US1723129A - Folded safety fire escape - Google Patents

Description

Aug 6, 1929. BLAUFELD 1,723,129

FOLDED SAFETY FIRE ESCAPE Filed Sept. 4, 1928 NVENTOR. MQERIS EQALJF'ELE 3; A 5 3/ f;

Patented Aug. 6, 1929.

UNITED STATES MORRIS BLAUFELD, OF BROOKLYN, NEW YORK.

FOLDED SAFETY FIRE ESCAPE.

Application filed September 4, 1928. Serial No. 303,671.

This invention relates to a new and useful device in the nature of an extension fire escape especially adapted to provide a means of exit for persons from a burning building.

The object of the invention is to provide an extension ladder normally held in a container secured directly below the window sill of a building and a means of readily releasing the said extension ladder for the purpose as above set forth.

Another object of the invention is to provide a device of the class described of comparatively cheap construction easily manufactured and installed.

A still further object of the invention isto provide a device of the class described of novel construction and arrangement of parts hereinafter more fully described, claimed and illustrated in the accompanying drawing.

Fig. 1 is a side elevational view of a building equipped with a number of my im proved extension fire escapes.

Fig. 2 is an enlarged front elevational view of my improved device showing same in a non-extended or not in use position.

Fig. 3 is a side elevational view thereof.

Fig. 4 is a top plan view thereof.

Fig. 5 is a transverse sectionalview'taken on the line 55 of Fig. 2.

Fig. 6 is a fragmentary sectional view similar to that illustrated in Fig. 5 showing the ladder in a released position.

Fig. 7 is a transverse sectional view of one of the ladder steps as embodied in my improved device.

As here embodied my improved extension fire escape comprises a-container or receptacle of box-likeconstruction consisting of side members 10 and 11 and top and base members 12 and 13, and open at the front .and rear thereof. Supports 14 and 15 are secured transversely to the rear edges of the side members 10 and 11 in proximity to the top and base members 12 and 13. These supports 14 and 15 are of sufficient length to extend somewhat beyond the end members 10 and 11, as at16, 17 and 18, 19 respectively and have formed therein apertures 20, adapted to receive threaded members,

' bolts, screws, studs or the like as a means of securely attaching the above described container to the side 21 of a building directly below the window sill 22.

The above described container and supports are constructed of metal suitably formed, punched or stamped and preferably welded together so as to provide a permanent, fire proof and rigid construction.

A plurality of ladder steps comprising a top step 23, bottom step 24 and intermedi ate steps are suspended from one another by means of flexible members 26 and 27, preferably metal chains so as to provide fire proof construction. The top step 23 is suspended from the top member 12 of the above mentioned container by means of the flexible members 28 and 29, similar to the metal chains 26 and 27. The steps 23, 24 and 25 are of corrugated transverse section as clearly shown in Fig- 7, and are constructed preferably of sheet metal pressed or otherwise formed to the above mentioned section, so as to provide traction or prevent slippage of the feet of the person using same and also so as to provide fire proof construction. The bottom step 24 is of somewhat wider construction than the top step 23, the intermediate steps 25 are of graduated widths relative to the top and bottom steps 23 and 24 so as to provide a uniformly graduated set or series of steps.

A rod 30 vertically disposed is rotatively mounted in the top and bottom members 12 and 13 in close proximity to the front edge thereof and the side member 10. This rod 30 has secured thereto at its upper extremity a lever 31 provided with a handle element 32. A tension spring 33 is secured to the lever 31 and to the top member 12, as a means of normally holding the handle element 32 in close proximity to the window sill 22 within easy and convenient reach of'a person desiring to use my improved device, and also for the purpose as hereinafter set forth.

A plurality of angle brackets 34 and 35 are secured to the side members 10 and 11 and extend inwardly therefrom, and are approximately relatively evenly spaced for the purpose of providing suitable supports for the above mentioned steps 23, 24 and 25, when not in use.

The rod 30 is provided with horizontal extended elements 36 and 37, positioned in proximity to the upper and lower extremities of the rod 30, a vertically disposed element 38 is secured to the extended extremities of the elements 36 and 37. The latter described construction is such as will normally permit the spring 33 to hold the element 38 or guard in contact with the steps 23, 24 and 25, so as to prevent misplacement of the steps in the said container.

The rod 30 is provided with horizontal extended elements 39 positioned in roximity to the upper and lower extremities of the rod 30, .a vertically disposed elemental is secured to the extended extremitiesoifithe elements 39 and40, so as to permitth'e' ele ment 41 to normally engage the rear ed es of the steps 23, 24 and 25. The above escribed construction is such as will permit the element 41 to assume the position designated by the reference numeral 41' when the handle element 32 is forced outwardly as designated by the reference numeral 32, for the purpose of slidably misplacing the steps 23, 24 andf25' from the brackets 34 and 35, as designated by the reference numeral 24' so as to extend the ladder steps along the side of the building as designated by'the refer ence numeral 42.

Having thus described my invention, what I claim as new and desire to protect by Letters Patent of the United States is as follows 1. In an extension fire escape of the class described, a container for holding a ladder consisting of a plurality of steps connected by flexible members, a rod rotatively mounted in the container, a lever attached on the rod, extended elements projecting from the rod, vertical elements on the ends of the extended elements and engageable against the front edges of the said steps, and'means for normally urging the vertical elements against the said steps for preventing misplacement of the steps in the container.

2. In anextension fire escape of the class described, a container for holding a ladder consisting of a plurality of steps connected by, flexible members, a rod rotatively mounted in the container, a lever attached on the rod, extended elements projecting from the rod, vertical elements on the ends of the extended elements and engageable against the front edges of the said steps, and a spring connected between the lever and the container .for normally urging the vertical elements against the said steps forpreventing misplacement of the steps in the container.

3. In an extension fire escape of the class described, a container for holding a ladder consisting of a plurality of steps connected by flexible members, a rod rotatively mounted in the container, a lever attached on the rod, extended elements projecting from the rod, vertical elements on the ends of the extended elements and engageable against the, front edges of the said steps, means for normally urging the vertical elements against the said steps for preventing misplacement of the steps in the container, second extended elements, and a vertical element attached on the latter extended elements and engageable against the rear ed es of'the said steps for moving the steps orward and out of the container upon a partial rotation of the rod.

In testimony whereof I have afli-xed my signature.

MORRIS BLAUFELD.

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