Foundation bolts to Four way switch
part on which the. superstructure is erected.
Foundation bolts. Bolts used for holding down or anchoring machinery or structural parts to the foundation on which they rest.
Foundation plate. (E1:Jgin.) A plate to which a pump, an engine, or a motor, is bolted. A sole plate (Fdry.)A plate of cast iron placed in the .bottom of a mold to receive the spindle to maintan a sweep.
Foundry. A building or place in which metal castings are made.
Foundry sand. The sand into which molten metal is run in order to impart the shape required in casting~.
Four-channel sound. Virtually the same as quadraphonics and often. used (wrongly as synonymous with surround sound.
Fourdrinier. (Papermkg.) Relating to, or designating a papaermaking machine; the first to make a continuous web.. Original machine invented by Louis Robert, but improved by Henry and Sealy Fourdrinier, assisted by Bryan
Donkin, at the beginning of the nineteenth century. Also the. wire screen in stich a machine, where the wet sheet is formed form the pulp.
Fourier. Scientist who devised classic system of harmonic waveform analysis.
Fournier. (Print.) Pierre Simon Fournier, a Frenchman, invertor of the point system.
Four-pole design. (Auto.) Any generiuor or starting motor having four field poles.
Four-stroke cycle. (Auto.) A power cycle concluded in four strokes of the engien. In the auto engine, the first downstroke is the intake; the next upstroke allows compression; ignition .and expansion on the third stroke, and exhaust on the fourth.
Four-track. Tape recorder designed to record four traCks on tape. Tape recorded in this fashion. .
Four-track tape Recording Format. Either of two professional tape recording formats in . which four channels (tracks).can be recorded in the same direction.
4-track haIf track.Four channels on 12.7 rom wide recording tape.
4-track quarter-track. Four channels on 6.3mm wide recording tape (Note: not to be confused with quarter-track stereo format in which two paris of tWo channels run in different. directions.) see"Quarter Track Tape Recording Format". .
Four-way switch. (Eke.) Used when
Four-wheel drive to Free-burning mixture control is desired from three or more places; two three-way switches are used, all others, four-way.
Four-wheel drive. (Auto.) A drive having lives axles front and rear, driving power being delivered to all four wheels.
Foxed. (Papermkg.)A term applied to stained or spotted leaves of paper caused by mildew and the like.
Fox lathe. (Mach.) A braSs worker's lathe which has a chasing bar or "fox" for thread cutting.
Fraction. A part of anything.
Fractional distillation. (Chem.) The
act of separating a mixture, as a liquid, into fractions having more or less fixed properties but not necessarily definite compounds.
Fracture. (Metal., Mach., Masonry) To break apart; to separate the continuous parts of an object by sudden shock or by excessive strain.
Frame. (Arch.) The woodwork of windows, doors, etc. (Carp.) the timber work supporting floors, roofs, etc. (Furn.) The case or border which surrounds or encloses glass, picture, etc., often richly carved or ornamented; also the skeleton strucutre of furniture. (Print.) The stand or framework on wihich type cases are placed. (Tel.) One of series of complete television pictures. In present standards, pictures are transmitted at the rate of 25 frames per second, giving the effect of a moving picture. In relation to film, frame means on ecomplete picture
on a 35mm. or 16mm. film. 35mm. motion pictures are projected at the rate of 24 frame~ per second.
Frame high. (Masonry) The height of the top of the window or door frames; the level at which the lintel or arch is to be laid.
Frame of a house. (Arch.) The skeleton of a house, including joists, studs, plates, sills, partitions, roofing, etc.
Framework. A skeleton structure or frame about which something is to be built.
Framing. (Crap.) The skeleton work of a structure. The act of erecting the same.
Framing control. (Tel.) This control on the receiver allows the repetitiion rate of the picture to be adjusted to that of the transmitter. It also may be called the vertical hold control.
Fraying. (Bookbndg.) Spreading out cords or bands preparatory to "tipping down" to a book.
Free. (Papermkg.)A term applied to paper stuff which is separated readily from the water.
Free balloon. (Aero.) A balloon, usually spherical, whose ascent and descent may be controlled by releasing ballast or gas, and whose direction of flight is determined by the wind.
Freeburning coal. Coal which burns freely but which does not fuse together and become a pasty mass when heated.
Free-burning mixture. (Auto.) Twelve to sixteen times as much air as gasoline, if figured by weight, or nine thousand times as
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