| 摘要 |
<p>The portable oven consists of three casings (1,2,3) spaced from each other. The inner casing (1) forms the oven itself and has a space around it (4) separating from the second casing (2) filled with fireproof powder, such as sand. The third, outer casing (3) is open at the top and bottom (9), the bottom opening extends downwards into a skirt (10). The middle casing (2) has a discharge hole closed by a gate (7). The oven is fitted onto the flue of a heater.</p> |
