US660917A - Fire-escape. - Google Patents

Description

um 660,917. Patentedoct. 3u|9oo. J. u. MILLER a n. Asuzw.

rms Esens. (Application med July 12, 1000.)

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c[.lisitTEii) STATES PATENT OFFICE.

JAMES OMAR MILLER AND.DANIEL AGNEW, 0F ROCHESTER, INDIANA.

FIRE-ESCAPE.

SPECIFICATION forming part of Letters Patent No. 660,917` dated October 30, 1900.

Application filed July l2, 1900y Serial No. 23,382. \No model.) l i T0 all whom it may concern.:

Beit known that. we, JAMES OMAR MILLER and DANIEL AGNEW, citizens of the United States, and residents of Rochester, in the county of Fulton and State of Indiana, have invented a new and Improved Fire-Escape, of `which the followingisa full, clear, and exact description.

The invent-ion relates to lire-escapes such as shown and described in the Letters Patent of the United States No. 622,059, granted to James O. Miller on March 28, 1899.

The object of the invention is to provide a new andimproved fire-escape arranged to insure a gradual descent of a person according tothe weight of the latterfand without any 4 manual assistance whatever on the part of the person descending.

The invention consists of novel features and parts and combinations of the saine, as will be fully described hereinafter and then pointed out in the claims.

A practical embodiment of the invention is represented in the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate correspondingr parts in all the views.

Figure l is a side elevation of theiinprovement. Fig. 2 is a transverse section of the 4same on the line 2 2 in Fig. l. Fig. Sis a sectional side elevation of the'saine on the line 3 3 in Fig. 2. ofthe saine on t-he line 4 4in Fig. l, and Fig. 5 is a similar view ot' the same on the line 5 5 in Eig. l.

The improved fire-escape has a casing A, preferably made in sections bolted or otherwise fastened together, a drum-shaft B being jonrnaled in suitable bearings formed in the side plates of the casing. On the drum-shaft B is secured a drinn C, having a V-shaped groove for receiving a rope or cable D, carrying at each end a suitable belt for att-achnoent to the person desiring to escape from a burning building. The casing A is adapted to be supported Vfrom a hook or the like by a suitable loop E, pivoted in aseparate piece A2 of the casing Aat the top thereof"7 as is plainly shown in lthe drawings, so that the easing can always hang in a proper vertical position when in use to insure a proper working of the rope or cable on the drum C. The

Eig. 4 is a sectional plan Viewl i speed of the drum is controlled by an escape ment consisting', essentially, of escapement'- wheels F, in mesh with escapement-bars F', mounted to slide in vertical bearings A', formed on the casing A at the topa nd bottom thereof, said bars receiving an alternate upextending over the guideopenings A4 in the bottom piece A3 of the casing, said guidingtube G carrying at its upper end ant ifrictionrollers G, over which pass theruns of the rope or cable D on their passage to and from the V-shaped groove in the drum C.

the antifriction-rollers G are located close to the runs of the cable must at all times pass in the groove without danger ofthe cable slipping on the drum and without the cable leavingthedrum. Furtherm`ore,theantifrictionf rollers G are so disposed that the down wardl yhanging runs ofthe cable or rope do not touch the walls of the guiding-tube G no1' the walls 'of the apertures A4, so that the cable or rope is notl subject-ed to undue wear by rubbing againstthe walls referred to, and hence longer life of the lire-escape is insured.

Having thus fully described our invention, we claim as new and desire to secure by Letters Patentf porting-loop pivoted on said casing, an escapement., ad rum, journaled in the casing and having a V-shaped peripheral groove for the passage of the cable, a guiding-tube held in the casing and having an elongated opening extending over the guide-openings in the bottom of the casing, and antifriction-rollers journaled in the upper portion of said tube, as set forth.

2. A lire-escape, having a casing, a drum mounted therein, an escapement-wheel fastened to the axis of the drum, an eseapementbar working with the escapementwheel, and a guide-tube located adjacent to the drum and adapted to have both runs of the cable from the drum.

By reference to Fig. 3 it will be seen that' passed through it, to guide the same to and and-down sliding movement from the escapethe peripheral surface of the drum C, so that l. A tire-escape, comprising a casing, a sup- A [ire-escape, hnvinga casing, :l frictienl names to this specification in the presence nl' drinn mnunted therein, n finti guide-Lnb(- eartwo subsvt'ibing winnesses. .ied in the cnsingnnd adapted tio lezidshqI en- JAMES OMAR MILLER. )le t0 and ft'onl Lhe drntn, und antifliemun- DANIET AGNEW rollers mounted at; the nppet'end of Lne gnidel J i i Witnesses:

ROME C. STEPHENSON, i LUCILE HOLMAN.

tube directly adjacent to the drum to press the rope into true engagement with tihe d ru in. In testimony whereof we have signed our

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