US2579962A - Valve - Google Patents

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US2579962A
US2579962A US4526348A US2579962A US 2579962 A US2579962 A US 2579962A US 4526348 A US4526348 A US 4526348A US 2579962 A US2579962 A US 2579962A
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Prior art keywords
valve
arm
trough
latch
water
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Virgil H Pruitt
Lewis A Medlar
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Fox Products Co
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Fox Products Co
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K21/00Fluid-delivery valves, e.g. self-closing valves
    • F16K21/04Self-closing valves, i.e. closing automatically after operation
    • F16K21/16Self-closing valves, i.e. closing automatically after operation closing after a predetermined quantity of fluid has been delivered
    • F16K21/165Self-closing valves, i.e. closing automatically after operation closing after a predetermined quantity of fluid has been delivered with means sensing the weight of said fluid quantity
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/7287Liquid level responsive or maintaining systems
    • Y10T137/7339By weight of accumulated fluid

Definitions

  • This invention relates to a watering device and morefparticularly to an automatic valve for use with a type of watering trough in which one end of thetrough rests on the ground or any other suitable support, and in-which the opposite end filling operation.
  • An important object of the present invention isgto devise an improved construction and arrangemento'f gravity 'latch,in which, instead of beingsuspended from its upper end, as in said Pruitt patent, the latch is supported at its lower end, so that it falls away out of engagement by gravity when released.
  • Another object is to provide an improved valve including a novel arrangement of parts in which individual standard componentparts are utilized whereby the advantages of mass production methods and automatic machines can be used in the manufacture and assembly of the valve.
  • Still another object of the'invention is to provide anovel and improved valve in which the individual componentsw of the valve mechanism are physically independent so that they are free to movein the valve chambers in such a way that the tendency of the valve, to become clogged is reduced to a minimum, and so-that they may be readily dis-assembled for cleaning.
  • Figure 1 is an elevational viewfof a watering device'using a valve made in accordance with the present invention
  • Figure 2 is a sectional elevational view of the automatic valve showingfth'e, valvesfheld in the open jpositionfb'y'the gravity latch;
  • Figure 3 is an elevational' view of the valve showing the latch inithe inoperative position
  • Figure 6 is a horizontal sectional view on line 6 6 of Figure 5.
  • the invention is shown as applied to a chicken watering trough of the type in which one end rests on the ground or is pivotally'attached to a suitable support, and the opposite end is suspended by'a suitable Wire or chaingto an arm on the control mechanism of the automatic valve for controlling the level of the water in the trough, As the water is taken from the trough, the reduction in weight permits the valve to open partially to permit additional water to flow into the trough.
  • The'valve assembly comprises fundamentally a structure having two orifices in series with valves for controlling each of the orifices in which one valve isno'rmally adapted to be closed under the influence of the pressure of the water source, and the other valve is adapted to be closed in the opposite direction by the valve control mechanism and against the pressure of the water source.
  • the valve assembly H] is operably associated between a suitable water supply pipe I I and the watering receptacle or trough l2.
  • the lower end of the valve casing is so arranged as to direct the water into the watering trough l2 With'a minimum of splashing.
  • the end of the water trough adjacent the valve assembly In is suspended by a suitable wire or bail i l from a valve actuating arm H, the opposite end of the trough l2 being pivotally supported at H) by bracket on a suitable support 6.
  • the valve assembly Ill comprises a valve housing I8 having what in effect is a two-way valve arrangement by which communication through the housing is shut off when the two-way valve is in either of two extreme positions; both of the valves being open at an intermediate position for a purpose which will be more readily apparent as this description proceeds.
  • the valve housing I8 is provided with't'wo aligned bores or passageways, I9 and 2il'extending inwardly from the opposite ends'of the valve housing.
  • the two .bores are separated by a partition or solid portion 2
  • the two valve seats being at the opposite sides of the partition zl in effect constitute two orifices in series in the valve housing;
  • the valves pe'r s'e, are in'the form of i suitable resilient gaskets 24 and26. Adjacent each of the outer sides of the gaskets are suitable identical rigid blocks or Weights 21 and 28 which are more clearly shown in Figure 5. As shown in the latter figure, these weights or blocks are polygonal in shape and extend in an axial direction a suflicient amount so that they will not cant and become lodged in the respective bores l9 and 20.
  • the blocks 21 and 28 are of such size as to have a loose fit inside of the valve housing,
  • the blocks have axially extending guiding edges at the corners of the polygon loosely engaging theinside of the passageways, and the portions of the blocks between such edges are spaced sufficiently from the walls of the passageways to permit the desired flow v of water.
  • An independent valve stem 29 is disposed within the restricted bore of the partition or solid portion 2
  • the valve: stem is smaller than the bore 25 so as to provide a fluid passage between thetwo orifices.
  • valve stem 29 is longer than the distance between the outer surfaces of the valve seats 22 and 23 so that when one valve member is against its associated seat the other valve member will between the inner walls of'the bores of the valve casing and the different parts of the valve, such asthe blocks,- the valve gaskets, and the intervening valve stem.
