US113434A - Improvement in steam-traps - Google Patents

Description

' ication.

. of the series yshown in Figui.

PATENT' l JOHN JosnPH- JORDAN, orjrfi-IILADELPHIA, ArnnnsvnvaniA, AssIGNOn frov HnusELF AND GQGET ACARTERfQ-F SAMLEPLAOEI 'IMPROVEMENF INy STE'AM-TRPS- i' Specification.forming part oi" Leiters Patent No. vl [3;4 34, dated Aprilii,llTl.` L` Y l T0 aZZ whom it may concern,.-

' of Pennsylvania, have invented an Improved Steam-Trap, of which the following is a speci- My invention consists of an automatic 1in'.- struinent, too fully described hereinafter t0 need preliminary explanation, for effectually draining from steam-.heating and other steam pipes the Water of condensation and preventing the escapeof steam therefrom. v

' In the accompanying drawings, Figure l is `a View of steam-heating pipes With my improved steani-trap; Fig. 2, a vertical section` of the steam-trap; Fig. 3, thesame, with .slight modifications; and Fig. 4, a sectional v-ieW, drawn to an enlarged scale, showing a modeA of connecting the valve tothe Atubular stem.

In Fig. 2, A is a chest or casing. one brauch, a, of Awhich is secured to a tube, B, the lowest To the upper branch, b, lof the casing is secured the stud D,

fsurmounted by a screw-cap, D, containing` packing. -Through this cap and s tud passes a valve-spindle, E, von aportion of Whiehis` formed a serevvlthreachadapted to an internal threa'd'inth'e branch b Orea'p D, or both, so that the spindle E can be raised orlowered by turning the hand-wheelyvith'which its upper end isprOVided. The spindle E has at its lower end a valve, F, adapted to a seat, e, in

the valveseat G, Which-is connected byI aY tube, H, to the branch f of the'casing A,' the chamber ofthe latter containing avessel or receiver, I, which is in the present instante.' of. a spherical shape, and which is so fitted snugly to the"spindle as to permit lthe latter to turn freely, the.vs'sel itself Ybeing retained bia set-screw, h," so thatits opening lyshallalways be opposite'to the end of the tube B. The

valvespindle E is tubular and its interior coinmunicatesthrough small orificesm m witlrthe interior of the'vessel I. Aslong as steam alone enters 4 the instrument' through the pipe B thetubular rod E-will remainso expanded by heat 'as to maintain the valve F clos'e'to its seat e, the spindle having been so adjusted as to insure* this condition of the Valve under the circumj stances. YShould-tire4 Water of condensation,`

pipe B, .it will at once'enter the vessel or receiver I, pass through the -orifices' m m, and down the tube E, whioh,vbeing thus exposed bythe comparatively vcool Water of condensa# tion, will be suddenly contracted, the valve being eonsequentlylraised `from its` seat and the water passing through small orifices in the spindle above the valve, and thence through the seat e andWaste-Water pipe 7c, thek expul-V` sion Of the Water from the tube being urged by` Y Immediately after the water of con ensation has been thusdischarged and thetubular valve-spindle is ex posed to steam alone it will be expanded by the pressure of the steam.

the heat of the same, and the valve will cona sequently. be closed and the escape of steam Willbe prevented.

It 'Will be observed that the Water of conden,v sation is isolated from the' exterior tube, H, `vvhieh, being exposedto steam only at all times, 4 issubjeeted to little or no expansion vor. conf traction, vand consequently never variesto any appreciable extent in its-length, whereas the tubular valve-spindle E is exposed to sudden changes oftemperature.` Itisthispermanency of the outer tube andthe restriction of sudden" chan ges of temperature to thetubular spindle which cause a sudden action of the valve and insure the `quick disposal ofthe water` of con-` densation and the instantaneous-preventionof the escape of steam after the Water has been disposed'of.. y

The.vessell and' tubular perforated,valve "stem, besides insuring a sensitive and instantaneous action of the apparatus, serves also,

when arranged as above describedfas strainers for the water and as' receptacles forsedrV ment-.and other impurities,` `V'which in .other steam-traps frequently settle n-and about the valve-seat and interfere',With the freeopera The instrument illustrated in Fig. differs in construction "only frointhat shown in Fig.

"2,1the instruments being the same as regards their mode' of operation.

In I Figf. 3 the tubularspindle is` adjusted `by means of a vdetach-.

able screw-key', M, in a manner too clearly shown to needdeseriptiolnand for the .purpose of preventing unauthorized persons from tam- FFICE; I

hOWev-eig'ube driven 4by the steam lthrough j pering with the apparatus, :1nd the tubular 'spindle is connected to the valve in :1 111z111ner best observed in tlio enlarged View, Figzd,

'where the end of the spindle is provided with @cylindrical block, a', 11f1vi11g1il1111ge,7/, which is retained by :1. screw-ring, 711, in :1 recess in the valve, not. so nightly, however, y:1s to pre1 Veni; the valve having :L slight play on' the end of thespndle. A valve thus loosely connected to the spindleis not liable to'be :Li'eeteds regards its proper :LdJuStment to the Seat by my slight distortion ol the spindle.

I elz1i111 Theadjustabletubulin-21nd performed valvespindle E, its valve F, and the vessel I, ar

ranged for receiving the Water ofcondenSation, in'eombination with a easing, constructed' substantially asdeserilmd,y and having a seir-j for thesaid valve.

In testimony Whereofl. have gnedmy name 'to this sp'eeication'in Vthe presence of two sub-

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