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Engine Company 21 in 1873. Engine Company 21, organized in 1872, was the first all-black fire company in the Chicago Fire Department.The fire pole was invented by members of the company in 1888, and after inventing it, Engine 21 had the fastest response time in the city.
The red engine is used by CAL FIRE, the yellow engine is used by the Bureau of Land Management, and the green engine is used by the United States Forest Service. Due to the need for firefighting apparatus to be highly visible, they are, similar to other emergency vehicles, painted in conspicuous colors, such as white, yellow, orange, or, most ...
Thomas Paine introduced an entirely new type of engine design, one that bore more resemblance to a water wheel than a conventional engine. In Paine's engine, a series of cup-like combustion chambers were arranged around a wheel. As the wheel turned, each cup received a small amount of gunpowder from a central container and was then lit. [26]
The EGP released a document proclaiming that the burning was an example of the racial persecution of the Indigenous People and that the EGP's struggle was related to this. This intensification of the EGP's activities led to the Guatemalan army establishing a presence in the area, and using kidnappings and torture to intimidate the population.
5-inch (13 cm) flex suction hose with Storz fittings, mounted on an engine. Flexible suction hose (Flex suction or suction hose), not to be confused with hard suction hose in U.S., is a specific type of fire hose used in drafting operations, when a fire engine uses a vacuum to draw water from a portable water tank, pool, or other static water source.
Black powder rocket propellant is very similar in makeup to old-fashioned gunpowder. The main difference is the presence of a binder, usually dextrin. The commonly used Estes model rocket engines are made with black powder propellant. [2] Black powder propellant must be pressed very tightly in order to function well.
The engine compressed the air/fuel mixture before combustion, unlike the other atmospheric engines of the time. The engine was a single-cylinder unit that displaced 6.1 dm 3, and was rated 3 PS (2,206 W) at 180/min, with a fuel consumption of 0.95 m 3 /PSh (1.29 m 3 /kWh).
Recognising the lack of publications on fire engines in the English language, Braidwood published what is regarded as one of the first textbooks on the science of fire engineering in 1830: On the Construction of Fire Engines and Apparatus. [13] Braidwood also authored Fire prevention and fire extinction, [14] published posthumously in 1866.