Incinerator and cremator
OwnerDavid R. Brookesinventor
Life of this patent
Estimating the term…
Abstract
The cremator disclosed is of the kind in which reduction burning takes place in a coffin chamber, followed by oxidation burning in an afterburner chamber. It is also of the kind in which partly cremated embers can be moved to an ember-reducing location to make room for another coffin to be admitted to the coffin chamber. The disclosure shows the ash removal port in the side of the cremator, which allows the afterburner chamber to occupy space behind and underneath the coffin chamber; an arrangement which makes for a very compact, fuel efficient, easy-to-construct unit. The hearth includes an ash-trough for ember reduction. The hearth can be thin because it is supported on the central wall that divides the ducts of the afterburner chamber, which makes for good heat transfer, and quick warm-up.
Claims12
Incinerator, having front, side, and back walls, and a roof, comprising:
- a receiving chamber for receiving material to be burnt lengthwise through a doorway in the front wall of the incincerator, the floor of the receiving chamber comprising a hearth;
- an afterburner chamber, which has walls that define a relatively long, narrow passage;
- means for releasing oxygen in copious quantities into one end of the passage;
- stack means for discharging gases from the other end of the passage;
- the arrangement being such that there is a vigorous blast of oxygen-rich gases in the passage;
- an opening in the wall of the passage;
- where the opening is so located and arranged:
- (a) as to leave the passage still well-defined in the region of the opening;
- (b) as to be out of the line of the direct blast of gases in the passage;
- (c) that gases outside the passage are drawn into the passage through the opening by the blast of gases in the passage;
- having an ember-reducing location to which partly consumed embers in the receiving chamber may be moved;
- where the ember-reducing location is just below the said opening, to the extent that gases rising from the location are drawn directly towards and through the opening and into the passage;
- where, in a cross-section taken on a vertical longitudinal plane of the incinerator, the ember-reducing location is widely spaced from the outside walls of the incinerator;
- and having an ash removal port from which the fully consumed embers, in the form of ash, may be removed from the incinerator;
- wherein the ash removal port is in one of the side walls of the incinerator;
- and wherein said ember-reducing location is an ash-trough, disposed at the back of the hearth, into which embers may be pushed from the doorway.
Dependencies are inferred from the claim text.