Tuesday, August 19, 2008

Glossary of Firework Names A-N

Item

Definition

1.1G

The UN Classification of Fireworks packaged for transport that poses a mass explosion hazard.

1.2G

The UN Classification of Fireworks packaged for transport that poses a projectile hazard

1.3G

The UN Classification of Fireworks packaged for transport that poses a fiery projectile or thermal radiation hazard

1.4G

The UN Classification of Fireworks packaged for transport that poses a limited hazard

1.4S

The UN Classification of Fireworks packaged for transport that poses a very limited hazard with minimal effect if ignited.

ADR

Regulations covering all drivers of explosives vehicles over a certain net weight of explosives

Aerial Firework

A firework that has its main function above ground level mainly shells, roman candles, mines and cakes

Aerial shells

A shell that is designed to function at altitude

Aquatic shell

A shell that is designed to function on the surface of water

Bag mine

A mine that is fired from a mortar with only a small casing to create minimum debris

Bare match

Blackmatch without a sleeve

Barrage

A combination of fireworks designed to be fired simultaneously

Battery

A group of roman candles grouped and fused together for increased effect or duration

Bengal

Coloured flare usually made up from loose packed composition

Blackmatch

A cotton thread coated with blackpowder in its raw state. Sometimes cased in a paper tube

Black powder

A composition of potassium nitrate, charcoal and sulphur in the proportion of 75:15:10 widely used in fireworks manufacture as a propellant and the basis for compositions containing metal powders. Blackpowder does not detonate on ignition but merely burns very fast

Blind shell

A shell that fails to break. Potentially very dangerous

Blinker

An effect of periodic burning giving the effect of flashing or strobe

Bombette

Spanish for little shell. Usually found as part of roman candles or cakes and occasionally in mines or sub components of shells

Bottom fused

The normal method of igniting a shell. The delay is ignited which then lights a delay fuse on the shells. Also used for cakes when the fuse runs round the base of each tube and enters via a small hole

BPA

British Pyrotechnic Association. Trade organisation concerned with all areas of firework safety and use in the UK

Break

A burst of a shell or bombette unit. Shells can either be single or multibreak units

British Standard

The standards set for consumer fireworks for labelling and construction. All consumer fireworks must comply with BS 7114 part2 1988

Brocade

Long burning star that burns bright but not as long as a kimuro

Bung

Always used at one end only of a tube or mortar. A composite or solid wooden disk the same size as internal diameter of a tube and usually nailed and glued into the tube to keep secure. Bungs are often made of compressed clay for items including cakes and roman candles.

Bursting Charge

An internal charge of a shell or bombette unit that breaks the shell open at a predetermined height. Made from gunpowder or flashpowder

Butterfly

A burst of a cylindrical tube from a central point which creates an effect that looks like the wings of a butterfly

Cake

Colloquial term for a multi shot battery

Calibre

The inside diameter of a firing tube or mortar

Cannonade

An aerial shell containing several shells that explodes at the same time. Also a battery of reports from china

Case

The tube that contains firework composition

Catherine wheel

The traditional name for a wheel. The name given because of St.Catherine who was martyred on a burning rotating wheel

Chain fusing

A method of fusing several firework elements together e.g. shells

Chinese cracker

A roll of many hundreds of individual cracker units which produces a machinegun report effect when hung up. Traditionally used for Chinese celebrations

Choke

The narrowing of a tube usually for fountains or rockets by means of squeezing the tube or the insertion of a clay bung

Chrysanthemum break

A spherical burst in which each star leaves a visible trail

Closed circuit

A completed electrical circuit. i.e. A ready to fire circuit

Coconut break

A shell containing large stars usually gold, silver or crackling to produce a palm tree effect. Usually fitted with a tail to produce the trunk effect

Comet

A solid unit of composition usually used in roman candles. The unit is completely self consuming so is useful for site where fallout is a problem

Composition

A term used for all pyrotechnic mixtures. More specifically it is a list of ingredients in a particular mix. All compositions contain an oxidant together with colour or effect ingredients.

Cone

A specialised fountain in the shape of a cone. A burning cone will increase the height of the spark shower as it burns as the surface area that burns is increased.

Cracker

Banger unit also see Chinese cracker

Crackle

An effect containing hundreds of sharp bangs thrown off a low intensity comet. Most crackle compositions contain lead or bismuth oxides

Croaker

See Screecher

Cross match

A piece of thin raw match used to facilitate the ignition of a shells internal delay fuse. Usually made from splitting or punching the delay fuse

Crossette

See Splitting comet

Crossing stars

Two stars in a single tube with a central bursting charge

Crown

See Kimuro

Crown chrysanthemum

A chrysanthemum break with longer burning stars that fall to the ground. Often produced to have coloured tips at the end.

