407:. Once ignited, safety fuses will burn underwater, and have no external flame that might ignite methane or other fuels such as might be found in mines or other industrial environments. Safety fuses are manufactured with specified burn times per 30 cm, e.g. 60 seconds, which means that a length of fuse 30 cm long will take 60 seconds to burn. Manufacturers warn that although every effort is made to ensure uniform burn times, safety fuses are subject to variation depending on conditions and should be used with adequate safety measures in place.
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414:(sometimes Igniter Safety Fuse Electric (ISFE)) lights a main fuse or device when activated by an electric current. They typically consist of a pair of wires leading to a thin resistance wire that heats when current is applied. The resistance wire is covered by a bit of pyrotechnic composition that ignites from the wire heating, providing enough fire to reliably ignite the main fuse via a mechanical connection, or the device directly.
32:
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248:, and consists of the burning core coated with wax or lacquer for durability and water resistance. Early fuses for grenades also consist of a wooden plug with a longitudinal hole filled with a slow burning gunpowder mixture inserted into the grenade. Such fuses were in use until the 18th century. The commercial and military version of a burning fuse referred to as
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used in professional fireworks displays to pass fire nearly instantly between devices that must be physically separated while firing simultaneously, such as a finale rack. Devices which should fire in sequence can be branched from a single master fuse, consisting of quick match spliced onto Visco fuses of various length for time delays.
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Documented evidence suggests that the earliest fuses were first used by the Song
Chinese between the 10th and 12th centuries. After the Chinese invented gunpowder, they began adapting its explosive properties for use in military technology. By 1044 they were using gunpowder in simple grenades, bombs,
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or piped match is a type of black powder fuse that burns very quickly, some hundreds of feet per second. They consist of black match covered with a loose paper wrap (pipe). When lit, the flame propagates quickly down the paper pipe from the hot gases produced by the burning powder. Quick matches are
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The simplest form of fuse is the burning fuse, believed to date back to the 10th century and originating during the medieval
Chinese Song dynasty. This simple fuse consisted of lightweight paper filled with loose gunpowder, and served as a means of delaying ignition in fireworks. This simple form of
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fuse (bumblebee) is an unusual type of component for fireworks. It is made like Visco fuse, but contains a metallic spark composition or other effect instead of black powder. Flying fish can thus perform as a main effect instead of just an initiator. For example, simply lighting a short piece of
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is a delay fuse consisting of a hollow wooden dowel or a paper tube rammed full of black powder. A spolette is glued into the wall of a fireworks shell and ignited by the lift charge that launches the shell into the air. The spolette, after a delay that allows the shell to reach its top of
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guns, or fuses on black powder cannons. Before percussion caps, slow matches were most suitable for use around black-powder weapons because it could be roughly handled without going out, and only presented a small glowing tip instead of a large flame that risked igniting powder supplies
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because they burn at a uniform rate, with an easily visible external flame. Depending on their outer treatment, visco fuses are water resistant and the better quality can burn reliably underwater once lit, since the black powder core provides both its own fuel and
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flying fish on the ground makes it fly through the air, seeming to swim in random directions, while emitting sparks and noise. An aerial shell loaded with many such pieces results in a beautiful myriad of pieces flying and sparking high in the air.
280:, thereby starting an explosive chain reaction to detonate a larger more stable main charge. Safety fuses are typically colored green or black (military) or fluorescent orange (commercial) to distinguish them from
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is a type of fuse consisting of cotton string coated with a dried slurry of black powder and glue. This acts as a simple pass-fire, and was used to fire ancient cannons. They are used today in fireworks
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motors are lit by a type of electric match. Large fireworks displays are launched with complex timing sequences using a computer that energizes electric matches connected to the individual device fuses.
256:) is a textile tube filled with combustible material and wrapped to prevent external exposure of the burning core. Safety fuses are used to initiate the detonation of explosives through the use of a
160:) is the part of the device that initiates function. In common usage, the word fuse is used indiscriminately. However, when being specific (and in particular in a military context), the term
750:
Geibig, Alfred (2012), "Spreng- und
Streugeräte, Schneide- und Fragmentierungsprojektile" [Explosive and Scattering Devices, Cutting and Fragmentation Projectiles],
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trajectory, ignites the shell's main effect(s). The tough wood construction ensures that the fuse burns reliably despite the explosive force and acceleration of the launch.
