| 摘要 |
Patent fuel consisting of a block of less combustible material, wholly or partly enclosed in a packing of more combustible material, which packing may have been impregnated using a particularly combustible material. This invention is characteristic in that the packing (2) is constituted by a rigid, self-supporting shell construction preferably of cardboard. Preferably the block (1) and the packing (2) may be designed so in relation to each other that there will be one or more cavities between these. The packing (2) section may have the shape of a polygon, for instance an isosceles triangle, so that the block (1) will not fill out the packing (2) along the longitudinal edges (3, 4, 5) of the polygon. |
