Goggles to Gravel

Goggles to Grai1led cow/ride

it is intended.
Goggles. Shrouded dark glasses worn by welders and grinders as a pro­ tection against eye injury.
Gold. The most malleable and ductile of all metals, Symbol, Au.
Goncalo Alves. (Wood) A tall slender tree found in Brazil. It is a hard­wood with general colour and grain similar to mahogany but marked with light and dark longitudinal streaks. Used for small table tops, borders, and panel sections.
Goniophotometer. A device for meas­ uring paint glare.
Go or no-go gauge. (Mach.) Often a double-end gauge with certain allowable tolerance between the ends. One end fits nicely the part being gauged; the other end is too small for an outside diameter or too large for an inside diameter.
Gooseneck. (I) A mechanical contriv­ance bent or shaped like a goose's neck. (2) A bent pipe or tube having a swivel joint so that its outer end may be revolved. (Bldg.) The curved or bent section of the handrail on a stair.
Gordon press. (Print.) An early-type platen press.
Gothic. (Arch.) A particular style of classic architecture or ornament (Print.) A name applied to a san serif type face square in outline.
Gothic arch. (Arch.) A high, narrow, pointed arch.
Gouge. Cutting chisel which has either a concave or convex cutting surface.
Governor. (Mech.) A device for regu­lating the speed of engines and machines.

Grab. (Mech.) A device used for haul­ing or hoisting.
Grab hook. (Fdl}'.) Hooks connected by short chains or rods for the purpose of attaching loads to the crane hookan.
Grade. (Arch.. Draw.. and Bldg.) The level of the ground around a build­mg.
Grading. (I) The levelling or slop­ing of a plot of ground to a desired angle. (2) the sloping of a sidewalk to secure proper drainage.
Gradual load. A load gradually ap­plied to a structure and which fur­nishes the most favourable condi­tions of stress.
Graduate. To divide into regular steps or grades, as a scale.
Graduation. The method or system of dividing a graduated scale; also one of the equal divisions or one of the dividing lines of such a scale.
Grain. (Leather.) (I) To scrape off the hair from a hide. (2) The knife used by tanners for scraping off hair. (papermkg.) Alignment offibers lengthwise in paper corresponding to the direction of their movement on the paper machine. (Woodwkg.) The direction of wood fibers; work­ing a piece of wood longitudinally may be with or against the grain; transversely is cross grain. (Troy weight.) 7000 grains equal one 16-ounce pound.
Grained cowhide. (Leather.) An em­bossed, nontoolable cowhide, .sup­plied in different grains and col­ours. Used for making bags. cases, etc.

Graining to Gravel

Graining. (Film.) A painting process applied to cheap woods to imitate oak, walnut, and other better woods.
Graining comb. (Wood Fin.) A comb­like tool made of sleel or leather. Used by wood finishers for obtain­ing grain effects.
Gram. The standard unit of weight in the metric system, equal to 15.432 grams.
Gramme ring winding. (Elec.) An armature winding which is now practically obsolete except for very special applications.
Gram molecular weight. (Chern.) The molecular weight of a substance expressed in grams. A gram mole­cular weight of a gas measures 22.4 liters under standard conditions.
Granite. (Bldg.) A rock composed of quartz, feldspar, and mica. It is very hard and takes a high polish. Used extensively in building work and for monuments.
Granular. Composed of granules; not fibrous in composition.
Granular carbon. (Elec.) Small granu­lated particles of carbon, used in telephone transmitters or in variable resistances.
Granular structure. (Plast.) Non-uni­fonn appearance of finished plastic material due to retention of, or in­complete fusion of, particles of com­position, either within mass or on surface.
Grape sugar. (Chern.) Appears in the market as a hard, waxy solid; when fresh, it is white, but darkens with age. It is a crude dextrose, or glu­cose, used in the m~nufacture of wine and confectionery, preparing tabacco, and chrome tanning liq­uors.
Graphic. Illustrating ideas by pic­. tures or diagrams.
Graphic arts. (Art.) A broad term which embraces every branch of pictorial representation. (Print.) Embracing every form of printing represented by text and illustra­tions.
Graphic methods. The methods used for ascertaining strains upon struc­tures, velocity, ratios, etc., by means of drawing.
Graphite. (Fdry. and Engin.) Is either artificial or natural, and seldom contains more than 90 per cent car­bon. It has a peculiar silvery luster, and is used in the manufacture of lead pencils, as a lubricant, and in foundry work as a mold coating.
Graphite paint. (Paitlt and Lacquer) A mixture of graphite, boiled lin­seed oil, and a small amount of drier. A very' good paint for iron­work.
Graphitizing. (Metal.) The method by which most of the carbon in gray cast iron is transfonned to a graphitic condition by an ann~al­ing process.
Grate area or grate surface. The area in square feet covered by the fire bars of a boiler, i.e., equivalent to the area over which full combustion can take place.
Grating. A gratelike arrangement of bars used to cover an opening. (Engin.) Also used for forming platforms in engine rooms, stair landlings, on fire escapes! etc.
Gravel. A natural mixture of sand and 'pebbles.