Brine to Buckle plate.

Brine. Water saturated or strongly . impregnated with salt.
BrineD machine. An instrument for determining the hardness of metals by forcing a hard ball into the material being testes.
BrineIl number. A numerical expres­sion of Brinell hardness.
Brinell test. (Engin.) A hardened steel ball i.s forced into the metal to be tested under a given pressure. The hardness is determined by measur­.ing the diameter of the impression and referring to a table. .
Briquette. Compressed fuel, made of coal dust and a binder.
Bristle. Coarse stiff hair of swine, used in brushmaking.
Bristol glaze. (Ceram.)A raw opaque glaze applied to stoneware products.
Bristol board. A good grade of card­board, coated or uncoated, supplied in white and colours.
Britannia metal. (Metal.) A tin anti­mony alloy, silvery white with blu­ish tinge. Used principally for uten­sils, works easily, anQ retains polish.
Britannia splice. (Elec.) A splice not much used except for heavy wires. It is made by overlapping with the bared ends of two conductors and wrapping with a finer wire.
British thermal unit. (Engin.) (Abbrev.-B.T.U.) The quantity of heat required to raise the tempera­ture of one pound of pure water I deg. Fahrenheit at or near the tem­perature or maximum density of water 39 deg. Fahrenheit.
Brittle. (Phyi) State of being fragile or breakable without deformation.

Broach. (Mech.~ A long tool with serrated edges, which is pulled or pushed through a hole in metal to form a required shape or to en­large the hole.
Broaching. (Mach.) The process of cutting or enlarging a hole in metal, of a required shape usually other than round.
Broach spire. (Arch.) An octagonal spire rising without a parapet above a tower with pyramidal forms at the angles of the tower, as in early English churches. .
Broadcast. (Noun.) A radio program . of any type. (Verb) The act of producing a radio program.
Broad Cold. (Papermkg.) A term used with reference to paper in which the grain runs the short dimension.
Broadside. (Print.) A sheet printed on one side only.
Brochure. A pamphlet; a booklet. Bronze. (Metal. and Shopwk.) Alloy of copper and tin. Used in coinage, bells, statuary, etc. SEE GUN METAL.
Bronze gauze. Fine-mesh wire screening used for straining liq­uids.
Bronzing. (Print.) Applying bronze powder to a printed surface to give the appearance of having been printed in gold.
Brown and Sharpe taper. (Mach.) A very commonly used taper especially on milling-machine spindles. The rate of taper is Yz in. per foot except in No. 10.
Brown and Sharpe wire gauge (Mach.). Also known as the Ameri­can Gauge. Used for gauging

Brownian movement. Random move­ment of particles in a fluid. It is caused by the continuous bombard­ment of the particles by the' mol­ecules of the medium.
Brush. (Elec.) A device for drawing off from the commutator the elec­tric current generated in the arma­ture windings of a generator. Brushes are usually carbon; some­times copper.
Brush holders. (Elec.) Adjustable arms with springs for holding the commutator brushes of a dynamq against the commutator, feeding them forward to maintain proper contact as they wear, and permit­ting them to be lifted from contact when necessary.
Bush loss. (Elec.) The'loss in watts due to the resistance of the brush contact against the surface of the commutator.
Brush rocker. (Elec.) A rotary rocker upon which the brush holders of a generator or motor are fixed so that the position of the brushes upon the commutator can be adjusted.
Brush spring. (Auto. Elec.) A flat or coiled compression spring designed to hold a carbon compound brush in contact with a rotating part such as a generator or starting motor armature or a distributor rotor.
Brush wire. Usually a tempered high or low carbon steel wire. Finer thicknesses (.0317 in. to .0075 in.) are round and coarser sizes are flat (.150 in. by .018 in. to .038 in by .013 in.).
B-stage resins. (Plast.) Thermoset­ting resins react to a stage where they soften when heated and swell in contact with liquids but do not entirely fuse or dissolve. This is the preferred stage for the resin in molding compositions.
Buble. (Plast.) A spherical void, or a globule of air or other gas, trapped within a transparent or translucent plastic.
Bubinga. (Wood) A very large tree native to equatorial Africa. Wood is hard and heavy with evenly spaced dark purple lines on a light violet background. Used for unu­sual grin effects in furniture and paneling.
Bucket trap. (Steam Heat.) A type of valve for eliminating conden­sation and air from radiators and pipes, without permitting steam to pass. A bucket attached to a valve actuates a discharge tube.
Buckeye. (Wood) Commonly known as horse chestnut. Wood is soft, white to pale yellow. Used for pulp, wooden ware, and artificial limbs.
Bucking bar. A bar held against the head of a rivet while the rivet is being set.
Buckled. That which is crumpled, bent, or warped.
Buckle plate. (Engin.) A plate with

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