Abstract: A city refuse incinerator provided with stoker type firing equipment for combustion of city refuse has gas injectors installed low on the inside of a furnace body to inject low temperature inert combustion exhaust gas, purified in a dust collector, so that a gas curtain is formed on the inner surface of side walls of the furnace by the low temperature inert gas, thus preventing the formation of clinkers.

Abstract: An inclined hearth incinerator for the incineration of municipal, and industrial/commercial solid waste optionally in conjunction with sludge, with a controlled amount of combustion air allows the even distribution of underfire air to an upper hearth of plural stepped hearths in the floor of the incinerator. A clean-out assembly includes a piston which automatically cleans out feed-tubes for combustion air. The feed-tubes are protected by being embedded in the hearth, or being disposed beneath the hearth. The piston and a ram on the hearth may be interconnected for reciprocation by an actuating means so as to provide synchronous to-and-fro movement of the piston and ram.

Abstract: A new and improved incinerator steam generation system subjecting to combustion debris such as municipal waste, utilizing the heat derived therefrom to produce steam for steam boiler, electrical generating facilities, heating facility for industrial or commercial plants, and so forth. This is provided with a series of boilers and controls, both manually adjustable and also automatic, whereby the possiblity of fire dangers are minimized, created temperature ranges of boiler gases are constrained to desirable limits, dump stack facilities are automatically controlled as to particular effectiveness for differing types of operating conditions, and where safety features are incorporated to shut down gas flow through the boiler during periods of boiler-water deficiency, excess steam generation relative to demand, and other conditions. Within the furnace area proper the pressure conditions are predetermined and are controlled during operation for desired efficiency, vapor removal, and materials' combustion.

Abstract: A new and improved incinerator steam generation system subjecting to combustion debris such as municipal waste, utilizing the heat derived therefrom to produce steam for steam boiler, electrical generating facilities, heating facility for industrial or commercial plants, and so forth. This is provided with a series of boilers and controls, both manually adjustable and also automatic, whereby the possibility of fire dangers are minimized, created temperature ranges of boiler gases are constrained to desirable limits, dump stack facilities are automatically controlled as to particular effectiveness for differing types of operating conditions, and where safety features are incorporated to shut down gas flow through the boiler during periods of boiler-water deficiency, excess steam generation relative to demand, and other conditions. Within the furnace area proper the pressure conditions are predetermined and are controlled during operation for desired efficiency, vapor removal, and materials' combustion.

Abstract: A burner for combusting particulate fuels comprises a combustion chamber fitted with a plurality of grates stacked in stairstep fashion, each having a downwardly sloping surface over which the fuel flows continuously as it burns. The grates may be horizontally adjustable to change the downward slope of the flowing fuel. Each grate rests upon supports projecting from opposite side walls of the burner. The supports extend beyond the downwardly sloping surfaces of the grates and beyond the forward edge of the fuel bed so that the flow of fuel is diverted by the supports away from the side walls of the firebox, creating air passages which allow air to flow directly to the flame. The burner is fitted with a hopper for receiving and containing the fuel with a baffle plate depending from it shaped to distribute the fuel across the width of the grate in a manner which promotes the flow of the fuel.

Abstract: A furnace for the conversion of trash and garbage into useful energy, in which use is made of a movable grating system over which the trash and garbage is advanced for passage through the furnace, the means for driving the grating being located outside of the furnace with a heat sink in between and which includes means for disconnecting the grating from the drive means without the need to gain access into the interior of the furnace.

Abstract: A method and means for burning corn and corncobs is described. The apparatus includes a conical or pyramidal shaped perforated floor having a central opening formed therein which is in communication with a first conveyor which supplies the material to be burned thereto. A second conveyor extends around the periphery of the floor for carrying away the ashes of the burned material. The first conveyor forces the corncobs or corn upwardly through the central opening to form a mound or pile of material thereon. The mound of material is ignited and air is forced upwardly through the perforated floor to enhance combustion so that the material is substantially completely burned. The products of combustion are passed upwardly through a heat exchanger and filtered through the material delivered to the first conveyor before being exhausted to the atmosphere.

Abstract: A controlled air incinerator having an increased capacity for burning waste material and having increased efficiency for completely burning all burnable waste material fed thereto. The controlled air incinerator, which is sometimes referred to as a "starved air" incinerator, requires accurate control of burning conditions so as to provide at all times a discharge of clean flue gases free from pollutants. In the present incinerator, means are provided for transferring the waste material therethrough while burning, the means causing the burning waste material to tumble within the combustion chamber and open up so as to expose to combustion air any unburned but burnable parts of the waste material whereby the oxygen of the combustion air will result in complete combustion.

Abstract: A method and apparatus for incinerating combustible materials wherein the movement of the material particles is controlled as they are moved over an arrangement of grate sections during combustion in relation to particle density so that less dense particles travel faster than more dense particles to provide for increased combustion efficiency. The grate sections are arranged in adjacent groups and in an alined, downstepped succession. Each grate section has a downwardly inclined, upper support surface and a reciprocating pusher block is moved an adjustable distance over an inlet end portion of the upper support surface of each pusher block to impart moving forces through the material in a pushing stroke that is substantially shorter than the full travel distance of the material along the associated grate section.