Abstract: In an incinerator having a housing structure defining a combustion chamber provided with a pair of side walls, a stoker disposed in the combustion chamber between the side walls and an underfire air system, an overfire air system generally consisting of a first means for injecting a variable volume of air under pressure into the combustion chamber at a level above the stoker, and second means for injecting a variable volume of air under pressure into the combustion chamber at a level above the stoker, a second variable volume air injecting means including means for conveying air supplied to the combustion chamber in heat exchange relation with at least one side wall of the combustion chamber for cooling such wall.

Abstract: An assembly for feeding refuse from a charging chute of an incinerator onto a stoker disposed in the incinerator comprising a stationary support means disposed adjacent the stoker, stationary guide means mounted on the support means in alignment with the stoker, a first movable support means mounted on the stationary support means, movable along a line of travel disposed in alignment with the stoker and having a first ram means operable to advance refuse received from the charging chute toward the stoker upon advancement of the first movable support means, a second movable support means mounted on the first movable support means, movable along the line of travel and having a second ram means operable to advance refuse received from the charging chute toward the stoker upon advancement of the second movable means, means for displacing the first movable means along the line of travel, and the first movable means having means for engaging the second movable means whereby upon advancement of the first movable mea

Abstract: A stoker comprising a housing defining first, second and third plenum chambers, a grate unit disposed at an upper end of each plenum chamber, a first residue removal means disposed at a lower end of the first plenum chamber, a second residue removal means disposed at a lower end of the second plenum chamber for receiving residue from the first residue removal means and a third residue removal means disposed at a lower end of the third plenum chamber for receiving residue from the second residue removal means.

Abstract: An apparatus for burning waste refuse having a heterogeneous composition comprising means defining a combustion chamber having an inlet for charging waste refuse therein and an outlet for discharging combustion gases therefrom, means disposed within the combustion chamber for agitating waste refuse charged therein, means for sensing the temperature differential of combustion gases emanating from the burning waste refuse disposed on the agitating means, between spaced points along the path of flow of the emanating combustion gases, and means responsive to variations of the sensed temperature differential relative to a preselected temperature differential for adjusting the operation of the agitating means.

Abstract: A tube assembly for superheater unit of a steam generating system comprising a bank of superheater tubes rigidly secured together and a screen tube adapted to be connected to a source of coolant disposed adjacent the length of and attached to an end tube of the bank of superheater tubes.

Abstract: An apparatus for charging refuse into an incinerator comprising a housing and a drum disposed in the housing for rotation about a horizontal axis, the housing having an inlet communicable with an elevated mass of refuse for guiding the refuse into the housing and depositing it on a periphery of the drum and an outlet communicable with an incinerator at a lower level, and the housing having a wall spaced from the periphery of the drum defining a passageway intercommunicating the inlet and outlet of the housing whereby upon refuse being guided through the inlet and deposited on the periphery of the drum and the drum being rotated, the refuse deposited on the periphery of the drum will be conveyed through the passageway by the drum and discharged through the housing outlet.