US1171120A - Valve. - Google Patents

Description

G. 1. HATZ.

VALVE.

APPLICATION mm APR. 10. 1914.

1,1 71 ,120. Patented Feb. 8,1916.

2 SHEETS-SHEET 2.

emplo n A gi rtfier ohject of ltheinven in the preferredform in the accompaelging UNITED sTA'rEs PA -Enemi soaonos .1. name, {OF OMAHA; Nsnmsien,

ASSIGNOB 0E ONE-HALF T0 CHARLES E. FULLEIQYOEOMAHA, NEBRASKA.

.VALVE To all whom it mag concern:

Be it known that I,, Gnome J. Han, a citizen of the United States, and a resident of Ornaha,-c ounty of Douglas, and State of Nebraska, have ,invented. certain new and useful Improvements inValves, of which the following is a fuIL'clear, and exact descri tion. m

heinvention relates to improvements in valves and more particularly to valves, such as are employed for gage and other valves that are ada ted for use on and about steam boilers and ocomotives.

The invention -,seeks .to' r'ovidean 'efii cient, inexpensiveconstructlon,in which a steam and water tight maintained between the valve stem and without the usual stufiing;box.- I t provide an; improved cohstnueti' the" valve is "moved longitudina y: eofand from its seat and is not-rotat dfthereomiand in which 'the' parts are sonri-aiigednas to; maintainthe-valyeseat clean.

The invention also seeks: to pi'ovide'im proved "means; for convenientlylloiling the partsof -thevalve to prevent themfrorn' liming .1

.- With thesearid other objects'in view, the invention consists in the features of improvement hereinafter set, forth, "illustrated drawings and. rnore particularly pain in the appenddclaims.' f I ,1 Figure 1' is a central longitudinal section of n gage cock embodying the present improve- H out ments. Fig. 2 is-a cross-section on the line 22 of Rig, 1. Fig. 3' is a view in elevationfof the valve, Fig; ,4 is a partial: lo'ngitudinal section of the valve-and valve seat showing a slightlrnodificatiom Fig. 5 is a longitudinal central section'of the globe valve ernhody irig'. th present improvements. Fig. G is aplan view ofthe valve seat shown in Fig. 53 I '1 I f The gage coeklshown inFig'. 1 comprises a screw 'thr'eadedsh l ik r plug 1 thatjs adapted to be screwed into; a correspondingly threadedoperiing in the 'boilei'fthe' plug having a hexagonal flange 2 for receiving a suitablewrench." Thephig or shank is provided' with an externally-threaded reduced end'pprtion 3 \vliich is'adapted to engage the ir'ilegnally threaded end' portion 4 of the chambered body 5 of the gage cock.

Specification of lletters Intent.

of the latter. into the outer end of the plug 1. This seat i V Patented Feb. 8, 1916.

Application filed April 10, 1,814, Serial lto. 880,840. t 1

agonal to'receive a suitable wrench and is' adapted to be threaded on to-the end of the plug into snug engagement with the flange A valveseat 6, is threaded.

is tubhlar and the --axia'l"bore,7 extendingtherethrough communicates with the sage-way 8, extendingthrough the-plngfo'r I shank 1.' At its end, the valve seat t i is. to

On one side, thebody portion or bonnet 5 oil'the gage. cock.is provided with a dis-- ;chazge nipple 10.nnd, at'i'ts'e'n'd, it'ie-pro-r v Wlfll m intgralflex tension 11 within. which the'valv'e' '12js guided. 'At its .inner end, the valvezlfz is prbvided' with a'short withj'linin'g 214; of bahbi tt, ass own in 4.; The mainbody ,of the valve is ignite in ontline,"as most clearly shown in 1 'g,',2,..and the bore offthe extension or' gu de 12 of the .valve casing of the-body I portionror bonnetis ofcorresponding shape,

i sdiyailt the valve is held-against rotation.

:aAtthe same tune, it is free to shift longitqand from the valve seat.

jvided with anexternal, c'o'nicalseatmg I ace 9 ofjvery sharp taper, as shown.

