US57993A - Improvement in steam-generator safety-valves - Google Patents
Improvement in steam-generator safety-valves Download PDFInfo
- Publication number
- US57993A US57993A US57993DA US57993A US 57993 A US57993 A US 57993A US 57993D A US57993D A US 57993DA US 57993 A US57993 A US 57993A
- Authority
- US
- United States
- Prior art keywords
- valve
- steam
- valves
- improvement
- box
- 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
Links
- 210000003800 Pharynx Anatomy 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000284 resting Effects 0.000 description 2
Images
Classifications
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- 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
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- 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
-
- 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
- Y10T137/7837—Direct response valves [i.e., check valve type]
- Y10T137/7904—Reciprocating valves
- Y10T137/7908—Weight biased
-
- 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
- Y10T137/7837—Direct response valves [i.e., check valve type]
- Y10T137/7904—Reciprocating valves
- Y10T137/7908—Weight biased
- Y10T137/7909—Valve body is the weight
- Y10T137/7913—Guided head
- Y10T137/7915—Guide stem
Definitions
- A represents the valve-box, which is made of cast-iron, in the form shown, and circular on the under side to lit snugly upon the boiler.
- valve-box Within the valve-box is constructed a smaller box, E, into which is placed the valve, and through which the steam passes.
- valve C represents the valve.
- This valve is cast in the forni shown, ot one piece of metal, and is placed at the forward portion of the box F, with one portion within and a small portion ofthe same resting upon the outer side of said box.
- the upper portion is upon the valve-seat z, and markedfz, and is of greater circumference and weight than the lower portion7 marked l), upon the valve-seat fr.
- D represents a lever, which is pivoted to a small upright, It, at the forward end and upon the top of the box F. This lever extends over, and is secured to, the valve, as shown, and has a weight, E, attached to the rea-rmost end of box A.
- B is the inlet for the steam to pass to the valve, and is partitioned to prevent being tampered with.
- This valve is what is knownas a balance-valve, as the pressure of the steam is on top of one valve, b, and underneath the other, a. Bot-h valves being-on one rod, or being cast of one piece of metal, so that all of the pressure exerted on the lower valve, l), is just that much weight subtracted from the standing weight E on end of lever D.
- G represents a perforated disk, which is placed in the throat, and through which the steam escapes.
- c is a guide-stem, which is cast v with the valve, and is placed within a shorttube, di, in the bottom ofthe box E, for the purpose of keeping the valves min their proper places.
- This valve is firmly and securely covered with a suitable lid, which is bolted to the valve, and a chain passed through the links made in each bolt, so that it would be impossible to tamper with the valve.
- the Valve herein described is placed upon the top of any of the boilers now in use; but it is suggested to place the entire valve within the boiler for those hereafter to be constructed.
- valve-box A provided with an inner box, F, valve C, and lever D with weight E, inlet B, and throat G, the whole being constructed and arranged in the manner substantially as and for the purpose herein set forth.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
- Mechanically-Actuated Valves (AREA)
Description
UNITED STATES PATENT OEEIGE.
STEPHEN STUGKY, OF NEW ALBANY, INDIANA.
IMPROVEMENT IN STEAM-GENERATOR SAFETY-VALVES.
Specification forming part ofLetters Patent No. 57,993, dated September 11, 1866.
To alt 'whom it may concer-n.'
Be it known that I, STEPHEN STUCKY, of New Albany, in the county of Floyd and State ot' Indiana, have invented certain new and useful Improvements in Safetyvalves; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, and the letters of reference marked thereon, making a part of this specification.
In the annexed drawings, A represents the valve-box, which is made of cast-iron, in the form shown, and circular on the under side to lit snugly upon the boiler.
Within the valve-box is constructed a smaller box, E, into which is placed the valve, and through which the steam passes.
C represents the valve. This valve is cast in the forni shown, ot one piece of metal, and is placed at the forward portion of the box F, with one portion within and a small portion ofthe same resting upon the outer side of said box. In the construction of this valve it will be seen that the upper portion is upon the valve-seat z, and markedfz, and is of greater circumference and weight than the lower portion7 marked l), upon the valve-seat fr.
D represents a lever, which is pivoted to a small upright, It, at the forward end and upon the top of the box F. This lever extends over, and is secured to, the valve, as shown, and has a weight, E, attached to the rea-rmost end of box A.
B is the inlet for the steam to pass to the valve, and is partitioned to prevent being tampered with. This valve is what is knownas a balance-valve, as the pressure of the steam is on top of one valve, b, and underneath the other, a. Bot-h valves being-on one rod, or being cast of one piece of metal, so that all of the pressure exerted on the lower valve, l), is just that much weight subtracted from the standing weight E on end of lever D.
In the use of this valve it will be seen that over double the orifice is obtained through which the steam may escape, it being almost impossible to explode a boiler with a valve of this kind with the same amount of valve surface that is at present used, and so much more opening for the same-sized chamber. There a being very near a balance7 only enough deadweight is required to counterbalance the amount of area of the large valve over that of the small one. Were the valve-disks a and b of equal size and weight the pressure of the steam underneath the valve c and the pressure upon the top of valve b would be equal and the valve remain stationary; whereas in the present form and size ofthe valves, a sut'- cient weight is required tocounterbalance the difference in the two valves.
G represents a perforated disk, which is placed in the throat, and through which the steam escapes. c is a guide-stem, which is cast v with the valve, and is placed within a shorttube, di, in the bottom ofthe box E, for the purpose of keeping the valves min their proper places. This valve is firmly and securely covered with a suitable lid, which is bolted to the valve, and a chain passed through the links made in each bolt, so that it would be impossible to tamper with the valve. The Valve herein described is placed upon the top of any of the boilers now in use; but it is suggested to place the entire valve within the boiler for those hereafter to be constructed.
Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-
The valve-box A, provided with an inner box, F, valve C, and lever D with weight E, inlet B, and throat G, the whole being constructed and arranged in the manner substantially as and for the purpose herein set forth.-
As evidence that I claim the foregoing I have hereunto set my hand in the presence of witnesses.
STEPHEN ST UGKY.
R. M. WEIR, T. F. J AcxsoN, DAVID WILKINSON.
Publications (1)
Publication Number | Publication Date |
---|---|
US57993A true US57993A (en) | 1866-09-11 |
Family
ID=2127532
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US57993D Expired - Lifetime US57993A (en) | Improvement in steam-generator safety-valves |
Country Status (1)
Country | Link |
---|---|
US (1) | US57993A (en) |
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0
- US US57993D patent/US57993A/en not_active Expired - Lifetime
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