US997321A - Valve. - Google Patents

Description

F. M. PATTERSON.

VALVE.

APPLIUATION FILED MAY 21, 1007.

latented July 11, '1911 Ex wax K0 n I UNITED STATES PATE FFICE.

ranmnnt n. ram-amen, or rnm anenrnu', umnvmg- Assionoa 'ro PATTERSON-ALLEN ENGINEERING COMPANY, A OOBPOIA TIOH 01' m It) t VALVE.

Specification of Letters Patent.

Patented July 1'1, 1911.

To all whom it may concern:

. 'a simple and eflicient construction of valve duction and which shall maintain itself in perfect operative condition by the norma 0 station of the; valve in its commercial app lcation. My invention consists of a casm having assage-way with whic the. in-

eduction pipes are connected andprovided with a valve-seat and latera extension thereof, combined with a valve adapted to form a sliding cooperation with the .seat, a ivoted armfor moving the valve, I efor operating the arm extending the and 'formmg therewith awater-tight joint, means for guiding the pivoted arm, and springs tween the pivoted. arm and valve and between the spindle and arm whereby both thevalve and spindle are adapted to have a. motion away from the arm to take up the wear automatically. v

My invention also com rehends details of must tion which, wi f tures a ve sP 'fied, will. be better understood by re erence to' the drawings, "in

- v which the I alve on is a 45.

Figure 1 is an elevation of my improved valve f'with one-half of the 5 8 removed, the interior construction; Fig. 2 is N, rted plan view of a portion of the I casingi FigLg is'f'a fiion' o 0' i a tional view of a del a il. 1 B 4.11mi 0 are two parts constituting the casi g. A, and these are togetherv by eans ofholts Tor in an other suitable man er. The part'B co essentially 'of a disk-shaped 1Blatehaving the transverseeduQtion port openin t rough a valvefi sent! E slight! raised a vefthe innersur face? of the p ate. The eduction po'rt D is pr o'rably screw-threaded for the reception of 1 pi andis also provided with an an- I the port D.

provided with null}? 8? f whoee ,internal diameter is approximately equal to the diameter of the pipe or tube which would be screwed into Secured within the rt above the flail e f is a hard steel bu ing which is forc into position and is ada ted to take u the wear of the water 01' ot or material w ich may be caused to flow through the port D. This bushing F is preferably of slightly less thickness than the depth between the valve-seat E and the flange f, so that the upper edge of the bushing does not quite reach the level of the valve-seat. In this manner the valve-seat E, being of cast iron, may he permitted to wear uniformly under the action of the valve N and may be leveled when desired by a file or otherwise when it becomes worn, without interference from the exposed upper edge of the bushing F. The casing is preferably cylindrical and the inlet and eduction ports are preierabl located to one side of the center, so that t e valve-seat E.

may extend in a segmental manner to one side of the eductlon port,- as indicated in Fig. 1 to permit the valve N to be moved laterally awa from the portin opening it and yet at al times to support the valve N in aproper manner.

' The valve-seat E is to one side of an aperture W in the plate D through which a spindie H extends and which'it snugly fits, the said spindle being adapted, through means to be described, tomove the valve over the valve-seat, The outer and f thespindle H is formed with a square he d J adapted to receive thesquare socketpo ion of'a handwrench or lever, and by whic the spindle is adapted to be rocked in opening or closing the valve. The inner and oi the s indie is n th th at flange H ia-nd al vs the a'nge m 0 square or poygona ortion P. The flange H rests in contact ith an inner-bearing face b of the late B surrounding the makes. a liquid-t1 tight ght joint. To insure a re Joint between theparts H' and b e the latter with the rib R preferably .Vdm'ped and the'former with an annular V-shaped groove k-into which the rib as. The construction is such that; the wearing of the rte R h insure: a tightness of the joint at a l-tinies. i

.Fittin the spindle moved'over the valve-heat E.

indle and with which it polygonal and L of the ,isan armlladaggedfiiiabsu of this arm M is rovided with a large apex-. ture whichmay he brought into almement with the induction and eduction ports, as shown in Fig. '3 and approximates the induction port in area. he valve N has a flattened surface which rests u on the valveseat E, and has an upwardly irected cylin- 'drical hub n which loosely fits the apercause it to snugly fit to its seat.

