Life-saving open-chute for building, has slope lesser than forty-five degree and rounded edges for controlling sliding of its user, and is connected to pivoting ladder of fireman motor truck and directed by crane of truck

摘要

The open-chute has a slope lesser than 45 degree and rounded edges for controlling sliding of its users. The open-chute is connected to a pivoting ladder of a fireman motor truck and directed by crane of the truck and to be placed on a balcony or a window of a building.