US1538912A - Valves including conduits for liquids - Google Patents

Description

May 26, 1925. 1,538,912

B. E. TAYLOR VALVES INCLUDING CONDUITS FOR LIQUIDS Filed Dec. 13, 1923 2 Sheets-Sheet 1 FEW Q g AK 25 (S r Z157. G 24 May 26, 1925. 1,538,912

B. E. TAYLOR VALVES INCLUDING CONDUITS FOR LIQUIDS Filed Dec. 15, 1923 2 Sheets-Sheet 2 v NEW 4/ M W a mm 2/ /3 If 20 3 5 I l I hue/770W Patented May 26,1925. I

UNITED STATES PATIENT OFFICE.

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VALVES INCLUDING: OONDUITS I'OR LIQUIDS,

Application filed December 13,1828. Serial 110. 680,033.

To whom it may concern:

Beit known that I, BURT E. TAYLOR, a

- citizen of the United States, residing at Mount Vernon, in the county of Westchestcr and State of New York, have invented certain new and useful Improvements in Valves Including Conduits for Liquids, of which the following is a s ecification.

M present invention relates to valves located in conduits, or pipe lines, through which liquids are transmitted, and its objects comprise provision of such valves so novelly constructed, positioned, and combined with their actuatingaccessories as to ensure more convenient and staple graduation, or completeness, of closure, less exposure to fouling, and readier and more perfect cleansing than heretofore.

.Some liquids especially susceptible to mfection or decomposition, as milk for example, though normally pure during their transmission leave meanwhile, and thereafter, films or deposits thereof upon the valve and its accessories which should, in order to prevent future contaminations, be thoroughly cleansed at least as often as transmission or flow ceases longer than relatively briefly other liquids contain or carry in themse so ves at all times undesired particles or impurities of specific gravity such as to settle, deposit, or adhere upon receptive surfaces of the valve or conduit at all. times, and particularly during suspension of their flow or transmission agitation. In the mauufacture ofcertain products, on industrial scales, it is economical to accumulate and store lar volumes of the liquids, fractions of whicli pumped through theextended-cond'uits or pipe lines referred to in such wise -as to supply from time to time as much as, and no more than, needed for the well known treatments required to obtain the desired final products. It follows that, correspondingly, the flow, or stream, through the pipe or conduit from such main source of supply to the location of the instrumentality productive of the product, and whet-her such flow be induced by gravity or by pumping etc., must, at intervals, be more or less checked or tem orarily completely cut off, as by a valve ocated within the conduit. Durin such pauses in the flow, the impurities re erred to, if present, have time to settle upon underlying surfaces of the conduit fore of importance.

are, at intervals, drafted or or valve, to which they may cling even after reopening of the valve for transmission of the next charge of liquid.

In industrial practice, it is unusual, if not impossible, to use a uniformly straight or,

I have discovered that if the valve be located below and proximate to where the flow or stream in such a conduit; turns, or bends, from upward to lateral or approximately level there will, of course, when the valve is closed, remain above it but relatively few of the undesired articles (owing to the correspondingly small volume of the su erlying liquid) to settle upon the more or ess horizontal underlying surfaces; while as to the liquid left stationary in the conduit below the valve this usually is in a column so extended, or dee that the therein contained particles have enough to find deposit-retentive surfaces before the reo ening of the valve and resumption of the ow. Such location of the valve, as ameliorative of de osits becomes therealso greatly facilitates attainment of the other objects of my invention which comprise provision of a valve and its accessories so constructed that those arts thereof which are the more exposed an susceptible to deposits, and also its accessories including particularly spindle, can, be, more conveniently than heretofore, reached or removed from the conduit for cleansing, or sterilization; and this also, and as is of prime importance, without, during the time of such treatments, impairing complete closure by the valve disc proper, so as to prevent exgosure of the liquid, or milk left in the con uit behind or below the valve. In other words, my aim has been and I have succeeded in providing a valve including its accessories which is, where most needed, readily and efiiciently cleanable, without relaxing its closure of the conduit.

I attain'my stated, and other useful objects by aid of the construction and parts, or their equivalents, illustrated in the accompanying drawings, in which ardly time to settle farn the other hand, it

" Figure 1 is a vertical central sectionof a conduit adapted to my purpose and of a therewith assembled specimen of my valve and its other accessories shown in eleyation.

Figure 2 is a like view of the principal atter is seen.

