Fire escape – ladder – or scaffold – Chute or escape tower for personnel
Patent
1994-03-22
1998-09-15
Chin-Shue, Alvin C.
Fire escape, ladder, or scaffold
Chute or escape tower for personnel
A62B 120
Patent
active
058066241
DESCRIPTION:
BRIEF SUMMARY
This invention relates to an escape system. More particularly, this invention relates to a stocking-type escape device employed on the outside of a building.
As is known, various types of escape devices of stocking-type have been known, for example as described in U.S. Pat. No. 4,595,074. In such escape devices, the escape device has been constructed of tubular form with annular reinforcing elements at vertically spaced apart points. In addition, pieces of netting are disposed along the length of and within the escape device in an oblique manner so as to form sideways for a user.
Still other types of escape devices have been described in U.S. Pat. Nos. 4,162,717 and 3,977,495 which are of chute form which can be hanged by and from hardware outside a building. British Patent 1,378,561 describes a similar structure.
The escape system of the present invention comprises a series of wall openings along a house wall and a stocking extending axially along the house wall, which is of cloth material, preferably net-formed or meshed cloth material, and which is extendable from an inactive, axially compacted position, to an active use position extended axially in the height direction in a path along the wall openings in the house wall where the stocking is provided with a corresponding series of access openings to the interior of the stocking, and where each access opening is arranged in an intermediate space between a pair of mutually separated bracing rings, which are designed for bracing the stocking at corresponding height levels in the stocking, while guide means, which are arranged in a path internally in the stocking, extend separately from bracing ring to bracing ring and at the access opening form a partition between an external passage via the access opening and an internal passage in the stocking along the guide means.
Generally the invention relates to a flight system where there is employed a stocking-like escape device hanging substantially vertically downwards along a building wall. The escape device permits the flight of persons outside the normal escape routes of the building and allows the passage of persons inwardly into and outwardly from the escape device, at opposite ends of the escape device (upper and lower end) as well as in positions between the ends. The escape device is more especially of the kind which is illustrated in U.S. Pat No. De. 149,760 and is particularly designed for use in connection with multi-storied buildings, such as hotels, business buildings, housing complexes, etc. However the invention can also be readily adapted for other applications, for example for use on board passenger ships or on board sea-based (off shore) dwelling rigs and for similar purposes. As regards particularly high buildings it is known, in connection with rescue stockings according to U.S. Pat. No. De. 149,750, to employ materials and constructions, which with respect to tensile strength and elastic deformations, do not place any practical limitation on the stretched length of the stocking in connection with evacuating high houses. Nevertheless it can be appropriate for practical reasons to employ two or more mutually separated, but functionally and constructionally cooperating escape devices, which can span over their respective height-wise following floors, with the possibility of access from escape device to escape device, if necessary via suitable transfer arrangements between these.
In a condition ready for use the escape device is extended in a state hanging vertically downwards from an upper fastening to a lower fastening on the outer side of the building. With particularly high buildings where two or more escape devices are employed height-wise one after the other, the separate escape devices can for example be arranged vertically aligned or laterally displaced relative to each other.
In order to ensure an accurate path of the stocking along the wall of the building, with a correct orientation of the access openings relative to the wall openings in the wall of the building, the escape device is
REFERENCES:
patent: 99399 (1870-02-01), Burditt
patent: 275083 (1883-04-01), Schuett
patent: 482274 (1892-09-01), Pride
patent: 797012 (1905-08-01), McPheeters
patent: 3435492 (1969-04-01), Banas
patent: 4167224 (1979-09-01), Kinase et al.
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