US258441A - Fire-escape - Google Patents

Description

(No Model.)

J. R. KOONS.

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NITED STATES ArnNr FFICE.

JOHN It. KOONS, on sHIGKsHINNY, PENNSYLVANIA.

FIRE-ESCAPE.

SPECIFICATION forming part of Letters Patent No. 258,441, dated May 23, 1882.

Application filed February 15, 1882. (No model.)

To all whom it may concern Be it known that I, JOHN B. KooNs, of Shickshinny, in the county of Luzerne and State of Pennsylvania, have invented certain usefulImproveinents in Fire-Escapes, of which the following is a full, clear, and exact description.

The object of my invention is to furnish a light and convenient fire-escape, permanently attached to a building in a manner that shall allow its ready manipulation; and to these ends the invention consists in a flexible ladder constructed and arranged as hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a sectional side elevation of a fire-escape constructed in accordance with my invention. Fig. 2 is a partial plan view. Figs. 3 and 4 are detail views, showing the manner the rounds of the ladder are attached. Fig. 5 is detail section of a modification. Figs. 6, 7, and 8 are sectional views, showing modifications of construction.

Referring to Figs. 1 and 2, A is the case or housing, constructed of suitable material, in the form of a long box open at one end.

a a are rods, sustained rigidly within and lengthwise of the box, for guiding and supporting the ladder.

bis a roller, fitted across the open end of the case, for carrying the ladder.

The ladder B consists of side ropes, c a, provided with rounds at at suitable intervals. The rounds are flat loops of half-round iron, placed on the ropes, as shown in Fig. 3, with a fillingstrip, 0, of wood, between the sides. The ends of the loop are clamped by being riveted, or by strapsf, as shown in Fig. 4. The ladder is to be contained in case A, resting on rods a, as shown in Fig. 2. The inner ends of the side ropes, c, are provided with eyes or loops g, engaging the rods a, and at the outer end of the case A the ladder passes over the roller 1).

On the outer end of the ladder is suspended a plate, h, which serves to close the end of case A when the ladder is drawn up, and also as a weight to assist in starting the ladder down. A rope, i, is attached to plate h, so as to hang therefrom in position for securing the lower end of the ladder to the pavement, if necessary.

In case it is not desired to depend on the weight for starting the ladder out, a rope, as shown at in Fig. 1, is provided. This rope extends into the case over a roller, 1, and is secured to the ladder, so that when the rope is drawnupon it will pull the ladder along the rods a. In connection with this rope, a bar, m, Fig. 5, may be provided for forcing the plate h from the end of the case. This bar has forked ends a, that take over rope is in front of aknob or projection thereon, and the bar extends over the roller b, so that the first movement of the ladder, by means of the rope is, carries the end of the bar against the plate h and forces it from its seat.

In Fig. 6,1 have shown a modification in the manner of supporting and guiding the ladder on the rods a in the housing. The rounds (1 project beyond the ladder-ropes, and have forked ends that take on the rods.

For long ladders,when a considerable length of rope 7c is required, 1 provide split loops 0, attached to rounds (I, as shown in Fig. 7, through which loops the rope passes, and is thus kept from sagging. As the rounds reach the roller 1), the rope will draw out of these loops. This figure also shows an arrangement adapted for high buildings to save a useless length of ladder.

p is a rope, attached by loops to the rods (1' in case A, of suitable length, and engaged by an eye, g, on the ladder, so as to allow the ladder to be drawn to the outer end of rope p, where the eye will be arrested by aknob. There are to be two of these ropes p, and they should be equal in length to the distance from the upper window-sill to the roof or other place where the case is secured.

p The case may be secured on the roof or beneath the cornice of the building. When there is room the ladder may be reeled and the reel contained in asquare box, as shown in Fig. 8.

and the rounds slide therein, in which case the last round should be stronger than the others, and provided with projecting ends to take against stops when the ladder is fully drawn out.

Having thus fully described my invention, I

. The supports a may be of grooved or U form claim as new and desire to secure by Letters 3. The combination of thecase A, rodsa, lad- 1atentder B, and rope 7r, substantially as shown and I5 1. In fire'escapes, the rope ladder B, eomdescribed. bined with the case A, prox'ided with rods a, 4. The split loops 0, combined with ladder 5 substantially as shown and described. B, case A, and rope is, substantially as and for 2. In a fire-escape, the oombination,with the the purposes set forth. ro )es 0 of the ladder ofthe rounds d composed 5. The lengthenin -ropes combined with 20 l 7 a a p7 of looped metal strips surrounding; the said the case A and ladder B, substantially in the ropes,the filling-pieces e, ofwood,and the straps manner and for the purposes set forth.

:0 f, for securing the filling-piece between the JOHN R. KOONS.

looped strips and clamping the ends of the \Vitnesses: I said strips to the ropes, substantially as here- JAMES CRooKETT, in shown and described. E. L. XVILKINsoN.

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