GB1231901A - - Google Patents

Info

Publication number
GB1231901A
GB1231901A GB1231901DA GB1231901A GB 1231901 A GB1231901 A GB 1231901A GB 1231901D A GB1231901D A GB 1231901DA GB 1231901 A GB1231901 A GB 1231901A
Authority
GB
United Kingdom
Prior art keywords
pipes
collars
joint
sleeve
pipe
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
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 filed Critical
Publication of GB1231901A publication Critical patent/GB1231901A/en
Expired legal-status Critical Current

Links

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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
    • F16L25/02—Electrically insulating joints or couplings
    • F16L25/023—Electrically insulating joints or couplings for joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts

Abstract

1,231,901. Insulating pipe joint. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 18 Feb., 1970 [18 Feb., 1969], No. 8647/69. Heading F2G. [Also in Division H2] In a joint for high pressure liquids (e.g. cooling liquid) in which two electrically conducting pipes 1, 2 within an electrical machine are mutually insulated by a rigid insulating sleeve 6, metal collars 5, 7, are interposed between the pipe ends and the spacer sleeve 6, at least that collar which is anodic when the machine is in use being of a metal which forms a protective electrically resistant skin under electrolytic action. Suitable metals for the collars are titanium, tantalum, niobium, zirconium, vanadium, hafnium or any alloys thereof. The collars may be welded or brazed to the pipes, or may removably abut the pipe ends, a, as shown, abut ferrules 3, 4 on the pipes which ferrules may be of the material of either pipes or collars. The joint may be held together by a nut 12 and an external sleeve 9 insulated from pipe 1 by a ceramic oxide plug 11, and insulating layers 14, 15. The insulating sleeve 6 is of metallic oxide and the pipes 1 and 2, or the end portions thereof may be titanium. Sealing rings 8 are of an ageing resistant plastics material. The joint is suitable for connecting the cooling manifold and windings of an electric generator. Specification 1,150,047 is referred to.
GB1231901D 1969-02-18 1969-02-18 Expired GB1231901A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB864769 1969-02-18

Publications (1)

Publication Number Publication Date
GB1231901A true GB1231901A (en) 1971-05-12

Family

ID=9856511

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1231901D Expired GB1231901A (en) 1969-02-18 1969-02-18

Country Status (1)

Country Link
GB (1) GB1231901A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2134613A (en) * 1983-01-26 1984-08-15 Petroles Cie Francaise Production-tube connection for an oil well

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2134613A (en) * 1983-01-26 1984-08-15 Petroles Cie Francaise Production-tube connection for an oil well

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee