Lumber And Its Uses
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COMMERCIAL FIREPROOFING The fireproofing of wood on a commercial scale is thus described by Mr. F. C. Schmitz, Vice-President of the Standard Wood Treating Company, New York, N. Y. : The fireproofing of wood, as at present practiced com- mercially, is accomplished by saturating its fibers with a water solution of chemicals which, in the presence of fire, emit a gas that prevents combustion. To accomplish this, the wood to be treated is loaded on suitable cars, and placed in a cylinder from whic...h the air is exhausted. The above-mentioned solution is then let into and com- pletely fills the cylinder. Hydraulic pressure is then applied, by means of a pump, of such a degree and for sufficient time to force the chemical solution into and through the wood, to the point of saturation. Upon reaching this latter point, the cylinder is drained of solu- tion, and the lumber removed.
When it is necessary that the treated lumber shall be thoroughly dry before it can be used, it is kiln-dried to evaporate the water in the solution, leaving the chemicals in the pores of the wood in dry crystal form.
What to read after Lumber And Its Uses?
You can find similar books in the "Read Also" column, or choose other free books by R S Royal Shaw Kellogg to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
COMMERCIAL FIREPROOFING The fireproofing of wood on a commercial scale is thus described by Mr. F. C. Schmitz, Vice-President of the Standard Wood Treating Company, New York, N. Y. : The fireproofing of wood, as at present practiced com- mercially, is accomplished by saturating its fibers with a water solution of chemicals which, in the presence of fire, emit a gas that prevents combustion. To accomplish this, the wood to be treated is loaded on suitable cars, and placed in a cylinder from whic...h the air is exhausted. The above-mentioned solution is then let into and com- pletely fills the cylinder. Hydraulic pressure is then applied, by means of a pump, of such a degree and for sufficient time to force the chemical solution into and through the wood, to the point of saturation. Upon reaching this latter point, the cylinder is drained of solu- tion, and the lumber removed.
When it is necessary that the treated lumber shall be thoroughly dry before it can be used, it is kiln-dried to evaporate the water in the solution, leaving the chemicals in the pores of the wood in dry crystal form.
What to read after Lumber And Its Uses?
You can find similar books in the "Read Also" column, or choose other free books by R S Royal Shaw Kellogg to read onlineMoreLess
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