"ably, a right-an l 7 shown an upwar turnmg into a horlzontal,

Figure 3 is a similar view indicatin that a part of the conduit (shown in otted lines) has been removed and that a socalled sterilizing cap (in full lines) has been substituted therefor.

Figure 4 is a similar view showin a centering member for a hereafter descri ed purpose. Similar reference numerals refer to similar parts throughout.

Referring now to the drawn my conduit, or conductor ipe, comprises prefersection containing as passa e for the liquid. This section 1, is suitab y threaded at 2 and 3 for connecting by means of suitable sanitary union nuts, 4 and 5, to thimble 6 and to another vertical or upwardly extending section 7 of the conduit which, in this instance, carries the hereafter described bevelled valve seat. Section 7, is, in turn, threaded at 8 for connection to a thimble, 9. The continuations of theconduit from the sections mentioned, being respectively 10, leading towards the outlet, or for example, pan, (not shown) and 11, leading from t e main storage source of supply, (also not shown) are secured to thimbles 6 and 9 respectively as shown.

I impart a conical or male bevelled surface 12 (see dotted lines Figure 1) to my, in this instance, spirally rotatable circular valve disc 13, which is cooperative with a com lementarily bevelled female surface, 14, on t e inner rim of the upper end of said section 7 of the conduit and forms therein a valve seat which my said valve disc when suitably spirally rotated, as hereafter described, cooperateswith to exactly fit and produce a liquid-tight closure of the conduit. A cylindrical downwardly projecting stud is, as shown, carried by the disc 13, and is threaded to engage operatively with a complementarily threaded retaining nut, 15. This nut has, in the present example of my invention, an enlarged annular rim, 16, which, as shown enters, and is detachably retained in, a recess counter-bored in the section, 7 adjacent its lower 'end, and is rendered unrotatable, while the disc is being spirally rotated, by means of a usual spline, or key, 17. The rim of the nut also contains openings (in this instance two), 18, for passage of the liquid therethrough.

In order to rotate the disc, I provide a rotatable spindle 21 extending from outside the casing to operative contact with the disc, and means to ensure transmission of the s indles rotation to the disc these being, in he present instance, as shown a .T shaped extension, 20, of the spindle cooperative with a suitable slot 19 in an u ward extension of the disc. This spin e passes through the usual land 22 of the stufling box 23; but I a so provide additional means to ensure liquid-tightness, these consisting in my importation of a female bevel to the edge of the opening in the casing (section 1) through which the spindle asses and to the latter an enlargement, having a com lementary, male, bevel cooperative with the vel of said edge. The constant forcin into contact with each other operativel 0% these bevels, and thus the retention 0 the operative end .of the spindle in its proper place, I accomplish, in the present instance, by aid of the expansive spring 24, as shown. A hand wheel 25, and its retaining nut 26, contribute as usual to convenience o rotation of the spindle.

To produce as complete mutual fit as possible of the bevelled surfaces of the disc and its seat, I provide an alternative construction, shown in Figure 4, for use when required, and which consists merely in substitutin for the threaded nut, 15, a member 30 ifferin from the latter only in its being unthrea ed, in which case the member acts only as centering guide.

In Figure 3 is shown the substitution for section 1, of the casing, when cleansing or sterilizing is desired, of a cap, 29, to the convenience and effectiveness of which m construction is peculiarly adapted, as wil be readily understood by those skilled in the art.

Operation: To close the valve the spindle is rotated thereby causing the disc to rotate spirally down to its seat with pressure of the respective bevelled surfaces against each other proportional to the force exerted on the hand wheel, thereby making an exceptionally tight closure provided said surfaces have been accurately ground to exact com- Elementary fit with each other. The disc aving been thus seated is retained firmly in its seat and as long as desired, by enga ment of its threaded stud with my nut. l o open the valve, to passage of liquid throughout the conduit it 1s only necessary to rotate the spindle in reverse direction and to extent desired. Flow of the liquid and its extent, are thus positively controllable. To cleanse the upwardly presented, and therefore more subject to undesired de its, surfaces of the valve disc, and auxi iary parts including the spindle, it is only necessary to close the disc upon its seat as aforesaid and thereafter uncouple section 1 of the conduit .whereby convenient access is had to its indesired to be retained below the discbeingmeanwhile thereby separated and protected from contamination, and the in'urious particles therein suspended retarde from so far settling asto make adhesions, by the relativev great depth of the liquid extending essen-' tially vertically downwards from the under surface of the disc.

