US1175980A - Valve. - Google Patents

Description

W. L. OSBORNE.

VALVE.

APPLICATION FILED SEPT. 5. I9Iz.

1,175,980. Patented Mar. 21, 1916. l

mlllllllllllllll@ IEE A UNTTEB STATES 'PATENT @FFTCEO WELLIE L. OSBORNE, 0F CHICAGO, ILLINOIS.

VALVE..

Application filed September-.5, 1912 To all whom t may concern Be 1t known that T, WILLIAM L. Usonnn,

-a citizen of the United States, and a resident type in which the valve piece is providedY with an extension that fits into a reduced portion of the valve' opening, in advance of the valve piece, to protect the valve seat and body seat from wear due to the wire drawing action of the material passing through the valve when the valve is being opened and closed.

The invention refers more specifically to a novel removable facing member for the valve piece on which the valve seat is formed, the manner of fastening the facing to the valve piece md to the construction wherein the body of the valve piece is adapted to serve as the valve closure in emergency when the facing is removed.

The invention consists in the matters hereinafter set forth and more particularly pointed out in the appended claims.

n the drawings: Figure 1 is an aXial section of a globe valve equipped with my improvements. Fig. 2 is a bottom plan view of the valve piece facing member. Fig. 3 is a detail section of the valve with the facing member removed, and with the body of the valve piece arranged to constitute an emergency valve closure.

In the drawings, 10 designates the casing of an ordinary globe valve provided with the inlet and outlet branches 11 and 12, respectively, and with the interior diaphragm or partition 13 in which is formed the valve opening and which carries the body seat 14. Said body seat is herein shown as formed on the ring 15 which is screw-threaded in the horizontal portion of the diaphragm or partition 13.

16 designates the valve piece which is movable toward and from the body seat 14, said valve piece having the usual swiveling connection with the screw-threaded stem 17 that extends outwardly and has screw-threaded Specification of Letters Patent.

Patented Mar21, 1916.,

Serial No. 718,606.

connection with the bonnet 18 of the valve casing.

The normal seating face of the valve piece is formed on the facing member 19 which is removably applied to the lower side of the valve piece and is herein shown as formed to provide at its margin a conical seating face 20 to engage the tapered body seat 14.

` The said facing member 19 is shown as provided with a central opening 21 that fits over a downwardly extending Stud 22 of the valve piece 16, and said facing member is clamped against the valve piece by means of an extension member 24 that is screw-threaded to engage the lower screw-threaded end of the stud 22. Said extension member is made of a diameter to closely fit within the restricted portion of the valve opening formed in the ring 15 below the body seat 14, and is located at such distance in advance of the seating face Q0 of the facing member that it enters said restricted opening in ad- Vance of the closing of the valve, and leaves4 said restricted opening only after the valve is openedto a substantial extent. The said projection fits with a close slip fit within the restricted opening of the valve but the joint between the projection and the wall of the Valve opening is not sufficiently tight to exclude the passage of fluid past the projection when the valve is open 'at the seat, the amount of fluid passing the projection at this time depending upon the operating pressure of the uid. The projection prevents the fluid from passing forcibly between the body seat and the seating face of the facing member when said parts are only slightly separated and therefore prevents the injurious effects of wire drawing ofv the fluid. rlhe said valve facing member is provided on its lower face, radially within the circumference of the extension 24 with an equalizing or pressure reducing chamber 25 which serves, when the valve facing is removed a distance from the body seat, either when opening or closing the valve, to reduce the pressure of the fluid passing through the valve and through the narrow space between the projection 24 and the reduced opening circumscribed by the said ring 15, so as to thereby further reduce or minimize the wear due to the passage of the fluid across the valve and body seats, such as would occur if the chamber were not present. Preferably, and as herein shown, the circumference of the projection 24 is located l radially within the outer side of the champurposes.

ber, and the upper -wall of the chamber is made of concave cross section so that when material is passing upwardly through the valve, while the projection is within the restricted part of the valve opening, the jet issuing from the nozzle formed between the projection 24 and the reduced opening of the valve is given an inward, swirling motion so as to direct the same away from the valve and body seats, thus further minimizing the wire drawing action of the material passing through the valve.

