US90279A - Improvement in safety-valves - Google Patents
Improvement in safety-valves Download PDFInfo
- Publication number
- US90279A US90279A US90279DA US90279A US 90279 A US90279 A US 90279A US 90279D A US90279D A US 90279DA US 90279 A US90279 A US 90279A
- Authority
- US
- United States
- Prior art keywords
- valve
- safety
- valves
- steam
- disk
- 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
- 210000000614 Ribs Anatomy 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 206010040003 Sensation of pressure Diseases 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000284 resting Effects 0.000 description 2
Images
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
- 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
-
- 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
- Y10T137/7738—Pop valves
Definitions
- WITN ESSES WITN ESSES.
- A is a valve, having a guide-pin, D, below and guidewings B B B above.
- C is a concave disk at a convenient distance above the valve, resting on the guide-win gs and attached iirmly thereto.
- E is the valve-seat, sc'ewed into the holder H.
- the guide-nut I is suspended by the braces K K, leaving a clear passage for the steam to the valve.
- the top of the seat E is extended above the valve outwardly and upward, and then in again, so as to form the annular steam-passage G of a capacity sutticient to allow the steam to pass by the valve when raised in blowing off, and also to form a chamber above the valve with vertical sides, against which the guide-wings lnay have a bearing.
- the rim F will be high enough so that when the valve is shut down the lower edge of the disk C will be a little, perhaps a sixteenth of an inch, below the upper edge of the rim.
- the diameter of the disk will be a little less than the guide-wings, so as not to touch the sides of the steam-chamber above the valve.
- O O is the cover, P the try-lever, and R the lock.
- the object is to overcome the increased compression ofthe spring as the valve rises, which is done by the velocity of the escaping steam, as above described.
- valve A with its concave disk C, ribs B, and guide-pin D, constructed and combined substantially as herein set forth.
- valve A The combination and arrangement of the valve A, disk C, ribs B, guidepin l), guidenut I, valve-seat E. braces K, holder H, annular passage G, rim F, spring N, bolts L, crosshead M, lever P, and cover O, substantially as herein made known.
Description
INVNTOR.
WITN ESSES.
UNITED STAT-ns PATENT OFFICE.
JOHN D. LYNDE, OF PHILADELPHIA, PENNSYLVANIA.
IMPROVEMENT IN SAFETY-VALVES.
Specification forming part of Letters Patent No. 90,279, dated May 18, 1869.
Be it known that I, JOHN D. LYNDE, of the city and county of Philadelphia, and State of Pennsylvania, have invented a new and useful lniprovementin Steam Safety-Valves; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexeddrawing, making a part of this speciiication, in which the shaded portion is a longitudinal elevation of the subject of this invention, the lined part showin gthe necessary surroundings of the valve when in use.
A is a valve, having a guide-pin, D, below and guidewings B B B above. C is a concave disk at a convenient distance above the valve, resting on the guide-win gs and attached iirmly thereto. E is the valve-seat, sc'ewed into the holder H. The guide-nut I is suspended by the braces K K, leaving a clear passage for the steam to the valve. The top of the seat E is extended above the valve outwardly and upward, and then in again, so as to form the annular steam-passage G of a capacity sutticient to allow the steam to pass by the valve when raised in blowing off, and also to form a chamber above the valve with vertical sides, against which the guide-wings lnay have a bearing. The rim F will be high enough so that when the valve is shut down the lower edge of the disk C will be a little, perhaps a sixteenth of an inch, below the upper edge of the rim. The diameter of the disk will be a little less than the guide-wings, so as not to touch the sides of the steam-chamber above the valve. By means ofthe bolts L L,
cross-head M, and spring N the valve is held down to its seat.
O O is the cover, P the try-lever, and R the lock.
Thus it is a complete locked-up safety-val ve, a-nd cannot be tampered with without picking the lock or violating some of the parts.
The operation is as follows: When the press ure rises to the point at which the valve is set to blow,77 the steam commences to pass out, first entering the annular passage G; then, being turned suddenly upward, it strikes against the disk C with great force and velocity, carrying it upward, thus openin g the valve wider, also overcoming the increased compression of the spring. The steam then blows off rapidly until the pressure falls enough so that the spring can overcome the force against disk C, (which, so far as tried, is about two pounds,) when the valve will be suddenly closed.
The object is to overcome the increased compression ofthe spring as the valve rises, which is done by the velocity of the escaping steam, as above described.
What I claim as my invention, and desire to secure by Letters Paten t, is
1. The valve A, with its concave disk C, ribs B, and guide-pin D, constructed and combined substantially as herein set forth.
2. The disk C, combined with the valve A, annular passage G, and rim F, substantially as herein described.
3. The combination and arrangement of the valve A, disk C, ribs B, guidepin l), guidenut I, valve-seat E. braces K, holder H, annular passage G, rim F, spring N, bolts L, crosshead M, lever P, and cover O, substantially as herein made known.
JOHN D. LYNDE.
Witnesses JOHN H. SEBoLD, C. A. LYNDE.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US90279A true US90279A (en) | 1869-05-18 |
Family
ID=2159758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US90279D Expired - Lifetime US90279A (en) | Improvement in safety-valves |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US90279A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060006857A1 (en) * | 2004-06-24 | 2006-01-12 | Stmicroelectronics Sa | Method for controlling the operation of a low-dropout voltage regulator and corresponding integrated circuit |
| US20060168627A1 (en) * | 2003-03-24 | 2006-07-27 | Johnson Controls Technology Company | System and method for configuring a wireless communication system in a vehicle |
-
0
- US US90279D patent/US90279A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060168627A1 (en) * | 2003-03-24 | 2006-07-27 | Johnson Controls Technology Company | System and method for configuring a wireless communication system in a vehicle |
| US20060006857A1 (en) * | 2004-06-24 | 2006-01-12 | Stmicroelectronics Sa | Method for controlling the operation of a low-dropout voltage regulator and corresponding integrated circuit |
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