Abstract: A method and apparatus retrofitted to a multiple-intertube pulverized-coal burner to reduce NO.sub.x emissions of roof fired boilers. An internal two stage process controls the amount of secondary air which flows to the burner. The first stage includes a secondary air damper and air flow station to regulate the amount of air which flows into a windbox of the burner. A baffle plate assembly which includes a plurality of baffle plates further limits the amount of air which flows to the core of the burner for combustion of the fuel. The baffle plates create a pressure drop within the windbox which forces or diverts a quantity of air to the periphery of the burner. The second stage includes an outlet formed in the hot primary air duct, an air plenum which communicates therewith, and a plurality of interjectory air ports which correspond with the burners in number and position along a front wall of the boiler and which communicate with the air plenum.

Abstract: A hearth particle bed incineration furnace is provided in which the hearth particles form a sloped layer bed which moves in the incinerating furnace without being fluidized. The furnace is structured so that the combustion gas is prevented from flowing upward through the inlet for the materials to be incinerated. The structure for preventing the backflow of the combustion gas includes a sidewall which is connected to the incinerated materials inlet, baffles and a member which restrains the upward backflow of combustion exhaust gas. This restraining member is made up of an air intake opening and the air introduced therein is heated through heat exchange with a combustion gas and introduced into the combustion chamber. This allows the amount of air to be introduced in the combustion chamber to be increased and the backflow of combustion exhaust gas to be reduced or eliminated.

Abstract: The low-emission swirling-type furnace is designed to burn organic fuel and it can be most advantegeously used for dust combustion.A low-emission swirling-type furnace, according to the invention, comprises a combustion chamber (1) with a prismatic dry-bottom hopper (5) having a slot mouth, and an undergrate blast inlet means (7) disposed thereunder. The furnace includes at least one burner (2) formed by at least a pair of ducts (2a,2b ) lying one above the other and intended for supplying the air-fuel mixture. The ducts (2a, 2b) are each provided with a device (3, 4) for controlling the "air/fuel" ratio, ensuring such a ratio between the amount of air and the amount of fuel in each of the ducts (2a,2b ) that for the overlying duct (2a), this ratio turns out to be invariably higher than for the underlying duct (2b).

Abstract: A lighting system for a vehicle including a pair of supplemental side lights located adjacent to the front and sides of a vehicle beneath the main headlights thereof, the side lights being angled to project the central rays of their beams outwardly from the central ray of the beams of the main headlights; a parabolic reflector operatively associated with each side light; and a battery with electrical components coupling the main headlights and the side lights, the electrical components including a common single pole single throw-type switch directly coupled with the main headlight and the side lights for ensuring that the side lights are only activated when the headlights are activated, a common single pole triple throw-type turn switch directly coupled to the side lights for indicating a left turn and a right turn by actuating one side light concurrently to the exclusion of the other side light, a single common single pole single throw-type dimmer switch directly coupled to the turn switch for increasing and

Abstract: An illuminated display box includes one or more display sides. Each side includes identical panel support units connected to angled sidewalls of a bracket on the opposite sides of the display. Each support unit is an integrally extruded U-shaped plastic member, and includes an attachment leg and a panel support leg connected by a U-shaped base. The attachment leg has an edge slot extended over the angled sidewall and fixedly secured by a lanced portion of the angled sidewall. The support leg has an open slot to receive a dual panel unit including superimposed transparent panels between which a display poster is held. The panel units are formed of a flexible and optically clear plastic and have a width in excess of the distance between the slots of the two side panel support units. Insertion of the panel edges into the slots creates a curved panel unit. The display box may have a single display panel unit or a plurality of display panel units arranged to form a plurality of sides of the display box.

Abstract: A light source device has an elongated rectangular boxed-shaped reflective case with a bottom wall, frame walls which protrude forward from this bottom wall to form an open front surface. A plurality of terminal plates are disposed on the bottom part of this reflective case, and LED chips are bonded onto these terminal plates. Lead terminals extend from the terminal plates and penetrate and reach the outer surface of one of the frame walls. Thickened parts with increased thickness are formed on the inner surface of the frame walls at positions corresponding to these lead terminals.

Abstract: A cyclone furnace combustion system and method in which a burner is mounted relative to a cyclone furnace for discharging a relatively fine particulate fuel in an axial direction into the furnace. Relatively coarse particulate fuel is discharged into the furnace in a tangential relationship thereto and air is provided in the furnace to support combustion of the fuels.

Abstract: A vehicular head lamp has a head lamp unit tiltabaly attached to a vehicle body by means of two distance adjusters including adjusting shafts and one rotational support section. The two adjusting shafts are coupled to the vehicle body via a bracket of a synthetic resin which has two nuts that are to be respectively fitted over the two adjusting shafts, and projections protruding toward the vehicle body are formed on nut-forming portions and are engaged with attachment holes formed in the vehicle body to secure the bracket to the vehicle body.

Abstract: An indicator unit for a motor vehicle, in particular a so-called complementary rear stop light displaying a narrow strip of light, has a plurality of light sources aligned with each other in an elongate narrow housing. Each light source emits light in a given emission field. The unit includes optical means for redirecting the light emitted by the sources in a general emission direction, and an optic having optical elements for diffusing the output light of the unit. The redirecting means comprise lenses focussed in the vicinity of the respective light sources and directly exposed to the radiation emitted by the respective sources in a central part of their emission field, together with a cylindrical mirror which reflects towards the lenses the light emitted by the sources in at least an edge portion of their emission field.

