US471145A - Fire-escape - Google Patents

Description

(No Model.)

0. SCHNEIDER. FIRE ESCAPE.

Patented Mar. 22; 1892.

Nrrnn STATES PATENT Grrrcn.

CHRISTIAN SCHNEIDER, OF JAMAICA PLAIN, MASSACHUSETTS.

Fl RE-ESCAPE.

SPECIFICATION forming part of Letters Patent No. 471,145, dated March 22, 1892. Application filed September 18,1891. Serial No- 406,105. (No model.)

To aZZ whom it may concern:

Be it known that I, CHRISTIAN SCHNEIDER,

I of Jamaica Plain, in the county of Suffolk,

State of Massachusetts, have invented certain new and useful Improvements in Fire-Escapes, of which the following is adescription sufficiently full, clear, and exact to enable anyone skilled in the art or science to which said invention appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a sectional elevation representing a portion of a window-casing, showing my improved fire-escape in position for use; Fig. 2, an elevation, enlarged, showing the ree one of the face-plates being removed; Fig. 3, an edge elevation of the reel; Figs. 4 and 5, views illustrating certain details of construction.

Like letters and figures of reference indioate corresponding parts in the different figures of the drawings.

My invention relates especially'to an ad- 3' ustable fire-escape attachable to the windowcasings of buildings, and it consists in certain novel features hereinafter fully set forth and claimed, the object being to produce asimpler, cheaper, and more effective device of this character than is now in ordinary use.

The nature and operation of the improvement will be readily understood by all conversant with such matters from the following explanation:

In the drawings, A represents a windowcasing. By means of bolts 1), passing horizontally through the casing, a hinge-loop d is secured to the inner face thereof. A rightangled crane B is provided with pintles f, which are adapted to work in the hinge-loops d, whereby said crane may be adjusted in the window.

The reel 0 comprises two face-plates g, secured together by horizontally-arranged bolts 72. A similar plate 1' is disposed centrally on the bolts h parallel with the face-plates g. A horizontally-arranged shaft j is journaled centrally in the plates g 2'. To the top of the plate 1' a loop is secured and is adapted to receive the end of the horizontal arm m of the crane B. A lip 19 is formed on said arm to prevent said reel sliding against the wall of the building, and said loop is held in position by a set-screw q or other suitable means. Two belts r tare wound on the shaft j, respectively, in opposite directions and on opposite sides of the central plate 2', the inner ends of said belts being secured by a screw 0 (see Fig. 5) to the shaft j. The lower bolts h are each provided witha loose sleeve 10, which acts as a friction-roll for the belts which pass in opposite directions thereover, as shown in Fig. 2. On the bolt h vertically swinging arms a: on are pivoted by their lower ends, each set of arms being respectively disposed at opposite sides of the bolts 7" t. The arms a: on (see Fig. 2) are provided with a series of pivoted openings y,whereby they may be adjusted longitudinally on said pivot. The outer or free ends of said arms are provided with a series of openings ,2, and connecting the arms of each set a: no there are two friction-rolls 15, between which the belts pass. For example, the belt r passes from its coil onthe reel-shaft partially around the lower roll 15 between said rolls, an d upward around the coil, thence over the sleeve w. The belti passes between its friction -rolls 15 in the opposite direction and downward from the sleeve w at the opposite side of the bolt h. Each belt 7 t is provided on its outer end with a carriage D D of suitable size to hold a person. Said carriages are connected by a cord 16.

In the use of my improvement the crane B is swung upward from the arm into the position shown in Fig. l and the reel 0 adjusted thereon. The operator steps from the easing into the carriage D. The weight thus disposed in the carriage causes the beltr to bind the lower friction -roll 15 tightly against the belt-coil on the shaft j, the arm as swinging upward to permit this. Sufficient tension is thus exerted on the belt 1" to retard the unwinding of said belt from its shaft. As the shaft rotates in unwinding the belt'r, the companion belt t, wound in the opposite direction, is rolled onto said shaft.

By adjusting the friction rolls 15 in the openings 2 of the pivoted arms 00 or x the tension on the belt may be regulated to resist any desired weight. Moreover, as one of the cars D or D in ascending passes the companion car the operator, by grasping the cord 16 and exerting very little strength thereon, can retard or entirely stop the movement of 5 openings :1 thereof.

his car in a manner which will be readily understood Without a more explicit description.

The leverage of the arms :1: a" may be shortened by disposing the pivoted bolt h in the The tension on the triotion-rolls 15 may be lessened by separating said rolls by means of the openings 7'.

Having thus explained my invention, what I claim is- 1. In a fire-escape, the reel O, provided with the belts a t, in combination with the arms 00 0c, pivoted in said reel and provided with adjustable rollers 15, all being arranged to operate substantially as described.

2. In a fire-escape, the frame 13, in combination with the reel C, detachable therefrom and provided with the rotary shaftj, the belts

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