US1415216A - Safety valve or blow-off - Google Patents
Safety valve or blow-off Download PDFInfo
- Publication number
- US1415216A US1415216A US331323A US33132319A US1415216A US 1415216 A US1415216 A US 1415216A US 331323 A US331323 A US 331323A US 33132319 A US33132319 A US 33132319A US 1415216 A US1415216 A US 1415216A
- Authority
- US
- United States
- Prior art keywords
- blow
- safety valve
- transformer
- diaphragm
- pressure
- 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
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
- H01F2027/404—Protective devices specially adapted for fluid filled transformers
Definitions
- This invention relates to safety blow-offs and particularly to means for relieving the sudden excess pressure sometimes developed in electrical transformers, due for instance to short circuit within the transformer casing.
- the object of the invention is to provide a blow-ofil normally maintaining the transformer casing tightly sealed and readily o-pened by an excessive internal pressure and providing a large and direct outlet from the interior of the transformer so as to prevent dangerous overpressure.
- Fig. 1 is a plan view of one embodiment of my invention.
- Fig. 2 is a vertical sectional view of the same.
- the embodiment shown 3 is a top portion of a transformer casing intoI which opens the cylinder 4 closed at the top by the diaphragm 5 which is preferably a very thin sheet of aluminum or similar material.
- the diaphragm 5 is held between gaskets 6 and 7 and clamping rings 8 and 9 bolted together as shown, the lower ring 9 being screwed at 10 onto the upper end of the cylinder 4.
- a cap 15 is provided having top 16 and side flange 17 and fastened in lace by pins or screws 18 and arms 19 carrled, by clamping bolts 20.
Description
R. V. BINGAY.
SAFETY VALVE 0R BLOW-OFF.
APPLICATION FILED ocT. I7. I9I9.
1,41 5,21 6. Patented May 9, 1922.
UNITED STATES PATENT OFFICE.
ROBERT V. BING-AY, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR TO PITTSBURGH TRANSFORMER COMPANY, A CORPORATION OF PENNSYLVANIA.
SAFETY VALVE OR BLOW-OFF.
Specification of Letters Patent.
Patented May 9, 1922.
Application filed October 17, 1919. Serial No. 331,323.
To all whom t mary concern:
Be it known that I, ROBERT V. BINGAY, a citizen of the United States, residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented Cer tain new and useful Improvements in Safety Valves or Blow-Offs, of which the following is a specification.
This invention relates to safety blow-offs and particularly to means for relieving the sudden excess pressure sometimes developed in electrical transformers, due for instance to short circuit within the transformer casing. The object of the invention is to provide a blow-ofil normally maintaining the transformer casing tightly sealed and readily o-pened by an excessive internal pressure and providing a large and direct outlet from the interior of the transformer so as to prevent dangerous overpressure.
A rise in pressure in a transformer some times occurs so suddenly and powerfully as to amount to an explosion, so that it is of utmost importance that a quickly releasing outlet of practically no resistance be instantaneously provided. Prior pressure reliefmeans have been unsatisfactory, panticularly in constraining the outow to a curved or tortuous path and thus impeding it and causing dangerous excessive pressure within the transformer. With the device of this invention the release is immediate andthe outflow straight and uninipeded.
In the accompanying drawings:
Fig. 1 is a plan view of one embodiment of my invention, and
Fig. 2 is a vertical sectional view of the same.
Tn the embodiment shown 3 is a top portion of a transformer casing intoI which opens the cylinder 4 closed at the top by the diaphragm 5 which is preferably a very thin sheet of aluminum or similar material. The diaphragm 5 is held between gaskets 6 and 7 and clamping rings 8 and 9 bolted together as shown, the lower ring 9 being screwed at 10 onto the upper end of the cylinder 4.
To protect and house the parts a cap 15 is provided having top 16 and side flange 17 and fastened in lace by pins or screws 18 and arms 19 carrled, by clamping bolts 20.
In case of accident causing an excessive rise in pressure in the transformer the thin diaphragm 5 is ruptured and the cap 15 is blown of, shearing the pins or screws 18 which are made very thin and weak and preferably of brass or other soft metal. By this blow off the excessive pressure within the casing is given immedlate and direct access o the outside through a short straight pasage. None of the parts can become fastened or rusted in place against easy release, the whole device is readily reassembled by replacing the broken diaphragm and screws, and under normal conditions an air-tight, weather proof seal is maintained and the diaphragm protected from accidental in- Jury.
The combination with a container having an outlet, of a fragile diaphragm closing said outlet, and a protectlve cap member releasably held in lace and adapted to automatically open an permit unobstructed outflow through said outlet upon rupture of said diaphragm.
R0 ERT V. BINGAY.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US331323A US1415216A (en) | 1919-10-17 | 1919-10-17 | Safety valve or blow-off |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US331323A US1415216A (en) | 1919-10-17 | 1919-10-17 | Safety valve or blow-off |
Publications (1)
Publication Number | Publication Date |
---|---|
US1415216A true US1415216A (en) | 1922-05-09 |
Family
ID=23293471
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US331323A Expired - Lifetime US1415216A (en) | 1919-10-17 | 1919-10-17 | Safety valve or blow-off |
Country Status (1)
Country | Link |
---|---|
US (1) | US1415216A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2915216A (en) * | 1956-11-23 | 1959-12-01 | Black Sivalls & Bryson Inc | Safety pressure relief device |
US3145874A (en) * | 1962-10-22 | 1964-08-25 | James E Webb | Means for controlling rupture of shock tube diaphragms |
DE1208581B (en) * | 1957-07-01 | 1966-01-05 | C D Patents Ltd | Safety device |
US3310197A (en) * | 1965-05-17 | 1967-03-21 | Midland Mfg Corp | Safety vent |
US3515309A (en) * | 1968-10-18 | 1970-06-02 | Atomic Energy Commission | Sensitive burst diaphragm for relief of overpressures |
US3972481A (en) * | 1974-12-18 | 1976-08-03 | Nimco Shredding Co. | Shredding system improvement to suppress explosions |
US6005233A (en) * | 1997-07-15 | 1999-12-21 | Aladdin Synergetics, Inc. | Pressure relief system for inductively heated heat retentive server |
EP3990853B1 (en) | 2019-06-25 | 2023-06-07 | Rheinmetall BAE Systems Land Limited | Overpressure protection system for a magazine |
-
1919
- 1919-10-17 US US331323A patent/US1415216A/en not_active Expired - Lifetime
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2915216A (en) * | 1956-11-23 | 1959-12-01 | Black Sivalls & Bryson Inc | Safety pressure relief device |
DE1208581B (en) * | 1957-07-01 | 1966-01-05 | C D Patents Ltd | Safety device |
US3145874A (en) * | 1962-10-22 | 1964-08-25 | James E Webb | Means for controlling rupture of shock tube diaphragms |
US3310197A (en) * | 1965-05-17 | 1967-03-21 | Midland Mfg Corp | Safety vent |
US3515309A (en) * | 1968-10-18 | 1970-06-02 | Atomic Energy Commission | Sensitive burst diaphragm for relief of overpressures |
US3972481A (en) * | 1974-12-18 | 1976-08-03 | Nimco Shredding Co. | Shredding system improvement to suppress explosions |
US6005233A (en) * | 1997-07-15 | 1999-12-21 | Aladdin Synergetics, Inc. | Pressure relief system for inductively heated heat retentive server |
EP3990853B1 (en) | 2019-06-25 | 2023-06-07 | Rheinmetall BAE Systems Land Limited | Overpressure protection system for a magazine |
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