US799723A - Reducing-valve. - Google Patents

Reducing-valve. Download PDF

Info

Publication number
US799723A
US799723A US1904229831A US799723A US 799723 A US799723 A US 799723A US 1904229831 A US1904229831 A US 1904229831A US 799723 A US799723 A US 799723A
Authority
US
United States
Prior art keywords
valve
reducing
diaphragm
pressure
heads
Prior art date
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
Application number
Inventor
John Dewrance
George Henry Wall
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US1904229831 priority Critical patent/US799723A/en
Application granted granted Critical
Publication of US799723A publication Critical patent/US799723A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D11/00—Feed-water supply not provided for in other main groups
    • 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
    • Y10T137/7793—With opening bias [e.g., pressure regulator]
    • Y10T137/7803—With protective separator
    • 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

Definitions

  • This invention relates to valves for regulating the discharge of afluid of any given initial pressure (which may be variable) in such a manner as to automatically restrict the pressure of the discharge to some predetermined reduced pressure.
  • Figures 1 and 2 illustrate a reducing-valve embodying our improvements, Fig. 1 being a vertical section and Fig. 2 a side elevation with certain parts in section.
  • Fig. 3 is a vertical section of the valve-casing on a plane at right angles to that employed in Fig. 1.
  • Fig. A is a view similar to Fig. 3, illustrating a modification hereinafter more particularly referred to.
  • the main valve A for controlling the passage of the fluid is of the equilibrium type, and consists of two diskshaped heads a (0*, arranged at a suitable distance apart and either formed integrally with the valve stem or body a or rigidly attached thereto.
  • Each head is preferably formed or provided with wings (0 which work in seatings or cut-olf rings a and serve as guides.
  • the seatings or cut-off rings a a are maintained at a suitable distance apart by means of arms a which constitute a skeleton frame.
  • the heads a (6* of the valve are larger in diameter than the bore of the seatings, so that the former take a bearing upon the faces of the latter.
  • one of the seatings a is formed as a loose ring, and one of the heads a* is secured or otherwise attached to the valve etc or body.
  • the fluid the pressure of which is to be reduced is admitted by way of openings a between the two heads a (0*, and when the valve A is open, as shown in Figs. 1 and 3, escapes in opposite directions between a (0* and their respective cut-off rings or seatings a a.
  • the valve A is connected, by means of a stem 6/, to the long arm I) of a lever B, preferably of the first order, the said stem and lever being inclosed within a casing 12.
  • the opposite or short arm 6* ofthe lever is connected, by means of a rod 0, to a flexible diaphragm C, whereof the upper side is inclosed within a casing 0, attached to the cover a of the mainvalve casing, while the lower side is supported upon a piston D.
  • This piston is carried by a nut 0 applied to the lower end of the spindle c,'the extremity of the latter resting upon a yoke d, the ends of which engage with suspending-rods d d, borne by spiral or other suitable springs d W.
  • the pressure of the springs d although capable of variation for purposes of adjustment, are normally capable of exercising a resistance equivalent to the pressure of the fluid acting on the inclosed face of the diaphragm C.
  • both the main valve A and the diaphragm C are respectively in equilibrium; but the respective movements of these two parts vary in the ratio of the lengths of the two arms 6 6* of the lever B, to which they are severally attached.
  • the movement of the valve A may be considerable, so as to afford a full-way passage for the fluid, while the movement of the diaphragm C is relatively small and admits of nearly the whole of its area being constantly borne by the springsupported piston D.
  • the initial pressure is admitted between the heads a (0* thereof, passes to the reducedpressure side, and, entering the casing Z) by way of the passage Z2 ,..surrounding the valve-stem a finds its way to the inclosed face of the diaphragm O.
  • the reduced pressure becoming so far augmented as to exceed the load on the spring-supported diaphragm the latter is de flected, with the effect that the main valve A is partially or wholly closed.
  • the chamber in which the diaphragm is mounted remains comparatively cool, its distance from the valve-chamber being such that the transmission of heat by conduction is for the most part prevented.
  • the diaphragmchamber is not liable to collect dirt or sediment. It remains charged with the water of condensation and is only exposed to the reduced as distinguished from the initial pressure of the steam. Any sudden movement of the diaphragm, and consequently of the valve, is avoid ed by reason of the diaphragmchamber being; nearly closed, thus preventing' the rapid discharge of the water of condensation.
  • a reducing-valve the combination with a main controlling-valve of the equilibrium type, having two heads of equal diameter, and cut-ofi rings whereon the heads respectively seat, of a rocking-lever connected as to one arm with the said valve and as to the other arm with a reacting diaphragm;

