US1449166A - Double-beat valve - Google Patents

Double-beat valve Download PDF

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Publication number
US1449166A
US1449166A US50014521A US1449166A US 1449166 A US1449166 A US 1449166A US 50014521 A US50014521 A US 50014521A US 1449166 A US1449166 A US 1449166A
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United States
Prior art keywords
valve
casing
double
seat
spindle
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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Cockburn David
Macnicoll Donald
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Individual
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Individual
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Application filed by Individual filed Critical Individual
Priority to US50014521 priority Critical patent/US1449166A/en
Application granted granted Critical
Publication of US1449166A publication Critical patent/US1449166A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86718—Dividing into parallel flow paths with recombining
    • Y10T137/86759—Reciprocating
    • Y10T137/86767—Spool
    • Y10T137/86783—Unequal heads

Definitions

  • This invention relates to double beat valves of thetype equipped with a flexible diaphragm for permitting both valve elements to seat notwithstanding differences in expansion between the valve proper and the valve casing.
  • Valves of this type as constructed heretofore are associated with a diaphragm fitted to one of the valve elements.
  • the present invention consists broadly in a double beat valve in which the flexible diaphragm is interposed between the valve casing and the bottom valve seat so that said valve seat is capable of slight movement relatively to the valve casing.
  • a secondary feature consists in the provi-- sion of means for holding said seat rigidly in position when the operative face is to be ground in, such means comprising a spaced series of pinching screws fitted to the bottom cover of the valve and adjustable to force the valve seat into a position such that a rigid shoulder thereon engages a corresponding shoulder on the valve casing.
  • a further feature consists in the fitment on the valve spindle of a protective curtain which surrounds the spindle surface passing through the stufiing box and thereby prevents the flow of superheated steam on.
  • Fig. 1 is a fragmentary section of a valve and Fig. 2 a detail sectional view drawn to a larger scale.
  • the double beat valve shown is provided with a flexible diaphragm 1 interposed between the valve casing 2 and the bottom valve seat 3 so that the valve seat 3 is capable of slight movement relatively to the valve casing 52.
  • the outer marginal edge of the diaphragm 1 is nipped between the valve casing 2 and a junk ring ,4. and the inner marglnal edge is nipped between a nut 5 and a collar 6 on the seat 53.
  • the complemental faces of the collar (3 and the junk ring f being shaped to permit the requisite flexure of the diaphragm.
  • the nut 5 is held against rotation by locking screws 7.
  • a spaced series of pinching screws 9 which are adjustable into engagement with the lower edge of the valve seat 3 to force the valve seat 3 into a position such that a rigid shoulder 10 on the collar 6 engages a corresponding shoulder 11 on the valve casing.
  • a pro tective curtain 13 surrounding the spindle surface which passes through the stuffin box 14.
  • the curtain 13 arrests the flow of superheated steam towards the spindle surface and prevents the formation of a hard deposit thereon.
  • said lower seat In combination with a valve casing resenting a shoulder, upper and lower valve seats, said lower seat also presenting a shoulder, a doubel beat valve for said seats, a diaphragm interposed between said casing and said. lower valve seat, permitting normally slight movement of said lower valve seat relatively to said casing a bottom cover, and a spaced series of pinching screws fitted to said cover and adjustable to force said lower seat into a position with said shoul ders in engagement with one another.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Valves (AREA)
  • Mechanically-Actuated Valves (AREA)