  • all of the parts are physically independent of each other to facilitate assembly and to permit relative movemerit therebetween and'are free to move in the valve casing which'tendsto prevent the formation of mineral deposits and to break loose or dislodge any foreign particles which may collect or'i the valve seats or in the connecting bore.
  • valve stem 25 prevents the bore of the partition 21, which is the smallest'o'p'e'ningijn the valve housing, from becoming clogged. Also, since the valve gaskets are free to move from side to sideof the valve casing, there is less tendency for the mineral deposits to become encrusted on the surfaces of the valve gaskets which come in contact with the valve seats.
  • valvegaskets and the bore 25 of the partition are not extremely critical, there are'certain relative limits for the best practical operation. It will be noted from the drawing that 'thebor'es l9 and 20 are preferably of; the same diameter. It has been found that the area between the inside of the bores and the hexagonal blocks provides sufficient clearance'to permit thenecessary flow of water.” It will be apparent that ⁇ the diameter of the valve disks'must be small enough to permit the water to new around them but in no event should these valves be less than the combined sum of the radius of'one of the bores T91 201, plus the radius of the bore 25.
  • valve casing l8 the diameter of thesevalve'ga'skets must be such that'when the valve -by the inner edge of the end of the supply pipe II.
  • the threads in the upper end of the valve casing l8 are so designed that the supply pipe i l screwslin the proper distance so that the valve 24 and the weight 21 cannot move far enough away from the valve seat 22 to permit the valve 24 becominglodged in the passageway 20 nor to permit, the valve stem 29 coming out of the bore 25.
  • the mass of the weights 2'! and 28 is not critical but preferably is of such value as to reduce chattering of the upper valve 24.
  • the primary purpose of these weights or blocks is to serve as backing members for the valve gaskets 2' 4 and 26 and also as spacers; They are preferably made from standard fabrication metal stock in order to reduce cost.
  • a suitable bracket 31 is suitably secured to the valve housing l8 by means for example, of screws 32.
  • Bracket 3! is provided with an ear 33 to which the valve operating lever ll is pivotal-ly'connected by means of a suitable headed rivet 34.
  • the inner end of the valve operating lever I1 is notched at Fla and the lever terminates in a head Ilb which engages the lower weight'28
  • the bracket 3] is also provided with ahorizontal arm 3'Bwhich extends atright angles to the part of the bracket which is attached to thevalve housing IS;
  • a suitable biasing'spring 3'l,'the lower erid of which ishookdin a hole 38- in the valve operating lever IT, is adjustably anchored to" the bracketarm 3 6 by 'meanstf a bolt 39am; a thumb nut-4o.
  • valve atrzogsea 2'5 gasket: 24x will close the: upper orifice. It 'will also be-seen from the drawings and the fore.- going description that downward movement.
  • valve operating lever [1 will cause both of the valves to be moved upward in unison, thereby moving the upper valve 24 from itsseat and-moving the lower: valve 24 toward its associated seat. Therefore, when suflicient .water. accumulates in the trough to overcome the influence of thewater pressure on valve 24 and the tension spring 31, .the lower'valve 26:will be closed against its associated orifice. Also, it will be. seen that if the weight is taken oif of the arm H, the spring 31 will move the outer endof the arm llupwardly so that the valve 24 will close under the influence of the water pressure. ..By
  • a suitable biasing force is applied to the lever arm IT to oppose the weight of the trough and the water therein so that the level of the water in the trough. atv which the valve closes can be regulated.:.
  • the present invention provides a novel gravity latch mechanism'45 which can be used to temporarily lock the lever l1 in an intermedi ate position whereby both the valves 24 and 26 are in open position to permit the water to flow.
  • this gravity latch comprises a. latch member 41 which is supported on and loosely pivoted at 48 tothe valve operating arm I1.
  • the upper extremity 41a of the latch member 41 is made parrow .bynotches 41b and 410. It will be noted that the notch 41b continues a greater distance from the upper end than does the notch 410.
  • this latch 41 extends through a rectangular opening 49 in thebracket arm 36; the length of the opening 49 being less than the width of the main bodyof the'latch member 41 sothat the shoulder 41d limits the upward movement of the member 41 through-the opening 491
  • the position of the shoulder 41d on the member 4 1 serves.as a stop to-prevent the spring 31 from raising the outer end of the arm l1 too high.
  • the shoulder 41e is so positioned on the member 41 that when it engages the underside of the bracket arm 36, the valve operating lever arm l1 will be in such a position asto place the valves 24 and 26 in their intermediate open positions so that the water can flow into the watering-trough.
  • the gravity latch can be very readily reset by merely pushing down on the valve operating lever [1 while at the same time pushing the upper end of the latchmember 41 to the right as shown in the drawings so. that the shoulderi41e engages the underside of the bracket arm 36. a
  • the valve actuating lever arm H is free to move up and'down under the influence of the varying weight of the water in the trough l2 and the tension of the spring '31.
  • the gravity latch will usually. be set in the locked position after the cleaning ofthe' trough when the trough will be empty and it will hold the valve open temporarily to permit sufficient water to flow into the trough to operate the latch device.
