US1733528A - Stop-cocking valve - Google Patents

Stop-cocking valve Download PDF

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Publication number
US1733528A
US1733528A US742313A US74231324A US1733528A US 1733528 A US1733528 A US 1733528A US 742313 A US742313 A US 742313A US 74231324 A US74231324 A US 74231324A US 1733528 A US1733528 A US 1733528A
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United States
Prior art keywords
valve
pressure
stop
plunger
spring
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Expired - Lifetime
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US742313A
Inventor
George C Davis
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G M DAVIS REGULATOR Co
Gm Davis Regulator Co
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G M DAVIS REGULATOR Co
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Priority to US742313A priority Critical patent/US1733528A/en
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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/14—Control of fluid pressure with auxiliary non-electric power
    • G05D16/18—Control of fluid pressure with auxiliary non-electric power derived from an external source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/44—Details of seats or valve members of double-seat valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/042—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with locking or disconnecting arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/0433—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with vibration preventing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/044—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with more than one spring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/06—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/48—Mechanical actuating means actuated by mechanical timing-device, e.g. with dash-pot
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • Y10T137/7835—Valve seating in direction of flow

Definitions

  • My invention relates to improvements in stop cocking valves for usein connection with stop cocking or automatic self pumping oil wells and the like and it has for one object to provide a new and improved form of stop cocking valve which can be set automatically to open when the pressure in the well reaches a predetermined point 'and to close when the pressure drops to a predetermined point.
  • valve as this is used'in connection with oil wells where the pressure is" not suflicient to cause the well to flow at all times but where the pressure it entrained will gradually build up to a point at which sudden release will permit the pressure to blow out some of the oil, and, my valve is intendedto automatically open and close so that when the presure has built up to a point at which it will discharge oil from the well, the valve suddenly opens and the gas rushes out entraining with it oil, this continuing until the pressure, drops to a point at which the gas can no longer discharge theoil,
  • This condition can be. produced I n wells without gas pressure by introducing air under pressure into the casing at a relatively low rate and allowing the air pressure to build up, then I opening the valve automatically in the same way and allowing the air pressure to. eyect the oil.
  • the air pressurepipe be small enough so that during the time when the discharge valve is open to permit flow of oil, there will not be an unreasonable windage of the air, as it is most satisfactory to leave the, air pressure opening open at all times.
  • Other'objects will appear from time to time in the spec ficatmn and claims.
  • A is a valvehousing. Into it leadsan intake plpe A From it leads a discharge pipe A A is the intake side" of the valve and*A* the discharge side. These sides are separated by a closureorpartition A, having two opposed valve seatrings A A. threaded in place and forming the valve ports. A A 'are valve discs joined by the central stem A and pros vided With guide fingers A adapted to center the discs in the seatswhile permitting free flow when the valves are open. A is i a yoke associated with oneof thediscs A;
  • a dumbbell shaped connecting rod free to move through predetermined limits with respecttoa yoke B