Landscapes

  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Fluid Pressure (AREA)

Description

No. 799,723. PATENTED SEPT. 19, 1905- DEWRANOE & G. H. WALL.
REDUCING VALVE.
APPLICATION FILED 00124. 1904.
4 SHEETS-SHEET 1.
WITNESSES. INVENTORSI 'No. 799,723. PATENTBD SEPT. 19, 1905/ J. DEWRANCB & e. H. WALL. REDUCING VALVE.
APPLICATION FILED 001..24. 1904.
4 SHEETS-SHEET 2.
. QQQQQQQ III/A WIT/V5??? //VVENTORS.'
Amiw a 0mm 00. vnovmJmuanamins. \vasmucmn. n a
N0- 799,'723. PATENTBD SEPT. 19, 1905. J. DBWRANGE & G. H. WALL. REDUCING VALVE.
APPLICATION I'ILED OCT. 24. 1904.
4 SHEETS-SHEET 3.
WITNESSES VENTORS QZ Z mmazw a chum co, PNbTO-LIHUGRAPHERs. wnwnsrm. L
N0. 799,723. PATBNTED SEPT. 19, 1905.
J. DEWRANGE & G, H. WALL.
REDUCING VALVE.
APPLICATION FILED 001'. 24. 1904.
4 SHEETS-SHEET 4..
IZget.
UNITED srngrns PATENT oFFIoE.
JOHN DEWRANCE AND GEORGE HENRY WALL, OF SOUTHWARK, ENGLAND.
' REDUCING-VALVE.
Specification of Letters Patent.
Patented Sept. 19, 1905.
Application filed October 24,1904. Serial No. 229,831.
To [I/ZZ 1071,0171 it nuty concern.-
.Be it known that we, J OHN-DEWRANOE and GEORGE HENRY WALL, of 165 Great Dover street, Southwark, in the county of Surrey, England, subjects of the King of Great Britain and Ireland, have invented certain new and useful Improvements in Reducing-Valves, of which the following is a specification.
This invention relates to valves for regulating the discharge of afluid of any given initial pressure (which may be variable) in such a manner as to automatically restrict the pressure of the discharge to some predetermined reduced pressure.
In the accompanying drawings, Figures 1 and 2 illustrate a reducing-valve embodying our improvements, Fig. 1 being a vertical section and Fig. 2 a side elevation with certain parts in section. Fig. 3 is a vertical section of the valve-casing on a plane at right angles to that employed in Fig. 1. Fig. A is a view similar to Fig. 3, illustrating a modification hereinafter more particularly referred to.
According to our invention, the main valve A for controlling the passage of the fluid is of the equilibrium type, and consists of two diskshaped heads a (0*, arranged at a suitable distance apart and either formed integrally with the valve stem or body a or rigidly attached thereto. Each head is preferably formed or provided with wings (0 which work in seatings or cut-olf rings a and serve as guides. The seatings or cut-off rings a a are maintained at a suitable distance apart by means of arms a which constitute a skeleton frame. The heads a (6* of the valve are larger in diameter than the bore of the seatings, so that the former take a bearing upon the faces of the latter. In order to admit of the parts being assembled, one of the seatings a is formed as a loose ring, and one of the heads a* is secured or otherwise attached to the valve etc or body. I
The fluid the pressure of which is to be reduced is admitted by way of openings a between the two heads a (0*, and when the valve A is open, as shown in Figs. 1 and 3, escapes in opposite directions between a (0* and their respective cut-off rings or seatings a a.
The valve A is connected, by means ofa stem 6/, to the long arm I) of a lever B, preferably of the first order, the said stem and lever being inclosed within a casing 12. The opposite or short arm 6* ofthe lever is connected, by means of a rod 0, to a flexible diaphragm C, whereof the upper side is inclosed within a casing 0, attached to the cover a of the mainvalve casing, while the lower side is supported upon a piston D. This piston is carried by a nut 0 applied to the lower end of the spindle c,'the extremity of the latter resting upon a yoke d, the ends of which engage with suspending-rods d d, borne by spiral or other suitable springs d W. The pressure of the springs d although capable of variation for purposes of adjustment, are normally capable of exercising a resistance equivalent to the pressure of the fluid acting on the inclosed face of the diaphragm C. Under such circumstances both the main valve A and the diaphragm C are respectively in equilibrium; but the respective movements of these two parts vary in the ratio of the lengths of the two arms 6 6* of the lever B, to which they are severally attached. Thus the movement of the valve A may be considerable, so as to afford a full-way passage for the fluid, while the movement of the diaphragm C is relatively small and admits of nearly the whole of its area being constantly borne by the springsupported piston D. Owing, moreover, to the small extent of the movement of the diaphragm, the pressure exerted by the springs d (Z remains practically constant.- It will be obvious that the design may be modified in ,such a manner as to admit of the pressure on the diaphragm C being counterbalanced by means of weights instead of springs.
When a valve of the equilibrium type, such as above referred to, is employed, the initial pressure is admitted between the heads a (0* thereof, passes to the reducedpressure side, and, entering the casing Z) by way of the passage Z2 ,..surrounding the valve-stem a finds its way to the inclosed face of the diaphragm O. Upon the reduced pressure becoming so far augmented as to exceed the load on the spring-supported diaphragm the latter is de flected, with the effect that the main valve A is partially or wholly closed.
It will be obvious that the apparatus de- Joo scribed may be made applicable for use as a surplus valve by transposing the inlet and outlet and inverting the valve with its seatings.
' Among other advantages resulting fromthe construction described the chamber in which the diaphragm is mounted remains comparatively cool, its distance from the valve-chamber being such that the transmission of heat by conduction is for the most part prevented. Moreover, the diaphragmchamber is not liable to collect dirt or sediment. It remains charged with the water of condensation and is only exposed to the reduced as distinguished from the initial pressure of the steam. Any sudden movement of the diaphragm, and consequently of the valve, is avoid ed by reason of the diaphragmchamber being; nearly closed, thus preventing' the rapid discharge of the water of condensation. I
What we claim as our invention, and desire to secure by Letters Patent, is
1. In a reducing-valve, the combination with a main controlling-valve of the equilibrium type, having two heads of equal diameter, and cut-ofi rings whereon the heads respectively seat, of a rocking-lever connected as to one arm with the said valve and as to the other arm with a reacting diaphragm;
JOHN DEWRANGE. GEORGE HENRY WVALL.
Witnesses:
H. D. J AMESON, F. L. RAND.
US1904229831 1904-10-24 1904-10-24 Reducing-valve. Expired - Lifetime US799723A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US1904229831 US799723A (en) 1904-10-24 1904-10-24 Reducing-valve.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1904229831 US799723A (en) 1904-10-24 1904-10-24 Reducing-valve.

