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Definition of Terms
All Stop
Safety button (typically “red”) designed to immediately shut-down machine operation
Bark
The outer-most protective layer of a tree composed of dead cork and other elements
Band Saw
A saw consisting of a continuous piece of flexible steel, with teeth on one side
Board Foot or
Board Feet
A form of measurement where one board foot equals the volume of a board 1 inch thick by 12
inches wide and 12 inches long (1” x 12” x 12” = 1 board foot)
Cant
The 3 or 4 sided timber left over from a log, normally the center or core of the log
Cant Hook
A device used for rolling cants or logs
Carriage
A framework on wheels that allows movement of the saw back and forth past the log
CFM (cubic feet per
minute)
A measure of the volume of a substance flowing through air within a fixed period of time
De-barker
A device used to remove bark from logs prior to processing or sawing
Diagram
A plan, sketch, drawing, or outline designed to graphically demonstrate or explain how something
works or to clarify the relationship between the parts of a whole
Edge Guide
A straight edge that is used to guide a 3-sided flitch along a piece of material
Edger
A sawmill machine used to remove wany edges from flitches after they come off the sawmill,
squaring the edges and ripping the flitch into lumber
End Stop
A mechanism designed to stop the progress of an off-loading board
Fence (Arm)
A straight guide used to keep a log, cant or board a set distance from a blade or cutter
Flitch
A longitudinal section of a log with wany edges
Saw head or
Head Saw
The principle support structures on a sawmill that carries the engine, wheels and band blade used
for the initial breakdown of a log
Kerf
The groove or thickness of the path cut by the saw teeth; the total amount of sawdust removed
during a single cut
Lift Point
A point where pressure can and should be applied for lifting
Live Rollers
A powered roll case that mechanically moves material
Lockout /
Tagout
Requires authorized employee(s) to lock and tag the energy-isolating device(s) to prevent the
release of hazardous energy in order to prevent injury to employees, normally while performing
maintenance or repairs
Log Bunk
A cross support that a log is loaded onto
Lumber
(board)
A longitudinal section of a log after the wany edges have been removed, normally a 4-sided
rectangular shaped piece
Off-load
The side of a machine where the work piece (slab, cant, board, etc.) exits
Production Rate
A produced or processed quantity measure with respect to another measured quantity of time; for
example number of boards per minute, board feet per hour, per day, per week, etc.
Roll-case
A mechanical apparatus with elongated cylinders used to perform rolling operation for material
movement, can be both powered and/or manually operated
Schematic
A structural or procedural diagram, typically of an electrical or hydraulic system
Slab
The exterior portion of a log removed by the saw, having one flat and one rounded portion of a log
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