After the section 1, of the conduit has been removed for cleansing as described, should a sterilization of the exposed parts be indicated, the cap, 29, containing any well-known suitable sterilizing agent, may, as indicated. in Figure 3, be coupled on to the conduit in place of section 1, whereby it becomes possible to soak the said arts in the sterilizer as long as required, an this without any percolation thereof into the conduit or its then contents located below the disc. To repair or to grind the respective bevelled surfaces of the disc and its seat to more perfect complementary fit with each other it is only necessary to uncouple section 7 of the conduit, and substitute the unthreaded centering member 30 (Fig. 4) forthe threaded nut 15; then recouple section 7, uncouple section 1, supply emery or ground glass to over and around the disc, recouple section 1 and then suitably rotate the spindle until the desired extent of grinding to a more perfectly uniform surface is attained, it being of course understood that or this purpose the conduit should be entire y emptied of the milk or other liquid to be treated.

Having now described my invention what.

I claim as new and desire to secure by Letters Patent is the following, viz:

1. A valve construction comprising, in combination, a conduit section, a second conduit section separably connected therewith having a valve seat integral therewith, a coacting valve reciprocable in said first conduit section, means comprising a spindle removably connected with said valve to rotate same. and means removably secured to said second conduit section to actuate andhold the valve inany predetermined position relatively to said valve seat.

2. A valve construction comprising, in.

combination, a conduit section, a second conduit section separably connected therewith having a valve seat, a coacting valve reciprocable in said first conduit section, means comprising a spindle removably connected with said valve to rotate same, means re luovably secured to said second conduit section to actuate the valve when the spindle is operated and to hold-the valve in any predetermined position relative to said valve seat, and separate means adapted to be secured to said second conduit section when the last mentioned means is removed for centering the valve on said seat and permitcombination, a conduit section, a second conduit section separably connected therewith to actuate'and holdithe valve'in any prede-' I termined position seat.

4. A valve construction comprisin in combination, a conduit section, a secon conduit section separably connected therewith relatively to said valve having a valve seat, a coacting'valve reciprocable in said first conduit section, having a downwardly projectin threaded stud,- means comprising a spind e removably connected with said valve to rotate same, and

means, comprising a non-rotatable nut co acting with said stud and having a liquid passage therethrough, said nut being removably secured to said second conduit section, whereby the valve is centered and actuated to and from said valve seat.

5. A valve construction 'comprisinin combination, a conduit section, a secon conduit section separably connected therewith having a valve seat, a coacting valve recliprocable in said first conduit section, means comprising a spindle removably connected with said .valve to rotate same, means removably secured to said second conduit section- ,to hold the valve in any predetermined position relatively to said valve seat, and means adapted to be secured to said second conduit section to sealthe latter when said first conduit section is removed therefrom.

6. A valve construction comprising, in combination, a conduit section, a second conduit section separably connected therewith having a valve seat, a coacting valve reciprocable in said first conduit section, means comprising a spindle removably connected with said valve to rotate same, means removably secured to said second conduit section to hold the valve in any predetermined position relatively to said valve seat, and a closure cap adapted to be detachably secured to said second conduit section to seal the latter when said first conduit section is re moved therefrom.

7. A valve construction, comprising in combination, a right-handed conduit, a hollow section separably connected with the vertical part of said conduit containing an integral bevelled valve seat on its upper inner rim, a vertically-movable valve coacting with said seat and having a projecting threaded stud extending through said section, and a liquid passage member-removably secured to the lower inner rim of said section and threaded to coact with said stud to hold the valve in any predetermined position relatively to said valve seat.

8. A valve construction com rising, in combination, a right-angled con uit, a hollow section separably connected with the vertical part of said conduit containing a bevelled valve seat on its upper inner nm, a vertically-movable valve coacting with said seat and having a projecting threaded. stud extending through said section, threadmama ed means rexnovably secured to said hollow section and coogerating with said threaded stud for actuating the valve and holding same in any predetermined position relative to said valve seat, and an unthreaded centering member adapted to be secured to the lower inner rim of said section and sleeved about said stud when said threaded means is removed, whereby the valve may be centered .on .the bevelled valve-seat when the former is rotated in engagement therewith;

BURT E. TAYLOR.

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