Publications (1)

Publication Number Publication Date
US799723A true US799723A (en) 1905-09-19

Family

ID=2868209

Family Applications (1)

Application Number Title Priority Date Filing Date
US1904229831 Expired - Lifetime US799723A (en) 1904-10-24 1904-10-24 Reducing-valve.

Country Status (1)

Country Link
US (1) US799723A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4011734A (en) * 1975-05-08 1977-03-15 Parker-Hannifin Corporation Cryogenic pressure regulator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4011734A (en) * 1975-05-08 1977-03-15 Parker-Hannifin Corporation Cryogenic pressure regulator

Similar Documents

Publication Publication Date Title
US799723A (en) Reducing-valve.
US1113282A (en) Emergency check-valve.
US318748A (en) Enventoe
US339809A (en) Puppet-valve
US571346A (en) Pressure-reducing valve
US48969A (en) Improvement in governor-valves for steam-engines
US683388A (en) Reducing-valve.
US377963A (en) Check-valve
US717383A (en) Pump-governor.
US941092A (en) Steam or other fluid pressure regulator.
US659263A (en) Relief-valve.
US764661A (en) Steam-engine governor.
US794651A (en) Pressure reducing and regulating valve.
US681611A (en) Check-valve.
US81326A (en) John ashcroft
US122438A (en) Improvement in balanced slide-valves
US494984A (en) Feed-regulator
US1177029A (en) Valve.
US1209795A (en) Pilot-valve.
US518000A (en) Pressure-reducing valve
US504507A (en) Pressure-regulator
USRE9590E (en) Daniel c
US323039A (en) Pressure-regulating valve
US306385A (en) Safety-valve
US1235541A (en) Reducing-valve.