US1588175A - Mixing valve - Google Patents

Description

June 8 1926. 1,588,175

A G. s. EBLE MIXI NG VALVE Filed 00T 26, 1922 -2 Sheets-Sheet 2 INVENTOR GRO VER S. EBLE A TToR NE YS Patented J une S, 1926.

l UNITED STATES PATENT lor-rice. N

'Gnovnn s. nenn, on NEW YORK, N.V.Y., Assreno'n To FRITZ lzinennn, JR., oFNnw j i YORK, n. Y. f v l ivrixine VALVE.

i f Application filed October 26,1922. Serial `No.'-596,95'7.

' either cold water alone or hot water alone,

or a mixture of both in variable proportions. The object of my invention is to provide a very leflicient apparatus of'this class which will afford special `facilities lforassembling, dismembering, and adjusting the parts, to-

gether with other advantages which will apj pear from the detailed description following hereinafter.

IVithout intending` to restrict myself to the particular constructions illustrated, I will now explain two satisfactory einbodiments of my inventiony as shown in the accompanying drawings, in which 1 is a central .section through one forni of my invention, taken on line 1-1 of Fig. 4, with parts ybroken away, and showing the valve fully closed; Figs.v 2 and' 3 are partial sections,kon the same plane as Fig. 1, but Fig. 2 shows the valve in a partly open position in which it delivers -cold water only, while Fig. 8 shows the valve opened'to a greater extent so as to discharge a mixture of hot Vwater and cold water; Fig. 4 is a section online4-'44 of Fig. 1; Fig. 5 is a perspective view of one of the valve. parts; Fig. 6 is a section on line G-Gof Fig. 1. with parts broken away; Fig. 7 is a detail axial section of one of the parts; Fig. 8 shows another form of my invention, 'n in a section taken on lineS-S` of Fig. 10 and I corresponding to Fig. 1; Figs.y 9, 10, `and 11 are sections on lines 9-9, l10--10, and 11-11 respectively of Fig. 8; and Fig. 12 is a perspective view of one of the parts of the mechanism.

In the drawings, the. axis of the valve is shown vertical, and for the sake ofconvenience I have used terms such as upper and lowerf in describing the relation of'certain v parts g' it will be understood, however, that the valve may be used'in any desired position. c y l f The device illustrated in Figs. 1 to 7 comrises a lower casing member 2O provi-dedy in its u per portion with a cylindrical recess or e'iamber surrounded by an Ainternally threaded wall or flange 2i, at the bottom of which 'is arranged a plane tlmremital) 'wall other for hot water.

or partition22. Below this partition'are three compartments 23, '24,25 separated by rvertical partitions 26, 27 28 whichfextend downwardly from the partition 22 to the Utl bottom wall ofthecasing member 20, a cy-l lin'drical wall 29 reaching from said bottom wall to the partition 22, thus forming a pocket or well 30 open at thetop.` The two compartments 23, 24, which inthe construe`- tion shown are of the same size andfsyin`- A'metrioalI to the plane ofthe partition 27,

are inlet compartments con'imunicating with spuds 31, l32 respectively, one of these serv.-

ying for the supply offcol'd water, l and the In the drawings, it has 1 been Aassumed that the spud 31 is connected with the vsupply of cold water, and therspud y32 with the supply of hot water.v The spuds may be threaded externally or internally p for yproper connection withthe'water'supf ply, internal threads being shown. rIhe partition or wall `221'ifs `provided with` two preferably segmental through openings 33,

`34 which are. ofthe same shape and placed symmetrically with respect to the plane ofi*- the partition 27 On its outer side, each opening 33, 34 is provided with an extension 35, 36 respectively, in a diameter corresponding to that in which the diametricalthird Spud, 37, is located 'at right angles to the other two, and communicates with the third compartment, "25, which is the outlet compartment and has been shown somewhat smaller than the inlet compartments, al-l thoughthis not necessary.

