( 73 ) [KNY 



i.e., the machines which form the rock-base of the " ply- 

 board " trade. 



Knob, Knobs, and Knobstick. A hard protuberance, well under- 

 stood in the above compound form ; in a milder one knobs 

 f urnish artistic finishes to flag-staffs, poles and map-rollers ; 

 as handles on drawers, furniture, doors and fittings they are 

 useful, and form prominent features in wood, brass, and other 

 siibstances. 



Knocked Down. A machine or article taken apart in order to 

 facilitate shipping. Abbreviated to " K.D." 



Knot. A portion of a branch of a tree that forms a mass of woody 

 fibre running at an angle with the grain of the main stock and 

 making a hard place in the timber. A loose knot is generally 

 the remains of a dead branch, and its bark covered by later 

 woody growth. Knots are classified as pin, standard and 

 large, as to size ; round and spike as to form ; and as 

 sound, loose, watertight, encased, pith and rotten, as to 

 quality. In the pitch pine trade in America the various 

 knots are defined as follows : A watertight knot is one com- 

 pletely interwoven with surrounding wood, but, if a sound or 

 tight knot, will be held by the wood encasing it. A pin knot 

 is sound and not over \ in. in diameter. A standard knot is 

 sound and not over 1^ in. in diameter. A large knot is one 

 any size over \\ in. in diameter. A round knot is oval or 

 circular in form. A spike knot is one sawn in a lengthwise 

 direction. A sound knot is one solid across its face, is as 

 hard as the wood it is in, and is so fixed by growth or position 

 that it will retain its place in the piece. A loose knot is one 

 not held firmly in place by growth or position. A pith knot 

 is a sound knot with a pith hole not more than J in. in 

 diameter. An encased knot is one surrounded wholly or in 

 part by bark or pitch. Where the encasement is less than 

 of an inch in width on both sides, not exceeding one-half the 

 circumference of the knot, it is considered a sound knot. 

 A rotten knot is one not as hard as the wood it is in. 



Knotting. The process of adzing off the knots on rough timber. 



Knuckle. The working or movable part of a folding metal hinge. 

 In old examples of roofing with stone slabs (from which the 

 term " stone lath " originated, now better known as " tile 

 lath or slate lath " ) it is not rare to find the pegs the so-called 

 " knuckle-bones " obtained from sheep's feet, a favourite 

 plaything of schoolboys, variantly called " snobs." 



Knysna Boxwood. A species of boxwood from the Knysna 

 forest, and exported from Knysna, on the southern coast of 

 Cape Colony. 



