64 BULLETIN "718, U. S. DEPAETMENT OF AGEICULTUEE. 



Hookarooii, pickaroon — A curved pike fitted to handle, used in pulling ties or 



lumber into place. 

 Horizontal band saw — A band saw which runs horizontally. 

 Husk — The frame supporting the arbor and other parts of a circular saw. 

 Inserted tooth circular saw — One in which i-emovable shanks and bits are in- 

 serted in the sockets on the rim. 

 Jump saw — One that can be raised or lowered in a vertical line. 

 .Tack slip — The trough up which the bull chain hauls the logs. 

 Knee — The part of a carriage holding the dogs and also the levers operating 



both the dogs and the taper set. 

 Log deck — The platform in a sawmill upon which logs are stored preparatory to 



placing them on the carriage. 

 Log lift — Cable slings, spaced several feet apart — employed to lift logs from 



water. 

 Loose — A saw is said to be loose when the surface falls away too much from the 



straight edge. 

 Lumber buggy — Dolly lumber truck. 

 Lumber jack — ^A tripod armed with a blunt spike on top, used as a fulcrum to 



pass the lumber up to the lumber piler. 

 Matcher — A surfacing machine used in a planing mill for finishing lumber of 



average width and thickness. Syn. — Joiner. 

 Out of round — A circular saw is said to be out of round when it is not a per- 

 fect circle. 

 Overhead trimmer — One which has the saws hung above the table. 

 Pond saw — A power-driven drag saw used to cut logs in a mill pond. 

 Press roll — A live roll which holds the lumber against the feed roll when passing 



through a machine. 

 Resaw — A circular or band mill used to resaw boards, cants, plank, timbers. 



Syn. — Pony band mill slab saw. 

 Rift gang mill — A machine for cutting edge-grained flooring strips from a cant. 



It consists of a number of small circulars set on the arbor of an edger. 

 Rock saw — A circular saw or a planer head which removes a wide kerf on the 



upper surface of the log in front of the cut of the head saw. 

 Rotary veneer machine — A machine that cuts or peels a thin endless sheet of 



wood from a round log. 

 Sash saw — An upright band of steel toothed on one edge stretched in a sash 



or frame and used singly usually in a Avater-power mill of limited capacity. 

 Saw arbor— The shaft and bearings on which a circular saw is mounted. 

 Saw guide — A device for steadying a circular or band saw. 

 Screw rollers — Rollers with a coarse thread which throw the board or slab to 



one side as the piece passes over it. 

 Set beam — A shaft on a sawmill carriage connected with the set works bearing 



pinions, one of which meshes into a rack in each headblock and moves the 



knees back or forth as desired. 

 Setting block — A small steel block on which the tooth of a crosscut saw is 



placed and then struck with a hammer to give it the proper set. 

 Set works — The mechanism on a sawmill carriage by means of which the 



setter advances the knees and the log toward the saw line after a piece has 



been cut from the log. 

 Set-works scale — A dial on a sawmill carriage which shows the distance between 



the saw line and the face of the knee. 

 Shank — Device for locking insertetl teeth into the sockets of a circular saw. 

 Shotgun feed — Steam feed. 



