US1141882A - Valve. - Google Patents

Description

E. OMALLEY.

VALVE.

APPLICATION FILED swr. 12, 1911.

Patented June 1, 1915.

; an s'rn'rns EDWARD oMALLEY, or onroaeo, 'rLnrnols, ASSIGNOR To .OMALLEY-BEARE VALVE COMPANY, OIE GHIGAGO, ILLINOIS, A CORPORATION OF DELAWARE.

I VALVE;

Application filed September 12, 1911. Serial No. 648,975.

To'all'whom it may concern Be it known that I, EDWARD OMALLEY, a citizen of theUnited States, residing at Chicagopin the county of Cook and State of Illinois, have invented new and useful Improvements in Valves, of which the follow-' ing is a specification.

This invention relates to improvements in valves, and more particularly to gage cooks for steam boilers. I a

It is the object of this invention to provide a gage cock for steam boilers with a double shut off, whereby the operating valve parts normally in communication, withthe boiler may be cut off andrepaired without placing the boiler out of service and without the use of special tools; The advantages'ofsuch a gage cock are obvious. The greatest source of trouble, and in fact about the only source trouble and place the valvein working condition again heretofore it has beenneces'sary to remove the damaged parts to regrind and replace it, or make other repairs to the inside of the. valve, which necessitated the blowing down of the boiler before the work could be done. a v v This invention provides not only theindependently cutting out of the operating parts of a gage cock valve from the boiler while in service, but alsoin addition a magazine of repair parts upon thehead and seat, so 7 that when the valve becomes I'leaky or damaged the valve is cut, out and the damaged part removed and the neXt one in line will take its place orotherrepairs made inside the valve, and the valvethen placed in service While the boiler is under full pressure. a This gage cock is particularly adapt ed for use on locomotive boilers, which should be provided with threeygagel cocks; properly placer land not leaking and always- Specification of Letters Patent.

' V Patented June 1,1915.

in such condition operated.

While the preferred form of this invention is illustrated upon the accompanying" sheet of drawing, yet it is to be understood that m nor detail changes may be made without departlng from the scope thereof.

ieFigui-e l is a viewin" central vertical sec tion taken longitudinally through a gage cock constructed in accordance with this'invention; Fig; 2 is a view in sideelevation ofFig; 1: Fig. 3 is a view in transverse section through the boilercutofi' union.

The gage cockas comtemplated in this invention consists of an externally screw threaded portion 1, adapted to engage the boiler walls, a valve cap 2; adapted to carry the valve stem and valve head, a ,valveseat base 3, adapted'to connect the boiler engaging portion lto the valve cap 2, with "means for, securing the, cap 2 to the seat base 3 and means for rotatably joining the seat base 3 to the boiler engaging portion l. H

The boiler engaging portion 1 is provided with an unobstructed central passage '4 which gradually diverges toward the outer end until the diverging passage 5 lies wholly without the center line where it abuts the adjacent seat base-3. The seat base 3 is provided with an unobstructed passage 6 which gradually decreases infsize until it is that they can be easily of the same diameter as the passage eiin the surface of theseat base 3 is correspondingly concave, sothat'the contacting surfaces at the union are curved. The boiler engaging portion 1 at its outer end is-p'rovided with an outstanding circumferential flange 8 and the adjacent portion of this seat base 3 is of corresponding diameter with circumferential screw threads adapted to be engaged by a securing nut ,9. 'The securingnut 9is provided with anfinternal annular flange 10 adapted to engage behind the flange 8 upon I seat base 3'islikevvise-provided vvith a plurality of flat Wrench engaging surfaces 12,

whereby the 'two parts maybe rotatabl'y coni portionsi'are provided wlth the diverging nected or rigidly'secured as desired.

1- 'the seat base 3 by asecuring nut 13 and re ,tains between them a plurality of thin, flat, Wearing surfaceplates '14 similar 11mm struction to the plates described and claimed a The valve cap 2"is detachably secured to in my former Patent No. 978,930; The

' outergportionotthe cap-2 adjacentthe seat" base 3 is screw threaded to receive the se-H curing-nutl3y Near the adjacent end i seatf'member 3; an outstanding circumferential; flange 15 is provided and the securing nut 13 isprovided'with an internalannular flange 16 adapted: to engage the under side t er o ecurin t ese Par e he Near the adjacent extremity. of the inner i wallsjor" the-cap 2,1 inwardly projecting ann'ular seat engaging shoulder or flange 1'? is provided; -'l;he outer end-of the seat base 3 beyond-the fiange is redu ed n diameter to be receivedwithin the yvalls of the cap 21 The-Wallsof the seat base atthis points are.

of "suflieient thickness to act as a base for the seat'plates ls; The securing'nut 13 is provided about itsfcircumference vvitha plu I 1 rality of flat Wrenchengaging surfaces 18,

' whereby by the application of a W'ren'chfthe cap 2 andgseatbase-3 may be drawn, together and retain the seatpl ates 14: in iaee b.

