| 摘要 |
<p>1,118,329. Cooling furnace foundations. SWISS ALUMINIUM Ltd. 26 Sept., 1966 [8 Oct., 1965], No. 42903/66. Heading F4B. Cooling passages are formed by tubes 6 embedded in a concrete mat 5 between the foundations 7, 8 and the bottom of a multicompartment kiln. The concrete mat 5 is embedded in sand 4. The cooling passages lead from a passage 9 dividing the kiln into two sections and air from the passage is driven through the tubes by fans 10.</p> |