  • the gravity latch made in accordance with the present invention is a very important feature
  • a valve of the type described comprising a casing, a plurality of. aligned'boresextending inwardly from the opposite ends of said casing, a restricted partition in said casing between said bores and having an opening therethrough forming a communication between said bores, valve seats on the opposite sides of said partition around said opening thereby constituting valve orificesand seats, a valve member associated with each of said orifices, an independent valve stem of greater length than said partition extending through the opening in said partition and operably associated between said valve members whereby the latter are caused to move in unison under certain conditions in such relation that when one valve is in closed position the otherwill be in open position, a valve control arm pivotally connected to said housing, one end of said arm being operably associated with one of said valves for positivemovement thereof, and latch means pivotally intercoupled with said arm and adapted to be manually moved into frictional engagement with abutment means on said casing when said arm is in an unloaded condition to maintain the arm in valve opening position, said latch means being oriented
  • a bracket at tached to said valve casing said bracket having a. laterally extending arm and a laterally extending, ear, a'valve control arm pivotally connested to. said ear and having oneend thereof opera-hly engaging one of said valves for moving' the latter to closed position, means for resiliently biasing said. arm for movement in the opposite direction, a latch member freely piv' ote'dto said control arm, said latch member adapted to selectively engage said laterally extending bracket. arm to hold said valve control arm in an intermediate position and maintaining both of saidvalves open simultaneously.
  • a valve of the type'described comprising-a casing-a plurality of aligned bores,,extending. inwardly from the opposite ends of said casing, a partition in said casing between saidbores and having arestricted openingtherethrough forming a communication betweensaid bores, valve seats on the oppositesides of said partition around said opening thereby constituting valve orifices and seats, a valve member associated" with each of said orifices, an independent valve stem of greater length than said pz'irti'tionextending through the opening in'said partition and operably' associated between said valve mambers whereby the latter are caused to move in unison under certain'conditions in such relation that when one valve is 'in closed position the other will be in open position, a bracket at-.
  • said' bracket having a laterally extending arm and a laterally "ex-- tending ear, a valve controlarm. pivotally cone nected to'said ear and having one end thereofoperablvengagingi one of saidvalves for moving the latter to closed position, means for resiliently biasing said arm. for movement in .the. opposite direction, a latch memberfreely pivoted to said control arm at a point on'the opposite side of the pivotal connection with said ear, said. latch member adapted to selectively engage said laterally extending bracket arm to hold said valve control arm. in. an intermediate; .positionr and 8 maintainabothxot. said valvesopen. simultaneous: lyiu'ntiljsaidi. control.
  • bracket-is is,.detachably secured to said valve casingwherebysaid bracket and. valvercontrolmechanism can: be bodily. removed. as a .unit
  • valve housing havingv aligned .pas-
  • sageways extending inwardly from the" opposite ends thereof, and a solid portion betweensald passagewaysjhaving a restricted b'ore forming-a communicationbeiaveen saidpassageways, valve seats formed on said solid portion at the opposite ends of and surrounding said bore, a valve mam-'- bersubstanti-allysmaller than. said passageways associated.
  • each-oftsai'd seats a separate, rigid block arranged to bear upon each valve member, said blocksbeing shiftable longitudinally' of saidpassa'geways andihaving a plurality of axially extending guiding edges'loosely engagingtherinside;thereof,..and the portions of said blocksbetweensaid edges being spacedsufiicientl-y from the: walls ofthe passageways to-permit the desired flowfofwatr, said valve members being freely movable: laterally, independentlyof said blocks, with. respect. to. said seats, an independent valve stem of a length greater than that of said solid :portion extending throughsaid bore and operativelyi associated between said valve members whereby the latter.
  • valve-stem being: of substantially smaller diameter. than said bore, so as to provide a fluid passage' between itself and the walls of "the bore, a valve control arm pivotally connectedto said housing, one end-of said arm being operatively associated with one of said blocks for positively movingsaid block's, valve members and stem when swung in one direction, on its pivot, means biasing.
  • QJA valve mechanism of the "type described comprising a vaive housing having aligned passageways, circular in cross ⁇ section extending axially inward'fro'rn the bp'pos'ite ends' thereof, and asolid portion between said passageways having a'res'trictedjbore forming a communication' between: said passageways, valve seats formed on said'solid portionat the opposite ends stand I surrounding said bore, a valve member of substantially smaller diameter than said passageway's'associated with'each of said -seats, a separate rigid polygonal block arranged to bear upon each valve member and freely .movablesin respective passageways, said. blocks being of sumcien-t length axially to prevent canting:
  • valve stem of a length greater than-that of "said solid portion -,;extending through said ,bore and operatively associated between said valve members, whereby the latter are caused to move in unison under certain conditions, in such relation that when one valve member is in closed position, the other will be in open position, said valve stem being of substantially smaller diameter than said bore to afford a fluid passage between itself and the walls of the bore, a valve control arm pivotally connected to said housing and having its end shaped to project into one of said passageways and engage the polygonal block therein, whereby when swung on its pivot in one direction said arm serves to positively move both valve members, and means biasing said arm in the other direction.
