122 



THE SAWMILL 



At the upper end of the haul up, a log flipper "boxes" the logs out of the trough onto the log deck, 

 which is usually inclined toward the carriage. 



On the log deck, the logs are freed from dirt and bark by hand. 



II. "The nigger," handled by the sawyer, 

 throws the logs on the carriage and turns them 

 by a boxing movement. 



III. "The hog" is a steel box within which 

 the edgings and trimmings are cut into small 

 slices by very strong knives rapidly rotating. 



IV. "Dust conveyors" convey the output 

 of the hog and the sawdust automatically to 

 the boilers or to the burner. 



^^?ir^ 



. (D) THE EDGER. The boards, falling 

 from the log, are conveyed automatically or by 

 hand to the edger. 



I. Parts of (he edger are: — 



(a) One or several circular saws of 

 12 inches to 28 inches diameter; 



(b) Feed works, either power or hand 

 driven, consisting either of a car- 

 riage or of feed rolls or of barbed 

 chains by which the boards are fed 

 into the saws; 



(c) Edger table. 



II. Task of the edger is:- 



(a) Removal of defects, knots, wany 

 edge, &c., at the side of a board; 



Steam nigger. Wheland Machine Works, ChaUanooga, Tenn. 



■k,*^'"''^ 



Mill pond and log haul-up of Champiun Lumber Co., 

 Crestmont, North Carolina. 



Waste conveyor and open burner at a Maine sawmill. 



