Abstract: A furnace includes a decomposition chamber configured to form a fire pit for controlled decomposition of combustible waste material, a preheat chamber connected to and located generally above the decomposition chamber, and an afterburn chamber operably connected to an outlet on the decomposition chamber. The decomposition chamber includes an inlet for allowing controlled input of air to the decomposition chamber to create an oxygen-starved environment. The outlet is positioned generally opposite the inlet on the decomposition chamber and adjacent the fire pit such that the gases from the preheat chamber and the decomposition chamber flow generally across the decomposition chamber and through the burning/decomposing waste materials in the fire pit. The afterburn chamber chamber operates with a vacuum such that the gases and vapors from the preheat chamber and the decomposition chamber are drawn through the fire pit such that they are treated by the hot decomposing matter in the fire pit.

Abstract: A solid fuel burning stove (10) includes a firebox (11) having an insulated bottom chamber in which fuel is burned. The bottom chamber includes an insulated bottom surface (72) and walls (18, 20, 22, 24) which provides for heat retention when fuel is burned therein thereby creating high temperatures. The bottom chamber of the firebox (11) is divided from a top chamber by a horizontally extending baffle (46) which directs flow of exhaust gases from the bottom to the top of the firebox (11). The exhaust gases are burned in the top portion of the firebox (11) by means of the heat generated within the lower chamber and the introduction of fresh combustion air. This fresh combustion air is drawn in through an orificed pipe (49) extending along the length of the firebox.

Abstract: An incinerator and method for burning both sorted and unsorted rubbish and refuse cleanly and efficiently. Rubbish is inserted in a non-clogging hopper where it is preheated and preliminarily combusted as it moves downwardly to a primary combustion chamber where air is added. A moving grate beneath the primary combustion chamber draws ashes and uncombusted materials downwardly away from that chamber. Gases of combustion are further combusted as they are drawn by the natural draft in the incinerator through a secondary combustion chamber and gas circulating and flyash collecting chamber before exiting through an exhaust. The natural draft through the incinerator is controlled by a series of movable baffles and doors.

Abstract: The specification discloses a compact, dense, economical, metal pellet for charging melting furnaces to recycle the metal and a method for making the pellet especially from scrap cans and pieces of scrap metal including borings, turnings, punchings, chips, shavings, and chunks. The pellet includes a container having compressed, permanently deformed sides and a quantity of compressed metal pieces therein which overlap and engage one another. The container sides include a plurality of folds, wrinkles and corrugations which tightly and firmly engage and clamp the metal pieces to retain them within the compressed container. The pellet may have open or closed ends since the clamping engagement of the metal pieces by the compressed container sides retains the pieces in either case.

Abstract: A material feeding device for storing and feeding material and especially granulated material such as sawdust, wood chips, nut shells, or corn cobs at a controlled rate. The device includes a hopper which is preferably tapered toward its outlet end and a drive assembly which revolves a radial rotor arm carrying a rotating agitator toward the material at a controlled rate for loosening of the material. The rotatable agitator has outward projections and extends through the hopper. Such revolution and rotation of the agitator prepares the material by release by loosening and moving the material in the hopper upwardly allowing it to fall freely downwardly under gravity through the hopper outlet. If desired, the direction of rotation of the agitator may be reversed to force the material downwardly. Revolution and rotation of the agitator may also be controlled with an adjustable brake assembly. The agitator may be heated to loosen it if the material to be fed is frozen.

Abstract: An incinerator and method for burning both sorted and unsorted rubbish and refuse cleanly and efficiently. Rubbish is inserted in a non-clogging hopper where it is preheated and preliminarily combusted as it moves downwardly to a primary combustion chamber where air is added. A moving grate beneath the primary combustion chamber draws ashes and uncombusted materials downwardly away from that chamber. Gases of combustion are further combusted as they are drawn by the natural draft in the incinerator through a secondary combustion chamber and gas circulating and flyash collecting chamber before exiting through an exhaust. The natural draft through the incinerator is controlled by a series of movable baffles and doors.