. Journal. t with plug m. The inlet chamber b is fittedwith sluices q and r for regulation of the supply, and withopenings for cleaning. At starting, the outlet m is left openin order to allow turbid liquid to be drawn off separately,until the actual filtering surfaces have been formed, whenthe liquid commences to run clear and is allowed to leavethrough the pipe I,—B. Improvements in Air Compressors. S. H. Johnson andC. H. Hutchinson, Stratford. Eng. Pat. 3, January 1,1892. In order to avoid the waste spaces between the reciprocatingpiston of au air compressor and the cylinder covers whenit r
. Journal. t with plug m. The inlet chamber b is fittedwith sluices q and r for regulation of the supply, and withopenings for cleaning. At starting, the outlet m is left openin order to allow turbid liquid to be drawn off separately,until the actual filtering surfaces have been formed, whenthe liquid commences to run clear and is allowed to leavethrough the pipe I,—B. Improvements in Air Compressors. S. H. Johnson andC. H. Hutchinson, Stratford. Eng. Pat. 3, January 1,1892. In order to avoid the waste spaces between the reciprocatingpiston of au air compressor and the cylinder covers whenit reaches the end of the stroke, the patentees allow thepiston to come in contact with the end covers. In order toaccomplish this without danger of breakage they construct 994 THE JOURNAL OF THE SOCIETY OF CHEMICAL INDUSTRY. [Dec. 31,1892. the body of the piston in such a manner as to allow the endto yield on striking the covers, as will be seen from theaccompanying illustration. They also use large gridiron. Improvements in Air Compressors. valves of light construction, having a low lift, in order tosecure a high piston speed, with little wear on the valves.—B. Improvement!; in Stores or Apparatus for Drying S/ti?is, Malt, Phosphates, and Animal, Vegetable, and Mineral Products. A. Riibenkamp, Dortmund, Germany. Eng. Pat. 9992, May 26, 1892. The object of this invention is to avoid the great loss of heat from drying stoves when the products of combustion and the hot air are allowed to escape directly into the atmosphere, and to effect a gradual cooling of the goods under treatment. The air for drying the goods passes through pipes orchannels arranged in a closed furnace chamber. The airthus heated having been led through the drying chamber isbrought back to the closed furnace, where it effects combus-tion of the fuel. The products of combustion are notconducted directly to the chimney, but are passed throughthe heating tubes of a second apparatus, to which it gives upportion
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectchemist, bookyear1882
