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Items of Interest
More than twenty thousand tons of woodflour, valued at $300,000, are used annually in the United States in two widely different industries,—the manufacture of dynamite and the manufacture of inlaid linoleum. Wood-flour is also used in making composition flooring, oatmeal paper, and in several other industries. It forms one of the means by which the huge waste product of our lumber mills is beginning to find some better means of disposal than the burner. A total of 36,000,000 cords of such waste is produced each year at sawmills in the United States, of which about one half goes into the furnaces as fuel, while the rest is burned as refuse. All industries that use wood-flour require a white or very light creamcolored flour having good absorptive powers.
In the manufacture of linoleum, either wood or cork flour is used. The flour is mixed with a cementing material, spread out on burlap, and rolled or pressed to a uniform thickness. The cement is the expensive constituent. Cork linoleum is the cheaper, because less cement is necessary. For inlaid or straight-line linoleum, wood-flour is used exclusively. Cork linoleum is always dark, and slightly more elastic than that produced from wood-flour. The wearing qualities are about the same.
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