64 BULLETIN 718, U. S. DEPARTMENT OF AGRICULTURE. 
Hookaroon, piekaroon — 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 removable 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. 
Jack 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 water-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 inserted teeth into the sockets of a circular saw. 
Shotgun feed — Steam feed. 
