US284871A - Fire-escape - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1 i C. MALIPHANT.

. FIRE B'SGAPB. g No. 284,871. Patented Sept. 11, 1883.

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0. MALIPHANT.

FIRE ESGAPEK Patented Sept. 11, 1883.

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my improvement, illustrating its use.

UNrrnn STATES ATENT FFICE.

CHARLES MALIPHANT, OF NEW BRIGHTON, ASSIGNOR TO HIMSELF AND GEORGE CLARK, OF TOMPKINSVILLE, NEW YORK.

FIRE-ESCAPE.

SPECIFICATION forming part of Letters Patent No. 284,871, dated September 11, 1883.

(No modl 1.)

To all whom, it Indy concern:

Be it known that I, CHARLES FIALIPHANT, of New Brighton, in the county of Richmond and State of New York, have invented a new and useful Improvement in Fire-Escapes, of which the following is a full, clear, and exact description.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1, Sheet 1, is a perspective view of Fig. 2, Sheet 2, is a front elevation of one of the carriages. Fig. 3, Sheet 2, is a side elevation of the same, partly in section.- Fig. 4, Sheet 2, is a plan view of a part of the same, the way being shown in section. Fig. 5, Sheet 2, is a perspective view of the driving'mechanism.

The object of this invention is to facilitate the removal of people from burning buildings and promote convenience in operating and controlling the fire-escape.

The invention consists in a fire-escape constructed with two carriages suspended from a single rope passing over guidepulleys at the upper part of the building and around a grooved drum at the lower part of the building, the said carriages moving up and down upon ways attached to the building. The ways are connected with the building by bolts having projecting heads, and the carriage is connected with the hoisting-rope by a pulley and a sliding rod held down by a spiral spring, and is provided with springs recessed to receive and be raised by the neck of the hoisting-rod and projecting to come in contact with the projecting bolt-heads and stop the descent of the said carriage should it be released by the breaking of the hoisting-rope. The carriage is provided with an upper platform and an upwardly-projecting ladder, so that people can be taken from the roof of the building, as will be hereinafter fully described.

In vertical channels'in the building are secured wooden bars A, to which are attached by screws or bolts 13 T-shaped iron bars 0, to serve as ways for the carriages to move up and down upon. The heads of the screws B project, for the purpose hereinafter described. The bar 0 fits into a T- groove in the rear side of the upright bar D, to which, at a little distance from its lower end, is attached a platform, E, provided with a railing, F.

To the'upper part of the bar D is attached the rear edge of a small platform or roof, G, the forward part of which is supported by rods H, attached to the platform E. The platform E is made of such a length that its end parts will overlap adjacent windows, so ,that people can pass to the said platform E from two windows at the same time.

To the forward part of the platform E is attached the lower end of the ladder I, which passes up through an opening in the platform G and projects upward to such a height that when the platform E is at the level of the sills of the upper windows of the building the up* per part of the ladder I will be in such a position that people from the roof of the build ing eanpass down the said ladder to the plat form E. The upper end of the ladder I is strengthened in position by braces J, attached to the said ladder and to the platform G.

K is the hoisting-rope, the ends of which are secured to the upper part of the building, and which passes around the pulleys L, pivoted to the upper ends of the rods llI. The rods .M pass down through holes in the rear parts of the platforms G E, and have nuts 1 screwed upon their lower ends below the said platforms E. The rods M are made longer than the spaces between the platforms E G, and up on them are placed spiral springs N, the up per ends of which rest against the lower sides of the platforms G, and their lower ends rest against collars 0, formed upon or secured to the said rods M, so that the weight of the carriages while being raised and lowered will rest upon the said springs N.

To the rear end parts of the platform G are attached the outer ends of two springs, P, the inner parts of the inner ends of which are recessed to receive the upper part of the rod M and rest up on ashoulder or collar formed upon or attached to the said rod. The inner ends of the springs l are widened, so that their outer edges will be close to the face of the T- the descent of the carriages, the said springs P being made sufliciently strong to support the carriages and their loads. When the carriages are supported by the hoisting-rope K, the weight of the said carriages compresses the springs N, causing the rods M to move upward and raising the inner ends of the springs 1, as shown in Figs. 2, 3, and 4, so that they will pass the heads of the bolts B without coming in contact with the said bolt-heads. From the pulleys L the hoisting-rope K passes over ihe guide-pulleys Q, pivoted to supports attached to the upper part of the building, and its middle part passes downward to and around the drum R, which is pivoted to a boX, S, a frame or other support secured to the building above the doorway, or in any desired or convenient position. The drum R has a zigzag groove, R, formed in it to receive the rope K and prevent the said rope from slipping.

To the end of the drum R is attached a gearwheel, T, into the teeth of which mesh the teeth of the gear-wheel U, pivoted to the box S or other support for the drum R. To the gear-wheel U is attached a drum, V, which has a zigzag groove, V, formed in it to receive the endless rope W and prevent the said rope from slipping. Theendless ropeW may hang free, as shown in Fig. 1., or its lower part may pass around a fixed pulley or a weighted pulley to keep the said rope straight. \Vhen the carriages are comparatively light, the gear-wheels T U and the drum V can be omitted and the traction-rope W placed in .a second zigzag groove, R in the drum R. \Vith this construction the carriages D E will be raised and lowered alternately, and either carriage can be stopped opposite the windows of any desired story of the building.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent 1. In a fire-escape, the combination, with T- bars adapted to be attached to a building, of carriages having T-grooves in their rear sides, a grooved drum placed at the lower part of the building, and a hoisting-rope passing over pulleys at the upper part of the building and over the said grooved drum, substantially as herein shown and described.

2. In a fire-escape, the combination, with the building, of the T-bars O, the two carriages D E, having T-grooves in their rear sides, the single hoisting rope K, the guide-pulleys Q, and the drum R, having zigzag groove R, substantially as herein shown and described, whereby the carriages will be raised and lowered alternately by operating the said drum, as set forth.

3. In a fire-escape, the combination, with the carriage D E, the hoisting-rope K, and the waiys 0, having projecting bolt-heads B, of the pn ley L, the rod M, the spring N, and the stopsprings P, having recessed inner ends, substantially as herein shown and described, whereby the said carriage will be stopped and held should the hoisting-rope break, as set forth.

4. In a fire-escape, the combination, with the carriage D E, of the second platform, G, and the upwardly-projecting ladder I, substantially as herein shown and described, whereby people can be taken from the roof of the build ing, as set forth.

CHARLES MALIPHANT. W'itnesses:

.TAMEs T. GRAHAM, EDGAR TATE.

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