  • a valve mechanism of the type described comprising an elongated valve housing adapted to be positioned vertically and having a fluid passageway extending therethrough, a pair of valve seats in said passageway, valve means cooperating with said seats to control the flow of fiuid through said passageway, a valve control arm pivotally mounted on said housing and extending generally horizontally therefrom, one end of said arm being operatively connected with said valve means for positively moving the same when swung on its pivot in one direction, means biasing said arm in the other direction, said arm being movable to either one of two extreme positions in which said valve means serves to shut off the flow of fluid through said passageway, and to an intermediate position in which said valve means permits the flow of fluid, a second arm fixed to said housing and projecting therefrom substantially parallel with and above said control arm, and a latch member for temporarily locking said control arm in said intermediate position against the force of said biasing means, said latch member being freely supported at its lower end on said valve control arm, its upper end comprising a narrow portion separated from the body of the latch
  • VIRGIL H PRUITT. LEWIS A. MEDLAR;

Description

Patented Dec. 25, 1951 I ;UNlTEDi f STATES PATENT orrl-cs Medlar, Oreland, 'Pa.; said Medlar 'assignor to Fox Products Company, Philadelphia, Pa.,- a
corporation -Claims.
7 This invention-relates to a watering device and morefparticularly to an automatic valve for use with a type of watering trough in which one end of thetrough rests on the ground or any other suitable support, and in-which the opposite end filling operation.
An important object of the present invention isgto devise an improved construction and arrangemento'f gravity 'latch,in which, instead of beingsuspended from its upper end, as in said Pruitt patent, the latch is supported at its lower end, so that it falls away out of engagement by gravity when released.
Another object is to provide an improved valve including a novel arrangement of parts in which individual standard componentparts are utilized whereby the advantages of mass production methods and automatic machines can be used in the manufacture and assembly of the valve.
Still another object of the'invention is to provide anovel and improved valve in which the individual componentsw of the valve mechanism are physically independent so that they are free to movein the valve chambers in such a way that the tendency of the valve, to become clogged is reduced to a minimum, and so-that they may be readily dis-assembled for cleaning.
Otherand further objects will become readily apparent from the following description when considered in connection with the'accompanying drawings, illustrating an embodimentjof the. invention, and in which:
Figure 1 is an elevational viewfof a watering device'using a valve made in accordance with the present invention;
Figure 2 is a sectional elevational view of the automatic valve showingfth'e, valvesfheld in the open jpositionfb'y'the gravity latch;
' Figure 3 is an elevational' view of the valve showing the latch inithe inoperative position;
Application Augu t 20, 194s,'s Y
' 2 'Figure 5 is an enlarged partial sectional elevation of the valve parts; and
Figure 6 is a horizontal sectional view on line 6 6 of Figure 5.
Referring to the drawings wherein similar reference characters designate similar parts throughout the several views, the invention is shown as applied to a chicken watering trough of the type in which one end rests on the ground or is pivotally'attached to a suitable support, and the opposite end is suspended by'a suitable Wire or chaingto an arm on the control mechanism of the automatic valve for controlling the level of the water in the trough, As the water is taken from the trough, the reduction in weight permits the valve to open partially to permit additional water to flow into the trough. The
increase in weight of the water in the trough then again closes the valve. The'valve assembly comprises fundamentally a structure having two orifices in series with valves for controlling each of the orifices in which one valve isno'rmally adapted to be closed under the influence of the pressure of the water source, and the other valve is adapted to be closed in the opposite direction by the valve control mechanism and against the pressure of the water source. The valve assembly H] is operably associated between a suitable water supply pipe I I and the watering receptacle or trough l2. The lower end of the valve casing is so arranged as to direct the water into the watering trough l2 With'a minimum of splashing. The end of the water trough adjacent the valve assembly In is suspended by a suitable wire or bail i l from a valve actuating arm H, the opposite end of the trough l2 being pivotally supported at H) by bracket on a suitable support 6.
