Architectural and Engineering Glossary

F

FOHC

In the lumber industry,abbr.for “free of heart centers.”

Foil Arch

An arch with cusps or foils on its intrados.
 

Foiled

Decorated with foils. 

Foiled Arch

Same as cusped arch. 

Follow Spot

A theater spotlight used to follow a performer on the stage.

Footstone

A kneeler,1;a gable springer.

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Footway

1.A pedestrian walk or footpath.2.A sidewalk.

Force Account

A term used when work,1 is ordered to be done without prior agreement as to lump sum or unit price cost thereof and is to be billed for at cost of labor,materials and equipment,insurance,taxes,etc.plus an agreed percentage for overhead and profit.

Force Cup

Same as plumber’s friend.

Forced Air Furnace

A warm air furnace equipped with a blower to circulate the air through the furnace and ductwork.

Forced Air Heating System

A conventional heat distribution system in which heat is circulated by means of a blower (fan).

Forced Circulation

Circulation of air,water,etc.by mechanical means,such as a fan or pump.

Forced Circulation Boiler

A boiler that uses a mechanical pump to circulate water flowing through the boiler’s water tubes.

Forced Circulation Register

A register for use with a duct system conveying air under pressure;permits the control of the discharged air in two or more directions simultaneously.

Forced Convection

Heat transfer resulting from the forced circulation of air,water,etc as by a fan,jet,or pump.

Forced Draft

In a furnace,a draft of air which is mixed with fuel before being fed into the combustion chamber.

Forced Draft Boiler

A boiler having a power operated fan which furnishes the burner and boiler with air,and also forces the products of combustion out through the chimney.

Forced Draft Fan

A blower (fan) that creates a positive pressure,forcing air into a combustion chamber.

Forced Draft Water Cooling Tower

A water cooling tower having one or more fans located in the air stream entering the tower.

Forced Drying

A process for speeding up the drying of paint,using a moderate heat,up to 150F (65C).

Forced Fit

The joining of two parts,members,etc.without the use of fasteners,by forcing the two together.

Forced Ventilation

The circulation of air by a fan or blower.

Fore Choir

Same as antechoir.

Fore Plane

A carpenter’s plane,intermediate in length,used between a jack plane and a jointer.

Forebay

An integral part of a structure’s upper story that significantly overhangs the story below;see forebay barn.

Forebay Barn

A barn,often on a hillside,having a forebay (usually on its downhill side) that may be supported by a series of heavy posts or pillars.

Forebuilding

An outer defense work of a castle that was attached to a keep,protecting the stairway and entrance.

Forechurch

A consecrated extension in front of a larger church.

Foreclosure

The depriving of the right to a property by legal transfer of title,esp.because of failure to maintain mortgage payments.

Foreclosure Sale

The optional right of the mortgagee to resort to the sale of the mortgaged property in the event of default in mortgage payments,and to apply the net proceeds realized from its disposition to the unpaid debt.

Forecourt

A court forming an entrance plaza for a single building or several buildings in a group.

Forend

British term for lock front.

Forestage

1.That part of a theater stage which is on the audience side of the proscenium or stage curtain.2.See apron.

Foreyard

An exterior court in front of a building. 

Forging

A metal part,worked to a predeter mined shape by one or more of such processes ashammering,upsetting,pressing,or rolling.
 

Foris

One of the two leaves of a door to a sacred Classical edifice;often used in the plural (fores).

Fork And Tongue Joint

A mortise and tenon joint used to join timber rafters at the peak of a roof.

Form

Temporary boarding,sheeting,or pans of plywood,molded fiberglass,etc.used to give desired shape to poured concrete,or the like.

Form Anchor

A device used to secure form work to previously placed concrete of adequate strength.

Form Coating

A liquid coating applied to concrete formwork to promote ease of release of the form from the concrete.

Form Deck

Sheet metal which has been rolled into parallel ridges and furrowed to provide additional mechanical strength;may serve as form work for reinforced concrete decking,2.

Form Hanger

A hanger used as a support for formwork which is hung from a structural frame work.

Form Insulation

Thermal insulation which is applied to the outside of concrete forms between studs and over the top;used in sufficient thickness,with an airtight seal,to retain the heat of hydration so that the concrete is maintained at the required temperature for proper setting in cold weather.

Form Oil

An oil which is applied to the interior surfaces of concrete formwork so as to promote a clean break when the forms are removed.

Form Pieces

A medieval term for tracery.

Form Scabbing

The removal of the surface of concrete as a result of the lack of a clean break when the forms are removed;some of the concrete adheres to the form and is pulled away.

Form Stripping Agent

Same as release agent.

Form Tie

Any tie,in tension,which is used to prevent concrete forms from spreading as a result of fluid pressure of freshly placed,unhardened concrete.

Formal Garden

A garden whose plantings,walks,pools,fountains,etc.follow a definite,recognizable plan,frequently symmetrical,emphasizing geometrical forms.

Formed Plywood

Curved plywood;manufactured by being pressed between rigid forming dies.