ture in the free end of the arm M. A coiled spring 0, preferably formed of flat sheet metal coiled upon itself, is interposed between the arm M and the valve N and shielded within an annular recess m in the arm, so that at all times there is a downward ressure from the arm M upon the valve to Surrounding the polygonal portion of the-s indle H and interposed between the arm and the flange. H is a second sprin P of a similar character to spring 0, the 0 hot of which is to normally cause the flange of the-spindle H' to be forced against its seat I) to prevent leakage. The arm M above the spin dle H rests directly against a bearing cl in the part C of the casing and holds the arm M against the thrust of the s ring P. The polygonal part L of the spindle does not quite reach the bearing '03 so that the spring P presses the arm M against the hearing, but the spindle itself does not touch it, and therefore only receives cooperation with the hearing d through the arm M and the spring P. The bonnet or part C" of the casing is c lindrical and forms an inclosing cap over the valve mechanism, and is also provided with the induction port D, by which the medium to be controlled is permitted to pass to the valve. This induction port is prefer ably provided with screw-threads for connection with the supply pipe.

With the parts in the position shown in the drawings, and with the water or other medium entering the induction port D under pressure, it acts upon the exposed surface of the valve firmly to its seat E and at the same time it alsooperates upon the inner exposed surface of the spindle H to force its flange H tightly down upon the bearing surfaces R b. As the exposed face a of the valve N which fits the aperture in the arm M approximates the induction port in area and is located immediately opposite that port inside of the casing, it receives the impact of the entering liquid and the valve N is thereby forced in stantly upon the seat about the eduction port. When the wrench or handle portion is rocked, the spindle H is also rocked. and likewise causes the arm M to swing radially and carry the valve N with it. By causing the valve to travel laterally to the solid part of the valve seat E. the valve port is opened and presents a. thrhugh passage-wav with all the advantages of .a gate valve. When the valve opens the eduction port, the pressure by the said valve N to force the said valveupon it becomes greatly reduced, and excessive friction upon the valve-seat becomes eliminated. The arm M is at all times s ring pressed against'the bearings 0 and d, w ereby it not only operatesas a means to shift the valve N, but also as a means constituting an abutment'agamst which the Springs 0 and I press in their operation to hold t e parts N and H down to their seats. \Vhen themedium being controlled is under pressure, the springs O and to insure th liquid-tight joints between the parts N, E and H, b, respectively; but when there is no "pressure or material pressure within the bonnet, the springs then perform their function of making water-tight joints to revent leakage. This would be particular y evident when employing my improved valve as a blow-01f valv for a steam boiler in which there would be no material pres- P are not necessary Y sure on the valve when there was no'steam pressure. a y

In will be seen from this construction of valve that there is no stufiing-box necessary for the spindle H. There are no set screws required for adjusting the arm'M, and'consequently no excessive pressure will come upon the valve N sl'iould the seat E become worn on a slight incline,

the valve owing to the fact i that there is more pressure upon when over the educti'o'n port-at-the time of opening than there is upon the valve when moved laterally with respect tothe said eduction port. By employing springs in the manner described, the liquid-tight joints are maintained .without excessive wear upon the parts constituting the joints, and no special care is required on the part of the engineer in the practical employment or adjustment of the valve in use.

The valveseat E is preferabl of no greater width than the diameter of idle valve N, so that every, ortion of it is traversed in opening and closing the valve. In this manner, the wear on the valve and on the valve seat will be uniform,

remain in operative condition for a long period. When it is desired to, level the valve-seat E or valve N, it is onl necessary to separate the parts B and C o the casing A and to remove the valve N and smooth it upon the file or other flat surface should it become abraded. or unevenly worn, and also a 'and consequently the valve as a whole will ithou m ing and obviatin th E become so I .collar forming a ground ma be ressed out and ground down; after which t ie said bushing 18 ressed back into position again.- Ordinari y the bushing needs no attention. By means of the bushing no excessive wear comes upon the edges of the valve-scat by the passing water or other medium controlled by the valve when bein discharged from the educt ion port.

iile I" referthe construction shown as being excel ently adapted for the purpose of my invention, the details may be modified without departing from the spirit of the invention.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a valve, the combination of a case having induction and eduction ports in line and a valve-seat'surrounding the eduction port, with a s indle extending through the case to one si e of the orts and having a collar forming a ground oint with the inner surface of the case, a valve 0 crating arm mechanically connected with the spindle so as to rock with it but ad'ustable upon the spindle in, the direction 0 its axis, a valve loosely connected to the free end of the valve olperating arm, and a sprin surrounding t evalve and between it and t e arm whereby the valve is continual] pressed upon its seat and the arm is force against the inner wall of the case as a. guide.