The inner or lower face 26 of the valve piece is tapered on the same angle 'as the seating face 20.0n the facing member 19 and the upper or outer side of the facing membervis formed with a like tapered recess to fit over the tapered portion \of the valve piece. With this construction, if the facing member should become injured so a`s`to require its replacement, the said facing may be temporarily removed and the seating face 26 of the body of the valve piece may constitute the valve seating face for emergency If desired also, when the valve .l facing member is removed, the projection 24 may be retained, it being for such emergency use, spaced from the body of the valve piece by a spacing ring 27. The said body of the valve piece is likewise formed, radially within the circumference of the projection 24 with an equalizing chamber 28 whichservesx the same function as the equalizing chamber 25 of the seating facing member, as clearly shown in Fig. 3 of the drawing.

The facing member 19 fits loosely about the stud 22 so that when clamped in position it will adjust itself to the body of the valve piece and to the body seat in valve casing, regardless ofv slightv inaccuracies of alinement or fit yof Vthe parts. Preferably the opening 21 of the facing member is made non-circular, or square so as to facilitate its attachment in a grinding or polishing machine.

An advantage'of the construction and arrangement of the facing member is that the main body of the valve piece may be made of a metal of relatively low cost, while the facing member lmaybe made of a metal that is determined by the use to which the valve isl put. For instance, when the valve is used in high pressure-work, the facing, as Well as the seat ring, will be made of very hard, wear-resisting material. vWhen using the valve with corroding acids under low pressure, the facing member and, seat ring will b e made of a metal to resist the action of the acids, though such metalneed not be extremely hard.

Another advantage of the construction shown, is that, when the facing memberis injured and requires to be removed, the finished seating face of the valve piece,

which normally backs the facing member, may be temporarily used to close the valve and until another facing member is procured and applied. The application of the protecting projection 24 to the temporary seating face enables the latter to be used with considerable economy even though vit be made of relatively soft metal, as brass. Moreover, slight wear of the valve piece when thus used for emergency use does not materially affect the same as a backing for the new facing member. In this connection it will be noted that the facing member is made of substantial thickness, it'being a cast or forged piece, so that it is of substantial strength to withstand the seating pressure brought thereon. Therefore, in case of a slight malformation of the body ofthe valve piece, due to the use thereof as a closure, the said seating member will not when vforced against the bodyhseat follow the contour of said valve piece and thereby be distorted in l l a manner to produce a bad fit between the improvements are capable of use with other valves than globe valves as illustrated, and further that the structural details disclosed are capable of variation Within the spirit' and scope of the invention, and the invention is not limited to such details eXce tas here-- inafter made the subject of speclc claims and as imposed 'by the priorart.. l I claim as my invention e 1 In a valve for the purpose set forth provided' with a valve opening surrounded by a body seat, a valve piece provided with an integral seating face to engage the body' seat, a removable and renewable member having a seating face to also engage the body seat andv an annular surface to engage thel integral seating face of the valve piece, and a single concentric extensionat one side of the valve piece adapted to closely t said valve opening to coperate with the seating faces separately to protect said seating aces andv body seat, for the purpose yset orth.

2. In a valve for the purpose set forth, a

valvev piece provided with an integral seatv ing face to engage a body seat and with Va removable andL renewable member having a seating face to engage the body seat, and a single concentric projecting extension in advance of the valve plece to coperate with both of said seating faces, .the renewable,

member being provided between its seating` face and said projection with a pressure reducing chamber.

llo

nivaeeo 3. ln a valve for the purpose set forth, a casing provided with a valve opening formed with a restricted portion, a valve piece provided with an integral seating face to engage a body seat and with a removable and renewable member having a seating face to engage the body seat, and a single concentric, circular projecting extension in advance of the valve piece, and removably secured thereto to constitute means to fasten the renewable member in place and to enter and closely iit the restricted portion of the valve opening.

il. A valve comprising a casing having a body seat, a valve piece movable toward and from the body seat, a facing member removably applied to the valve piece and provided with a seating face to engage the body seat, and a projection on the valve piece to enter and closely fit a restricted part of the valve opening in advance of the body seat to protect the -said seating face and the body seat from the wire drawing action of the fluid passingthrough the valve, said valve piece being formed with a seating face to engage the body seat to close the valve when said facing member is removed.

