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f a bird's tail when the outer feathers are shortest, and the others successively longer. Graduated tube, bottle, cap, or glass, a vessel, usually of glass, having horizontal marks upon its sides, with figures, to indicate the amount of the contents at the several levels. -- Graduated spring (Railroads), a combination…

An instrument for determining the strength of spirits, with a scale graduated so as to indicate the percentage of pure alcohol, either by weight or volume. It is usually a form of hydrometer with a special scale.

The portion of a graduated instrument, as a quadrant or astrolabe, carrying the sights or telescope, and showing the degrees cut off on the arc of the instrument Whewell.

It is made in its simplest form by filling a graduated glass tube about 34 inches long with mercury and inverting it in a cup containing mercury. The column of mercury in the tube descends until balanced by the weight of the atmosphere, and its rise or fall under varying conditions is a measure of the change in the atm…

suring the quantity of liquid or gas received or discharged. It consists essentially of a graduated glass tube, usually furnished with a small aperture and stopcock.

An instrument with a graduated disk by means of which the angles of gems are measured in the process of cutting and polishing.

more generally, to determine or rectify the graduation of, as of the various standards or graduated instruments.

f degrees; also, more generally, the determination of the true value of the spaces in any graduated instrument.

ses, or caliber compasses. Caliper square, a draughtsman's or mechanic's square, having a graduated bar and adjustable jaw or jaws. Knight. -- Vernier calipers. See Vernier.

ling apparatus (d), which slides up or down a perpendicular metallic standard very finely graduated (bb). The telescope is raised or depressed in order to sight the objects or surfaces, and the differences in vertical height are thus shown on the graduated standard. [Written also kathetometer.]

Consisting of a hundred degrees; graduated into a hundred divisions or equal parts. Spesifically: of or pertaining the centigrade thermometer; as, 10° centigrade (or 10° C.). Centigrade thermometer, a thermometer having the zero or 0 at the point indicating the freezing state of water, and the distance between that and…

An instrument of observation, the graduated limb of which consists of an entire circle.

bearings; a surveyor's compass. It consists of a compass whose needle plays over a circle graduated to 360º, and of a horizontal brass bar at the ends of which are standards with narrow slits for sighting, supported on a tripod by a ball and socket joint.

A water clock; a contrivance for measuring time by the graduated flow of a liquid, as of water, through a small aperture. See Illust. in Appendix.

which cream has been added. -- Cream gauge, an instrument to test milk, being usually a graduated glass tube in which the milk is placed for the cream to rise. -- Cream nut, the Brazil nut. -- Cream of lime. (a) A scum of calcium carbonate which forms on a solution of milk of lime from the carbon dioxide of the air…

fine wires made to traverse the field of view in a telescope, and moved by a screw with a graduated head, used for delicate astronomical observations; spider lines. Fixed cross wires are also used in microscopes, etc.

e gun cotton in blasting operations. -- Detonating tube, a strong tube of glass, usually graduated, closed at one end, and furnished with two wires passing through its sides at opposite points, and nearly meeting, for the purpose of exploding gaseous mixtures by an electric spark, as in gas analysis, etc.…

formerly much used for showing the time of day from the shadow of a style or gnomon on a graduated arc or surface; esp., a sundial; but there are lunar and astral dials. The style or gnomon is usually parallel to the earth's axis, but the dial plate may be either horizontal or vertical.

the colored fluid, in consequence of the different expansions of the air in the bulbs. A graduated scale is attached to one leg of the tube. -- Differential windlass, or Chinese windlass, a windlass whose barrel has two parts of different diameters. The hoisting rope winds upon one part as it unwinds from the other,…

d at its center of gravity, and moving freely in a vertical plane, so as to indicate on a graduated circle the magnetic dip or inclination.