Architectural and Engineering Glossary
B
A type of setscrew.
A stone which bonds masonry together,as a perpend;a binder.
Same as tie wire.
An obsolete term for a dwelling place.
A moderately strong,high-density wood of North America and northern Europe,yellowish white to brown in color;its uniform texture and figure are well suited for veneer,flooring,and turned wood products.
A small spot or hole in wood usually caused by a woodpecker.Subsequent tree growth develops distorted grain around the injury.
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A frame fitted with a wire mesh;used to prevent birds from entering an opening,such as at a chimney hood or a ventilation opening.
An eye-shaped figure in wood formed by small sharp depressions in the growth rings.Found particularly in sugar maple but also in other wood species.
Wood of the sugar maple tree,cut so as to produce a wavy grain with numerous small,decorative,circular markings.
1.A notch cut across the grain at one end of a timber for its reception on the edge of another piece,such as a wall plate.2.The angle between two components,usually between 90 and 180 degrees.
A small puddle of water occurring at a low spot in paving.
A temporary platform,which supports workers and materials,and has more than two rows of upright posts and cross pieces.
In ancient Rome,a seat of honor,or a state chair,reserved for persons of note or persons who had done special service for the state.
A sarcophagus with two compartments.
A tile that has been fired once but not glazed.
A metal piece temporarily fixed to a bit to prevent drilling too deeply in a blind hole.
A brace.
In glazing,the distance by which the inner edge of a frame (or a stop) overlaps the edge of the glass or panel.
See locust.
See black ash mortar.
Uncoated cold rolled steel in sheets,usually 12 in.(30.5 cm) to 32 in.(81.3 cm) in width.
Uncoated steel pipe,called “black”because of the dark-colored iron-oxide scale formed on its surface;usually used for low pressure hot water heating pipes.
On a theater stage,a master switch that extinguishes all stage lights simultaneously.
A shop where iron bars are forged into objects such as tools,and where horses are fitted with horseshoes.
The number of times fan blades pass a given point per second;equals the number of blades in the fan multiplied by the fan speed in revolutions per second.
Same as grader.
An apparatus for measuring the surface area of a finely ground cement,or the like,on the basis of its air permeability.
The fineness of a powdered material,such as cement,as determined by the Blaine apparatus;usually expressed as a surface area in square centimeters per gram.
A test for determining the fineness of cement,or other fine material,on the basis of the permeability to air of a sample of the material prepared under specified conditions.
A fine-grained barium sulfate,used as white pigment in paints.
Same as apostilb.
Same as blind arcade.
A flange without bolt holes;otherwise complete.
A vertical member of a door frame which has not been prepared to receive hardware.
A lien or mortgage which is applied proportionately to every lot within a subdivision.
The area in which the loading of explosives and the blasting operations take place.
A heater consisting of a set of heat transfer coils (or sections) through which air is drawn or forced by a fan at relatively high velocities.
A hole drilled into rock in which an explosive charge is to be placed.
A steel door which has been fabricated to resist dynamic stresses caused by blast pressures up to 3,000 lb per sq in. (211 kg per sq cm).
A drill which cuts holes in rock for the placement of explosives.
Using explosives to loosen rock or other closely packed materials.
According to OSHA:a material or mixture consisting of a fuel and oxidizer used for blasting,but not classified as an explosive and in which none of the ingredients is classified as an explosive,provided the furnished product cannot be detonated with a No.8 test blasting cap when confined.
A metallic tube closed at one end,containing a charge of one or more detonating compounds,and designed for and capable of detonation from the sparks or flame from a safety fuse inserted and crimped into the open end.
A heavy,flexible covering (usually made of woven wire rope or cordage);covers an area during blasting,to prevent rock or earth fragments from flying about.
Abbr.for building.
A stand of tiered planks providing undivided space for seating.
A grandstand (or section within a grandstand) where the seats are usually not provided with backrests.
A chemical or photochemical reaction which whitens or removes color from a surface.bleb A blister or small bubble in a fluid or in a material (such as glass) that has solidified.
Wood from trees tapped for resin.Although appearance may be affected,strength is usually not.
Discoloration in the face plies of wood veneer constructions caused by oozing of glue through the face veneers.blemish In wood,marble,etc.usually a minor appearance defect that does not necessarily affect durability or strength.
