Search results
Results from the WOW.Com Content Network
The terms "mast" and "tower" are often used interchangeably. However, in structural engineering terms, a tower is a self-supporting or cantilevered structure, while a mast is held up by stays or guy-wires. [1] A mast is a guyed mast, a thin structure without the shear strength to stand unsupported, that uses attached guy lines for stability ...
An extension ladder. A ladder is a vertical or inclined set of rungs or steps commonly used for climbing or descending. There are two types: rigid ladders that are self-supporting or that may be leaned against a vertical surface such as a wall, and rollable ladders, such as those made of rope or aluminium, that may be hung from the top.
A tower is a tall structure, taller ... The term "tower" is also sometimes used to refer to firefighting equipment with an extremely tall ladder designed for use in ...
May also carry other portable ladders and tools. Aerial ladder A rotating, power-operated (usually hydraulically) ladder mounted on a self-propelled automotive fire apparatus. [1] Aerial ladder platform A hydraulic aerial device which combines an aerial ladder with a personal carrying platform supported at the end of a ladder. [1] Air ...
A vehicle used by GIGN featuring a mechanical assault ladder mounted on its roof, essentially a modern version of a siege tower. In modern warfare, some vehicles used by police tactical units, counterterrorists, and special forces can be fitted with mechanical assault ladders with ramps. These are essentially modernized siege towers with ...
A ladder company can operate three types of ladder trucks: a rear mounted aerial ladder truck, equipped with a 100' aerial ladder mounted at the rear of the apparatus; a tower ladder truck, equipped with either a 75' or 95' telescoping boom and bucket mounted in the center of the apparatus; and a tractor-drawn aerial ladder truck known as a ...
A quintuple combination pumper or quint is a fire-fighting apparatus that serves the dual purpose of an engine and a ladder truck. “Quintuple” refers to the five functions that a quint provides: pump, water tank, fire hose, aerial device, and ground ladders. [1] Tillers and tractor-drawn aerials also have quint features, and are dubbed ...
Tower Ladder (Devils Tower National Monument) W. Wittgenstein's ladder This page was last edited on 5 September 2019, at 13:28 (UTC). Text is available under the ...