GB484211A - Improvements relating to explosion-proof enclosures for electric motors and the like - Google Patents

Improvements relating to explosion-proof enclosures for electric motors and the like

Info

Publication number
GB484211A
GB484211A GB2992736A GB2992736A GB484211A GB 484211 A GB484211 A GB 484211A GB 2992736 A GB2992736 A GB 2992736A GB 2992736 A GB2992736 A GB 2992736A GB 484211 A GB484211 A GB 484211A
Authority
GB
United Kingdom
Prior art keywords
collars
flanges
explosion
electric motors
improvements relating
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
GB2992736A
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical 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 Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Priority to GB2992736A priority Critical patent/GB484211A/en
Publication of GB484211A publication Critical patent/GB484211A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/24—Protection against failure of cooling arrangements, e.g. due to loss of cooling medium or due to interruption of the circulation of cooling medium

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Sealing Devices (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)

Abstract

484,211. Stuffing box substitutes. POOLE, R., and METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. Nov. 3, 1936, No. 29927. [Class 122 (v)] In an explosionproof enclosure for an electric motor or the like, flame propagation along the shaft is prevented by a labyrinth packing comprising intermeshing collars 6 .. 9 at least one of which is provided with radial flanges 10, the clearances between the collars being such as to permit passage of gas to the outside. The flanges may be integral with the collars or formed as separate rings or in the form of a spiral of ribbon or wire wound into a collar. The end faces of the collars may be formed with coaxial flanges. Specification 195,832, [Class 122 (v)], is referred to.
GB2992736A 1936-11-03 1936-11-03 Improvements relating to explosion-proof enclosures for electric motors and the like Expired GB484211A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2992736A GB484211A (en) 1936-11-03 1936-11-03 Improvements relating to explosion-proof enclosures for electric motors and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2992736A GB484211A (en) 1936-11-03 1936-11-03 Improvements relating to explosion-proof enclosures for electric motors and the like

Publications (1)

Publication Number Publication Date
GB484211A true GB484211A (en) 1938-05-03

Family

ID=10299449

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2992736A Expired GB484211A (en) 1936-11-03 1936-11-03 Improvements relating to explosion-proof enclosures for electric motors and the like

Country Status (1)

Country Link
GB (1) GB484211A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1105049B (en) * 1958-11-25 1961-04-20 Siemens Ag Bearing cover designed as a shaft feed-through for flameproof electrical machines
US4743034A (en) * 1987-03-27 1988-05-10 Durametallic Corporation Labyrinth bearing protector seal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1105049B (en) * 1958-11-25 1961-04-20 Siemens Ag Bearing cover designed as a shaft feed-through for flameproof electrical machines
US4743034A (en) * 1987-03-27 1988-05-10 Durametallic Corporation Labyrinth bearing protector seal

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