The valve assembly Ill comprises a valve housing I8 having what in effect is a two-way valve arrangement by which communication through the housing is shut off when the two-way valve is in either of two extreme positions; both of the valves being open at an intermediate position for a purpose which will be more readily apparent as this description proceeds. The valve housing I8 is provided with't'wo aligned bores or passageways, I9 and 2il'extending inwardly from the opposite ends'of the valve housing. The two .bores are separated by a partition or solid portion 2|, the opposite side's of which are providediwithj annular valve seats 22 and 23.] The two valve seats being at the opposite sides of the partition zl in effect constitute two orifices in series in the valve housing; The valves,"pe'r s'e, are in'the form of i suitable resilient gaskets 24 and26. Adjacent each of the outer sides of the gaskets are suitable identical rigid blocks or Weights 21 and 28 which are more clearly shown in Figure 5. As shown in the latter figure, these weights or blocks are polygonal in shape and extend in an axial direction a suflicient amount so that they will not cant and become lodged in the respective bores l9 and 20. The blocks 21 and 28 are of such size as to have a loose fit inside of the valve housing,
and by reason of their polygonal shape sufficient area is provided between the blocks and the bores or passageways l9 and to provide the desired rate of flow of water when both of the valves are open. In other words, the blocks have axially extending guiding edges at the corners of the polygon loosely engaging theinside of the passageways, and the portions of the blocks between such edges are spaced sufficiently from the walls of the passageways to permit the desired flow v of water. 7 An independent valve stem 29 is disposed within the restricted bore of the partition or solid portion 2| and engages the opposed adjacent faces of the gaskets Hand; 25. The valve: stem is smaller than the bore 25 so as to provide a fluid passage between thetwo orifices. Also the valve stem 29 is longer than the distance between the outer surfaces of the valve seats 22 and 23 so that when one valve member is against its associated seat the other valve member will between the inner walls of'the bores of the valve casing and the different parts of the valve, such asthe blocks,- the valve gaskets, and the intervening valve stem. Preferably all of the parts are physically independent of each other to facilitate assembly and to permit relative movemerit therebetween and'are free to move in the valve casing which'tendsto prevent the formation of mineral deposits and to break loose or dislodge any foreign particles which may collect or'i the valve seats or in the connecting bore. R
Particularly, the valve stem 25 prevents the bore of the partition 21, which is the smallest'o'p'e'ningijn the valve housing, from becoming clogged. Also, since the valve gaskets are free to move from side to sideof the valve casing, there is less tendency for the mineral deposits to become encrusted on the surfaces of the valve gaskets which come in contact with the valve seats.
Although the exact relation between the size oftheblooks, the valvegaskets and the bore 25 of the partition is not extremely critical, there are'certain relative limits for the best practical operation. It will be noted from the drawing that 'thebor'es l9 and 20 are preferably of; the same diameter. It has been found that the area between the inside of the bores and the hexagonal blocks provides sufficient clearance'to permit thenecessary flow of water." It will be apparent that} the diameter of the valve disks'must be small enough to permit the water to new around them but in no event should these valves be less than the combined sum of the radius of'one of the bores T91 201, plus the radius of the bore 25.
It will be obvious that. the diameter of thesevalve'ga'skets must be such that'when the valve -by the inner edge of the end of the supply pipe II. The threads in the upper end of the valve casing l8 are so designed that the supply pipe i l screwslin the proper distance so that the valve 24 and the weight 21 cannot move far enough away from the valve seat 22 to permit the valve 24 becominglodged in the passageway 20 nor to permit, the valve stem 29 coming out of the bore 25.
The mass of the weights 2'! and 28 is not critical but preferably is of such value as to reduce chattering of the upper valve 24. The primary purpose of these weights or blocks is to serve as backing members for the valve gaskets 2' 4 and 26 and also as spacers; They are preferably made from standard fabrication metal stock in order to reduce cost.
7 As previously mentioned,- suitable locking means are provided forholding the valves in an intermediateposition to permit the water to flow into" the trough, the locking meansbeingfresponsive togravity to revert to the-inoperative locking position after sufficient water has flowed into the. trough to lower the operating lever. H. To. this end a suitable bracket 31 is suitably secured to the valve housing l8 by means for example, of screws 32. Bracket 3! is provided with an ear 33 to which the valve operating lever ll is pivotal-ly'connected by means of a suitable headed rivet 34. The inner end of the valve operating lever I1 is notched at Fla and the lever terminates in a head Ilb which engages the lower weight'28 The bracket 3] is also provided with ahorizontal arm 3'Bwhich extends atright angles to the part of the bracket which is attached to thevalve housing IS; A suitable biasing'spring 3'l,'the lower erid of which ishookdin a hole 38- in the valve operating lever IT, is adjustably anchored to" the bracketarm 3 6 by 'meanstf a bolt 39am; a thumb nut-4o. 3
It will be noted froni the above description andby referring. to the drawings, that the mechanism for operating the valves is carried. entirely by the bracket 3| which "is're ovamy supp rted 7 ori the valve assembly In by means of the screws 32 Accordingly, when, as is occasionally necessary,.it is desired to clean thevalve; the bracket 3'! and'valv'e controlling mechanism can be completely removed from'the valve assembly and the lower valveand thevalve stem 29 can be co'r'm pletely removed. from the valve assembly. Also, it will be readily understood that when the valve operating mechanism is removed, the valve'24 will close to shut off the wat'er. This construction constitutes a great improvement in valves of this t e. v
v The tension on the springft'i' can be varied by adjusting the position Of thenut 40, the tension on the spring controlling the level of the Wati to be maintained in the trough "l2, as will be apparent from the subsequent description. Since the valve assembly is'usually mounted in the vertical position as shown, it will be understood that under the influence" 6f gravity the pressure of the water and the tension of thespring v31 (assuming "the trough is'empty) the up!) valve atrzogsea 2'5 gasket: 24xwill close the: upper orifice. It 'will also be-seen from the drawings and the fore.- going description that downward movement. of the outer, end of the valve operating lever [1 will cause both of the valves to be moved upward in unison, thereby moving the upper valve 24 from itsseat and-moving the lower: valve 24 toward its associated seat. Therefore, when suflicient .water. accumulates in the trough to overcome the influence of thewater pressure on valve 24 and the tension spring 31, .the lower'valve 26:will be closed against its associated orifice. Also, it will be. seen that if the weight is taken oif of the arm H, the spring 31 will move the outer endof the arm llupwardly so that the valve 24 will close under the influence of the water pressure. ..By
adjusting the tension on the spring 31, a suitable biasing force is applied to the lever arm IT to oppose the weight of the trough and the water therein so that the level of the water in the trough. atv which the valve closes can be regulated.:.
