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| Face bevel |
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Saw tooth faces may be straight or angled (beveled) in one of several ways with respect to each other. The bevel is the angle to which the saw is filed with respect to the saw body. Teeth filed at 90° to the saw body are said to be straight. If they deviate from this, they are "beveled".
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| Face veneer |
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1. High quality veneer that is used for the exposed surfaces on plywood.
2. The decorative veneer on the face of the panel; the exposed side, be it wall paneling,
furniture, cabinet or other.
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| Factory lumber |
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Lumber intended to be remanufactured after it leaves the sawmill.
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| Fahrenheit (F) |
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The temperature scale in which water freezes at 32 degrees F and boils at 212 degrees F under normal atmospheric conditions. °F = (°C x 1.8) + 32.
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| Fan deck |
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The overhead area in a dry kiln where the fans are mounted.
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| Fan pitch |
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The angle of the fan blades measured one-third of the fan radius in from the tip.
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| Fan system |
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The air moving equipment within a dry kiln.
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| Fans, cross-shaft |
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Multiple fans mounted on a single shaft, which extends the length of a dry kiln.
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| Fans, variable-speed |
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Fans whose motors turn at infinitely variable speeds by varying the line frequency of the power source.
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| Fascia |
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A vertical board nailed to the lower ends of rafters.
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| Fast saw |
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A circular saw that wobbles, weaves, or snakes because the rim is too long for the speed at which it runs.
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| FBM |
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Feet, board, measure.
View: FBM Formula, FBM / Volume Calculator
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| Feed speed |
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The speed of a machine centre (canter, planer, etc.) usually expressed in feet per minute.
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| Feedback (or feedback signal) |
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The output signal from a feedback element.
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| Feedback loop |
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Any closed circuit consisting of one or more forward elements and one or more feedback elements.
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| Feller-buncher |
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A machine with a fixed-grip harvesting head which can grasp, cut, lift, swing and bunch trees for yarding. Usually this machine does not limb or buck to log lengths as a "cut-to-length" harvester can do.
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| Fence (straightedge) |
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A straightedge or linebar mounted parallel to the saw blade for guiding the lumber, cant, or flitch as it passes through the saw.
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| Fiber saturation point (fsp) |
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The moisture content at which moisture is saturated within the cell walls of wood and the cell cavities are free of water. This averages around 20 percent MC. Below FSP water is held in wood as bound water within the cell cavities or lumen.
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| Fiberboard |
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A broad generic term inclusive of sheet materials of widely varying densities manufactured or refined or partly refined wood or other vegetable fibers. Bonding agents and other materials may be added to increase strength, resistance to moisture, fire, or decay, or to improve some other property. See also Medium density fiberboard.
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| Fibre |
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A long narrow, tapering wood cell closed at both ends.
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| Filter |
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A device whose primary function is the retention by a porous media of insoluble contaminants from a fluid.
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| Fine paper |
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Paper used in making copy paper, computer forms, tablets, envelopes, printing paper, etc.
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| Fines |
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A term referring to material passing through a chip screening process that is smaller than the acceptable minimum size.
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| Finger joint |
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An end joint in which wedge shaped projections in one piece of timber fit matching recesses on the other piece and are bonded together by an adhesive.
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| Finpipe |
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Pipe with circular steel coils on the outer surface to aid heat transfer in a steam or hot oil dry kiln.
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| Firmwood |
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Solid wood free of decay and voids; a term used in log scaling.
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| Fixed collar |
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A collar firmly attached to the saw arbor; distinguished from a loose collar, which is held to the arbor with a nut.
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| Flakeboard |
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A particle panel product composed of flakes.
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| Flat top grind |
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Used to describe a tooth filed square on top. The teeth may also be ground with various combinations of beveled tops. For example, alternate top bevels are often used for crosscutting saws. Tops may also be pointed or chamfered and alternated with flat tops on very hard, dense woods. This breaks the chip up to reduce tooth load.
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| Flitch |
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A piece of lumber with wane on one or both edges.
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| Flooded |
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A condition where the pump inlet is charged by placing the reservoir oil level above the pump inlet port.
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| Flow control valve |
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A valve which controls the rate of oil flow.
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| Flow rate |
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The volume, mass, or weight of a fluid passing through any conductor per unit of time.
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| Fluid |
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1. A liquid or gas.
2. A liquid that is specially compounded for use as a power-transmitting medium in a hydraulic
system.
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| Flute |
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One of the wave shapes pressed into corrugated medium. These are categorized by the size of the wave.
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| Follow valve |
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A control valve which ports oil to an actuator so the resulting output motion is proportional to the input motion to the valve.
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| Foot (ft) |
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A linear unit of length equal to 12 inches or a third of a yard (0.3048 m).
View: Metric / Imperial Conversion
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| FOPS |
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Falling object protective structure.
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| Force |
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Any push or pull measured in units of weight. In hydraulics, total force is expressed by the product P (force per unit area) and the area of the surface on which the pressure acts. F = P x A.
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| Forest license |
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A license granted by the Ministry of Forests of British Columbia which entitles the holder to cut a specified volume of timber on specified lands.
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| Forest Management Agreement (FMA) |
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An agreement granted by the Alberta government which entitles the holder to establish, grow and harvest timber on specified lands.
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| Forest management unit |
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An area of forest land designated by the Minister of Environmental Protection of Alberta as a management unit.
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| Forklift units |
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Lumber bundled or stacked into packages that can be lifted by a forklift.
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| Formaldehyde |
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A component of resin used to manufacture plywood and panel products, and a naturally occurring component of wood.
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| Forwarder |
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A special vehicle with a cradle or bunk or trailer used to forward logs. Usually it is equipped with its own log loader device and may be tracked or wheeled. Most commonly works with a CTL harvester.
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| Four-way valve |
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A directional valve having four flow paths.
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| FPM |
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Feet per minute.
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| Framing |
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Lumber used for structural members in a house or other building. The skeleton to which roofs, floors, and sides are attached.
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| Free moisture |
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Moisture which is present in the cell cavities of wood.
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| Free of heart center (FOHC) |
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Lumber sawn to exclude the pith or heart center, as opposed to box heart.
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| Free on board (FOB) |
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Refers to the point to which the seller will deliver goods without charge to the buyer; additional freight or other charges connected with transporting or handling the product become the responsibility of the buyer.
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| Free sheet paper |
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Paper made from cooked wood fibers mixed with chemicals and washed free of impurities. As compared to groundwood paper.
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| Free water |
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Water held within the cell cavities of wood. Its movement is primarily by capillary action.
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| Frequency |
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1. The number of cycles per second of alternating current (example: 60 cycles per second or 60
hertz per second).
2. The number of times an action occurs in a unit of time. Frequency is the basis of all sound.
A pump or motor's basic frequency is equal to its speed in revolutions per second multiplied
by the number of pumping chambers.
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| Front connected |
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A condition wherein piping connections are on normally exposed surfaces of hydraulic components.
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| Front end loader |
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A mobile machine mounted on a wheeled or tracked chassis, equipped with a grapple, tuck, bucket, or fork-lift device, and employed in the loading, unloading, stacking, or sorting of logs or materials.
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| Full flow |
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In a filter, the condition where all the fluid must pass through the filter element or medium.
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| Full sawn |
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Lumber cut, in the rough, to its full nominal size.
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| Full taper |
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Boards are sawn parallel to the sides of a log.
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| Full-tree length harvester |
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A machine with a fixed-grip harvesting head which can grasp, cut, lift, swing and bunch trees for yarding. Usually this machine does not limb or buck to log lengths as a "cut-to-length" harvester can do.
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