FOREST TERMINOLOGY 5 



Block hold. An arrangement of cables and blocks to secure added power for 

 moving logs. The free end of the main cable is passed through a block, at- 

 tached to the log to be moved, and then fastened to some stationary object. 

 Power is then applied to the opposite end of the cable. Two-block and three- 

 block holds differ in that two or three blocks respectively are attached to the 

 object to be moved. (P. C. F.) See Block-and-whip. 

 Syn.: one-block hold. 



Block setter. One who operates the set works on a sawmill carriage. (Gen.) 



Syn.: ratchet setter, setter. 

 Block tender. See Chaser. 

 Blow down. See Windfall. 

 Blower dry kiln. A dry kiln in which the air is heated by steam coils located 



outside of the drving room, and is forced into the latter by means of a fan. 



(Gen.) 



Blued lumber. Lumber, the sapwood of which has been stained by fungi. (Gen.) 



See Sap stain. 

 Blue jay. See Eoad monkey. 

 Bluing, n. The result of fungous attack, which turns the sapwood of certain 



trees blue. (Gen.) 

 Board, n. 1. A piece of sawed lumber 1 inch in thickenss and varying in width, 

 usually by even inches, from 4 to 12 inches. A term sometimes applied to 

 boards of all widths. 



2. Lumber S feet or more in length, 6 inches or more in width and up to 

 but not including 1^4 inches in thickness. (English markets.) 

 Board dog. See Carriage dog. 

 Board foot. A unit of measure in the lumber trade. A board foot is a section 



12 by 12 inches in size and 1 inch thick, or its equivalent. (Gen.) 

 Board mill. A sawmill that makes a specialty of 1-inch and 2-ineh lumber, 

 as compared to a timber mill that makes a specialty of material of greater 

 thickness. (Gen.) 

 Board up, to. To place a spring board in position. (P. C. F.) 

 Bob, n. A single pair of I'unners on which the forward end of logs are loaded. 

 (L. S., N. W.) 



Syn.: sloop. (E.G.) 

 Bobber, n. See Deadhead. 



Bob logs, to. To transport logs on a bob or dray. (N. F.) 

 Body wood. Cord wood cut from those portions of the stems of trees which are 



clear of branches. (N. F.) 

 Bolster, n. See Bunk. 



Bolt, n. A segment sawed or split from a short log. A term usually applied to 

 blocks from which shingles, staves, and vehicle stock are manufactured. 

 (Gen.) 

 Syn.: shingle bolt, stave bolt, spoke bolt. 

 Bolt buggy. A one-horse four-wheeled vehicle used in hauling stave bolts from 



a stave mill to the yard, and vice versa. (S. F.) 

 Bolter, n. 1. A machine consisting of one or more circular rip saws for cutting 

 small squares from slabs and lumber. Often used at hardwood plants to 

 manufacture rough vehicle, furniture, and similar stock. (Gen.) See Knee 

 bolter. 



2. One who splits stave bolts from a stave-cut. (Gen.) 

 Bolt rustler. In a stave factory, one who loads stave bolts on trucks for trans- 

 portations to the equalizer. (Gen.) 

 Boom, n. Logs or timbers fastened together end to end and used to hold do:it- 



ing logs. The term includes the logs inclosed, as a boom of logs. (Gen.) 

 Boomage, n. Toll for use of a boom. (Gen.) 



