Spiral slide fire escape

Claim 1

A spiral fire escape, comprising a vertical tube containing a spiral slide, said tube being mounted adjacent a vertical wall forming the sides of vertically aligned rooms, including an access door from each room and a corresponding adjacent aligned doorway formed through said tube, wherein corresponding aligned doors and doorways are of equal vertical dimension and are disposed between spaced adjacent portions of said slide providing unobstructed access into said slide, in further combination with a hinged exit door at the slide bottom, said door including a latch mounted slidably on the inside of said door, said latch being slidable from a normally locked position to an open position by means resiliently retaining the latch in the locked position in combination with a lever pivotally mounted on said door engaging said means, said lever being normally in a position corresponding to the locked position of said latch and movable to position causing said means to move the latch to said open position upon impact of a person descending from said slide wherein the exit door comprises adjacent similar portions pivotable about vertical axis having opposing brackets with vertically aligned holes, said latch having a rod normally extending through said holes and an upper end in engagement with said means, wherein said lever is pivotally mounted about a horizontal pin on said door and includes a lower impact bumper facing the escaping person, said means comprising a leaf spring engaging the bumper at one end and the upper end of said rod at the opposite end of the spring.