GB568055A - Improvements in and relating to pressure relief devices - Google Patents

Improvements in and relating to pressure relief devices

Info

Publication number
GB568055A
GB568055A GB12701/43A GB1270143A GB568055A GB 568055 A GB568055 A GB 568055A GB 12701/43 A GB12701/43 A GB 12701/43A GB 1270143 A GB1270143 A GB 1270143A GB 568055 A GB568055 A GB 568055A
Authority
GB
United Kingdom
Prior art keywords
shaft
plunger
pressure
rotates
arm
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
Application number
GB12701/43A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB568055A publication Critical patent/GB568055A/en
Expired legal-status Critical Current

Links

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

Abstract

568,055. Pressure-relieving devices. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 6, 1943, No. 12701. Convention date, Aug. 11, 1942. [Class 135] A pressure-relief device for an enclosed casing comprises a plunger 16 normally held in a retracted position by a shaft 23, but on rotation of the shaft, the plunger is released and pushed upwards by a spring 30 so that a sharp point 17 carried by the plunger will rupture a frangible diaphragm of tempered glass. The controlling member is an evacuated bellows 42 which is distended by an internal spring, but when the pressure in the casing becomes abnormal, the bellows collapses and a rod 41 connected thereto rises and, by means of a link 44, rotates a shaft 33. The end 36 of this shaft is half-round in section and supports the end of an arm 34 secured to a shaft 23 which is formed with a cut-away portion 27 pressing on a ledge 26 in the plunger 16 and holding the latter in the retracted position. As shaft 33 rotates, it releases arm 34 which drops and rotates shaft 23, the cut-away portion 27 thereupon releasing the plunger 16 to allow the latter to rise and rupture the diaphragm. A spring 45 is interposed between the bellows 42 and the arm 44, and the pressure at which the device operates is determined by the setting of nuts 55 which position the link 44. The various parts of the device are carried by a bracket 18 bolted inside the casing.
GB12701/43A 1942-08-11 1943-08-06 Improvements in and relating to pressure relief devices Expired GB568055A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US568055XA 1942-08-11 1942-08-11

Publications (1)

Publication Number Publication Date
GB568055A true GB568055A (en) 1945-03-15

Family

ID=22006668

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12701/43A Expired GB568055A (en) 1942-08-11 1943-08-06 Improvements in and relating to pressure relief devices

Country Status (1)

Country Link
GB (1) GB568055A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2529135A (en) * 1948-12-22 1950-11-07 Gen Electric Electric induction apparatus
WO2001096827A2 (en) * 2000-06-14 2001-12-20 Ifd Internal Fault Detector Corporation Internal fault indicator for power electrical devices
CN102939521A (en) * 2010-06-07 2013-02-20 Ifd内部故障探测器公司 Internal fault indicator for electrical equipment
US10605849B2 (en) 2015-02-23 2020-03-31 Ifd Internal Fault Detector Corp. Integrated fault monitoring apparatus for electrical equipment

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2529135A (en) * 1948-12-22 1950-11-07 Gen Electric Electric induction apparatus
WO2001096827A2 (en) * 2000-06-14 2001-12-20 Ifd Internal Fault Detector Corporation Internal fault indicator for power electrical devices
WO2001096827A3 (en) * 2000-06-14 2002-05-02 Ifd Internal Fault Detector Co Internal fault indicator for power electrical devices
KR100816935B1 (en) 2000-06-14 2008-03-26 아이에프디 인터널 폴트 디텍터 코포레이션 Internal fault indicator for power electrical devices
CN102939521A (en) * 2010-06-07 2013-02-20 Ifd内部故障探测器公司 Internal fault indicator for electrical equipment
CN102939521B (en) * 2010-06-07 2014-10-15 Ifd内部故障探测器公司 Internal fault indicator for electrical equipment
US9188500B2 (en) 2010-06-07 2015-11-17 Ifd Internal Fault Detector Corp. Internal fault indicator for electrical equipment
US10605849B2 (en) 2015-02-23 2020-03-31 Ifd Internal Fault Detector Corp. Integrated fault monitoring apparatus for electrical equipment
US11137312B2 (en) 2015-02-23 2021-10-05 Ifd Internal Fault Detector Corp. Integrated fault monitoring apparatus for electrical equipment

Similar Documents

Publication Publication Date Title
GB925611A (en) Combined tyre valve cap and pressure gauge
GB568055A (en) Improvements in and relating to pressure relief devices
GB872854A (en) Improvements in clutch control
US2500457A (en) Fluid pressure switch
US2316009A (en) Barometric device
US1701735A (en) Gauge
US2462126A (en) Lathe attachment
GB546839A (en) Improvements in pressure relief devices
JPS5213076A (en) Safety device of a sealing-shaped cylinder device
US2150142A (en) Thermal control
GB543423A (en) Improved spring support
GB616259A (en) Improvements in or relating to protective devices for pressure responsive members
USD136099S (en) Dial for aircraft attitude indicating device
GB1013133A (en) An improved valve-controlling arm for a fuel system
GB741198A (en) Fluid pressure gauges
BE588542A (en) Pressurized glass assembly device, with press punch driven by a pressurized agent.
GB632872A (en) Improvements in pressure relieving means for gases under pressure
GB562097A (en) Improvements in or relating to fluid-pressure-sensitive devices
GB591684A (en) Improvements in or relating to pressure gauges
GB203901A (en) Improvements in pressure and/or flow indicators
GB586837A (en) Improvements in or relating to barometric fuze devices for aerial bombs, pyrotechnicdevices and the like
GB1033814A (en) Improvements in or relating to electrical fuse-links
GB604891A (en) Improvements in forming and hardening devices for leaf or blade springs
GB1395905A (en) Telescopic position adjusting devices
GB568222A (en) Improvements in or relating to fluid pressure operated diaphragm motors