US511510A

US511510A - Straightway-valve

Info

Publication number: US511510A
Authority: US
Publication date: 1893-12-26
Anticipated expiration: 1910-12-26

Description

Z-Sheetzs-Sheet 1. 1

(.No Model.)

, J. M. GOALE.

STRAIGHTWAY VALVE.

Patented Dec. 26, 1893.

IN vEN OR WI TNESSES.

2sneets sheet 2,

(N0 Modl.) 1

- J. COALE.

STRAIGHTWAY VALVE. No. 511,510. Patent-ed Dec. 26, 1893.

l 1. LITNOGRAPNING COMPANY UNITED. S ATES PAT T O FICE.

' JOSEPH M. OOALE, OF'BALTIMORE, MARYLAND.

STRAlGHT-WAY-VALVE.

SPECIFICATION forming part of Letters Patent No. 511,510, dated December 26, 1893.

' Application filed December 20,1892. Serialllor455fl75. (Nomodel) To all whom it may concern.-

Be it known that I, 'JosEPH M. OoALE, a citizen of the United States,- residing in the city of Baltimore, State of Maryland, have invented certain new and useful Improvements in Straightway-Valves, of which the following is a full, clear, and exact description,reference being had to the accompanying drawings, forminga part of this specification. v

My invention relates to straight-way valves, and has for its object to provide a valve which will not grind on its seat and will open gradually, and in which the function of the stem or spindle which carries the valve shall be, first by its rotation to raise the. valve from its seat without rotation of the valve, and afterward, and by a continuous movement of the stem or spindle, to rotate the valve and gradually bring its ports into register with the openings in the valve case; and for these purposes my invention consists of a casing or shell provided with opposite inlet and outlet openings, and suitable central openings at top and bottom to receive a by-pass valve carried by a suitable vertical spindle, a fixed journal, and a loose sleeve in which said spindle is'mounted, aoam ring between said sleeve and housing, a spring-controlled pin mounted in said sleeve, and a recess in the spindle adapted to engage the pin'on the rotation of the spindle; and finally a spring controlled rod mounted in the base of the lower central opening of the main casing and adapted to engage with the recess in a cam surface provided therein and operating to regulate or limit the throw of the valve; and in sub-com binations of these several features as hereinafter described and pointed outin the several claims. 7

In the drawings illustrating my invention, in which similar letters of reference refer to like parts in the several views, Figure 1 is a vertical sectional view of a valve embodying the several features of myinvention.

Fig. 1. Fig. 3 is a plan view of the cam ring, on the line ab of Fig. 1. Fig. 4 is a lateral section through the line 3-4t' of Fig. 1. Fig. 5 is a vertical sectional view on'a reduced scale through the line 56 of Fig. 2.

Y 1 is a lateral section through the line 1'-2 of The main casing A is provided with inlet and outlet openings A'- A, terminating in inner ends making openings 'A A of smaller diameter; and with top and bottom central openings V,-W in which is fitted a valve B preferably of the form of the frustum of a cone to adapt it to open gradually relatively to the inner vertical openings A in the easing with which the cone shaped openings B B of the valve register when the stem or spindle S is rotated. Such stem or spindle S is made preferably integral with the valve B and is screw-threaded at B Upon the casing A is mounted a journal D, screw-threaded at d, to adapt it to be readily secured to the casing A by corresponding screw threads in the latter. The spindles is mounted withinthisjournal D and also in a loose sleeve E'which is keyed to the wheel F. A part of the spindle within this journal is smoothly cylindrical, while its upper portion within the sleeve is screw-threaded. Acam ring R is placed between the journal D and the sleeve E in such manner that it annularly surrounds the sleeve E and is screwed to the journal D by screws n, or it -may be provided with a downwardly projecting screw threaded flange. The interior portion of the sleeve E is adapted in size to fit the spindle S, and the lower portion of the sleeve is screwthreaded to correspond with screw-threads B on the spindle S. A recess h is provided in the upper end of the spindle S corresponding in size and position to a recess 2? in the upper partof the sleeve E; and corresponding with I between the projection M and the surface of the recess in the wheel, is provided a push spring we, so that the tendency of the pin N is to press at all times against the periphery of the spindle S,'and also the tendency of the projection M is at all times to press against the upper peripheral edge of the cam ring R.

Said cam ring is shown'in' plan view in Fig. 3 and has a cam surface H on its upperperipheral edge. 7 It will therefore be observed valve casing being vertically straight.

that when the-spindle S is rotated the spring at will force the pin N into the recess 7b of the spindle when permitted to do so by the projection 1.:1 passing upon the cam surface H of the cam-ring R. This is accomplished" by about a quarter turn of the wheel.