2. In zrvalve, the combination of a case having induction and eduction ports in line and a valve-seat surrounding the eduction port, with a s indle extending through the case to one si e of the ports and having a collar forming a ground oint with the inner surface of the'case, a valve 0 crating arm mechanically connected with the spindle so as to rock with it but adjustable upon the spindle in the direction of its axis, and having its free end provided with an aperture and an annular groove surrounding the aperture, a valve having a stem fitting the aperture so as to be loosely connected to the free end of the valve operating arm, and a {sprin surrounding the valve-stem and arrangeil in the annular groove and between the valve and the arm whereby the valve is pressed. upon its and the arm is continually forced against the inner wall of the case as a guide.

3. In a valve, the combination of a case having induction and eduction ports in line and a valve-seat surrounding the eduction port, with a s indle extending through the case to one si e of the '"1 rts and having a i int with theinner surface of the case, a valve operatingi arm mechanically connected with e spin le so as to rock with it but adiustable upon the spindle in the direction 0 its axis, a valve loosely connected to the free end of the valve operating arm, a spring surrounding the .ports, a valve operati valve and between it and the arm whereby the valve is ressed u on its seat and the arm is force against a inner wall of the case as a guide, and a spring carried by the spindle to press the valve operating arm against the case as a bearing.

4. In a valve, the combination of a case having induction and eduot-ion ports in line and a valve-seat surrounding the eduction port, a valve adapted to slide laterally over the said seat, a s indle arran to one side of the ports an journaled 1n the case a valve operatingarm loosely connected with the spindle so as to berocked with it and adjustable in the direct-ion of the axis of the spindle, and a sprin surrounding the spindle for pressing the va ve operating am against a hearing in the case and away: from t e spindle.

5. In a valve, the combination of a case having induction and eduction ports in line and a valve-seat surrounding the eduction port, a valve adapted to slide laterally over the said seat, a spindle arranged to one side of the ports and journaled in the case and having a collar forming a ground joint bearing with the case, a'valve opera ting nrm loosely connected with the spindle so as to be rocked with it and adjustable in the direction. of the axis of the s indle, and a spring surrounding the spind c and resting upon the collar for pressing the valve operating arm a inst a bearin in the case and away from t e spindle an the collar of the spindle tightly upon its bearing.

6. In a valve, the combination of a case having induction and eduction orts in line and a flatvalve-sent around he eduction port, a flat valve for the valve-seat, a spindle journaled in the case to one side of the the valve eonnected wit the spindle, am a hardened metal bushing within the eduction port and extending towithin a short distance of the valve-seat so as to protect the ed 0 of the seat but out of contact with the .va ve when closed.

7. In a valve,th e combination of a case fhaving induction and eduction rts in line and a valve-seat around the notion port, a'valve for the valve-seat, a s indie jOtlP- naled in the case to one side of the ports and making a ground joint therewith, a valve opera-tin arm for moving the valve connected with the spindle, a spring carried b the arm for pressing it against the case a jacent to the induction port and the valve against the valve-seat at the eductipn port, and a hardened metal bushing w hin the eduction port and extending towithima short distance of the valve-sent as to prowith the valve when closed 8. In a valve, the combination of a case with means for operating the valve consistarm for movin r "tect theedge of the seat but out of'contact loosely sustained in the free en spindle, an arm rocked by movable relatively to the e in the direction of its axis a valve, of the arm, a sprin between the arm and valve, and a secon sprin for press'i the arm; a from the spin Ie, the severe parts be-v. i inclosed within the case so as to be su 5 ported-and guided between the two we '3- thereof. n

9. In a valve,'th'e combination of a case having inductionand eduetion ports and a. valve seat, a rocking a'rm guided against the case, a valve guided against the valve-seat" and moved by 'the-rockin arm, spring de' vices for pressing the roe ting arm against the case and awe from the valve-seat, and a rocking spind e extending through the case for operating the rocking arm.-

10. In a valve, the combination of a case having induction and -eduetion sorts and a ing of a the s indie an spind spring to press and a spind e for rocking valve-seat, a rocking arm gui ed against seat an moved by the rocking arm, a spring device for pressing the rocking arm against the ease and away from the valve-seat, a the valve upon its seat and awe from the rocking arm, and a rock sha t for operatin the rocking arm.

11. In a valve, t e combination of a case having induction and eduction orts and a valv'eseat, a valve for the va ve seat, a

a loose connection with rockin arm havin the vaive and gui ed agfinst a fixed guide, a spring carried with t e rocking arm for 'continually ressing the valve upon its seat,

the rockin In testimony of which invention,

hereunto set my hand.

FRANKLIN M. PATTERSON.

, Witnesses:

R. M. HUNTER, R. M. KELLY.

arm. have

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