Crown wheel

A plastic ring with driver units that rotate and flies vertically. Double acting versions are available which ascend drop sand then re ascend

Cylinder shell

Usually European and commonly a stack of shells that are timed to break in a sequence.

Dahlia

A shell with larger and brighter stars than peony breaks

Deflagration

Explosive propagation which is faster than burning but is not detonation

Delay

Pyrotechnic composition that burns at a predetermined rate and used for timing within or externally between fireworks

Delay fuse

A pyrotechnic composition designed to delay before functioning the next explosive device. Most commonly used in shell spikes as they rise into the air.

Display area

The are used for rigging and including the safety and fallout area

Driver

A specialist gerb with more power whose primary purpose is to rotate a wheel. Often including titanium.

DTI

Department of Trade and Industry responsible for aspects of sale of fireworks to the general public

EIG

The Explosives Industry Group of the Confederation of British Industry. Its main purpose is liaison with government on safety and legislative matters

Electric firing

The process of firing a displays electrically.

Electric igniter

An electrically ignited match head commonly used on electrically fired displays. These are not to be confused with detonators

Electric match

An electric igniter

European standard

A proposed standard for fireworks across Europe (CEN 212) currently being adopted across Europe.

Explosive

Any material that is capable of undergoing a self contained self-sustained exothermic chemical reaction at a rate that is sufficient to produce substantial pressures on their surroundings thus causing physical damage. All fireworks are classified as explosives

Explosive train

The progress of fire from one explosive component to another.

Fallout zone

A safe area designated for any debris fallout from a display. This must be selected with climatic conditions in mind.

Finale barrage

A rapid firing pre fused sequence fired at the end of a display

Firecracker

See Cracker

Firework

An explosive assigned to UN numbers 0333 to 0337.

Flare

A pyrotechnic device designed to emit coloured light.

Flash rocket

A rocket containing a flashpowder charge that produces a loud report after its ascent

Flight rocket

A small rocket. Usually fired in large numbers simultaneously from a tube or cone

Flitter

A spark effect produced by incorporation of coarse metal powders, usually aluminium

Fountain

A device containing pyrotechnic composition in a tube which is usually choked.

Front

An arrangement of mines, fountains or roman candles arranged parallel with the spectators and fired simultaneously

Fuse

Means of transferring fire to a firework

Fuse cover

A protective cover for the initial fuse of a firework. Often coloured orange

Garden firework

A firework of limited power for use in restricted outdoor areas. Category 2 fireworks.

Gerb

A thick walled tube filled with composition and having a choke. Emits shower of sparks

Glitter

Production of molten composition droplets which react with air to produce a glittery effect. Similar but different to strobe and flitter

Gunpowder

Pyrotechnists term for black powder.

Hammer shell

A multibreak shell comprising of colour breaks with timed detonation

Hanbai

Japanese for fireworks translated as 'flowers of fire'

High explosive

An explosive that is capable of exploding when unconfined

HSE

The British Health and Safety Executive. Enforcement and legislative body.

Hummer

A thick walled tube filled with composition with a specific burn rate so as to produce a humming sound

Igniter

A shortened term for an electric igniter

Igniter cord

Also called pic. This is available in several burning speeds. Often used to time link fireworks

Ignition

The initiation of burning of a pyrotechnic material

Indoor firework

Devices of very limited power suitable for indoor use

Japanese style shell

A spherical burst shell. Has perfect symmetry and patterned displays.

Kimuro

A long burning star usually silver or gold. Falls for long distances and colour changes at the end of its flight

Kraft paper

A strong brown paper used for finishing shells and capping.

Lance

Small thin walled tube containing coloured composition.

Lancework

A message or logo made from wooden framework and lances fused and positioned in a specific manner

Leader

An initial fuse of a shell from its fuse to the lifting charge

Lifting charge

A charge beneath an aerial shell that propels the unit into the air

Line rocket

A rocket designed to travel along a wire or rope

Maroon

An explosive device that produces a loud report

Match

A generic term for quickmatch or black match

Mine

A lifting charge with either comet stars or bombette units fired from a mortar tube.

Mini mine

A roman candle which ejects min mine effects rather than comet or bombette units

Misfire

A failure of a firework to perform as designed

Mixture

See Composition

Mortar

A tube used to fire a shell or mine. Open at one and sealed with a bung at the other

Mortar mine

A mine fired from a mortar

Niagara falls

See Waterfall

Nomatch

A specialised system for firework ignition using a shock tube. High-speed simultaneous ignition can be achieved.

No comments: