Lumber, its manufacture and distribution . d upon the deck as logs are not required immediately for manufacture, they maybe assorted and stored in piles underneath the main cable. 1 For a description of the jack chain, see page 30. 2 Described in American Lumberman, April 2, 1910. ELEVATION OF LOGS INTO THE MILL 29 Log Car to Sawmill Deck.—Mills having a single-band head-sawsometimes dispense with storage yards or ponds. The loaded log carsare hauled into the mill, Fig. 13, and the logs unloaded directlyupon the log This requires storage tracks within reach of themill, both
Lumber, its manufacture and distribution . d upon the deck as logs are not required immediately for manufacture, they maybe assorted and stored in piles underneath the main cable. 1 For a description of the jack chain, see page 30. 2 Described in American Lumberman, April 2, 1910. ELEVATION OF LOGS INTO THE MILL 29 Log Car to Sawmill Deck.—Mills having a single-band head-sawsometimes dispense with storage yards or ponds. The loaded log carsare hauled into the mill, Fig. 13, and the logs unloaded directlyupon the log This requires storage tracks within reach of themill, both for loaded and for empty cars, and also an inclined trackleading into the mill, which connects with both storage tracks. A powerful hoisting drum, which holds sufficient cable or chainto reach to the farthest point at which loaded or empty cars may beplaced, is installed at the far end of the log deck. The cable is fastened by means of a link pin to the drawhead of thenearest loaded car, and the whole train moved forward to a point near. Fig. 13.—A Loaded Log Car going up the Incline leading to the Sawing Method used at some Plants which do not have Log-storage Facilities. the foot of the incline. The forward car is then uncoupled from theremainder of the train and pulled into the mill by the side of the logdeck, the outer rail of the track in the mill usually being elevatedabout 12 inches to facilitate unloading. After the logs are placed onthe deck, the car is allowed to drop down the incline (the track in themill has a slight down-grade toward the head of the mill, so that thecar can be moved easily), and on reaching the base it is switched onto a siding for empty cars. The cable is then detached and carriedto the foremost loaded car, and the process is repeated. This system requires two sets of log cars, one at the mill and theother in the woods. It is a feasible scheme both at hardwood andsoftwood plants where pond facilities cannot be secured at a reason- 1 Se
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Keywords: ., bookcentury1900, bookdecade1920, bookpublishernewyo, bookyear1922
