US258588A - Safety-valve - Google Patents
Safety-valve Download PDFInfo
- Publication number
- US258588A US258588A US258588DA US258588A US 258588 A US258588 A US 258588A US 258588D A US258588D A US 258588DA US 258588 A US258588 A US 258588A
- Authority
- US
- United States
- Prior art keywords
- valve
- safety
- holes
- regulating
- hollow
- 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
- 238000010276 construction Methods 0.000 description 4
- 230000000284 resting Effects 0.000 description 4
- 101700045773 CLIP1 Proteins 0.000 description 2
- 241000499489 Castor canadensis Species 0.000 description 2
- 102100012873 MAGEH1 Human genes 0.000 description 2
- 101710027575 MAGEH1 Proteins 0.000 description 2
- 235000011779 Menyanthes trifoliata Nutrition 0.000 description 2
- 240000002444 Sphenoclea zeylanica Species 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
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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
- Y10T137/7738—Pop valves
- Y10T137/7741—Pop pressure reactor in branched released path
- Y10T137/7742—Separate relief valves or valves for each branch
-
- 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
- Y10T137/7744—Adjustable choke
-
- 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
- Y10T137/7922—Spring biased
- Y10T137/7929—Spring coaxial with valve
- Y10T137/7932—Valve stem extends through fixed spring abutment
Definitions
- My invention relates to improvements in what are termed reactionary safety-valves, and has for its object the construction of a simple and efi'eetive safety-valve.
- Figure 1 is a vertical section of the valve and case, showing its general construction.
- Fig. 2 is a section through valve B 011 line B showing the form of the valve.
- Fig. 3 is a top view of the base of the valve-case and the central hub on line A.
- Fig. 4 is a vertical section of valve B, showing the radial adjusted regulating-holes.
- Fig. 1 shows a vertical section of the safetyvalve. It consists of a hollow valve, B, and its stem,restin g upon two seats, H H. Into the top of the stem an adjusting pin-valve, X, is screwed, extending down into it to the regulating-holes a a. The stem and valve arejoined together with a socket-joint. The seats H H are made on the shell P and hub L, the hub being attached to the shell P by supportingarms, which are shown clearly in Fig. 3.
- the valve operates as follows: Assuming the regulating-holes a a closed by the'adjusting pin-valve X and the valve B lifted from its seat, the steam will escape into the hollow portion of it and cause the valve to rise beyond its normal position by the greater area exposed to the steam-pressure.
- valve B By adjusting the pin-valve" X the valve B can be closed at the desired pressure by allowing the steam to escape in the proper proportion through the regulating-holes a a.
- the adjusting pinvalve X may be dispensed with, using only the radial regulating-holes d d, Fig. 4, adjusted to the proper size, the valve being only hollow to the regulating-holes, which may be put in any section of the valve or its stem where practice may dictate most convenient.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Description
lhZ/zes'se/s liwentar (No Model.)
J. R. MITCHELL.
SAFETY VALVE.
No. 258,588. Patented May 30, 1882.
@4549 I /w% QM iimwdfazr N. PETERS. PMO'UUIOHI'JPMI'. Wnihi nnnnnnnn C.
tlwrren STATES PATENT QF ICE.
JOSEPH R. MITCHELL, OF NE\V BRIGHTON,PENNSYLVANIA.
SAFETY-VALVE.
SPECIFICATION forming part of Letters Patent No. 258,588, dated 1 ay 30, 1882.
Application filed J anuary 13, 1882. (No model.)
I To all whom it may concern:
Be it known that .l, J OSEPH R. MrronELL, of New Brighton, county of Beaver, and State of Pennsylvania, have invented certain new and useful Improvements in Safety-Valves, of which the following is a clear and full specification.
My invention relates to improvements in what are termed reactionary safety-valves, and has for its object the construction of a simple and efi'eetive safety-valve.
Figure 1 is a vertical section of the valve and case, showing its general construction. Fig. 2 is a section through valve B 011 line B showing the form of the valve. Fig. 3 is a top view of the base of the valve-case and the central hub on line A. Fig. 4 is a vertical section of valve B, showing the radial adjusted regulating-holes.
Fig. 1 shows a vertical section of the safetyvalve. It consists of a hollow valve, B, and its stem,restin g upon two seats, H H. Into the top of the stem an adjusting pin-valve, X, is screwed, extending down into it to the regulating-holes a a. The stem and valve arejoined together with a socket-joint. The seats H H are made on the shell P and hub L, the hub being attached to the shell P by supportingarms, which are shown clearly in Fig. 3.
The valve operates as follows: Assuming the regulating-holes a a closed by the'adjusting pin-valve X and the valve B lifted from its seat, the steam will escape into the hollow portion of it and cause the valve to rise beyond its normal position by the greater area exposed to the steam-pressure.
By adjusting the pin-valve" X the valve B can be closed at the desired pressure by allowing the steam to escape in the proper proportion through the regulating-holes a a.
Under suitable conditions the adjusting pinvalve X may be dispensed with, using only the radial regulating-holes d d, Fig. 4, adjusted to the proper size, the valve being only hollow to the regulating-holes, which may be put in any section of the valve or its stem where practice may dictate most convenient.
Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-- 1 A hollow valve, B, resting upon two seats, with radial adjusted holes for the escape of the steam in the proper proportion from the central hollow part, for the purpose as shown and set forth.
2. In a safety-valve arranged as described, the hollow stem and valve with regulatingholes and resting upon two seats, in combination with the adjusting pin-valve X, substantially as and for the purpose shown.
JOSEPH RAMSDEN MITCHELL.
Witnesses:
HENRY WILDE, ISABEL L. WILDE.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US258588A true US258588A (en) | 1882-05-30 |
Family
ID=2327869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US258588D Expired - Lifetime US258588A (en) | Safety-valve |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US258588A (en) |
-
0
- US US258588D patent/US258588A/en not_active Expired - Lifetime
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