  • This yoke B is pivoted on a hub B and a coil spring B passes through the dumb-bell shaped connecting rod B and engages the top of one ofthe valve discs A at one endand the hub B at the otherend and is held under pressure to hold the'parts yieldingly to prevent chattering and the like.
  • B is a dash pot piston slidable in thecylinder B which projects outwardly from the housing
  • This dash I i pot piston is provided with a packing ring B held in place bythe washer B and the hub B tween the inner wall of thelplunger and the g outer periphery of the flange.
  • B is oil or suitable liquid materialheld within the cylinder and adapted to be expelled from between the plunger and the collar or flange B when ing from the 'topof the'cylinder B immediately below.
  • the cap B to a discharge pipe B surrounded by a housing B, there being air holes B 5 leading out from the housing.
  • a B is a passage leadcylinder serves as a reservoir for the ejected i oil when the plunger moves up and'is ar ranged to permit theoil to drain back gradg I ually when the plunger moves down.
  • dumb-belL shaped connecting rod 33 The clearancebetween the port end of the dumb-belL shaped connecting rod 33 and the yolre'B permits this upward movement'of the plunger to free the latch when unseati-ng thevalve;anditwill bev noted that the dumb-bell; shaped connecting rod is long enough so that evenif the latch or trigger has been free',the valve isnot; unseated until the plungeris on: itsupward' movement, thus adding the hammer blow of the moving parts of the plunger to the pressure thereof to: positively unseat the valve.
  • Eisa yoke projecting upwardly from the cylinder B carrying a. spring, housing E
  • the trigger is-released and: the valve stem,.plunger;and valve travel up the spring 1 E -is compressed;
  • the pressure and inertia of the parts is suflicient to move the? valve stem up: until the ball stop 0 engages.
  • the notch G yieldingly locking the valve and as;- sociated parts in the upward position with the spring E compressed.
  • the compressionv of the spring E is, not suflicient when the valve first opens to overcome.
  • the relaitself drops beyond a certain point, the low pressure spring which was not strong enough to overcomeboth the gas pressure and the latch pressure will be strong enough to overcome the latch pressure and will. torce the valve and its associated parts suddenlydown, the inertia being suflicient to overcome; the final pressure and seat the valve, thus making both opening and closing positive and sudden.
  • the sear collar engages the surface of the trigger, forces in the spring to permit passage down ward of the sear.
  • a stop cocking valve for oil wells. and thelike comprising a valve housing, a valve member therein, a. control plunger exposed on one side to the pressurein the valve hous ing, a connection between the plunger and the valve member, a yieldingly held stop for resisting the movement of the plunger and holding the valve member seated, tlieyie'lding stop holding meansbeingadapted'to permit the stop to release th'epl'unger when the pressure on the plunger reaches a predetermined point, the connection between the plunger and the valve member beingloose to permit movement of the plunger and release of the stop before the valve member isili'fted, yielding means interposed. between the plunger and valve member. tending to hold themin separated position.
  • a valve for stop cooking oil Wells and the like comprising a housing, valve seat, a
  • valve in opposition to said seat, a valve stem projecting outwardly through the housing, yielding means operating upon the valve stem tending to hold the valve in the seated position, a pivoted latch engaging the, projection on the valve stem, yielding means for resisting rotation of the latch; said means being adapted When the pressure exerted by the valve stem exceeds a predetermined point to permit release of the stem and a connection between the valve and the valve stem whereby movement of the stem in opposition to the latch takes place Without moving the valve previous to the release of the latch.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Safety Valves (AREA)

