Improvements in Apparatus for the Distillation or Carbonization of Coal and Cannel.

摘要

120,139. Key. J. T. Dec. 14, 1917. Ascension pipes.-Mains or stand-pipes 7 are provided with sets of grids 9, and the openings of alternate grids are arranged in rows at right angles to each other to cause the gases to follow tortuous paths. The retorts are braced by stanchions 19 connected by girders 20 on which are placed cradles 21 carrying dip pipes 22 connecting the pipes 7 with the hydraulic mains 23.