When it is desired to clean the trough l2 it is usually necessary to remove the weight of the water and trough from the valve control lever arm I1. It will be apparent from the above description that when this is done the valve 24 will immediately close under the influence of the water pressure. As above stated, the clean empty trough, when the empty trough is hung on the arm l1 will not be of sufficient weight to open the valve 24 to fill the trough. For this reason the present invention provides a novel gravity latch mechanism'45 which can be used to temporarily lock the lever l1 in an intermedi ate position whereby both the valves 24 and 26 are in open position to permit the water to flow.
into the trough I2. The latch is so arranged that as soon as the weight of the water in the trough becomes suflicient tolower the outer end of the valve operating arm l1, against the tensionof'spring 31, the gravity latch will automaticallyfall to a position so that it can no longer prevent the, valve 24 from closing. To this end this gravity latch comprises a. latch member 41 which is supported on and loosely pivoted at 48 tothe valve operating arm I1. The upper extremity 41a of the latch member 41 is made parrow .bynotches 41b and 410. It will be noted that the notch 41b continues a greater distance from the upper end than does the notch 410. The upper end of this latch 41 extends through a rectangular opening 49 in thebracket arm 36; the length of the opening 49 being less than the width of the main bodyof the'latch member 41 sothat the shoulder 41d limits the upward movement of the member 41 through-the opening 491 The position of the shoulder 41d on the member 4 1 serves.as a stop to-prevent the spring 31 from raising the outer end of the arm l1 too high. The shoulder 41e is so positioned on the member 41 that when it engages the underside of the bracket arm 36, the valve operating lever arm l1 will be in such a position asto place the valves 24 and 26 in their intermediate open positions so that the water can flow into the watering-trough. It is very important to note that theopening 49 in the arm 36 is displaced laterally-with respect to the pivotal connection 48 between the valve operating lever arm l1 andthe latch 41 sothat thecenter of gravity of the'latch member-41 will always be to one side of the pivotal connection 48 when the valve is mounted in the vertical position as shown in the drawings. This isimportant so thatwhen thenotch 41a becomes disengaged fromv the underside of the bracket arm 35, the upper end of the latch member 41 as shown in the drawings will move by gravity laterally tofthe left so that. the shoulder 41c will clearthe right-hand edgeof the opening'49. This puts the latch member 41 in the inoperative locking position so that in the event the weightof the water in the trough should be removed from the arm [1, the valve 24 will. be closed to cut off the flow of water. It willbe apparent that the gravity latch can be very readily reset by merely pushing down on the valve operating lever [1 while at the same time pushing the upper end of the latchmember 41 to the right as shown in the drawings so. that the shoulderi41e engages the underside of the bracket arm 36. a When the gravity latch is released and moves to its inoperative position, the valve actuating lever arm H is free to move up and'down under the influence of the varying weight of the water in the trough l2 and the tension of the spring '31. The gravity latch will usually. be set in the locked position after the cleaning ofthe' trough when the trough will be empty and it will hold the valve open temporarily to permit sufficient water to flow into the trough to operate the latch device. The gravity latch made in accordance with the present invention is a very important feature,
- instead of relying ongravity, a suitable spring .(not shown) could be provided for resiliently urging the latch member 41 in a counterclockwisedirection about the pivotal connection- 48 as viewed in Figures 2 and 3. With such a construction, when th arm !1 is moved downwardly so that the shoulder Me of the latch member 41 is disengaged from the underside of the bracket 36, the upper end of the latch member 41 would move to the left and become inoperative thereafter when the arm I1 is again moved upwardly. Although'the invention has been described in considerable detail, it will be apparent to those skilled in the art that many variations are possib e without departing from the inventive concept. It is therefore desired that the invention not be limited except insofar as is made necessary by the. prior art and by the appended claims.