Description

Oct. 29, 1929. G. c. DAVIS 1,733,528
STOP cocxrue VALVE Filed Oct. 8, 1924 fnve/nz or. Q60?" 6 CLDaZ/Zp' W 4- W Aztarnqys."
Patented Oct. 29, 1929 P TE T orrice 7 GEORGE CQDAVIS, or oHicAeo, runners, Assmnon r0 a. M nAvis R enLA'ron cont- PANY,
or'oHIoAGo, ILLINOIS, A CORPORATION oFI LIN'oIs s'ror-oooKmG VALVE Application filedOctober s, 1924. Serial No. 742,313.
My invention relates to improvements in stop cocking valves for usein connection with stop cocking or automatic self pumping oil wells and the like and it has for one object to provide a new and improved form of stop cocking valve which can be set automatically to open when the pressure in the well reaches a predetermined point 'and to close when the pressure drops to a predetermined point. Among the objects of myinventionis'the provision of a device whiclrwillopen and close suddenly,thus'making thechange from a condition of flow andreductionofpressure toa condition of lack of flow and building up of pressure andvice' versa; sudden and complete. It will be understoodthat such a valve as this is used'in connection with oil wells where the pressure is" not suflicient to cause the well to flow at all times but where the pressure it entrained will gradually build up to a point at which sudden release will permit the pressure to blow out some of the oil, and, my valve is intendedto automatically open and close so that when the presure has built up to a point at which it will discharge oil from the well, the valve suddenly opens and the gas rushes out entraining with it oil, this continuing until the pressure, drops to a point at which the gas can no longer discharge theoil,
when the valve automatically closes again to permit building up.
This condition can be. produced I n wells without gas pressure by introducing air under pressure into the casing at a relatively low rate and allowing the air pressure to build up, then I opening the valve automatically in the same way and allowing the air pressure to. eyect the oil. When this is done, it is necessary only that the air pressurepipe be small enough so that during the time when the discharge valve is open to permit flow of oil, there will not be an unreasonable windage of the air, as it is most satisfactory to leave the, air pressure opening open at all times. Other'objects will appear from time to time in the spec ficatmn and claims. I i My invention diagrammatically in theaccompanylng drawing's, wherei'n is illustrated more or less The figure is a longitudinal section through the valve.
Like parts are indicated by like characters I throughout. I,
A isa valvehousing. Into it leadsan intake plpe A From it leads a discharge pipe A A is the intake side" of the valve and*A* the discharge side. These sides are separated by a closureorpartition A, having two opposed valve seatrings A A. threaded in place and forming the valve ports. A A 'are valve discs joined by the central stem A and pros vided With guide fingers A adapted to center the discs in the seatswhile permitting free flow when the valves are open. A is i a yoke associated with oneof thediscs A;
Projecting upwardly fro th yo 10 a free to move laterally therein is a dumbbell shaped connecting rod free to move through predetermined limits with respecttoa yoke B This yoke B is pivoted on a hub B and a coil spring B passes through the dumb-bell shaped connecting rod B and engages the top of one ofthe valve discs A at one endand the hub B at the otherend and is held under pressure to hold the'parts yieldingly to prevent chattering and the like. B is a dash pot piston slidable in thecylinder B which projects outwardly from the housing This dash I i pot piston is provided with a packing ring B held in place bythe washer B and the hub B tween the inner wall of thelplunger and the g outer periphery of the flange. B is oil or suitable liquid materialheld within the cylinder and adapted to be expelled from between the plunger and the collar or flange B when ing from the 'topof the'cylinder B immediately below. the cap B to a discharge pipe B surrounded by a housing B, there being air holes B 5 leading out from the housing. This the plunger moves up. a B is a passage leadcylinder serves as a reservoir for the ejected i oil when the plunger moves up and'is ar ranged to permit theoil to drain back gradg I ually when the plunger moves down.
.threaded a guide pin D wardly against the stem and into engage ment with the sear by the spring C in the pivot leverC C is a stop limiting the out ward movement of'the triggerunder the urge The lever C is pivoted on the pin C on a yoke C and it is provlded of the spring C.
at its outer end with a notch C riding on a pin O D; is a'col'lar resting on the; valve housing and surrounding the cylinder B D is a lug projecting laterally: therefrom: and has pivoted thereon a socket D in which is This guide pin passes up; through a block D which carries the pins- C D limits upwardly movement of thetrunnion block vand as rin D sur- C) rounds I the pin 1B and is; introduced between the; trunnion block: and a collar D. D is a nutthreaded' on the; pin D adapted to ad just the position-10f the collar to adjust the tension of the-spring. m It will be understood that as pressure buildsup in the intake side of the valve and the plunger is moved up the lever will be rotated, compressing the spring 1) until the pressurereaches a predetermined point. at which time the spring,
