Xovpinher 'jr*. 1021 



HARDWOOD RECORD 



29 



sills then tlie lumber is piled ami a line of stickers runs vertieally 

 over each cross sill. 



Much depends upon the proper slope of the pile. The vertical 

 distance, from the ground level to the under side of the cross sills 

 on tlieir high (south) end should be 28", and at their low (north) 

 end 12". Their lengtli should be 10' i", as previously stated. 

 Have Plenty of Stickers 



Aside from good foundations the best investment in a lumber 

 yard can be made in a sufficient quantity of first-class stickers, cut 

 to uniform width of two inches or a trifle less, and by all means 

 surfaced on both sides to uniform thickness of one inch (full), and 

 above all this a good system of spacing these stickers, in perfect 

 vertical lines, with horizontal centers determined by the thickness 

 of the lumber, and finally a reasonable amount of interested super- 

 vision to compel a strict enforcement of the adopted system of 

 spacing and placing of the stickers. 



As soon as completed each pile should be properly covered. In 

 fact it pays well to cover any pile, complete or incomplete, if work 

 is stopped on same for more than 24 hours. The covering should 

 project well beyond all faces of the pile. A layer of stickers should 

 be placed on the top course of the pile, and upon these the covering 

 boards, resting on cleats which are placed crosswise of the stickers. 

 Thus will be provided an air duct over the top surface of the top 

 course of lumber. If possible the covering should be systematized 

 and made uniformly sectional by cleating together a number of 

 boards, care being taken to hold the aggregate weight of these per 

 section witliin the reasonable limit of ready handling. 

 File Similar Lengtlis Together 



In the described system as in any other system of piling it is 

 very necessary to sort out the different lengths on unloading, and 

 to pile up uniform lengths into separate piles. Even then a large 

 number of board ends will pro.i'ect, and to save these as much as 

 possible, it is necessary to make the west face of each pile per- 

 pendicular, the board ends brought flush to outer edge of the 

 stickers and protected by the same, while the east ends of the boards 

 are permitted to project beyond the line, if the boards are too long, 

 since the morning sun heat is very much less effective than that 

 of the afternoon sun, the maximum cumulative heat effect falling 

 between 3 and 4 p. m. during the warm season. 



In the more valuable grades board ends might well be painted 

 on the same day when piled. The paint used, however, must be 

 sufficiently heavy in body to completely close the spaces between 

 have already developed due to end drying, and this paint must also 

 the fibers due to rough sawing, and any small cracks which may 

 remain reasonably elastic for a long time, regardless of exposure 

 to the weather. Such a paint can be produced with little trouble, 

 and it can be made less costly and vastly superior to some of the 

 patent compounds offered for the purpose. 



In general practice of endwise sloping piles it is customary to pitch 

 the piles forward, sufficiently to prevent rain water from flowing 

 down and into the front of same, and to enable rain water entering 

 their sides to flow off. The writer has found this unnecessary with 

 crosswise sloped piles, both, the south and the north, faces of which 

 should be strictly perpendicular. A reasonable overhang of the 

 roof will go a long way to keep out the rain, front and back, and 

 the end stickers will keep out the water at the sides. 



It may be properly stated that the foregoing detail suggestions 

 are not merely based on theoretical beliefs, but are in fact quoted 

 from actual experience with the described method of piling, as 

 used by the writer in a large storage yard preceding the kilns in 

 a war operation, this experience extending through a period of over 

 two years, and sufficiently long to prove or disprove the assumptions 

 and conclusions which prompted the writer to adopt this method 

 of piling in his yard layout. A similar piling method has been used, 

 to the writer's knowledge, by at least one southern lumber producer, 

 but no data as to results are at hand. 



There are occasions when it will be found desirable to slow down 

 the drying in a pile, as with green southern low land oaks, or with 

 American walnut, in heavier thicknesses or when cut to heavier 



High Humidity 

 Dry Kiln 



Circulation in Dry Kilns 



It must be constant. 

 It must be uniform. 

 It must convey automatically 



humidified air. 

 It must convey automatically 



tempered air. 



Remember: 



It IS good times when money 

 Circulates freely — it is good 

 DRYING times when air 

 circulates freely. 



"The Kiln with the Circulation 

 You Can Understand" 



HAVE YOU WRITTEN FOR YOUR 

 COPY OF OUR NEW CATALOGUE 



I >iri7CSt Factory w the World Dci'.tcd to the M t;::: 

 Moving Equipment 



of Al 



B. F. STURTEVANT COMPANY 

 HYDE PARK, BOSTON, MASSACHUSETTS 



Atlanta. Ga., Boston. Mass.. Chicago. III., Xcw York, X. Y. 



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