lamp body (13) with a reflector (20), b) first means (14) for swivelling the lamp body (13) around an first axis (15) pointing substantially towards the area to be illuminated, c) second means (16) for swivelling the lamp body (13) around a second axis (17), lying crosswise to the first axis (15), designed for adjusting the tilting angle of the reflector (20). The first swivelling means (14) consist of a turning pair (22, 23) formed by two component kinematic parts (22, 23). A first part (22) consists of two opposite concave tracks (26a, 26b) with opposite concave sides facing one another and towards said first axis (15). These two tracks (26a, 26b) are elastically deformable and thrusting against the second component part (23) of the turning pair (22-23) so as to generate friction.

Abstract: A lamp having a base housing with a member for connection to a lamp-holder, and a light source extending generally axially from the housing. The lamp includes a device connected to the housing suitable for screening the dispersion of the light radiation in undesired directions. Such device preferably comprises a hood with a generally cylindrical grid arranged coaxially to the housing and enclosing the light source. Desireably, the grid is formed from a plurality of substantially frusto-conical rings axially superimposed, joined and regularly spaced by a plurality of axial ribs.

Abstract: A recessed lighting fixture with a device for quickly mounting or dismounting the lamp is disclosed. The device comprises an annular body having a front edge defining an aperture with dimensions generally greater than the diameter of the lamp. Flexible retaining members extend radially from the front edge at the aperture, suitable for holding the body at the lamp laterally. At least a pair of radial projections extend internally from the edge and define a span having a width generally smaller than the diameter of the lamp, such that the edge rests against the radial projections and is biased against them by the flexible retaining members.

Abstract: An illumination device is disclosed which comprises a box-like body having a back wall and side walls extending from the back wall, an opening being formed in a wall opposite the back wall while a decorative image is reproduced on an inner face of the back wall. A light source extends interiorly to a frame delimiting the opening, the side walls having inner faces made of reflective material.

Abstract: A recessed lighting fixture with a device for quickly mounting or dismounting the lamp is disclosed. The device comprises an annular body having a front edge defining an aperture with dimensions generally greater than the diameter of the lamp. Flexible retaining members extend radially from the front edge at the aperture, suitable for holding the body at the lamp laterally. At least a pair of radial projections extend internally from the edge and define a span having a width generally smaller than the diameter of the lamp, such that the edge rests against the radial projections and is forced against them by the flexible retaining members.

Abstract: In a linear structural member for the formation of reticulated structures intended to bear lighting means and the like, to form furnishing and for other uses, possessing two mutually spaced longitudinal expanded parts and a connecting part between the latter, said member comprises a single continuous section possessing, as a connecting part, a continuous laminar connecting baffle between the said two expanded parts.

Abstract: Flanking structural shapes and mechanical connection means between shapes disposed two-by-two in flanking relationship and two-by-two in abutting relationship make up structures for mechanical support and electrical connection, at low voltage (for example at 24 Volt), between abutted shapes. The web of the shapes having transverse bars at the ends, is defined by shearings in the same web. The bars being able to cooperate with coupling means comprise a plate body made of insulating material, shaped according to the cross-section dimensions of the structure and forming support edges adapted to receive, on their sides, the bars of the shapes to be coupled. Clamps for mechanical and electrical connection are developed with U-shaped cross-section for embracing the bars brought near the abutted shapes and the body thickness along the support sides, and are secured to the body.

Abstract: A clamp for joining hollow tubular members in end-to-end abutting relationship has two stiff elements shaped in correspondence to opposed inner wall surface of the end cavities of the tubular members and is provided with both elastic shims and a threaded screw for urging mutual separation between the elements. One of the elements has two truncated right circular cylindrical pegs projecting from its surface for entering corresponding holes in the walls of the tubular members. The threaded screw has a conical tip that enters a conical concavity in the opposite element to lock the elements against relative longitudinal movement when expanded within the tubular members.

Abstract: A track lighting system including remote on-off control of the lighting element, carrier-current transmitter for transmitting carrier-current signals over power lines, a bipolar rail for the electric power connected to the signal transmitter, a lamp holder comprising a first section cooperating with the rail, an intermediate section housing, a receiver for receiving the carrier-current signals and connected to a power switch, and an end section for supporting a lighting element, and selecting apparatus housed in the intermediate section for adjusting the receiver so that the receiver is responsive only to one among a plurality of the carrier-current signals sent over the power lines through the bipolar rail. The selecting apparatus includes a comb connection associated with the receiver and a movable contact for selecting the one signal to which the receiver is to be responsive.

Abstract: Between at least two stiff elements, that are shaped in correspondence to opposed inner wall surfaces of the end cavities of the components to be connected, elastic means are interposed in order to urge mutual separation between the elements; connecting means are provided on said elements, which means are constructed to cooperate with the components to be connected for securing against axial separation, and means are further provided that are constructed to assure between the two said elements a rigid arrangement of maximum separation after installation within the cavities of the abutting components.

Abstract: An assembly with a lamp to be embedded, comprising: a member with annular development with a cylindrical wall and two flanges, one inside and the other outside suitable to place itself against the mouth of the embedding seat; in said member a housing suitable to receive with elastic yielding the lamp to be embedded; appendixes rising from said annular member towards the inside of the embedding seat, which engage spring type means for retaining said member within the embedding seat; and in the lamp a spherical surface that is received in said housing and allows the lamp orientation.

Abstract: A support assembly includes a plurality of linear supports each of which is formed of at least three longitudinal members juxtaposed in a predetermined substantially parallel relationship to one another networked together with brace means. At least two linear supports are connected by way of a set of curved connecting bars to give a shaped overall structure. In other aspects of the invention mounting brackets for use in connection with, for example, the inventive assembly are disclosed. One bracket is for mounting atop a triangular section while another bracket is substantially triangular at one end and extends laterally to a common support point distal to a substantially vertical supporting member.