F to Faciliate
F. A Fraunhofer line in the blue of solar spectrum or wavelength 486.1527 nm. It is the second line in the Balmer hydrogen series known also as H~; symbol for Faraday, farad; symbol used following a temperature (e.g;48°F), to indicate the Fahrenheit scale.
Fabricate. (Plast.) Working plastics into products by any or a combination of manufacturing methods. .
Fabrication. (Engin.) The act of building or putting together. Forming into a whole by uniting or assembling of parts; e.g., the fabrication of a ship or a bridge.
Fabric universal joint. (Auto.) Made of heavy fabric. Tl)is type of joint is best adapted to short shafts and close quarters, as accessory shafts about the engine, although it is sometimes used between transmision and rear axle.
Facade. (Arch.) The front. elevation or exterior face of a building.
Face. (Mech.) the face of a casting is that surface which is turned or polished. The face of a gear wheel indicates the breadth»fthe teeth; of
a belt pulley, the breadth of the rim. (Print.) That part of type which makes the printed impression. (Mech.) To true up the cnd of a piece carried between lathe centers, or to machine the flat surface of a piece carried on an arbor, a face plate, or in a chuck. .
Facebrick. (Arch., Masonry) Brick of the better quality, such as is used on walls prominently exposed.
Face hammer. (Masonry) Used for rough dressing stones. It has one blunt end and one cutting end.
Face lathe. (Mach.) A short-bed, deep-gap lathe designed for the machining of large, flat surfaces.
Face mark. (Wood wkg.) A mark placed on one surface of a piece of wood which is being worked, in order that it may be identified as the face from which other surfaces are trued.
Face mold. (Arch. and Bldg.) The full size or scale drawing or diagram of the curved portions of a sloping handrail..The drawing gives thetrue dimension and shape of the top of the handrail.
Faceplate or face chuck. A circular plate for attachment to the spindle in the headstock of a lathe. Work may be clamped or bolted to it. The slots engage the tail of the lathe dog.
Facet. One of the flat surfaces cut on gems or precious stones.
Facilitate. To promote easier operation or completion.
Facing to False horizon
Facing. (Fdry.) To produce smooth small castings a facing material such as plumbago or talc is dusted over the mold after the pattern. has been removed. For large castings a mixture of sea coal and sand is placed over and around the pattern prior to ramming up the mold. (Textile) J'he covering or visible fabric of a collar..
Facsimile. An exact copy or reproduction.
Factory of safety. The number which results by dividing the ultimate strength of a material by the actual unit stress on a sectional area.
Fade. The process of reducing the signal level until it is largely attenuated or completely inaudible (faded away). There are short. fades (almost imlTl;~diate) and long fades (F~om 5 to 30 seconds). Fades are most often done at the end of a recording. Can ~ used with reference to both audio and video.
Fade in. (Tel.) To bring up the television image electronically so that it appears gradually.
Fade out. (Tel.) (Reverse process.) To black out a television image electronically so that it disappears gradually.
Fading. (Elec.) In radio reception: the temporary varying of signal strength generally due to atmospheric conditions. .
Fagot. (Forg.) A bundle made up of a number of iron bars to be heated, hammered, and welded into a unit for rolling to form another bar.
Fahlum metal. (Metal.) A white alloy used in the manufacture of cheap jewelry. It contains 40 per cent tin and 60 per cent lead.
Fahrenheit. Gabriel Fahrenheit, a German physicist (1686-1736.)
His name is given to the commonly. used thermometer scale in which the freezing point is 32 deg., and the boiling point 212 deg.
Faience. (Pot.) A variety of majolica ware, usually highly decorated.
Failure. The inability of materials and structures to endure or accomplish the work for which they' were selec~ and designed.
Fairing. (Aero.) An auxiliary member or structure whose primary function is to reduce head resistance or drag of the part to which it is fitted (without, in general, contributing strength).
Faldstool. (Furn.) A desk at which the litany is read, as in the Church of England; also a type of folding stool or chair.
Fallacy. Any of various types of erroneous reasoning that render arguments logically unsound.
False horizon. A line or plane that simulates the horizon, used in altitude measuring device or the like.
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