The bottom central opening W of the valve casing is of considerable depth terminating in a base 20', and the lower end of the Valve 13 is provided with an annular extension K, so that when fitted within the opening NV of the casing, there is formed a chamber L, in which is placed a holder T for a spring rod T controlled by spring t within the holder which is secured to the base V. The tendency of the point of the rod is outward, and its normal position is within the curved recess m on the inner face of the wall of the valve extension K. A recess m is provided on the 'inner surface of the wall of the opening XV to allow the end of the rod to recede when forced outIof the curved recess m A portion on of the annular extension K of the valve is cut away, about a quarter section, to allow the end of the spring rod to be moved therein. The length of this opening m regulates or limits the length of turn or opening of the valve.

The operation of the device is as follows: The sleeve being loose, and the valve being held by the point of the rod T in the curved recess m in the valve, a quarter turn of the wheel to which the sleeve is keyed, will raise thescrew threaded spindle, until by such partial rotation the projection M will pass onto the cam surface H of the ring R and allow the spring pin N to enter the recess h in the spindle S, thus keying the latter to the sleeve and wheel. Until such action takes place, it is manifest that the first movement of the sleeve and wheel is to raise the spindle and valve and without rotation of them, whereasa continued movement of the sleeve and wheel, after the pin N shall have entered the recess h in the spindle, will be to force the point of the rod T out of the curved recess m and to rotate the valve, the limit of rotation being governed by the length of the opening m, which is so proportioned relatively to the width of the opening B of the valve as to bring said conical opening B into full register with the openings A in the valve casing.

The conical shape of the valve and the corresponding conical shape of the opening B therein will result in a gradual opening of the valve, by reason of the openings A of the It will also be observed that a valve and easing so constructed is a close fitting device by reason of the valve being first raised from its seat without rotation before being rotated to open the valve, and this action avoiding the constant grinding and wear of the parts usual in such valves. A further advantage of this construction is the ease and rapidity of opening and closing, a quarter turn being suflicient to close the valve and a three, quarter turn to bring it fully down to its seat.

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

1. In combination, forming a straight-way valve, the shell creasing, the valve and its spindle, a loose sleeve embracing the upper end of the spindle, screw threads between the spindle and sleeve, and means whereby the valve may be prevented from rotating on the initial rotation of the sleeve, and means whereby it may be rotated on the continuedrotation of the sleeve; substantially as described.

2. The combination with the containing shell A and its valve 13, each having openings registering with the other,of 'a spindle S carrying said valve, a loose sleeve E embracing the upper end of the spindle, screw threads between the spindle and sleeve, a journal D secured to the casin g and operating tomaim tain the sleeve in proper relation to the spin dle, means to prevent rotation of. the spindle on the initial rotation of theactuating sleeve, and means. whereby the valve maybe rotated on the continued rotation of the sleeve; substantially as described. 1 M j 3. The combination of the containing shell and its valve with openings registering with those of the casing, means to limit the rota tion of the valve, the spindle carrying said valve having screw threads on its upper end, a loose sleeve with interior screw threads corresponding to those on the spindle, whereby the valve may be raised from its seat without rotation, a journal inclosing the cylindrical portion of the spindle between said sleeve and the valve casing, and a cam ring R between the sleeve and journal andmeans for rotating the sleeve, the springcontrolled pin N adapted to enter the recesses 15 and him thejsleeve and spindle respectively; and a projection M adapted to bear against the periphery of the cam ring R; substantially as described.

4. The combination of the valve casing A having inner opposite openings A A and'conical shaped valve, a spindle carrying the same, a screw-threaded sleeve embracing the upper end of the spindle and means to retain the valve Without rotation on the initial rotation of the sleeve consisting of a spring controlled pin T adapted to enter a recess in an annular extension K of the valve; substantially as described.

5. The combination with the casing A, havin g a chamber L a recess 'm" in the wall thereof, a spring controlled rod T maintained in said chamber, the screw threaded spindle S, the actuating sleeve E, the valveB carried by said spindle provided with an annular extension K and recess m therein, means to limit the rotation of the valve consisting of a circular recess m in the said end K thereof; said rod T being adapted at one end to enter the recess m and at the other end to enter ing a hollowannular extended base W.forlnthe recesses m and m when broughtinto regsleeve by the initial rotation thereof and afister therewith, respectively, substantially as -terward rotated by the continued rotation described. thereof; substantially as described;

6. The combination with the shell or casing In testimony whereof I have hereunto af- I 5 5 of the valve; its spindle S, the journal D fixed my signature this 17th day of Decemmounted on the casing, a loiose sleeve screwher, A D. 1892.

threaded on its interior an actuating Wheel F, a spring controlled rod N, a projection M a k JOSEPH A carried thereby, and a cam ringvR between Witnesses: ID the sleeve and the journal whereby the spin- .GEO. M. DAVIS,

dle and its valve may be raised within the J OS. G. OOALE.