英和和英

出典:『Wikipedia』 (2011/04/30 19:22 UTC 版)

英語による解説

引用

The hook ladder (also called a pompier ladder) was once a very important tool of the fire department as firefighters could theoretically reach every floor of a building with it. It consists of a simple 2.5-metre ladder with a long, flat hook on its top, with serrations on the underside which gripped the sill. A firefighter denied use of stairs inside a tall structure would lean out a window with the pompier ladder and swing the hook through the window above them, latching the hook to the window stool. They would then climb up the ladder, enter the window above, and repeat the process for as many storeys as necessary. The hook ladder was previously used by fire departments all over the world, but its use has been discontinued in several countries as turntable ladders and fireproof stairwell construction have provided safer and more effective alternatives for ascent.