On the' upper faceof the partition 22 isset the valve-seat dislBS having a central port 39 which communicates with a recess 40 provided in the'lower-face of's'aiddislc, saidy recess extending in a' substantially radial direction and being adapt-ed tov communicate atits outer end, `with either of the openings 83, 34. In the position shown (see. particularly Fig. 6), therecess v4() communicates with Ithe opening 33, and therefore with the compartment 23 and with the spud 31. The disk 38 is' further providedl with segmental ports 41, 42, of which the formercommunif this position of the parts thecold water may indeed find its way along the fluted stem 63 'the word Shut of the indicator ring or plate 80. The vhandle has been inserted originally in such a way that it will point to Shut when the member'55 is screwed in fully. Now suppose that we turn the handle slightly toward the word Cold.V The interlocking of the teeth 59 with those of the member 71 compels the member 55 toturn With theihandle 72, yet as the' teeth of `one of these members may slide lengthwise on those of the other membeigthe threaded member can move axially or upward at the same time that it turns with the toothed member 71. This lifting movement carriesy the parts to a position of the character indicated in Fig. 2; that is to say, the lower face of the portion 62 is carried away from the washer 70, so that a passageis openedy for the cold water, along the flutes of the stem 63, to the chamber above the washer 70. The coiled spring 69 is strong'f enough to prevent the pressure of the hot water (acting throughv the port 41)- from raising the valve member 50, 52, 53 from the disky 38.' Under thecireumstances justdescribed,

- therefore, only' cold water will passv into the chamber above the washer 70, such cold water escaping upwardly through the holes 57 and then passingdownwardly between the shell of member 46 and the outer surface of member or sleeve 49,"then passing through the port 42 and opening 43 into the compartment 25 land through the spurl 37 to the` place of use. Suppose the handle 72 is then turned farther in the same direction (anti-clockwise),- toward the word Mix., At a certain point of the further lifting movement thus given tothe member 55, the valve member 50, 52', 53 will be raised, either by the enga ement of the top flange 53 by the bottom ange 54 of the member 55, or (and this will generally be preferable), by the'engagement of the upper end of the nut portion 64 with the bottom plate 52. It will be obvious that by properly dimensioning the parts, one or the other of these ways of lifting the member 50, 52, 53 will be obtained, as desired. I generally prefer to lift bythe action of the nut por- `tion 64 for the -reason that the flangev 53 is small and therefore liable to become worn or damaged if employed to receive the lifting strain. As soon as the bottom plate 52 is ber surrounded by the sleeve 49, such hot water passing through theslots 51 `and thus reaching the holes 57, `fromwhich it passes vto the outlet` in the same manner as dex scribed above with reference tothe lpath of 'the cold water. v The cold water will no "face off the plate v52, and then up and in? wardly through the slots 51, mixing with 'the hot water and following the same path from the interior of the body 50 to the'outlet spud 37. This mixing position is shownl in Fig. 3. Upon turning` the handle 72 still farther in the same direction, toward the word Hot, the upward movement of the member 55 will continue until it is `arrested by the engagement ofthe plate 66 on the nut 65 with the lower surface ofthe dislr` y38, at the recess 40 of said disk. Inasmuehas such engagement isof a watertight character, the cold-water passage throughthe central port 39l will thus be closed, 'and lfrom that momentv on only liveredfthrough the spud 37. v

Fig. 1 shows the vertical or axial dimension of the engaged portion ofthe toothed 'member 71 smaller than thev corresponding dimension of the threaded flange 45. With this arrangement, it is possible to first Screw the'member 55 down fully, before applying the member 46, then screw the said upper casing member 46 but' slightly on the lower easing member and vthen withdraw the toothed member 71 from engagement with the teeth 59 by an upward pull on the handle, until the upper `face of said toothed member 71 engages the lower surface of the boss 83 on theupper casing member 46. Owing to ythe special relation of dimensions above referred to, the clearance between the lower surface of the boss 83 (with the member 46 almost fully unscrewed fromthe memhot water will bedeber 20, but still in threaded engagement v therewith) and the upper surface of the member 55 (with thelatter in the lowermost position, asin Figs. 1 and 8) will be greater theV handle will be moved down to `bring the toothed member 71 into engagement with the teeth 459 of the member 55, and thereupon the upper casing member 46 would be screwed down fully,to the position shown in lFig. 1. It will also be noted that the handle 7 2 ismade with a bend of smooth curvature,

and thatv the gland 77 hasy a curved innersurface in yengagement with the handle; am thus enabled yto make the handle vin one piece and yet introduce and withdraw-n -it readily when desired, after unscrewing the upper membei or bonnet 46. While the bonnet is screwed down, however, lthe handle cannot be removed, since the means (screw 74) holding Vthe handle is located within the casi-ng ofthe appliance. rlhe bonnet ican be removed only with the aid of a special large wrench suchas is not readilyavailable to the casual sneak thief. The nut -7 8 likewise cannot be removed unless the bonnet is first lifted off fand the handle withdrawn. Theft of vtheexposed .parts'of the appliance is thus vrendered di-fhcult.

