US364546A

US364546A - Erik o

Info

Publication number: US364546A
Authority: US
Publication date: 1887-06-07
Anticipated expiration: 1904-06-07

Description

`EIEE ESCAPE LADDER.

NO- 364.546. Patented June '.7, 1887.

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PATENT FEICE.

ERIK o. EoED, or PHILADELPHIA, PENNSYLVANIA, AssIGNoE or ONE-HALE To DAvID seANNELL, E sAME PLACE.

Fmt-ESCAPE LADDER.

SPECIFICATION forming part of Letters Patent No. 364,546, dated June 7, 18d?.

Application filed October 12, 1886. Serial No. 216,007. (No model.)

T0 all whom it may concern: i

Be it known that l, ERIK O. RoED, a cit-izen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented cert-ain new and useful Improvements in Fire-Escape Ladders; and I do declare the following to be afull, clear, and exact description of the invention, such as will enable others skilled in the art to to which it appertains to make and use the same,

reference being had to the accompanying drawings, and tothe letters and gures of reference marked thereon, which form a part of this specification. I 5 My invention'relates to that class of fire-escapes which consists of a folding ladder, one upright of which is secured within a channel formed upon the exterior of thebuilding,while the other upright is adapted to swing down-V ward and away from the xedupright to open the ladder, the rounds or rungs being pivoted to both uprights, and to be operated or moved in a reverse direction for closing the ladder.

The invention also consists in the combina-` tion, with the folding ladder, of novel means for retaining it folded andunfolding the same, whereby the ladder can be successfully operated Within the room upon any story of the building to which it is attached.

In the accompanying drawings, in which corresponding parts are designated by similar` let` ters, Figure l represents a side elevation of the ladder unfolded, one upright being attached to a mortise in the wall, and having my improvement applied thereto. Fig. 2 represents awall in section with `the ladder and lever mechanism for holding and unlocking the same applied thereto. Fig. 3 is a detail view of the lever mechanism. and Fig. 4 a front elevation of the bracket used at the head of the ladder. Referring to the drawings, A represents the wall of building, having a channel, a, which travels the same from top to bot-tom, for the reception of the ladder.

B designates the stationary or fixed upright, secured to the wall by bolts or otherwise.

B designates the movable upright, which consists of a channel-iron of proper size, to which the rounds are bolted or pivoted within 5o said channel, and ,extend parallel to one another across and pivoted to the opposite upright or stationary standard secured to the exterior of the building, which rounds or rungs b form or aftordrresting places and steps by which persons may pass from the windows of a building to the ground, when the 1novableupright B is thrown down, but when not in use, can be readily swung upward and close to 'the wall.

To the top of the building are secured two 6o screw-eyes, c c, which receive the ends of the hinged bracket C, and adapted to move outward and upward with the movable upright by being hinged to the upper end of the same, for the purpose of supporting and affording perfect movement to the ladder when being operated.

. Through the wall of the bnildingopposite to the ladder, and upon each iloor of the same, is an opening through which the lever mechan- 7c isms are inserted and fastened. The lever mechanism is composed of two arms at right angles to one another, the upright arm d being provided with a handle for the purpose of throwing the said arm to and from the interior 7 5 ofthe wall of the building. The opposite extension d is inserted in the recess cut throu l1 the Wall and pivoted. The horizontal arm cl' of the lever mechanism D is provided with a slot,which comes flush'with the exterior of the 8o building, for receiving pins e, secured to the bar E, and also with hook c', formed upon its end, for receiving pinsor projections extending from the rounds secured to the movable upright.

In lcarrying out my invention it will be ob` served that the entire operation of the ladder can be successfully operated within any room traversed by the ladder, by pulling down the same. Thus,when the upright extension ofthe 9o lever mechanism is thrown down,it releases the hook formed upon the end of the horizontal f arm, and at the same time raises the bar E, which releases the remaining locks as perfectly as if operated directly by the operator, thereby 9 5 making an automatic and reliable fire-escape in every respect.

I do not claim, broadly, a folding fire-escape ladder composed of a fixed upright, a movable upright, and rounds pivoted in both said up- Ico downward and outward from the building, they angular lever extending through the wall and provided with a hook for receiving pins or projections secured to the movable upright,

and the bar E, carrying pins which receive the slot in the horizontal arm of the lever7 as and for the purpose described.

2. In a iireeseape ladder, the lever D, pivoted in the wall and provided with the slotA which receives the pins or projections a, se cured to the releasing-bar E, and the hook e', for receiving the pins, secured to the movable upright, as and for the purpose described.

In testimony whereof I afix my si gnature in presence of two witnesses.

Y Y Y ERIK O. RQED..

Witnesses:

Divin SCANNELL, G Renee LEE.