We claim:
1. A valve of the type described, comprising a casing, a plurality of. aligned'boresextending inwardly from the opposite ends of said casing, a restricted partition in said casing between said bores and having an opening therethrough forming a communication between said bores, valve seats on the opposite sides of said partition around said opening thereby constituting valve orificesand seats, a valve member associated with each of said orifices, an independent valve stem of greater length than said partition extending through the opening in said partition and operably associated between said valve members whereby the latter are caused to move in unison under certain conditions in such relation that when one valve is in closed position the otherwill be in open position, a valve control arm pivotally connected to said housing, one end of said arm being operably associated with one of said valves for positivemovement thereof, and latch means pivotally intercoupled with said arm and adapted to be manually moved into frictional engagement with abutment means on said casing when said arm is in an unloaded condition to maintain the arm in valve opening position, said latch means being oriented relative to thepivotal coupling with'said' arm to be great as. oneehalt the sum of the diameter of the. borezof. said casing and the diameter. of the bore of said restricted partition.-
4: A valve of the type described,.comprising a casing; a plural-ityof aligned bores, extending in wardly from theroppo'siteends. of said. casing, a partition in said casing betweensaid home and having a .restricted'opening therethrough forming a communication between said. bores; valve seatson. the opposite sides of said partition around said opening, thereby constituting valve orifices and seats, a valve member associated with each of sai'dorifices, an independentvalve stem of greater length than said partitionextending through the opening in. saidpartition and operably. associated between said valve members whereby the latterare caused to move in unison under certain conditions in. such relation that when one valve is in closed position the other will be in open position, a bracket at tached to said valve casing, said bracket having a. laterally extending arm and a laterally extending, ear, a'valve control arm pivotally connested to. said ear and having oneend thereof opera-hly engaging one of said valves for moving' the latter to closed position, means for resiliently biasing said. arm for movement in the opposite direction, a latch member freely piv' ote'dto said control arm, said latch member adapted to selectively engage said laterally extending bracket. arm to hold said valve control arm in an intermediate position and maintaining both of saidvalves open simultaneously.
5. A valve of the type'described, comprising-a casing-a plurality of aligned bores,,extending. inwardly from the opposite ends of said casing, a partition in said casing between saidbores and having arestricted openingtherethrough forming a communication betweensaid bores, valve seats on the oppositesides of said partition around said opening thereby constituting valve orifices and seats, a valve member associated" with each of said orifices, an independent valve stem of greater length than said pz'irti'tionextending through the opening in'said partition and operably' associated between said valve mambers whereby the latter are caused to move in unison under certain'conditions in such relation that when one valve is 'in closed position the other will be in open position, a bracket at-. tached to said valve casing, said' bracket having a laterally extending arm and a laterally "ex-- tending ear, a valve controlarm. pivotally cone nected to'said ear and having one end thereofoperablvengagingi one of saidvalves for moving the latter to closed position, means for resiliently biasing said arm. for movement in .the. opposite direction, a latch memberfreely pivoted to said control arm at a point on'the opposite side of the pivotal connection with said ear, said. latch member adapted to selectively engage said laterally extending bracket arm to hold said valve control arm. in. an intermediate; .positionr and 8 maintainabothxot. said valvesopen. simultaneous: lyiu'ntiljsaidi. control. arm is loaded: to apredetermined condition; an combinationas set forth in claim' 4 in which said bracket-is,.detachably secured to said valve casingwherebysaid bracket and. valvercontrolmechanism can: be bodily. removed. as a .unit
comprising a; valve housing havingv aligned .pas-
sageways: extending inwardly from the" opposite ends thereof, and a solid portion betweensald passagewaysjhaving a restricted b'ore forming-a communicationbeiaveen saidpassageways, valve seats formed on said solid portion at the opposite ends of and surrounding said bore, a valve mam-'- bersubstanti-allysmaller than. said passageways associated. with each-oftsai'd seats, a separate, rigid block arranged to bear upon each valve member, said blocksbeing shiftable longitudinally' of saidpassa'geways andihaving a plurality of axially extending guiding edges'loosely engagingtherinside;thereof,..and the portions of said blocksbetweensaid edges being spacedsufiicientl-y from the: walls ofthe passageways to-permit the desired flowfofwatr, said valve members being freely movable: laterally, independentlyof said blocks, with. respect. to. said seats, an independent valve stem of a length greater than that of said solid :portion extending throughsaid bore and operativelyi associated between said valve members whereby the latter. are caused to move illlllHiSOIl under certain conditions in such relationthat when one valve member is in closed position, the. other will be" in open position, said valve-stembeing: of substantially smaller diameter. than said bore, so as to provide a fluid passage' between itself and the walls of "the bore, a valve control arm pivotally connectedto said housing, one end-of said arm being operatively associated with one of said blocks for positively movingsaid block's, valve members and stem when swung in one direction, on its pivot, means biasing. said arm in the other direction, and a manually set latch operatively associated with said am for temporarily lockingthe same against the force of' said: biasing meanslwith both valve members in open position, said latch being constructed to automatically return to inoperative position when said arm ismoved further against-the 'force of said biasing means.
QJA valve mechanism of the "type described comprising a vaive housing having aligned passageways, circular in cross} section extending axially inward'fro'rn the bp'pos'ite ends' thereof, and asolid portion between said passageways having a'res'trictedjbore forming a communication' between: said passageways, valve seats formed on said'solid portionat the opposite ends stand I surrounding said bore, a valve member of substantially smaller diameter than said passageway's'associated with'each of said -seats, a separate rigid polygonal block arranged to bear upon each valve member and freely .movablesin respective passageways, said. blocks being of sumcien-t length axially to prevent canting:
and binding, in said passageways, an independent valve stem ofa length greater than-that of "said solid portion -,;extending through said ,bore and operatively associated between said valve members, whereby the latter are caused to move in unison under certain conditions, in such relation that when one valve member is in closed position, the other will be in open position, said valve stem being of substantially smaller diameter than said bore to afford a fluid passage between itself and the walls of the bore, a valve control arm pivotally connected to said housing and having its end shaped to project into one of said passageways and engage the polygonal block therein, whereby when swung on its pivot in one direction said arm serves to positively move both valve members, and means biasing said arm in the other direction.
