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Fire Flapper (tool)
A flapper is a wildland firefighting tool that resembles a broom or a leaf rake with wide, overlapping metal bristles in the form of a hand fan. It is also called a swatter or a beater. It is designed for extinguishing minor fires in rural areas such as heaths. A flapper is built with a long handle and a series of lamellae which allows firefighters to stand well back from the fire. The lamellae are constructed in either rubber or steel, though practically any other fire-resistant material could be used. The fire is attacked from the upwind side by lightly swatting out the flames or embers with the thick flap. When the flapper hits the ground, the oxygen supply to the fire is stopped and the fire will be extinguished. Where ground cover is short, the flapper can be dragged along the fire edge to smother the fire. If used too hard it can add more oxygen to the fire. It is often recommended to either hose water on the area or keep it under observation, as there will always be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flame
A flame (from Latin '' flamma'') is the visible, gaseous part of a fire. It is caused by a highly exothermic chemical reaction taking place in a thin zone. When flames are hot enough to have ionized gaseous components of sufficient density they are then considered plasma. Mechanism Color and temperature of a flame are dependent on the type of fuel involved in the combustion, as, for example, when a lighter is held to a candle. The applied heat causes the fuel molecules in the candle wax to vaporize (if this process happens in inert atmosphere without oxidizer, it is called pyrolysis). In this state they can then readily react with oxygen in the air, which gives off enough heat in the subsequent exothermic reaction to vaporize yet more fuel, thus sustaining a consistent flame. The high temperature of the flame causes the vaporized fuel molecules to decompose, forming various incomplete combustion products and free radicals, and these products then react with each other and wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pulaski (tool)
The Pulaski is a special hand tool used in fighting fires, particularly wildfires, which combines an axe and an adze in one head. Similar to a cutter mattock, it has a rigid handle of wood, plastic, or fiberglass. The Pulaski is used for constructing firebreaks, able to both dig soil and chop wood. It is also well adapted for trail construction, and can be used for gardening and other outdoor work for general excavation and digging holes in root-bound or hard soil. The axe blade of the Pulaski is the primary cutting edge, while the adze blade is secondary; this is the opposite of the cutter mattock, in which the adze blade is the larger of the two. The invention of the Pulaski is credited to Ed Pulaski, an assistant ranger with the United States Forest Service in 1911. Similar tools were introduced in 1876 by the Collins Tool Company. A tool that serves the same purpose was used in the Alps for over 300 years for planting trees ( Wiedehopfhaue) or the dolabra in ancient Rome ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
McLeod (tool)
A McLeod tool (or rakehoe) is a two-sided blade — one a rake with coarse tines, one a flat sharpened hoe — on a long, wooden handle. It is a standard tool during wildfire suppression and trail restoration. The combination tool was created in 1905 by Malcolm McLeod, a United States Forest Service ranger at the Sierra National Forest. The McLeod was originally designed to rake fire lines with the teeth and cut branches and sod with the sharpened hoe edge. It is also used for finishing and maintaining hiking trails. Common issues Because of its large and sharp head, the McLeod is an awkward tool to transport and store, and is often considered undesirable. Some McLeod tools are made with a removable blade to partially mitigate this problem. Ideally, it is carried with the tines pointing toward the ground for safety, with a sheath over the cutting edge. The mass distribution makes it difficult to carry in this orientation consistently. See also * Driptorch * Fir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fire Triangle
The fire triangle or combustion triangle is a simple model for understanding the necessary ingredients for most fires. The triangle illustrates the three elements a fire needs to ignite: heat, fuel, and an oxidizing agent (usually oxygen). A fire naturally occurs when the elements are present and combined in the right mixture. A fire can be prevented or extinguished by removing any one of the elements in the fire triangle. For example, covering a fire with a fire blanket blocks oxygen and can extinguish a fire. In large fires where firefighters are called in, decreasing the amount of oxygen is not usually an option because there is no effective way to make that happen in an extended area. Fire tetrahedron The fire tetrahedron represents the addition of a component in the chemical chain reaction, to the three already present in the fire triangle. Once a fire has started, the resulting exothermic chain reaction sustains the fire and allows it to continue until or unless at leas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Driptorch
A driptorch is a tool used in wildfire suppression, controlled burning, and other forestry applications to intentionally ignite fires by dripping flaming fuel onto the ground. Description The driptorch consists of a canister for holding fuel with a handle attached to the side, a spout with a loop to prevent fire from entering the fuel canister, a breather valve to allow air into the canister while fuel is exiting through the spout, and a wick from which flaming fuel is dropped to the ground. The wick is ignited and allows the fire to be directed as needed. The spout and wick can be secured upside down inside the canister for storage or transport. Typically the fuel used is a mixture of gasoline and diesel with a ratio of 30% to 70% respectively, although, the amounts may need to be adjusted according to fuel and weather conditions. Sometimes heavier oils are used to increase adhesion of the liquid fuel to the vegetation, and increase burn time and heat. Variations of the dri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water Tender
