. A manual of the timbers of the world : their characteristics and uses : to which is appended an account by S. Fitzgerald of the artificial seasoning of timber. Timber. AtiDRFWS TIMBER TlEMAN KiLM Types of Condensing Kilns. be baked out by putting the wood in contact with steam pipes. This can be done without splitting, if steam vapour is used to restrain the drjdng action. This treatment is, however, very drastic, and uniform drying is difficult unless the wood is absolutely desiccated. There is also the Hausbrand system of drying with superheated water vapour. In this, wet air is at
. A manual of the timbers of the world : their characteristics and uses : to which is appended an account by S. Fitzgerald of the artificial seasoning of timber. Timber. AtiDRFWS TIMBER TlEMAN KiLM Types of Condensing Kilns. be baked out by putting the wood in contact with steam pipes. This can be done without splitting, if steam vapour is used to restrain the drjdng action. This treatment is, however, very drastic, and uniform drying is difficult unless the wood is absolutely desiccated. There is also the Hausbrand system of drying with superheated water vapour. In this, wet air is at first circulated, and the temperature is gradually raised. After reaching boihng point the air is allowed to escape, and the water vapour only circulates at such a temperature as to cause evaporation of the moisture in the wood. Wood can be dried by such means, but few people would risk their material under such a drastic process. The various systems may, therefore, be said to be reduced to the two main types of dryer, the progressive and the compartment, and to two ways of obtaining the circulation, that is, either by mechanical or thermal means. Accessories for working, such as water or steam sprays or hygrometers, can be appUed to any of Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Howard, Alexander Liddon, 1863-1946; Fitzgerald, S. London : Macmillan
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Keywords: ., bookcentury1900, bookdecade1920, bookpublisherlondo, bookyear1920