I .Tfiefexten'sio'n or rvalveuguide' 12 of the I casiiig is'preferably provided with an int'e-- grail end portion 15- having an opening th rein 'th oughjwhich the Yalvejstem 16 extends Tre inner end portion 17 of the stem is screw threaded and lengage'szxan-z internally threaded bore formed in the main body of the valve '12. The outerfend of the valve stem is rovideduwith a squared 7 portion 18 upon w ich fits a'hand wheel19, the latter being-held in place hy'a nut .20-

which is -threaded' upon the reduced end 21 of the valve stem. By rotating the valve stem, the valve, which js held against rotat we I,

The inner face of theen'd portion 15 of the extension or valve guide 12 is provided with a seat or recess fon'receivinga packing washer 22 of fiber, vulcanized rubber or the like, and the valve stem is provided with 11v fixed collar 23 which engages the inner face of the washer. A spring 24 is coiled about tion, is shifted longitudinally;to and from j I the valve stem and bears againstthe 'end of the valve casing and against thehub of the hand wheel 19. This spring presses the collar 23 of the valve stem againstthe washer 22 to thereby maintain a steam and watertight joint between the valve casing and stem. The spring also presses the hand wheel 19 against the nut 20 and prevents the loosening of the nut. Preferably, as shown, the hub of the hand wheel is provided with an inwardly extending, annular flange 25 which extendsover and incloses the spring 24,

The improvedconstruction shown can be cheaply manufactured. The plug, body portion or bonnet and thehandle may be formed of cast iron and preferably of malleable cast iron. The valve and valve seat are. preferably formed ofbrass. The-valve and also the valve seat can be conveniently removed and renewedlnasmuchas' the valve is pro vided ,with a square shank or body portion which fits into a correspondingly shaped bore of the extension or guide 12, the valve is held against turning and has a straight, longitudinal movement to and from the seat.

In this way, the valve cannot twist on or' 'cut the seat. The external conical seating surface 9 of the valve seat has a, very sharp taper, 'as'shown, so that the slight longitudinal movement of the annular valve on this seating surface prevents scale from I forming thereon, and at 'alltimes maintains. the seat clean, so that the valve can be se curely closed. Moreover, if' the valveis closed when the parts are hot, the valve will shrink onto its seat asit is cooled and will not shrink away from itsjseat and leak, as in prior constructions. r

- The spring 24 is heldunder considerable tension, so .that. the packing washer 22 is compressed to form a securesteamand water tight joint about the valve stem, and the spring also serves to, develop sufficient friction between'the, hand wheel and the nut 20 to prevent the loosening ofthelatter.

7 e which is threaded a. plug 2 '50 Preferably on its upper side, the valvestem guide is provided with i-nip le 26 within A knurled disk or cap-piece 28 is providetfonthe outer end of the plug with a seating face 29 which engages the outer end of the nipple 26 to form a tight joint therewith. .Byremoving the cap or disk 28 of .the plug 27,-the interior. moving. parts of the valve may be oiled.

This is an important feature, particularly-if water is employed that contains-limeor other like salts. Under'such circumstances,

scale is'deposited onparts of thegage cock and. corrosion occurs. In the present con-= struction,. the parts of the" gage cock may be conveniently oiled without disassembling them, so that liming up. a d corroding i .'prevented.

Fig. 5 illustrates a globe valve with the the partition 32. Preferably, also, the valve seat is provided with internal lugs 36, as shown most plainly in Fig. 6, which arrangement of the valve stem,

and are held in place franged-hand wheel 19 and spring 24.

, present improvement applied thereto. The

1 preferably provided at'its inner end with a shoulder 35 that abuts against the face of as shown,

are adapted to receive a suitable tool so that the-valve seat can be for repairs or the like.

Above the'valv'e seat the casing is provided with an internally threaded ortion 37 within which the lower end .of t e bonnet 3S is-screwed'. The latter is provided with a hexagonal portion 39 for receiving a suitable wrench and with a flange 40 which is 1 adapted to abut against the-portion 37 of the valve casing. 'The valve 41 comprises conveniently. removed an enlarged annular portion upon the inner or lower end of a shank 42. The annular or cup-shaped valve 421su'rrounds the valve seat and is provided with a conical face of sharp taper which cooperatesv with the tapered bearing face 34 of- 'the valve seat 33. This construction prevents scale fromlodgingon the seat and effectually prevents leaking'of the valve when'the parts are cooled.