Abstract: A light source assembly has a housing and a bulb unit disposed in the housing. The housing is made of an electromagnetic shielding material. The bulb unit is composed of a reflector made of an insulating material, a bulb accommodated in the reflector, a connector connecting the bulb to a control circuit and fixing it to the reflector and light transmitting windows formed in the reflector. The bulb is disposed in the reflector so as to cross the axis of the light transmitting windows. The connector projects to the outside from the reflector to be coupled or decouple with a connector of the control circuit.

Abstract: A process of waste incineration, with heat recovery and reduced emissions of acid gases and particulate comprising a reduction of acid gases and particulate by mixing recirculating low temperature flue gases flowing out from the heat recovery section, with high temperature flue gases obtained from incineration. Said mixed flue gases are subjected, prior to heat recovery, to particulate separation. Moreover, the low temperature flue gases may be deacidified. Preferably, the reduction is enhanced by reacting the high temperature flue gases, mixed with a cold flue gas recirculation stream drawn downstream the heat recovery section, with an alkaline reagent, in order to eliminate the acidic gases. A waste incinerator is disclosed, which is combined with an acid gases and particulate removal plant, which is provided between the incinerator itself (2, 6) and the boiler (7).

Abstract: A frame for a recessed light fixture having a opening for mounting a light reflector of a first size. A second opening of a smaller size is defined within the first opening so that a light reflector of the smaller size is mountable at the second opening should a smaller reflector be desired.

Abstract: A stand which will hold an apparatus for comminuting cremation remains. The stand includes a support for the comminuting apparatus and built in vents which communicate with a blower motor to draw in all of the resulting dust and other contaminants resulting from this process. A series of filters are placed in communication with the vents to trap all pollutants.

Abstract: A truck is parked adjacent a coal boiler ash recovery unit and includes a first inlet pipe provided to receive ash from the recovery unit and an outlet pipe provided to convey dust from within the storage chamber of the truck to a bag house where the dust is loaded onto another truck. Water spray may be provided within the storage compartment of the first-mentioned truck to moisten the captured material to reduce dusting.

Abstract: An air damper assembly for a coal-fired furnace in which a damper sleeve extends between two spaced walls adjacent the furnace in a manner to define an air inlet. A threaded support member is connected to the damper, and a threaded shaft is in threaded engagement with the support member. Rotation of the shaft causes corresponding movement of the support member, and therefore the damper, to vary the size of the opening and therefore the amount of air introduced into the furnace.

Abstract: A thermal dechlorinating apparatus for collected ash, having a vertically elongated cylindrical apparatus body, a collected ash inlet and a collected ash outlet which are provided on the apparatus body and spaced in a vertical direction thereof, an inlet port for heated air provided on the portion of the apparatus body between the inlet and the outlet, an exhaust gas outlet provided on the portion of the apparatus body above the collected ash inlet, a rotary shaft provided along the axial direction of the apparatus body, a screw provided on the rotary shaft, and heating means provided on the portion of the apparatus body between the collected ash inlet and the collected ash outlet. Heated air is led into the apparatus body through the heated air inlet port. A stirred fluidized layer is formed in the portion of the apparatus body above the heated air inlet port, and a moving layer is formed below the heated air inlet port.

Abstract: A method and apparatus are provided to control the burning of a lean hydrocarbon containing gas stream under stable conditions using a combination of control logic and hardware. Temperature within the combustor is controlled by using a plurality of staging valves that adjust the amount of oxygen and auxiliary fuel supplied to the combustor burner. Oxygen level is controlled by using actuated butterfly valves that control the flow of primary air to the combustor. The system has pressure control valves for anticipating and compensating for pressure changes and resulting air flow changes as well as temperature monitors and transmitters for anticipating and correcting temperature drops.

Abstract: When burning solid fuels in a combustor, which operates with a circulating fluidized bed, substantially oxidizing conditions are maintained in the lower parts of the combustion chamber and approximately stoichiometric conditions in the upper parts of the combustion chamber, and afterburning of the flue gases separated from the bed particles is carried out.

Abstract: A truck is parked adjacent a coal boiler ash recovery unit and includes a first inlet pipe provided to receive ash from the recovery unit and an outlet pipe provided to convey dust from within the storage chamber of the truck to a bag house where the dust is loaded onto another truck. Water spray may be provided within the storage compartment of the first-mentioned truck to moisten the captured material to reduce dusting.

Abstract: A conveyor for waste has a waste feed shaft which is laterally connected to a horizontally divided conveyor channel. A screw conveyor being drivable by a motor is located in the longitudinal direction of the conveyor channel. The conveyor channel opens into a housing, in particular into a pyrolysis reactor, which by way of example is operated in conjunction with a low-temperature carbonization combustion process. In order to easily eliminate blockages of the screw conveyor, a unit formed of the screw conveyor and the conveyor channel is disconnectably secured to the housing and is removable from the housing through the use of a traveling mounting. A method for inspecting the contents of a conveyor channel receiving waste and discharging into a housing, especially a pyrolysis reactor, includes disconnecting the conveyor channel from the housing, driving the conveyor channel away with a traveling mounting, and opening the conveyor channel.