US285832A

US285832A - Fire-escape

Info

Publication number: US285832A
Authority: US
Publication date: 1883-10-02
Anticipated expiration: 1900-10-02

Description

(No Mod l) 2 Sheets-Sheet 1.

W. L. MURPHY.

' FIRE ESCAPE.

No. 285,832. Patehted Oct. 2, 1883.

WITNESSES: WVENTOR A TTORNEY' (No Model.) 2 Sheets-Sheet 2. W. L.'MURPHY.

FIRE ESCAPE.

No. 285,832. Patented Oct. 2, 1883.

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WITNESSES: I I INVENTOR W, at

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A TTORNEY I UNITED STATES;

PATENT O FI E.

\VILLIAM L. MURPHY, OF OXFORD, OHIO.

FIRE-ESCAPE.

SPECIFICATION forming part of Letters Patent No. 285,832, dated October 2, 1883.

Application filed April 20, 1883. (No model.)

To all whom it may concern Be it known that I, WILLIAM L. MURPHY, of Oxford, Butler county, Ohio, have invented certain new and useful Improvements in Fire- Escapes, of which the following is a specification.

This invention relates to an arrangement of reeled ladders upon a building, and will be understood from the drawings and description.

In the accompanying drawings, Figure 1 is a front view of a building arranged with my improved fire-escape; Fig. 2, a vertical section of the same at the frieze; Fig. 3, a horizontal section of fire-walls, showing corner connections of releaserods; Fig. 4, a front View of ladder-links, and Fig; 5 a vertical section of a ladder-link.

In the drawings, A represents the front of a building; 13, the cornice; O, the frieze; D,

the reel; M, a clutch by which the reel-shaft is engaged with the reel-spool when the ladder is to be reeled up; N, a release-rod arranged to have a sliding motion; 0, a bellcrank, through the medium of which the rods N are operated; P, bearings fixed in the wall to support the release-rods; Q, a rope or chain attached to bell-crank O and leading to the lower floor of the house, or to some point not liable to be inaccessible in'case of fire; It, a pulley located 011 the rear of thewall over the port and under the release-rod; S, a chain or rope attached to bolt K, passing over pulley It and attached to release-rod; T, a spring to force the port-door open when bolt is'released; U, a bell-crank located in the angle of two walls to connect the release-rods of each wall; V, ladder-links of square open structure of circular section, of metal; XV, ladder-links j oining links V, and formed of sheet metal; X,

portions of ladder-links WV, folded over the end bars of the open links and secured to the main portion of the link by rivets, as shown; Y, front straps at the links, which support the ladder-rounds, formed of sheet metal bent to fit the ladderround, and having ends to project in under folds X and be secured by the link-rivets; and Z, the ladder-rounds, formed of rods held in straps Y, and provided with tubular bodies surrounding them.

The mode of operation will now be described, it being assumed that there is but one vertical row of windows, one port, and one ladderreel. The reel-shaft is pushed endwise till the engagement of clutch M locks the spool to its shaft. The ladder is then reeled up and the port-door closed and bolted. The floor of the port slopes downward and outward, as shown, and the weight on the lower end of the ladder rests 011 this slope and against the port-door. The reel-shaft is unclutched, leaving the spool free to turn on its shaft. In case of fire the rope Q is pulled. This moves the release-rod endwise, draws the bolt of the port-door, and the port-door flies open, being urged by the spring T and by the weight J. The weighted end of the ladder will then go through the port, and the ladder will instantly unreel till it forms a ladder reaching from the ground to the reel and passing each window in the vertical row. The ladder, being flexible, may, by properly handling its lower end, he swung outward or sidewise to clear obstructions, or to clear flaming windows in the vertical row, or to reach a contiguous row of, windows not provided with ladders.

There being, as there should be, a ladder for each vertical row of windows, the action of the release-rod is to simultaneously release all the ladders.

There being several fronts to a building,

each front with a series of ladders, the one re The nature of the building will determine these details.

I claim as my invention chain Q, releaserods N along the two walls, 1. The combination of wall A, series of and bell-erank U in the angle of the wall, ports D, doors E, with their bolts, ladder-reels joining the rods, substantially as set forth. at the ports, rope or chain Q, release-rod N 3. The open links V, connecting-links V, 15 5 along the Wall, past the series of ports, and with folds X, and rounds Z, combined subropes S, attached to the release-rod and to the stantially as and for the purpose set forth. door-bolts, substantially as and for the purpose Set forth I VILLIAM L. MURPID.

2. The combination of walls A, at right an- Vitnesses: 1o gles to each other, ports D, with their doors A. MYERS, and bolts, ladder-reels at the ports, rope or J. \V. SEE.