The shank 42 of the valve, viously described, is square in cross-section and fits within the correspondingly shaped bore 43 of the extension "Ptof the bonnet. Like the or uiding portion orm previously described, the bonnet is provide with an integral end 45 having an opening for'the' valve stem and a seat on it." nner face with a. packing-washer. The construction and- P k therefor and hand wheel, and also -of tl oiling device, are similar to those already like thatpredescribed in connectionwith the form of the invention-shown in Fi 1. It-should be cessityof-einploying a separate'ca on the end of thg 'guiding portion'44oft e "alvenoted that the constructlon obviates the ne casingpr bonnet: -The packingand valve stemare inserted -from, within the bonnet" by the' exteriorly ar- 'It should be noted-that in both forms means is provided for efiectually forming a steam tight joint betw. nthe valve stem and easing without empl a'stufiing box. oreover; the valve-stein does not recipro cate through 'the-packing,so that it does int- Kiri-d to grind valve swat, oi a valve casing not heroine noin as, in prior and will not lvali. Ordinarily, hold againat i'ulniinn in the valw that it. cannut rut Lhr lattvr. huh i" tliu \nl l on in wait. ill) n-rt iii' tin valw inning may he lll' hlllli'kftwl. and llw valvv run down into vng'apjriiiiailz with the scar. llwn l i'utzii'in gj lliu \nlYv mLli and forth. it, can la: rnund nn its scat.

in the i'nnslriu'liuii slmivn in Fig. I). the pnrtiun 2 ul ilH' valw casing all'm'd:-: a. large npvning. m that \vlu'n llnlmnni-i is removed, ample access i1- afforded tn the valvu suit i that the lattur can he readily l'eu'nuwil. In {hia fornn alw. the valve prnji-irta hvyund lib honnut vvlnrn ilk latter is ruinmml, su that it ran he readily ground. i It is l)\l(li\'r\ that numernus changvs. may be made in the ilk-tally: av-l. l'nrlh \vithqut departure from (he vwantiala 0f the llfl'klltinn as dvfinud in {in clainm.

I. claim as in invi-ntinn 1. Tho mniliinatiun \Kill\ a plug uxterim'ly threaded at it innvr and mum? ends and provided at in, nun-r vnd with a'pri'ijvi-ting formed of a singlv pica-u threaded at its innvr rnd to engage the outir 0nd of said plug-th s outer end pnrtinn Qf aid val-lug living formed with a nun-circular ii-lianihi-r in :i-veive a valve and having lutmwn aid nuniriri-ular ('luimlwr and its inner vii-l an vxpandvd chamber around tlu mid of thc valve seat,

a disrhargini iplv. said vasing living pruvidcil al in nutmi-nil, lw vninl said nun-cir vular clnunlwr. with a lfHhUNClQtl opvning and will: an inti-rinr '(-l?-'h adjacent said rnntrarwd win-hing Lu rmw-ivv a \vmhm, a

washer nnhin aid interior recess, a valve i'illlllll!l and nnnrntatahly mounted within t-2ll l nnna-irrulai' CllilllllHl iii the casing and aiiviilr-il at n: Hlltfil 2nd With an interior-1y ilkP'iiu iil part. a valve sivin having athrcad ml innvr vial I1; engage said alvv and having a. CUllIi! adiacvnt ita threaded inner end in ongagrv said \\':l lh..'. and lllillllri cnnnecled tn lhv uuiwand n'i said valve stun \vlicrehy it inn) la: i'niati-d tn ell'ocl, the sliding move llfillt of thv vilv-r; v aid vnlvv lasing rvninv alilv lwld within Llw valwi-a ing until said ("i-wing is hodilv (llUlClllll from said plug.

2 Tim rmnhinatinn with a valve (axing ll2l\'ll!; a communal ()HHlfigj fur the passage ni' thv valw stvnn aid fusing havin; in interior prnvided will! an annular Haw adjavr-nt aid (:untractml opening, aid raising having in intrrinr formed with a llUllfi'll" \"lll'ill tllilllllili' to rccvivi' the -lianl nl' thv valve and with a chamber for nil livtwi-i-n *hu outer and of said non-circular (-lunnlwr and said annular recvss. a valvinmuntvd (n slid-Q within said nun-circular i-hanihur of ihv casing, a valve stun having it innvr and threaded tn engagv a rurru-= mndinglv tlirvadvd outer pnriinn of said valuand havin; a collar arranged within said aw nular rem-5s, a \vasliv-r arranged around the valve stem within said "060% and adjaii'nl said (:nllar and nwans mounted upon the outer end of snid valve sti-m for tnrnin, the mine. llll' outer portion 01' said cahing living provided with a passage liradin; to said nil chain wr and a cap for closing said passage.

GEORGE J. HATZ.

W itnvsses:

(uaxnmrrs J. CAREY. Jam-s E. Han.

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