Improvements in absorbent or porous bricks, and other absorbent or porous articles of brick and the like, and in their manufacture

摘要

192,158. Hindley, H., and Walton, W. Oct. 27, 1921. Bricks, special shapes of.-Porous refractory bricks or blocks to be used in furnaces to provide surfaces on to which liquid or colloidal fuel may be sprayed are provided with grooves 4, 5 across one of the narrower faces and one end to admit air for the combustion of the fuel.