US654705A - Fire-escape. - Google Patents

Description

No. 654,705. Patented July 3|, |900.

H. M. BOODY. v FIRE ESGAPE. (Appnmion med my s, 1900.)

(No Model.)

Nrrnn STATES PATENT Ormes.

M.` nooDY," or HYANNIs, MASSACHUSETTS.

Fins-Eisomersl s PEcIFIoATIoN forming partofietrs rasant no. 654,705, dated Juiy 31, l'eo'o. Application tieanty a, 1900. senti No. 15,342. (No man.)

To all whom; 7225 may concern/:h

Be it known that I, ROBERT M. BooDY, a citizen of the UnitedStates, and a resident of Haverhill, in the county of Essex and State` Thisinventionrelates to an improved means for lowering a person from a window in a building in case of re,which is adapted to lower the person at a certain speed, which will not be varied whether the person is heavy or light;

For an understanding of my invention attention is called to the accompanying drawings, in which i Figure l is a central cross-section on the line X X of Fig. 2. Fig. 2 is a front elevation with the casing removed. Fig. 3 is a detail View of the part which includes the clutch. Figs. 4 and 5 are side and end views of anoose which I use in this connection.

The whole device is inclosed in a casingA, and the various parts are journaled or sup` ported in strips of metal B, which are connected in various ways to the casing. A central shaft C is xed in the casing and extends from side to side thereof. Asleeve cis journaled on said shaft and is provided with a gear c at oneend and a series of clutch-teeth c2 at the other. A gear c3 is also journaled on said shaft and is provided with a boss hav` journaled on a fixed shaft da, said pallet be ing arranged so that it engagesithe teeth of the escapement-wheel in the usual manner. The teeth of the escapement-wheel are made straight on one side and curved on the other, as shown in Fig. 2, and the teeth of the pallet are made V,s haped, as shown. By providing a straight face on one side of the teeth of the wheel the pallet will come firmly into engagement, so thatthere is no possibility of slipping, yet the curved surface on the other side of the teeth. aids materially in throwing out the tooth of the pallet as the direction of motion is changed. Integrally connected vided with a circular-shaped l end d5. e lator d6 is journaled, on the shaft c and is pro- ;vided with a notch Z7 inits lower end, with 55 with the pallet is an arm d4, which is p'ro- Areguwhich the end d5 of arm d4 engages, and on `its upper end it is provided with an arc` shaped weight d8. This arc-shaped weight d8 'is provided with a notch d on its outer surface, said notch extending nearly the entire 6o length thereof, two projections or shoulders being thereby formed on the weight at each end of the notch. A at spring d10 is iirrnly secured to the casing in any convenient way and depends so that its lower end is adapted to engage the ends of the notch dg. The sleeve c has two guiding-flanges Esecnred thereto, and a suitable tape or steel band eis suitably secured to said sleeve between said ilanges, so that said sleeve constitutes'awind- 7o Aing-drum about which-the tape will be wound when the sleeve is rotated. The inner en d `of the band e is secured to sleeve c in any "suitable manner.

4pr-ovided'with a ring e2, and a hook'e' is adapt- 75 The end of the band is ed to slide onthe band and be connected to the ring e2,'so as to form a noose which may be passed around the body of the person using the device..

The sleeve o is capable of a sliding Inove- 8o ment on the shaft C and is forced against the gear c3 by the spring F, which is confined between the collar c5 on the sleeve c and aring b, which is secured in one of the supports B.

A large gear Gr is journaled in the frame and S5 in one of the supports B, and a crank g is adapted to be connected thereto.

The whole device may be secured in a room in any convenient way. For example, strips of metal or other suitable material b may be 9c connected to the casing at one end, as indicated in. Fig. l, and their opposite ends may be tied or connected in any suitable manner by a hook or buckle. These strips will be passed about or secured to any suitable object in the room7 as will be readily understood.

The operation is as follows: Assuming that the tape e is wound around the sleeve c and that the machine is suitably secured at some place in the room from which the person is roe to be lowered, the noose (shown in Figs. 4 and 5) is slipped around the body of the person,

2 Y v er4,'z'05Y and as his weight is thrown onto the band e the band will be unwound and the sleeve c will be rotated. The teeth of the clutch c2 will beV in engagement with and will rotate the gear c5. This gear c8 will in turn rotate the gear d andthe escapementiwheel D,which is formed integrally therewith.V The, pallet d2 will engage the teeth of the escapementwheel and will be thrown back and forth in the usual manner, liberating one tooth of the wheel at a time and preventing it from rotating beyond a certain speed. As the pallet is tipped from one side -to the other it will' swing the arm d4, which in turn will oscillate the regulator d6, and as the regulator reaches almost the end. of its stroke in either direction the end of the spring di will engage one of the projections at the end of the notch, so that the `latter part of the movement of the regulator-will be retarded. The spring will then give the regulator an impulse in` the opposite direction. This impulse will ocv cur at the `end of each oscillation and will ab- Y solutely prevent anyfailure to swing on'the part of the pallet, so that the motion thereof Y back and forth will be positive, and the danger of the pallet becominglocked with the escapement-wheel, so that the latter will not turn willl be 'reduced to a minimum.V `The regulator'will not, however, increase the speed of the escapement-wheel, but will regulate the yss movement of the pallet, so that the speed of the escapement-wheel will be regular. lIt will `be noted that when the head dfof` the regulator is thrown on one'side of the vertical line `through its axis the pallet will be thrown on the other side of the same vertical line.

In this way one acts as a counterbalance forV the other. When the person has been lowered to the ground, thetape or band may be Wound up again by turning the large gear G by the crank g. When this is done, the sleeve c will slide back, so that the teeth of the clutch will disengage and the gear es will not be rotated. In this way the pallet will not interfere with or retard the Winding up of the tape, so that this'operation may be quickly performed.

' It one person only is to be lowered, the end .of the tape maybe secured in the room and the apparatus to the person in any conven= ient way, so that it will be lowered with the person. I Having described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is as follows 1. A device for the purpose described comprising a windingdrum,a tape which is adapt= edto be wound therearound, an escapementwheel which isconnected therewith, a pallet which isadapted to en gage said wheel, an arm extending' fromv said pallet, a pivoted lever having one end connected to said arm and having its opposite end weighted, and a spring Y.

said weight near each end thereof, and a spring which is adapted to engage one of said projections as said lever approaches the limit of its movement in each direction.

In testimony whereof I have affixed my sig- Vnature in presence of two witnesses.

ROBERT M. BOODY.

Witnesses:

LOUIS H. HARRIMAN, GEO. E; UCKER.

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