dicial effects due to the slow magnetization and demagnet- tion of an elastic filtering material, which when compressed by the movable cover, o, secured merely by a crossbar and ization of the iron; and, in the majority of the present motors, forms a compact bed through which the water percolates,… … ratus gave so poor results that its inventor did IMPROVED SPONGE FILTERS. contents will run into the division, B. Neither is direct not deem it worth while to publish a description. heating, by means of a furnace as shown, essential to the In 1881, Mr. Burgin exhibited at the Pal- proper working of…
Patented · Apparatus · Iron · Patents · Improved · Scientific American · Consists · Water closet · Upper ends · Terra Cotta · Wrought iron · Sewing machine · Wooden ship · Hudson river · Portable electric · Soft parts
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