. tween them.

Y Thecap Q'carries the valve .stem 19, provided iththe usualhand Wheel 20, and a valve head 21. The valve head is preterably provided With a plurality of thin flat Wearing surface plates 22 and is preferably constructed in the" manner described and claimedin"-my said former Patent No.

978,930.} A discharge opening and'noz'z'le 23' is provided uponione side of the valve 7 cap 2."

Inorder that valve plates and seat plates may not rub against each other durs ing the closing moments of the valvefit'is preferable to mount-the head 21 'rotatably upon the stem l9,h ovvever,- this is not nee} I essary because the annularflange 17 upon the inner'yvalls of the :c'ap 2; is placed a sufficient distance-from the end thereof so that When the ends ot these v'valls engage theouterside of the seat base 3 a single seat plate yvi ll berotatably held'inplace'.

When avalve part 'gets out'jf 'o'rder or the head or seat plates become W0ri1,"it is only necessary todetach the, valve cap and ,re-

:. move the damagedplate and upon replacing the cap, the-plateheXt in' line will. present a'periz'ect contactingpart; vShould the valve head become stuck upon: the stem a quick repair may be made by removing allot the head or seat plates but one and upon replacing the cap this one plate will, be rotatably held in place. For the purpose of making these repairs to the gage cock With- 7 out drawingthe fires and blowing the boiler,

therotatable seat base and boiler engaging passages which vin one position of the seat member form an unobstructed passage from the" boiler to the valve and in a partially rotated position of the seat member, the'opa very, gradual mannerin "order to prevent any Yeonfi sing sounds during the operation ofthe valve, that'jothervvise might be caused by an abrupt fchange in the course of the water'andrsteain or'b'y any obstruction in the 'course; Engineersmostly judge'by'th'e. soundHWhether vWater, steam, or a mixture of both: are jescaping itrom the gage cock.

The' 'sound by Which a mixture of steam andwater is known is fluttering. Any acute f angle. or "obstruction in the passage' vvill cause'this fluttering sound,; which would amount of water in the boiler. a

cause an error in. the judgment f th The gage cock described above makes it,

possiblesito test the level of the Water in the bpile'rs' regularly Without fear of the boiler' being killed by 'failurejot valve to" close) When thehead orseat becomes vvorn, the

damagedplates maybe discarded andfother repairs made Within the valve Without put- 'ti'ri'gfthe boileroutof service. The operation is sure and positive and each gage cock is independent of all others; These'features 7 do'avvay With the uncertainty'of gaging the i le'vel'fOif the ater in theboiler, allotvthe boiler, to be kept in constant 'service, and

allew repairs tobe madeto the 'gage 'cock's whllejim'service; Allthese things greatly reduce the'uncertainties, dangers, and expenses'ot the use 'of gage cocks and add to the lifeand service of the'boiler. V,

7 What I claim is I 1. Ina gage cook, a valve cap carrying p valve stem, valve headanda discharge'fnozs zl e, a seat'base, aboiler engaging portion and means for rotatably con'necting the seat base to theboiler engaging portion, the seat base andfboiler engaging portion having a central; passage gradl'ially diverging ifromi thejfcenterline having the erown of the di vergence at the connection, with the passage 5 at thel'crovvn entirely without thecenter line and thepass'agew'ay from the crown increasliong in diameter to the outer end of the seat ase.

{2. In a gage cock, avalve cap provided With a'valve, ste'mfvalve head, discharge nozzle,jand'an internal annular flange u on thevvallsthereof, seatbase, a removable I seatfplate thereon, means engaging the "seat base and cap for adjustably securing the ing the seat base and a shut ofiE' formed at their jointure by the rotation of the seat 10 base thereon.

EDWARD OMALLEY.

Witnesses:

R. MORGAN, JOSEPH E. LINDQUIST.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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