Lumber, its manufacture and distribution . ed under themonorail trestle or are carried to side piles by means of an overheadtransfer. When the piles are broken up the lumber is handled in theoriginal units, thus saving much hand labor. Lumber also may be ele-vated to the top of high piles by means of a locomotive crane, althoughthis method is more commonly used for handling timbers. When a pile is completed it is customary to mark, on the front ofthe pile, the grade, the size,the number of pieces, andthe date the pile was com-pleted. This is a greataid in taking inventorybecause the stock-take
Lumber, its manufacture and distribution . ed under themonorail trestle or are carried to side piles by means of an overheadtransfer. When the piles are broken up the lumber is handled in theoriginal units, thus saving much hand labor. Lumber also may be ele-vated to the top of high piles by means of a locomotive crane, althoughthis method is more commonly used for handling timbers. When a pile is completed it is customary to mark, on the front ofthe pile, the grade, the size,the number of pieces, andthe date the pile was com-pleted. This is a greataid in taking inventorybecause the stock-takerhas only to record thepile number and its con-tents. The date is an in-dication of the relativedryness of the stock. Pile-roofs. Lumber piles shouldbe roofed over during thewinter or the rainy seasonto prevent the entrance ofrain and snow into the in-terior of the pile, otherwisedrying will be the summermonths some prefer toomit the roof because ofthe better circulation ofair which may be securedif the top is not SIDE ELEVATION FRONT ELEVATION Fig. 135.—A Hilke Lumber Stacker used for HighPiling and also to lower Boards when Piles aretaken down. Power for driving the Elevator isprovided either by an Electric Motor or by aGasoline Engine. High-grade hardwoods, however, shouldbe protected against the direct rays of the sun, otherwise they willcheck and warp. Some do not put battens on the roofs of high-gradehardwood piles during the summer months, thus securing better aircirculation. The roof may be made of boards kept for that purpose. However,softwood manufacturers usually prefer to make the roof from the samekind of material as that in the pile so that when the lumber is moved,the roof also may be taken. In this way the yard can be kept cleaner, 214 SEASONING LUMBER and the roof boards are sold before they become so badly damaged thatthey have no market value. The roof should project at least 18 inches over the front of the pile,and far enough over
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Keywords: ., bookcentury1900, bookdecade1920, bookpublishernewyo, bookyear1922
