US86168A - William h - Google Patents
William h Download PDFInfo
- Publication number
- US86168A US86168A US86168DA US86168A US 86168 A US86168 A US 86168A US 86168D A US86168D A US 86168DA US 86168 A US86168 A US 86168A
- Authority
- US
- United States
- Prior art keywords
- valve
- seat
- steam
- william
- projection
- 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
- 238000007664 blowing Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- RZVAJINKPMORJF-UHFFFAOYSA-N p-acetaminophenol Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 2
- 230000036633 rest Effects 0.000 description 2
- 238000004326 stimulated echo acquisition mode for imaging Methods 0.000 description 2
- 101700082413 tant Proteins 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
- Figure 2 is a plan view of the valve-seat.
- the nature of my invention relates to the construction of safety-valves having an overhanging projection, whereby a greatly-increased surface is exposed to the action of the steam when the valve is raised, and in surrounding the projection by a rim attached to the valve-seat, whereby an annular opening for the downward discharge of the steam is secured, these conditions being most desirable in safety-valves controlled by means of springs, as they insure a more reliable ⁇ action ofthe valve in opening and closing.
- the valve A has its disk made of suticient diameter to project beyond its bevelled face, where it rests upon its seat.
- the .a1ve-seat B is provided with an outer riin, (l, bored out large enough to allow the enlarged disk of the valve to move in it freely in a vertical direction.
- the arms, D D D hold the rim C in its position in relation to the valve-seat B.
- the annular opening, E is formed by cutting away the outer upper edge of the valve-seat B, and the inner lower edge ofthe rim C, as shown.
- valves having anoverhanging projection have been long known and used; therefore I do not claim them broadly; but
- valve-seat B with the rim C and annular opening E, as set forth.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Description
ETERS, PNOTDAJYNOGRAPHER, WASH NGTON D C WILLIAM H. LOW, OF NEW YORK, N.
tant
Batters Patent No. 86,168, dated January 26, V1869.
IMPROVEMENT IN STEAM SAFETYVALVES The Schedule referred to in these Letters Patent and making part of the same.
Mov- To all whom 'it may concern:
Be it known that 1, WILLIAM H. Low, of the city, county, and State of New York, have invented anew and useful Improvement on Safety-Valves; and I hereby declare the following to be a full and exact description of the same, reference being had to accompanying drawings, making a part of this specification, in which- Figure l is an elevation of the valve, showinga longitudinal section ofthe valve-seat, from which the valve is raised, as when blowing off.
Figure 2 is a plan view of the valve-seat.
The nature of my invention relates to the construction of safety-valves having an overhanging projection, whereby a greatly-increased surface is exposed to the action of the steam when the valve is raised, and in surrounding the projection by a rim attached to the valve-seat, whereby an annular opening for the downward discharge of the steam is secured, these conditions being most desirable in safety-valves controlled by means of springs, as they insure a more reliable` action ofthe valve in opening and closing.
The following description will enable others skilled in the art to make and use my invention.
The valve A has its disk made of suticient diameter to project beyond its bevelled face, where it rests upon its seat.
The .a1ve-seat B is provided with an outer riin, (l, bored out large enough to allow the enlarged disk of the valve to move in it freely in a vertical direction.
The arms, D D D, hold the rim C in its position in relation to the valve-seat B.
The annular opening, E, is formed by cutting away the outer upper edge of the valve-seat B, and the inner lower edge ofthe rim C, as shown.
The course of the steam, when the valve is blowing off, is shown by the arrows.
When thel valve is closed, the operation of this valve is like that of the ordinary safety-valve, but, when the pressure of steam upon the exposed surface of the *alve overcomes the resist-ance of the spring, causing the valve to rise, the escaping steam, acting on the overhangin g projection ofthe valve, overcome-s the increased resistance the spring has obtained by heilig compressed, forces the valve still further open, insuring a decrease in the pressure of steam below the point required.v
lVhen this has been obtained, the effect of the downward current of the discharged steam through the annular opening l) is to canse a rapid closing of the valve, produced by moans of a partial vacuum formed under the overhanging projection.
Among the advantages of this valve are, its simplicity, its rapid action, and its reliability.
I am aware that valves having anoverhanging projection have been long known and used; therefore I do not claim them broadly; but
That I do claim as my invention, and desire to secure by Letters Patent, is-
The construction of the valve-seat B with the rim C and annular opening E, as set forth.
, WILLIAM H. LOW. A Witnesses:
J AMES A. Game, G. D. lvn'ros.`
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US86168A true US86168A (en) | 1869-01-26 |
Family
ID=2155657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US86168D Expired - Lifetime US86168A (en) | William h |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US86168A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3677286A (en) * | 1970-11-25 | 1972-07-18 | Bloomfield Valve Corp | Valve |
-
0
- US US86168D patent/US86168A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3677286A (en) * | 1970-11-25 | 1972-07-18 | Bloomfield Valve Corp | Valve |
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