US1043959A - Fire-escape. - Google Patents

Description

D. MLLER.

FIRE ESCAPE.

APPLICATION FILED DEG. l5, 1911. 1,043,959, Patented Nov. 12, 1912.

2 SHEETS-SHEET l.

coLuMmA PLANDGRAPH cu.. WASHINUTDN, DA

D. MLLER.

' FIRE ESCAPE.

APPLICATION FILED DBG.15, 1911.

Patented Nov. 12, 1912.

2 SHEETS-SHEET 2.

Inventor Witnesses- UNfE S AIES DAVID MLLER, or MOSBACH, GERMANY.

FIRE-ESCAPE.

Specification of Letters Patent.

Patented Nov. 12, 1912.

Application led December 15, 1911. Serial No. 665,985.

To all whom 'it may concern.:

Be it known that I, DAviD MLLER, a subject of the German Emperor', r'esiding atl 16 Zwingerstrasse, Mosbach, Baden, Germany, have invented a certain new and useful Improved Fire-Escape, of which the following is a specification.

rThis invention relates to a fire escape for saving persons from burning buildings.

The device consists of a band which runsl from a winding drum, provided behind a telescoping ladder, over a guide roller provided at the upper end of the ladder and down the front of the ladder to a second winding drum, and which at certain distances apart is provided with pockets for the reception of the persons tox be saved.

1n the drawing is shown a constructional form of the invention.

Figure 1 shows the upper, and Fig. 2 the lower part of the escape in side elevation. Fig. 3 shows the upper part of Fig. 1 to an enlarged scale. Fig. 4 shows a front elevation of the upper part of the device. F ig. 5 shows the lower part of the ladder and the band, also in frontI elevation and Fig. 6 shows a part of the section on the line 6-6 of Fig. 4 to an enlarged scale. Fig. 7 shows parts of the three sections of the ladder in vertical section also to an enlarged scale.

On a circular disk 1 (Fig. 2) which can be rotatably mounted on a transport-able frame are secured two parallel rails 2 on which are seated four pairs of bearing supports 3, 4, 5 and 6. In the supports 3 is mounted a shaft 7 on which are mounted two supports 8 which engage with the lower ends of the telescoping ladder, and at the side thereof are two rope drums 9 (Figs. 2 and To the latter are secured the ends of two ropes 10 pass along the outer sides of the ladder uprights 12, over rollers 13 and 14 provided at the upper ends of said uprights (Figs. 1, 3, 4 and 6) and then down the inner sides of the uprights 12, to the lower ends of which the other ends of said ropes are secured. In the supports 4 (Fig. 2) is mount-ed a shaft 15, on which are mounted two rope drums 16. 0n these are wound two ropes 17 which engage with the lower ends of the ladder uprights 12. In each of the supports 5 and 6 is mounted a shaft 18, on each of which is mounted a drum 19. To these drums are secured the ends of a band 20 and 11 (Figs. 1-6) which (Figs. 1-6) which on the erection of the ladder passes behind the rungs 21 of the ladder, over a guide roller 22, mounted at the upper end of the ladder uprights 12 (Figs. 1, 3 and 4) and then down the front of the rungs 21 of the ladder. On the upper side of this band 20, there are provided at certain distances apart, a number of pockets 23 (Figs. 1, 2, 4, 5 and 6)- and laterally above each two straps 24. The shafts 7, 15 and 1S (Figs. 3) are by means of gearings 25, connected to other shafts 26, mounted in the same supports, which are provided at both ends with cranks 27.

The ladder 12, 21 is erected on the rotation of the shaft 15 by means of the rope drums 16 and the ropes 17. By raising the supports 28 provided at the upper ends of the ladder uprights (Figs. 1 and 3) the erection of the ladder can be facilitated. The extending of the ladder is effected by rotating one shaft 26 by means of the rope drums 9 and the ropes 10 and 11.

For the purpose of saving persons from a burning building, the ladder 12, 21 is eX- tended such a distance that the hooks 29 provided at the upper ends of the ladder uprights 12 (Figs. 1, 3 and 4) come to rest upon the sill of the window of the corresponding story. Then this has been effected, the band 20 by the rotation of the shafts 18 on which the drums 19 are mounted is moved in such manner that one of the pockets 23 comes on the front. side of the ladder 12, 21, and is a short distance from the upper end thereof. The person to be saved now steps from the window sill over the roller 22 into the pocket 23 holding the rails 3Q, which are provided at the upper ends of the ladder uprights 12 and then passes his arms through the straps 24. The pocket 23 is then, by the corresponding rotation of the shaft 19 and the movement of the band 2O allowed to descend such a distance that the person can step out of the pocket to a stage 31 provided above the shaft 19 from which steps lead to the ground. The pocket 23, which is nearest t-he roller 22 is now brought into the position hereinbefore referred to so that another person can step into the pocket and be lowered by means thereof.

On the front of the rungs 21 are provided strips of metal 32 (Figs. 4J?) which pass from the upper to the lower ends of the ,separate parts of the ladder, and on which the band 2O can easily slide when loaded. These strips of met-al 32 similar to the band 20, only cover the left hand side of the rungs 2l so that the right hand half remains i'ree that the firemen can ascend and descend, (Figs. 4: and 5).

lVhat I claim as my invention and desire to secure by Letters Patent is A iire escape comprising a ladder consisting of a number of telescoping parts, a horizontal shaft, around which the ladder pivots, two Winding drums disposed one in front of and the second behind said horizontal shaft, a guiding` roller at the upper end of said ladder, a band, passing from one of the Winding drums, over the said guiding 'tatingthe Winding drums and moving the said band from one drum to the other.

In testimony whereof I have hereunto signed my name to this specification in the presence of tivo subscribing Witnesses.

DAVID MLLER.

Vitnesses AUGUST O. RIMMER, A. O. TITTMANN.

Copies of this patent may be obtained for ive cents each, by addressing the Commissioner of Patents,

Washington, D. C.

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