will: be'sufiiciently compressed to permit the trigger to. disengage, fromthe sear, thus allowing theplunger to rise and carry Wltll' 1t the valve. The clearancebetween the port end of the dumb-belL shaped connecting rod 33 and the yolre'B permits this upward movement'of the plunger to free the latch when unseati-ng thevalve;anditwill bev noted that the dumb-bell; shaped connecting rod is long enough so that evenif the latch or trigger has been free',the valve isnot; unseated until the plungeris on: itsupward' movement, thus adding the hammer blow of the moving parts of the plunger to the pressure thereof to: positively unseat the valve.
Eisa: yoke projecting upwardly from the cylinder B carrying a. spring, housing E This housingcontains,azspring E compressed between'the' collar E on the upper end of the valve stem G and a collar E in the housing adaptedto be downwardly adjusted by means of a set screwEY When the trigger is-released and: the valve stem,.plunger;and valve travel up the spring 1 E -is compressed; The pressure and inertia of the parts is suflicient to move the? valve stem up: until the ball stop 0 engages. the notch G yieldingly locking the valve and as;- sociated parts in the upward position with the spring E compressed. The compressionv of the spring E is, not suflicient when the valve first opens to overcome. the relaitself drops beyond a certain point, the low pressure spring which was not strong enough to overcomeboth the gas pressure and the latch pressure will be strong enough to overcome the latch pressure and will. torce the valve and its associated parts suddenlydown, the inertia being suflicient to overcome; the final pressure and seat the valve, thus making both opening and closing positive and sudden. On the down movement, the sear collar engages the surface of the trigger, forces in the spring to permit passage down ward of the sear.
The pressure at which the valveopens is set by adjusting the high pressure spring D9. The pressure at which. the valve. closes is set by adjusting. the low pressure spring E 7 It will be evident that while I have shown in my drawings an operative device, still many changes might be made in. thesize, shape and disposition of parts without departing materially from the spirit of my in;- vention and I wish, therefore, that my showing be taken asinia sense diagrammatic" I claim: 7 V
l. A stop cocking valve for oil wells. and thelike comprising a valve housing, a valve member therein, a. control plunger exposed on one side to the pressurein the valve hous ing, a connection between the plunger and the valve member, a yieldingly held stop for resisting the movement of the plunger and holding the valve member seated, tlieyie'lding stop holding meansbeingadapted'to permit the stop to release th'epl'unger when the pressure on the plunger reaches a predetermined point, the connection between the plunger and the valve member beingloose to permit movement of the plunger and release of the stop before the valve member isili'fted, yielding means interposed. between the plunger and valve member. tending to hold themin separated position. h
2. The combination with a valve member and seat of avalve actuatingg'elementradapted toengage the valve. member directly to seat it, a tension member interposed. between the valve actuating element and. thevalve memher to permit the actuating, member to unseat the valve, there being play in the tension member to permit the valve actuating member to. move in the unseating direction before the valve responds to theunseating movement, a trigger release for holding the valve actuating member in the closed position, the play between the actuating member and the connection being such that there is move- A ment of the valve actuating member in the opening direction after the trigger has been released and before the valve commences to move from its seat.
3. A valve for stop cooking oil Wells and the like comprising a housing, valve seat, a
valve in opposition to said seat, a valve stem projecting outwardly through the housing, yielding means operating upon the valve stem tending to hold the valve in the seated position, a pivoted latch engaging the, projection on the valve stem, yielding means for resisting rotation of the latch; said means being adapted When the pressure exerted by the valve stem exceeds a predetermined point to permit release of the stem and a connection between the valve and the valve stem whereby movement of the stem in opposition to the latch takes place Without moving the valve previous to the release of the latch.
Signed at Chicagov county of Cook and State of Illinois, this 20th day of September,
GEORGE C. DAVIS.
US742313A 1924-10-08 1924-10-08 Stop-cocking valve Expired - Lifetime US1733528A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2499527A (en) * 1946-03-04 1950-03-07 Black Sivalls & Bryson Inc Valve
US2692612A (en) * 1950-07-14 1954-10-26 Phillips B Drane Pressure controlled flow regulator valve
US2756771A (en) * 1951-05-25 1956-07-31 Sperry Gyroscope Co Ltd Pressure-regulating valves for hydraulic systems
US3410304A (en) * 1966-01-19 1968-11-12 Herman L. Paul Jr. Relief valves
US11346450B2 (en) * 2020-01-08 2022-05-31 Automatic Switch Company Poppet valve with simultaneously contacting valve members

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2499527A (en) * 1946-03-04 1950-03-07 Black Sivalls & Bryson Inc Valve
US2692612A (en) * 1950-07-14 1954-10-26 Phillips B Drane Pressure controlled flow regulator valve
US2756771A (en) * 1951-05-25 1956-07-31 Sperry Gyroscope Co Ltd Pressure-regulating valves for hydraulic systems
US3410304A (en) * 1966-01-19 1968-11-12 Herman L. Paul Jr. Relief valves
US11346450B2 (en) * 2020-01-08 2022-05-31 Automatic Switch Company Poppet valve with simultaneously contacting valve members

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