. 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. 396 THE TIMBERS OF THE WORLD numerous water sprays are so directed as to assist the movement of the air in the desired direction. As the spray water is cooler than the hot wet air from the dryer, the moisture is condensed and the air returns to the heater, containing less moisture, and so after re-heating, is capable of doing further drying work. With this system fans and motors are unnecessary, but a pump system with automati
. 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. 396 THE TIMBERS OF THE WORLD numerous water sprays are so directed as to assist the movement of the air in the desired direction. As the spray water is cooler than the hot wet air from the dryer, the moisture is condensed and the air returns to the heater, containing less moisture, and so after re-heating, is capable of doing further drying work. With this system fans and motors are unnecessary, but a pump system with automatic controls is required. The humidity is well under control, but the ventilation can only be varied within very small Umits. The direction of movement of the circulating air is vertical. This means comphcated pihng, either edge- pihng, which is only possible with square-edged timber, or an air space, broad below and decreasing towards the top, in the middle of the pile. These conditions present Uttle difficulty in the laboratory, but are not so easy of execution in the timber yard. There are other methods of extracting the water from timber. It can. AtiDRFWS 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