A water tender is a type of firefighting apparatus that specialises in the transport of water from a water source to a fire scene.Pelastusajoneuvojen yleisopas: säiliöauto (A general guide for rescue vehicles: water tender) (In Finnish). Ministry of the Interior, Finland. Retrieved on April the 28th, 2007 Water tenders are capable of drafting water from a , or . This class of apparatus does not necessarily have enough pumping c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water Cannon
A water cannon is a device that shoots a high-velocity stream of water. Typically, a water cannon can deliver a large volume of water, often over dozens of meters. They are used in firefighting, large vehicle washing, riot control, and mining. Most water cannons fall under the category of a fire monitor. Firefighting Water cannons were first devised for use on fireboats. Extinguishing fires on boats and buildings near the water was much more difficult and dangerous before fireboats were invented. The first fireboat deployed in Los Angeles was commissioned on 1 August 1919. The first fireboat in New York City was ''Marine 1'', deployed 1 February 1891. There may have been other fireboats elsewhere even earlier. Fire trucks deliver water with much the same force and volume as water cannons, and have even been used in riot control situations, but are rarely referred to as water cannons outside this context. Riot control The first truck-mounted water cannon was used for riot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fire Engine
A fire engine (also known in some places as a fire truck or fire lorry) is a road vehicle (usually a truck) that functions as a firefighting apparatus. The primary purposes of a fire engine include transporting firefighters and water to an incident as well as carrying equipment for firefighting operations. Some fire engines have specialized functions, such as wildfire suppression and aircraft rescue and firefighting, and may also carry equipment for technical rescue. Many fire engines are based on commercial vehicle chassis that are further upgraded and customised for firefighting requirements. They are normally fitted with sirens and emergency vehicle lighting, as well as communication equipment such as two-way radios and mobile computer technology. The terms ''fire engine'' and ''fire truck'' are often used interchangeably to a broad range of vehicles involved in firefighting; however, in some fire departments they refer to separate and specific types of vehicle. Des ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forest Fire
A wildfire, forest fire, bushfire, wildland fire or rural fire is an unplanned, uncontrolled and unpredictable fire in an area of combustible vegetation. Depending on the type of vegetation present, a wildfire may be more specifically identified as a bushfire( in Australia), desert fire, grass fire, hill fire, peat fire, prairie fire, vegetation fire, or veld fire. Some natural forest ecosystems depend on wildfire. Wildfires are distinct from beneficial human usage of wildland fire, called controlled burning, although controlled burns can turn into wildfires. Fossil charcoal indicates that wildfires began soon after the appearance of terrestrial plants approximately 419 million years ago during the Silurian period. Earth's carbon-rich vegetation, seasonally dry climates, atmospheric oxygen, and widespread lightning and volcanic ignitions create favorable conditions for fires. The occurrence of wildfires throughout the history of terrestrial life invites conjecture that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxygen
Oxygen is the chemical element with the symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds. Oxygen is Earth's most abundant element, and after hydrogen and helium, it is the third-most abundant element in the universe. At standard temperature and pressure, two atoms of the element bind to form dioxygen, a colorless and odorless diatomic gas with the formula . Diatomic oxygen gas currently constitutes 20.95% of the Earth's atmosphere, though this has changed considerably over long periods of time. Oxygen makes up almost half of the Earth's crust in the form of oxides.Atkins, P.; Jones, L.; Laverman, L. (2016).''Chemical Principles'', 7th edition. Freeman. Many major classes of organic molecules in living organisms contain oxygen atoms, such as proteins, nucleic acids, carbohydrates, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steel
Steel is an alloy made up of iron with added carbon to improve its strength and fracture resistance compared to other forms of iron. Many other elements may be present or added. Stainless steels that are corrosion- and oxidation-resistant typically need an additional 11% chromium. Because of its high tensile strength and low cost, steel is used in buildings, infrastructure, tools, ships, trains, cars, machines, electrical appliances, weapons, and rockets. Iron is the base metal of steel. Depending on the temperature, it can take two crystalline forms (allotropic forms): body-centred cubic and face-centred cubic. The interaction of the allotropes of iron with the alloying elements, primarily carbon, gives steel and cast iron their range of unique properties. In pure iron, the crystal structure has relatively little resistance to the iron atoms slipping past one another, and so pure iron is quite ductile, or soft and easily formed. In steel, small amounts of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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