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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.
Stand-off brackets: Dictated by OSHA Standard 1910.27(c)(4) stand-off brackets must be at least 7" (180 mm) longer than the farthest obstruction for clearance on the back side of ladder. This means that if there is a 4" (100 mm) gutter projecting from the side of a building, a fixed ladder would have to have standoff brackets that were at least ...
Handheld fire suppression device designed to be thrown into needed area. Fit stands for Fire Interruption Technology. Effective against Class A, B, or C fires. [3] FFFP Fluoroprotein film forming foam. Fly The moving portions of an extension ladder. Fog nozzle A nozzle that discharges water in small droplets.
A pilot ladder has specific regulations on step size, spacing and the use of spreaders. It is the use of spreaders (long treads that extend well past the vertical ropes) in a pilot ladder that distinguishes it from a Jacob's ladder. When not being used, the ladder is stowed away, usually rolled up, rather than left hanging.
A 2.5-ton house jack that stands 24 inches from top to bottom fully threaded out. A house jack, also called a screw jack, is a mechanical device primarily used to lift buildings from their foundations for repairs or relocation. A series of jacks is used and then wood cribbing temporarily supports the structure. This process is repeated until ...
Similarly, Ladder Company 10 was founded on October 20, 1865, [9] starting at 28 Ann Street and housed for a time at 193 Fulton Street [10] alongside Engine Co. No. 29 before eventually moving to Liberty Street on July 1, 1984. The Ten House is unique among the 220 FDNY firehouses as it is one of only two where both an engine and ladder company ...
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