Description

Man". 2%), 11923.
D. COCKBURN ET AL DOUBLE BEAT VALVE Filed Sept. l2, 1921 Patented Mar, 2th, 1923.,
UNETEE) DAVID GOCKBURN AND DONALD MACNICOLL, OF CAB/DONALD, NEAR GLASGOW, SCOTLAND.
DOUBLE-BEAT VALVE.
Application filed September 12, 1921. Serial No. 500,145.
T all whom it may concern:
Be it known that we, DAVID CooKnUnN and DONALD MAoNIooLL, subjects of the King of the United Kingdom of Great Britain and Ireland, and residing at Clydesdale Engineering Works, Cardonald, near Glas gow, Scotland, have invented a certain new and useful Improvement in Double-Beat Valves, of which the following is a specification.
This invention relates to double beat valves of thetype equipped with a flexible diaphragm for permitting both valve elements to seat notwithstanding differences in expansion between the valve proper and the valve casing.
Valves of this type as constructed heretofore are associated with a diaphragm fitted to one of the valve elements. I
The present invention consists broadly in a double beat valve in which the flexible diaphragm is interposed between the valve casing and the bottom valve seat so that said valve seat is capable of slight movement relatively to the valve casing.
A secondary feature consists in the provi-- sion of means for holding said seat rigidly in position when the operative face is to be ground in, such means comprising a spaced series of pinching screws fitted to the bottom cover of the valve and adjustable to force the valve seat into a position such that a rigid shoulder thereon engages a corresponding shoulder on the valve casing.
Yet a further feature consists in the fitment on the valve spindle of a protective curtain which surrounds the spindle surface passing through the stufiing box and thereby prevents the flow of superheated steam on. to
said surface.
The invention is illustrated in the accompanying drawing in which Fig. 1 is a fragmentary section of a valve and Fig. 2 a detail sectional view drawn to a larger scale.
The double beat valve shown is provided with a flexible diaphragm 1 interposed between the valve casing 2 and the bottom valve seat 3 so that the valve seat 3 is capable of slight movement relatively to the valve casing 52. The outer marginal edge of the diaphragm 1 is nipped between the valve casing 2 and a junk ring ,4. and the inner marglnal edge is nipped between a nut 5 and a collar 6 on the seat 53. the complemental faces of the collar (3 and the junk ring f being shaped to permit the requisite flexure of the diaphragm. The nut 5 is held against rotation by locking screws 7.
For holding the seat 3 rigidly in. position. when the operative face is to be ground in there is fitted to the bottom cover 8 a spaced series of pinching screws 9 which are adjustable into engagement with the lower edge of the valve seat 3 to force the valve seat 3 into a position such that a rigid shoulder 10 on the collar 6 engages a corresponding shoulder 11 on the valve casing.
Fitted on the valve spindle 12 is a pro tective curtain 13 surrounding the spindle surface which passes through the stuffin box 14. The curtain 13 arrests the flow of superheated steam towards the spindle surface and prevents the formation of a hard deposit thereon.
We claim 1. In combination with a valve casing having upper and lower valve seats, a double beat valve for said seats. and a diaphragm interposed between said casing and said lower valve seat, permitting slight movement of said lower valve seat relatively to said casing.
2. In combination with a valve casing resenting a shoulder, upper and lower valve seats, said lower seat also presenting a shoulder, a doubel beat valve for said seats, a diaphragm interposed between said casing and said. lower valve seat, permitting normally slight movement of said lower valve seat relatively to said casing a bottom cover, and a spaced series of pinching screws fitted to said cover and adjustable to force said lower seat into a position with said shoul ders in engagement with one another.
3. In combination with a valve casing having upper and lower valve seats, a valve spindle, a double beat valve on said spindle, a stuffing box for said spindle, a diaphragm interposed between said casing and said lower valve seat, permitting slight movement of said lower valve seat relatively to said casing, and a protective curtain fitted to said spindle surrounding the spindle suriace which passes @through vsaid stnfling In testimony whereof we have signed our DAVID COCKBURN. DONALD MAONICOLL.
Witnesses KATE FOTHERINGHAM, ISABEL RoLLo.
US50014521 1921-09-12 1921-09-12 Double-beat valve Expired - Lifetime US1449166A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US50014521 US1449166A (en) 1921-09-12 1921-09-12 Double-beat valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US50014521 US1449166A (en) 1921-09-12 1921-09-12 Double-beat valve

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US1449166A true US1449166A (en) 1923-03-20

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US50014521 Expired - Lifetime US1449166A (en) 1921-09-12 1921-09-12 Double-beat valve

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2614725A (en) * 1952-10-21 Pressure cooker and the like
US20090272924A1 (en) * 2008-05-01 2009-11-05 Honeywell International Inc. Self-aligning poppet valve assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2614725A (en) * 1952-10-21 Pressure cooker and the like
US20090272924A1 (en) * 2008-05-01 2009-11-05 Honeywell International Inc. Self-aligning poppet valve assembly

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