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or other waterproofing agent, and having an outer wrapper of tough textile or plastic. They are made in a standard diameter designed to be crimped into
352:(wood splints covered with ground plant pith or dung and then saturated with nitrate) used for lighting consumer fireworks are a type of slow match.
650:, Henderson, John E., "Dual Safety Grenade Fuze", published 1969-09-29, issued 1971-11-09, assigned to Hamilton Watch Company
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operations, to provide a time-delay before ignition, and they more often than not are used to initiate an explosive
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Die Macht Des Feuers: Ernstes
Feuerwerk Des 15.-17. Jahrhunderts Im Spiegel Seiner Sächlichen Überlieferung
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This article is about simple fuses for detonating explosives. For military munitions fuzes, see
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is used when referring to a more sophisticated ignition device incorporating mechanical and/or
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Might and fire: an object-based survey of serious fireworks of the 15th to the 17th centuries
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548:. Vol. I & II (reprint ed.). Hollywood, California: Angriff Press. p. 6.
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672:(Report). U.S. Army Defense Ammunition Center and School. March 1996. ADA312253.
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780:, Wilmington, Delaware, E.I. DuPont de Nemours and Company, Inc., 1969, pp 97-99
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758:] (in German), Coburg: Kunstsammlungen der Veste Coburg, pp. 177–226,
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with one or more textile overwraps. The outer layers may be coated with wax or
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Ammunition
Peculiar Equipment (APE) 1955 Grenade Fuze Tester MIL-STD-398 Test
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describes a simple pyrotechnic initiating device, like the cord on a
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for water resistance. These fuses are widely used in modern
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739:. Buckinghamshire: CIT Printing Services Ltd. p. 3.
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http://www.janes.com/extracts/extract/jmvl/del02063.html
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burning fuse can still be found today in many modern
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Device that initiates sudden release of heat and gas
56:. Unsourced material may be challenged and removed.
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572:. Army Technology. 2011-06-15. Archived from
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778:DuPont Blaster's Handbook, Fifteenth Edition
328:is a very slow-burning fuse consisting of a
268:Modern day safety fuses are often used in
244:. A version of this simple fuse is called
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116:Learn how and when to remove this message
336:rope saturated with an oxidizer such as
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525:TM 31-210 Improvised Munitions Handbook
296:Fuses are found in pyrotechnics, model
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720:: CS1 maint: archived copy as title (
546:The Chemistry of Powder and Explosives
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54:adding citations to reliable sources
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629:. Freepatentsonline.com. 1977-12-20
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544:Davis, Tenney L. (1943).
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225:A burning length of fuse
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737:The Gunpowder Industry
381:nitrocellulose lacquer
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65:"Fuse" explosives
597:. Fas.org. 2008-05-30
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455:Anti-handling device
311:, and many forms of
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148:device, or military
50:improve this article
595:"Chapter 14 Fuzing"
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817:Song dynasty
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475:Contact fuze
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419:model rocket
397:black powder
385:pyrotechnics
377:black powder
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48:Please help
43:verification
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500:Safety fuse
470:Candle wick
465:Black match
426:flying fish
393:safety fuse
365:quick match
357:black match
250:safety fuse
166:firecracker
146:pyrotechnic
797:Detonators
791:Categories
707:2008-08-03
648:US 3618522
633:2013-09-14
601:2011-11-12
580:2011-11-12
531:References
510:Thermalite
505:Slow match
373:visco fuse
326:slow match
246:visco fuse
197:fuze on a
176:electronic
134:smoke bomb
106:March 2008
76:newspapers
807:Gunpowder
515:Time bomb
442:saucisson
401:asphaltum
342:matchlock
313:fireworks
302:matchlock
286:Primacord
278:detonator
242:fireworks
231:Gunpowder
142:explosive
716:cite web
674:Archived
449:See also
434:spolette
388:oxidant.
348:Today's
305:firearms
284:such as
274:military
199:sea mine
195:acoustic
191:magnetic
150:munition
480:Detcord
345:nearby.
307:, some
298:cannons
217:History
203:grenade
182:for an
90:scholar
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334:cotton
270:mining
205:fuze,
140:In an
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754:[
701:(PDF)
694:(PDF)
677:(PDF)
670:(PDF)
416:Estes
350:punks
319:Types
292:Usage
264:Fuses
209:, or
97:JSTOR
83:books
760:ISBN
722:link
550:ISBN
440:The
330:hemp
272:and
184:M107
171:fuze
162:fuse
158:fuze
156:(or
154:fuse
152:, a
69:news
21:Fuze
410:An
332:or
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