GB557631A - Improvements in x-ray tubes - Google Patents

Improvements in x-ray tubes

Info

Publication number
GB557631A
GB557631A GB7251/42A GB725142A GB557631A GB 557631 A GB557631 A GB 557631A GB 7251/42 A GB7251/42 A GB 7251/42A GB 725142 A GB725142 A GB 725142A GB 557631 A GB557631 A GB 557631A
Authority
GB
United Kingdom
Prior art keywords
anode
support
magnetic
energised
rest
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
GB7251/42A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Priority to GB7251/42A priority Critical patent/GB557631A/en
Publication of GB557631A publication Critical patent/GB557631A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
    • H01J35/08—Anodes; Anti cathodes
    • H01J35/10—Rotary anodes; Arrangements for rotating anodes; Cooling rotary anodes
    • H01J35/101—Arrangements for rotating anodes, e.g. supporting means, means for greasing, means for sealing the axle or means for shielding or protecting the driving
    • H01J35/1017—Bearings for rotating anodes
    • H01J35/1024—Rolling bearings

Landscapes

  • X-Ray Techniques (AREA)

Abstract

557,631. Magnetic brakes. BRITISH THOMSONHOUSTON CO., Ltd. (General Electric Co.). May 28, 1942, No. 7251. [Class 103 (i)] [Also in Group XL] An X-ray tube having a rotatable anode is provided within the envelope with magnetic braking means for bringing the anode to rest when the drive ceases. The X-ray tube shown comprises an anode support or pedestal 17 extending into the glass extension 21 to which it is sealed at 29 by a member 25, 27. The anode 11 is attached to a cylindrical member 15 of steel carried by a spindle 37 mounted by roller bearings 33, 35 within a tubular part 19 of the support 17. The bearings are positioned by members 39, 41 and may be lubricated in the manner described in Specification 542,665, [Group II]. The braking device comprises a permanent magnet 43 secured in a slot in the support part 19 by transverse straps which also form pole pieces 47, 49 slightly spaced from the steel part 15 which completes the magnetic circuit. The skirt 31 of the anode is of cuprous material and with the steel part 15 constitute the rotor of a motor device by which the anode is driven, the stator being formed by annular windings disposed about the tube extension 21 and which when energised establish a rotating field. The co-operation of the magnet 43 with the part 15 produces a braking action which rapidly brings the anode to rest when the windings are de-energised.
GB7251/42A 1942-05-28 1942-05-28 Improvements in x-ray tubes Expired GB557631A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7251/42A GB557631A (en) 1942-05-28 1942-05-28 Improvements in x-ray tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7251/42A GB557631A (en) 1942-05-28 1942-05-28 Improvements in x-ray tubes

Publications (1)

Publication Number Publication Date
GB557631A true GB557631A (en) 1943-11-29

Family

ID=9829522

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7251/42A Expired GB557631A (en) 1942-05-28 1942-05-28 Improvements in x-ray tubes

Country Status (1)

Country Link
GB (1) GB557631A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109442512A (en) * 2018-10-31 2019-03-08 郑浩 A kind of kitchen ventilator pipe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109442512A (en) * 2018-10-31 2019-03-08 郑浩 A kind of kitchen ventilator pipe

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