US732645A - Fire-escape. - Google Patents

Description

- PA ENT-En JUNE 30, 19 03;

' W. H. LOGAN. FIRE ESCAPE. Arrmonlon 'IILBD .APR. 15', 1903.

no menu.

INVENTOR I W1 T/VESSE;

UNITED STATES Patented Juno, 1903 PATENT OF ICE.

WILLIAM HUME LOGAN, OF LOUISVILLE, KENTUCKY, ASSIGN OR TO KIRKER- BENDER FIRE ESCAPE COMPANY, OF LOUISVILLE, KENTUCKY.

FIRE-ESCAPE,

SPECIFICATION forming part of Letters Patent No. 732,645, dated. June 3t), 1903.

Application filed April 15. 1903.

To all whom it may concern.-

Be it known that LWILLIAM HUME LOGAN,

a citizen of the United States, residing at Louisville,in the county of J eiferson and State of Kentucky, have invented certain new and useful Improvements in Fire-Escapes; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

My invention relates to fire-escapes, and more particularly to that class of fire-escapes which comprise a spiral way or slide inclosed within a vertical cylinder or tower.

The object of my invention is generally to improve the construction and operation of this class of fire-escapes; and with this object in view my invention consists in the improved construction or arrangement and combination of parts hereinafter fully described and afterward specifically pointed out in the claims.

In the accompanying drawings, Figure l is a perspective view of part of a fire-escape constructed in accordance with my invention, parts being broken away to more fully illustrate the construction. Fig. 2 is a detail sectional view on a horizontal plane cutting through the central supportand spiral slideway. Fig. 3 is an end view of the sheet forming the central support after the edges have been bent in and before bending in in the center. Fig. 4 is a detail view of the central support ready to receive the slideway. Fig. 5 is a view similar to Fig. 2, illustrating a slightly-modified form. Fig. 6 is a detail view showing the edges of the central support bent out. Fig. 7 is a horizontal cross-section thereof. Fig. 8 is a view of a modification.

Like letters of reference mark correspondin g'parts wherever they appear in the several figures of the drawings.

Referring to the drawings by letters, Aindicates a vertical cylinder, column, or tower, which may be erected in a building or outside Serial No. 152,751. (No model.)

thereof and adjacent thereto in any suitable 5 manneigaccessbeing' had to the interior thereof at the top or at suitable intervals by any known or approved means, the construction of the tower or the means of access to its interior forming no part of the present invention. In the interior of the tower is erected a spiral slideway B, composed of sheet metal, whose outer edge rests against the inner surface of the tower and is secured thereto in any suitable manner. slideway B is secured to a central twisted support D, composed of sheet metal, prepared by first bending the edges inward, as at E, until they reach the main body, leaving smooth or somewhat rounded surfaces, and then bending or doubling them upon themselves at the center, as atF, the bent or folded edges meeting, as shown. The inner edge of the slideway is placed between the folds of the central support D and secured by rivets 7o G. It will of course be understood that the central support will be twisted to correspond with the spirally-arranged inner edge of the slideway. In the construction shown in Fig. 4 the metal of the central support D is bent or donbled upon itself at the center and then bent to form to receive the edge of the slideway B,

the folded center being placed upon the top or face of the spiral slideway and presenting a rounded edge or surface, the same as in the other form, the object being to avoid expos ing a sharp edge of'the central support D upon the face of the slideway, thus insuring I the users of the slideway against injury to the 8 5 person or clothing by contact with such rough edges in sliding down the slideway. I

In the modification shown in Fig.8 the inner edge of the slideway is, bent back upon itself, which sufliciently stifiens the same, so that the central support may be entirely dispensed with, thus greatly simplifyinglthe entire arrangement.

The construction and operation of the invention will be obvious from the foregoing description, taken in connection with the illustrations, and I desire it to be understood that I hold that any slight changes in the construc- The inner edge of the 6o tion of the various parts, such as might be made by the ordinary mechanic after inspecting my invention, would be clearly included within the limit and scope of my in- Vention.

Having thus described the construction and operation of my invention, what 'I claim as new, and desire to secure by Letters Patent of the United States, is-

1. In a fire-escape, the combination with a cylinder or tower, of a spiral slideway therein, composed of sheet metal, secured to the inner surface thereof, and a central support consisting of sheet metal, doubled upon itself, and then doubled over the inner edge of the slideway and secured thereto, substantially as described.

2. In a fire-escape, the combination with a cylinder or tower, of a spiral slideway therein, composed of sheet metal secured to the inner surface thereof, and a central support consisting of sheet metal, doubled upon itself, and then doubled over the inner edge of the slideway and secured thereto, the edge of the support on the one face of the slideway being folded to form a rounded or smooth edge or surface, substantially as described.

3. In a fire-escape, the combination with a cylinder or tower, of a spiral slideway therein composed of sheet metal secured to the inner surface thereof, and a central support consisting of sheet metal doubled inward at the edges and then doubled over the inner edge of the slideway presenting rounded edges upon the front and rear, or upper and lower face of the slideway, and secured to said inner edge, substantially as described.

t. In a fire-escape, the combination with the cylinder or tower, of a spiral slideway therein composed of sheet metal secured to the inner surface thereof, the inner edge of said slideway being folded back upon itself to stiffen the same, substantially as described.

In testimony whereof I aflix my signature in presence of two witnesses.

WILLIAM HUME LOGAN.

\Vitnesses:

Ross S. DOWLING, ASA '1. IIoRRELL.

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