In some cases it may be desirable to 'use the spud 31 for connectionwith the hot water supply, and the spud 32 as a cold water inlet. To enable this to be done readily, I have provided th 4disk 38 with an additional port 42', similar to the port 42, and llocated symmetrically thereto. In the position illustrated, this port 42 lies on a solid -portion of the :partition 22, and is closed, being in watertight engagementwith said partition. When itis desired to use spud 3l for 'fthe rhot water connection, and spud 32 vforcold water, the upper casing member 46 willbe'screwed off, Vthe disk 38 lifted torge'ther with the parts supported thereon until the heads ofthe screws 47 are clearof vthe :partition 22, the disk with said parts would then be given a half-turn about its axis, and after :replacing the disk `in this ynew position, with the screw heads 48 in the eX- tensions 35, 36 ofthe ports 33, 34 respectively, the upper' member 46 would be screwed down again. in Athis new assembly, the port 42 will be Lin ythe position previously occupied vby ythe port 42, and the port 4l will exchange positions with the recess 40. That is to say, the recess 40 will nowy communicate with the port A34, the 1port 4l with `the port 33, and the vport 42 with the :pont 4 3, while the port 42 will register'with, and be'clo'sed by, Ia solid iort-ion'of -the parftition 22. Q

In `will be noted that -in ltaking; the appa.- fratus :apart there is :no need of disturbing .ithe lower casing member 2O or the connections `made with itsspuds-3l, 32, and 37, and ythat after unscrewng the upper member or bonnet 4 the disk may be li fted olf with the parts supported thereon, as 'has been stated above. f l

'ln the rform of my invention illustrated 'bly FigsyS to l2, the screws 4? secure a sleeve 49 similar to the sleeve 49 but having its 'internal thread continued farther down, The upper portion of this internal thread co-operates with the external thread on the member 55, of substai'i'tially thesame `construction as the member 55. The top :plate 56 however not relied upon to furlessees nish a. passage for the water, but lhas la .screw-threaded opening to receive a screw 84, for a purpose to be-stated presently.k In order that the position 'of Vthe screw 84 may be adjusted if required, I have shown `two openings 35, located at about `w30." from vthe opening inr which the screw 34 is placed, and also threaded to receive said screw; `these extra openings 85 `how-ever may vfbefomitted.

llhen they are used, .they form passages for i a small portion of .the Water, but Athe mai-n flow of lthe water 'is through a `different path, fas will be explained below. 'The separable connection at 6l, 62 is the samefas in the first vform of my invention, but ythe stem.-v

63 is 'of a diameter -to pass with 'a sliding fit through the central port 39 vof .the disk 38, and is made withspiifal grooyesithrough which, when the head 62 iisralised., water Amay Ip ass from th'erecess 40 .to -the .chamber above the ydisk 38. It will be noted "that in `this form of my invention the lower surface of the head 62 comes into `sealing` :engagement with the upperfface of the -disk k38, the vbottom plate 52 of the valve member body 50' .in this ycase controlling only the l.port 4l.

through which hot water passes tothe chamber above rthe disk 538. The 'ou-twardly-extending top flange 53 of this yal-ve body is adapted to lbe engaged by the inwardly eX- "monding Afiange 86 at the lower portion'of a member o screwing into the .sleeve 49, rbelowgthe member 55.l Erom said uneinber `37 a `ian'ge or short ftubular -Aextension 188 .provjects upwardly, at lthe 1same vdistance from the airis as the screw 84, `and `this tubular lextension has al cut-out lportion 89 ig. 9) so that the member 55 may vbe given .a limited movement before xthe screw34 will come against the end of the eut-out 39 'and then ]'ior'tion of the 'sleeve 49".. 'silhe-otherparts vof this construction are the saine vas in Itho forni of my tinvention yfirst described.

