US1500943A - Fire escape - Google Patents

Description

July 8 1924. 1,500,943

' J. D. JQ LQKQVSKI FIRE ESCAPE Filed July 12. 1923 WITNESSES INVENTOR ATTORNEYS Patented July 8, .1924.

JEAN D. JoLKovsKr,

PArENT OFFlCE.

on NEW YORK, N. Y.

' FIRE Esau-E.

Application filed July 12,

To all whom it may concern: j

I Be itknownthatl, JEAN D. JOLKOYSKI, a citizen of Russia, and a" resident of the city of New York borough of' Manhattan; in the county and Stateof New York, have invented new and useful Improvements in Fire Escapes," of which the following isa' full, clear, and exact description.

This invention-relates to fire escapes. I

'The'general Object of the'invention is the provision of a simply constructed and durable fire escape provided with -means for lowering an individual "from any elevation and equipped with means for controlling the speed with whichthe individual is'loweredf 3 I i a This object'is accomplished by providing aframe in which a drum haVing a cabIewound. thereon, is rotatably mounted; con necting to' the drum "forcontrolling its 7 operation under normal weights an escapement, and associating with the drum a governor which co-operates with the escapement to control the operation of the drum after it has reached a predetermined speed.

This and other objects of' the invention will be more clearly understood from the following detailed description and accompanying drawings.

Q Figure 1 is a vertical longitudinal section of the fire escape along the line 11, Figure 2, showing its construction;

Figure 2 is an end elevation of the fire escape with the casing removed showing the escapement for regulating the speed of operation;

Figure 3 is a section on the line 33, Figure 1, showing the construction of the governor; n p r I Figure 4 is an end elevation of the fire escape showing it mounted on a window frame.

Referring to the above-mentioned drawings, the invention includes a frame 10 pro vided with outwardly extending flanges 11.

Openings are provided in these flanges so that the frame may be mounted on any sup port by the use of screws or bolts. When a fire escape of this type is provided for mounting in buildings where it may be' 1923. Serial N6. 651,124.

ing-hooksto any support and adapting the frame 10 for attaching to and detaching from such hooks. Uprights 12 and 13 are formed on the end of the frame 10. Inthe upright 12 two bearings 14 and 15 are provided while, in the upright '13 one bearing 16 is formed. ltotatably mounted in the bearings 14 and 16 is a shaft 17 extending beyond'the bearing14'.

Mounted'on'the shaft 17 between the uprights 1-2and 13'and fixed thereto is a drum 18. Woundon this drum is a flexible cable 19 presenting a means for lowering the individual; desiring t'o'descend from any elevation by means of the fire escape. One end of the cable would preferably be rigidly attached to the drum so that when there are only a few rounds on the drum there is no danger of the cable slipping. As shown in Rotatably mounted on the shaft 17 is a pendulum 25 for controlling the operation of an ,escapement wheel 24 fixed to a shaft 23 mounted in the bearing 15. The operation of the pendulum is controlled by springs 26 and-27 interposed between depending arms of the pendulum and a web 28 .formed on the upright 12. The escapement wheel 24 is connected to the shaft 17 through a gear 22 fixed to the shaft 23 and a gear 21 fixed to the shaft 17 and meshing with agear 22. A frame 29 is mounted on the frame 10, enclosing the gears and the pendulum escapement.

Due to the fact that the pendulum escapement may be driven at different speeds by the application of different weights to thecable,

a governor 30 is attached to the shaft 17 differenttypes 0f governor might be used for co-operating with the pendulum escapement and the type shown in Figure 3 is only one of the preferred forms. This governor includes a disk 31 having a hub 32 formed thereon. The disk is fixed to the shaft 17 I and located within a casing 33 carried by the upright 13. A plurality of arms 35 are pivotally mounted on the disk 31 and are also located in the casing 33. Springs 34 are connected between the arms 35 and the hub 32 for retaining the arms out of engagement with: the casing 33 while the, shaft is. traveling at normal speeds,

The operation of this device is as follows:

When a person desires to descend from. any elevation he wraps the belt about his body and imposes his weight on the cable.

This rotates the drum and sets the pendulum escapement into operation. The speed of the drum is restricted by the pendulum escapementbut if the weight is; greaternth-m the weight for which the springs; of. thBJQSr. capement pendulum. have beendesigned the. drum. 18 begins to travel faster than isde. sirable. Immediately the: governor 3J0 goes: into action and co ope-rates' with the escape n-ient to controlthe speed at which the drum. 18 rotates. i J

I would state in conclusionthat while the illustrated example constitutes a practical embodiment of my invention, I do not limit myself strictly to the: exact detaids herein illustrated since, manifestly the same can be considerably varied without departing from. the spirit of the invention as defined in the appended claims.

I claim: I

1. A fireeseape comprising a framea shaft rotatably mounted. in the; frame, a

30 drum-,fixed-to theshafh: acahls forwindfing';

on the drum, an escapement device mounted on the. frame and connected to. the. drum for.

controlling the nmvin d iLng-of theJcable and a governor attached to the shaft co-operating with the escapement device to control the I":

restrietinsgi ts speed; of rotation during the of the cableend agovennor connected with the drum forcooperating with the escapement to control the operationiof the drum after it speed.

has. reached a certain 3. A fire-.escape,; comprising a frame; a

shaft 'IQtatably' mounted on the frame,v a

drum connected to; the shaft, a cable for winding on the. drum, a spring-controlled es capement connected tothe shaftfor, control ling the speed of rotation of the drum dun ing'the unwinding-of the cable, and a gov- 55 ernor connected with the shaft for -Q eme ing with the escapement. to restrict. the. operation of the drum after. it has reached a predetermined s end.

. N D... JoLKovsKI.

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