Abstract: A roller for a roller hearth furnace, the roller including a water-cooled, rotatably mounted carrying axle on which a plurality of support rings are arranged at a spacing from one another. In the axial region between and next to the support rings, the carrying axle is provided with insulation composed of a fiber material and configured with protection of the outer circumference of the fiber material from the environment. In the case of insulation constructed from ring-shaped punched parts, the insulation arranged in the axial region between and next to the support rings is composed of circular or ring-shaped punched fiber parts. The protection is configured as ring-shaped insulating disks composed of a more resistant material than that of the punched fiber parts, and at least one punched fiber part is provided in each case between two insulating disks.

Abstract: A roller for a roller hearth furnace, the roller including a water-cooled, rotatably mounted carrying axle on which a plurality of support rings are arranged at a spacing from one another. In the axial region between and next to the support rings, the carrying axle is provided with insulation composed of a fiber material and configured with protection of the outer circumference of the fiber material from the environment. In the case of insulation constructed from ring-shaped punched parts, the insulation arranged in the axial region between and next to the support rings is composed of circular or ring-shaped punched fiber parts. The protection is configured as ring-shaped insulating disks composed of a more resistant material than that of the punched fiber parts, and at least one punched fiber part is provided in each case between two insulating disks.

Abstract: A light for room and building illumination, the light comprising an illuminant, including a circuit board including a carrier material, an insulation layer applied to the carrier material at least on one side, conductive paths applied to the insulation layer, and at least one LED that is arranged on the insulation layer and functions as the illuminant, at least one light permeable cover arranged subsequent to the LED in a light exit direction, a light housing in which the circuit board is arranged, characterized in that the circuit board is a metal core circuit board which forms the light housing.

Abstract: A light for room and building illumination, the light comprising an illuminant, including a circuit board including a carrier material, an insulation layer applied to the carrier material at least on one side, conductive paths applied to the insulation layer, and at least one LED that is arranged on the insulation layer and functions as the illuminant, at least one light permeable cover arranged subsequent to the LED in a light exit direction, a light housing in which the circuit board is arranged, characterized in that the circuit board is a metal core circuit board which forms the light housing.

Abstract: A lamp holder for receiving a lamp including a LED, the lamp holder including locking cams radially extending from a lamp base; a central heat conducting element; a lamp holder housing component that is attachable by fasteners at a light fixture component; a central cut-out for receiving the lamp base, wherein the cutout is enclosed by a lamp holder housing wall which is provided with insertion grooves which are oriented substantially perpendicular to the light fixture component; locking grooves respectively originating from the insertion grooves which locking grooves are oriented parallel to the light fixture component for receiving the locking cams extending from the lamp base; and at least one spring element, wherein the holder housing component including the locking grooves is liftable against a spring force of the at least one spring element through an insertion and rotation movement when inserting and locking the lamp.

Abstract: A lamp holder for receiving a lamp including a LED, the lamp holder including locking cams radially extending from a lamp base; a central heat conducting element; a lamp holder housing component that is attachable by fasteners at a light fixture component; a central cut-out for receiving the lamp base, wherein the cutout is enclosed by a lamp holder housing wall which is provided with insertion grooves which are oriented substantially perpendicular to the light fixture component; locking grooves respectively originating from the insertion grooves which locking grooves are oriented parallel to the light fixture component for receiving the locking cams extending from the lamp base; and at least one spring element, wherein the holder housing component including the locking grooves is liftable against a spring force of the at least one spring element through an insertion and rotation movement when inserting and locking the lamp.

Abstract: A lamp socket for supporting a light source provided with an LED, the lamp socket including a cooling element; a socket housing which includes socket contacts for electrically connecting the light source; and a lamp base which supports an LED connected to a heat conducting element and is insertable in the socket housing and includes base contacts which are connectable with the socket contacts through a contact force for providing power to the LED, wherein the cooling element on the socket side is connected with the heat conducting element on the base side with a contact pressure that promotes heat transfer, wherein the contact pressure is provided through a pressing force in order for the cooling element to absorb heat generated by the LED, wherein the electric contact between the socket contacts and the base contacts is provided so that it does not provide forces opposite to the pressing force.

Abstract: A lamp socket for supporting a light source provided with an LED, the lamp socket including a cooling element; a socket housing which includes socket contacts for electrically connecting the light source; and a lamp base which supports an LED connected to a heat conducting element and is insertable in the socket housing and includes base contacts which are connectable with the socket contacts through a contact force for providing power to the LED, wherein the cooling element on the socket side is connected with the heat conducting element on the base side—optionally through a device that promotes heat transfer, such as heat conducting foil or heat conducting paste—with a contact pressure that promotes heat transfer, wherein the contact pressure provided through a pressing force produced through a suitable device in order for the cooling element to absorb heat generated by the LED during operations, wherein the electric contact between the socket contacts and the base contacts is provided through a contact con

Abstract: The invention relates to an assembly of a lamp and a lamp holder. The invention also relates' to a lamp' for use in an assembly of a lamp and a lamp holder. The invention further relates to a lamp holder for use in an assembly of a lamp and a lamp holder.

Abstract: A lamp base has a projection that carries lamp contacts and has an outer surface formed with retaining formations arrayed with irregular spacing. A socket forms a recess into which the projection can be inserted with play and apertures provided with contacts engageable with the lamp contacts. Retaining formations in the socket fit with the lamp-base retaining formations in only one defined angular alignment of the lamp base and the socket. The projection has a central plug projecting toward the socket and forming a lamp key coded for a predetermined lamp wattage. The socket has a hole corresponding to the plug and itself forming a socket key coded for the maximally admissible lamp wattage for the socket. The lamp base only fits into the socket when the lamp wattage indicated by the lamp key does not exceed the maximally admissible lamp wattage defined by the socket key.

Abstract: A device for holding a compact fluorescent lamp in a light fixture with a socket 10 and a lamp base is shown and described. The bayonet-type fixing of the lamp base in a socket 10 is effected by means of a plug-and-rotate motion. In order to give manufacturers of light fixtures the possibility of manufacturing light fixtures for lamps with a predetermined or maximally admissible lamp wattage, the invention proposes a key system with seven key pairs. Each key pair comprises a lamp key and a socket key and characterizes a predetermined lamp wattage. Concretely speaking, the socket key is a lug arranged in a hole and the lamp key is a plug corresponding to the socket hole with a outwardly open cutout. In addition, a key system for making predetermined lamp types recognizable is described.

Abstract: The invention relates to a lamp comprising a lamp bulb (2) and a lamp base (3), which lamp base (3) comprises a projection (4) located in a substantially central position of the lamp base (3) and extending in a direction away from the lamp bulb (2), at least one lock-engaging portion (6), and a substantially flat base surface (5) opposed to the lamp bulb (2) and surrounding the projection (4), characterized in that the at least one lock-engaging portion (6) is located on the edge of the base surface (5) surrounding the projection (4) remote from the central projection.

Abstract: The invention relates to a lamp comprising a lamp bulb (2) and a lamp base (3), which lamp base (3) comprises a projection (4) located in a substantially central position of the lamp base (3) and extending in a direction away from the lamp bulb (2), at least one lock-engaging portion (6), and a substantially flat base surface (5) opposed to the lamp bulb (2) and surrounding the projection (4), characterized in that the at least one lock-engaging portion (6) is located on the edge of the base surface (5) surrounding the projection (4) remote from the central projection.