10. A valve mechanism of the type described comprising an elongated valve housing adapted to be positioned vertically and having a fluid passageway extending therethrough, a pair of valve seats in said passageway, valve means cooperating with said seats to control the flow of fiuid through said passageway, a valve control arm pivotally mounted on said housing and extending generally horizontally therefrom, one end of said arm being operatively connected with said valve means for positively moving the same when swung on its pivot in one direction, means biasing said arm in the other direction, said arm being movable to either one of two extreme positions in which said valve means serves to shut off the flow of fluid through said passageway, and to an intermediate position in which said valve means permits the flow of fluid, a second arm fixed to said housing and projecting therefrom substantially parallel with and above said control arm, and a latch member for temporarily locking said control arm in said intermediate position against the force of said biasing means, said latch member being freely supported at its lower end on said valve control arm, its upper end comprising a narrow portion separated from the body of the latch member by a shoulder, said fixed arm having a rectangular opening of a length greater than the width of the said latch member below said shoulder, through which opening said latch member extends, whereby said shoulder may engage the end of said opening in said fixed arm, and is held in engagement therewith by the force of said biasing means, said opening being located to one side of the point of support of said latch member, so that said latch member occupies an inclined position when engaged, and is automatically movable laterally by gravity out of locking engagement with said second arm when said valve control arm is moved against the force of said biasing means from the position in which it was locked.
VIRGIL H. PRUITT. LEWIS A. MEDLAR;
REFERENCES CITED The following references are of record. in the file of this patent:
UNITED STATES PATENTS Number Name Date 612,947 Kiernan Oct. 25, 1898 1,055,673 Smedberg Mar. 11, 1913 1,078,875 Pyle Nov. 18, 1913 1,201,164 Ferguson Oct. 10, 1916 1,415,178 Imschweiler May 9, 1922 1,606,191 Siebenmann Nov. 9, 1926 1,653,525 White Dec. 20, 1927 2,200,830 Beharrell May 14, 1940 2,333,060 Turner Oct. 26, 1943 2,410,105 Remus Oct. 29, 1946 2,512,839 Pruitt June 27, 1950
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3046763A (en) * 1952-04-02 1962-07-31 Scott & Williams Inc Multi-feed circular knitting machine
US3090609A (en) * 1960-06-03 1963-05-21 Fox Prod Co Automatic valves

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US612947A (en) * 1898-10-25 Water-faucet
US1055673A (en) * 1910-11-10 1913-03-11 Oscar L Smedberg Valve.
US1078875A (en) * 1912-06-18 1913-11-18 Adrian R Pyle Gas-cock.
US1201164A (en) * 1909-10-25 1916-10-10 George Jones Ferguson Valve.
US1415178A (en) * 1920-03-04 1922-05-09 Imschweiler John Automatic valve for chicken fountains and the like
US1606191A (en) * 1925-03-31 1926-11-09 Siebenmann Daniel Quick-acting valve, particularly adapted for liquefied gases
US1653525A (en) * 1924-10-11 1927-12-20 Oliver C White Automatic drinking fountain
US2200830A (en) * 1938-04-01 1940-05-14 Dunlop Rubber Co Control valve for hydraulic systems and apparatus
US2333060A (en) * 1942-03-25 1943-10-26 Morris B Brewster Co Control mechanism for locomotive sanders
US2410105A (en) * 1939-04-29 1946-10-29 Remus Valentin Valve
US2512839A (en) * 1946-10-22 1950-06-27 Virgil H Pruitt Watering device

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US612947A (en) * 1898-10-25 Water-faucet
US1201164A (en) * 1909-10-25 1916-10-10 George Jones Ferguson Valve.
US1055673A (en) * 1910-11-10 1913-03-11 Oscar L Smedberg Valve.
US1078875A (en) * 1912-06-18 1913-11-18 Adrian R Pyle Gas-cock.
US1415178A (en) * 1920-03-04 1922-05-09 Imschweiler John Automatic valve for chicken fountains and the like
US1653525A (en) * 1924-10-11 1927-12-20 Oliver C White Automatic drinking fountain
US1606191A (en) * 1925-03-31 1926-11-09 Siebenmann Daniel Quick-acting valve, particularly adapted for liquefied gases
US2200830A (en) * 1938-04-01 1940-05-14 Dunlop Rubber Co Control valve for hydraulic systems and apparatus
US2410105A (en) * 1939-04-29 1946-10-29 Remus Valentin Valve
US2333060A (en) * 1942-03-25 1943-10-26 Morris B Brewster Co Control mechanism for locomotive sanders
US2512839A (en) * 1946-10-22 1950-06-27 Virgil H Pruitt Watering device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3046763A (en) * 1952-04-02 1962-07-31 Scott & Williams Inc Multi-feed circular knitting machine
US3090609A (en) * 1960-06-03 1963-05-21 Fox Prod Co Automatic valves

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