5. A. valve comprising a casing having a body seat, a valve piece movable toward and from the body seat, a facing member removably applied to the valve piece and provided with a seating face to engage the body seat, a projection on the valve piece to enter and closely fit a restricted part of the valve opening in advance of the body vseat to protect the said seating face and the body seat from the wire drawing action of the fluid passing through the valve, said valve piece being formed with a seating face to engage the body seat to close the valve when the said facing member is removed and means whereby said projection may be applied to the valve piece in spaced relation to the seat thereof when the facing member is removed.

6. A valve comprising a casing having a body seat, a valve piece movable toward and from the body seat, a facing member re movably applied to the valve piece and provided with a seating face to engage the body seat, and a projection on the valve piece to enter and closely it a restricted part of the. valve opening in advance of the body seat to protect the said seating face and body seat from the wire drawing action of the fluid passing through the valve, said valve piece being formed with a sea-ting face to close the valve when said facing is removed, said facing member being provided between its seating face and said projection with a pressure reducing chamber, for the purpose set forth.

7. A valve comprising a casing having a body seat, a valve piece movable toward and from the body seat, a facing member removably applied to the valve piece and provided with a seating face to engage the body seat, a projection on the valve piece to enter and closely fit a restricted part of the valve opening in advance of the body seat to protect the said seating face and body seat from the wire drawing action of the fluid passing through the valve, said valve piece being formed with a seating face to close the valve when said facing member is removed, said facing member being provided between its seating face and s; id projection with a pressure reducing chamber and the body seat being provided with a like chamber, said projection cooperating with the pressure reducing chambers of the facing member and body seat, for the purpose set forth 8. A valve comprising a casing having a tapered annular body seat, a valve piece movable toward and from said seat and liave:

ing a tapered seat to oppose the body seat, a removable facing member having one side a tapered recess to engage over the pered seat of the valve piece and provided at its other side with a tapered seating face to engage said body seat, said removable member being unconiined its periphery, thereby permitting bodily adjustment of said member on the valve piece, and a projection removably litted to the valve piece in advance of the valve piece to enter and closely iit a restricted part of the valve opening.

9. A valve comprising a casing having a body seat, a valve piece movable toward and from the body seat, a facing member removably applied to the valve piece and provided with a seating face to engage the body seat, a projection on the valve piece to enter and closely fit a restricted Part of the valve opening in advance of the body seat' to protect the said seating face and body seat from the wire drawingaction of the fluid passing through the valve, and means coperating with the projection to confine the facing member' on the valve piece, said valve piece being formed with a seating face to close the valve when said seating face is removed, said facing member being provided between its seating face and said projection with a pressure reducing chamber.

l0. A valve comprising a casing having a body seat, a valve piece movable toward and from the body seat, a facing member removably applied to the valve piece and provided with a seating face to engage the body seat, a projection on the valve piece to enter and closely fit the restricted part of the valve opening in advance of the body seat to protect the said seating face and the body seat from the wire drawing action of the fluid passing through the valve, and means co` operating with the projection to confine the facing member on the valve piece, said valve piece being formed with a seating face to close the Valve When the said seating face is removed, said facing member and valve piece being provided radially Within the circumference of the projection With -pressure equalizing chambers,y for the purpose set the body seat, sald member being provlded radially Within the Seating face thereof with an equalizing' chamber, Iandcentrally dis- 15 posed means whereby the removable mem-` ber is attached to the valve piece. v In testimony, that I claim the foregoing as my invention I aliX my signature in the presence of two witnesses, this 29 day of 20 August, A. D.V1912.

WILLIAM L. "OSBORNE Witnessesz' W. L HALL, G. E. DoWLE.

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