The operation of they second lform of my invention iis as follows: Figx sho-ws the valve closed. If Lnow the handle f7 2 and the member 55 areturned toward theopen position, said member 55"., vfor-about one-.fourth of a `revolution, will turn without taking along 'the member 8??,the screw 84itraveling (anti-clockwise lin Fig. 9) -intheslotor Y plate 52 downto hold the inlet port 41.

cut-out 89. The head 62 lis lifted off the'disk 38, owing` tothe upward movement of the.

member 55', and thusl cold water will pass from the recess 40 to the,` outlet 42, through the passage' ,described above, edge of the tubular member 87 will press the closed at this stage of the oper-ation. As the handle7 2 is turned farther toward .the open position, the screw 84 will take the member 87 along, causing this member to rise, so that the flange 86 Willengage and lift the'flange 53,.thereby insuring the openinglof the in@l let port-41, although this opening will really occur, by the pressure of the hot water, as

soonas'the lower end of thev member 87 rises from the bottom flange 52.. In the closed position of ythe valve (Fig. '8) Athe head 62 contributes to hold the plate 52 seated. The iiangesj86 and 5,3 "might beomitted. As soon as the plate 52 islifted as described,

.a mixture of hotand cold .water will pass i to the outlet 42. A further turning of the handle V72 toward the open position will` bring the plate 66 at the top ofthe nut 65 against the lower surface of the. disk 3S, to

shut off the supply of coldwater, `while hot iirst turn in unison with the member V55 or 55 but as soon as the head engages its seat but lightly, friction willr besuiiicient to stop rotation of the head', and the member 55 or will from that moment on rotate alone, but .the head 62will stillA be pressed ldown axially. By this construction I prevent thel head 62 from grinding its seat. Similarly, the plate 52 is rotatably connected wit-h the spring 69 and witlrthe member 55, so that the said plate will not grind on its seat, but

. will allow the member 55 and the spring69 to turn without rotating the plate 52, as soon as the latter engages its seat. The same remark will apply to the plate 52 and tothe member 87 of the, second construction "described above.v

The disk 38A is preferably made ofrelatively compressible material, such as hard rubber or Babbitt metal, so that the clamping action of the two casing membersQO, 46 will readily produce tight joints at both faces of said disk.

The disk 38 has two inlet ports, 39 andi 41, of which the port 39 is controlled, vat the top, by the valve member or head 62, and, at the bottom, by the valve member 66 moving in unison with said head; The other port, 41, is controlled by the separately movable valve member 52 or 52', and is seated when the head 62 seals theupper or discharge end ofthe inlet 39. The spring 69,y

in the first. form ofmy invention, and the y @member 87,l inthe second form, constitute The bottomA holdingfmeans for keeping the valvemembe'r 52 or 52` seated while the valve member" or head 62 moves to a cert-ain `distance from its seat, The partsv54 or64, in the first form of my invention, and the part 84, vin the second form, constitute relieving means operated simultaneously with the movement of the `valve member or head 62 Ibeyondsuch distanceV from its seat, for stopping the` valve-seating action of said holding means.

4Some of the features of my invention are applicable to valves other*` than f mixing valves, as Will be evident from the appended claims.

Variousmodiiications may be made with-v out departing fromthe nature of my inven` tion as deiined yin the appended claims.

I claim:

1. In a device of the character described,

afvalve casing having a chamber with twor inlets and an outlet, 'a movable valve membercontrolling one of said inlets, rotary actuating means for pressing said valve member toward its seat,"said means beingy held to move in unison with the valve member toward and from its seat, but being connected with said member in such a manner as to permit rotation of the vactuating means relativelyto thevalve member whereby as soon" as the latter` is seated lightly, it will cease toy tu'rn,'thus` preventing a grinding action of the valve member on its seat, a separately movable member controlling the other inlet, rotatable holding means for keeping the,

second-named valve memberseated lwhile the first-named valve membermoves to a certain distancegfrom itszseat, and relieving means, operated simultaneously with the movement of said first-named valve member beyond such distance from its seat, for stopping the valve-seating action of said holding means.

y2. In a device of the characterl described,

a valve 4casing having a chamber with two inlets for the ladmission of different fluids and an outlet, a movable valve member cone, trolling one yof said inlets, a Iseparately movable valve member controlling the other inlet and opening in the same direction as the firstnamed valve member', and' heldseated` bythe pressurev of the iirst-named valve memberwhenthe latter seals the inlet it contro-ls, means for operating the first-named valve ,m'embeig means for keeping said second-named valve member seated while'the first-named valve member moves to a certain distance from its seat, relieving means, operated simultaneously with the movement .of said first-named valve member beyond such distance from its seat, for stopping the valveseating action of said holding means, and a third valve member, connected to share the motion yof' the. first-named. valve member toward and from the inlet controlled thereby, and arranged to seat on the side of, the inlet opposite to the side on which the rstnamed vmember seats, the distance, between the irst andV third valve members, and' the distance between their seats, being;4 so proportioned that the third'valve member will become seated only some time after both the first and the secondl valve'members have be.- c-Qme unseated.

3'. In a device of the character described, a. valve casing having a chamber with two inlets and an outlet, a movable valve member controlling one oi said inlets, rotary actuating means for pressing said valve member toward its seat, said means being held to Vmove in unison with the valve member teward and from its seat, but being,` connected' with said member in such a mann-er as to permit rotation of the actuating,V means relatively to the valve member whereby aS. Soon 'as the latter is seated lightly, it will cease to turn, thus preventing a grinding action of the valve member on its seat, a separately movable member control-i ling, the other inlet, rotatable hcl-ding means for ,keeping the second-named valve member seated while the first-named valve member moves vto a certain. distance from its seat, relieving means, Operated' simultaneously withl the movement of said' first-named valve member beyond such distance -from its seat, 'for' Stopping the valve-Seating aCtlOl of said holding means, and a thirdvalve member, Connected to Share. the mOtiol Of' the first-named valve member toward and' fremitheinlet controlled thereby, andarranged' to seat on the side of the inlet 0pposi'te to the side on which the firstnamed member seats, the distance between thel first and third valve members, and the distance between their seats, being so. proportioned that the third valve member will become seated only some time after both the iirst and the second valve members have become unseated.

4... The combination of' a valve ,CaS-lg ha ing twoidalnetrcally opposite inlets, at'equal;

distances from its axis, and an outlet, a valve plate having dierently lecated ports adapted' to register at the Sametime with the respective ports of the casing said valveplatev being reversible by turning)r it about Said axis, jwhereby either pert ofthe valve plate may be made to connect with .one inlet or the other, .andmeans for controlling the passage of fluid through said plate.

5. The combination ofla valve casingv having two inlets on dfiametrically opposite* sides of its axis', andan outlet, a valve plate having aport at a distance from such axis,

to connect., with one of; said inlets, and a central port with a recess .adapted to connect with the other inlet, said valve plate beingreversible by turning it about said axis, whereby either port ,of the val-ve plate may be madeto connect withV one inlet or the other, and mea-ns for controlling tlgie passage o'l iiuid through said plate.

6;. The combination @fa Valve; casingA having `two inlets on diametrically `oprmsitesides oi'its axis, and an outlet, .a reversible valveplate provi-dedl with two passagesv the inta-ke ends of which are adapted 't'o'magister1 with said inlets in either positionv olf thefvalve plate, while the discharge @nds of said passages have differentdistance relatiions" 'te'- saidaxis, and separate valve-members controllingl said' discharge ends;

7l The combi-'nationof aY valve casing'liaving two inlets and? an'outlet', avalve'plate adjustable for setting it in twoVv different p0- sit-ions` byl turning it about its anis, said valve plate'being provided with two pasl Sages the intake endsiof; which are adapted to connect with said inlets in eitherpositie-n-v tion oft the valve plate, while the discharge ends of' said passages have dilierent distance relations to said axis,V and separate val-ve members controlling said discharge ends, and carried by sai-,d plate so as-to preserve their position relatively theretoiin' either settingrof the plate. l

9. The combina-tion ol'pav separable valve casing, a perted plate located re'movably within said casing, and port.-con-trollingy means mounted on said: plate movably and" 5 carried thereby so that said plat-e may be removed from the casing togetherwith such port-controllingmeans without dist-'urisingA their relative position.

In testimony whereof I have signed? this;V

specification.

Gaovna s. einen.4

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