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GB541893A - Improvements relating to the manufacture of selenium rectifiers - Google Patents

Improvements relating to the manufacture of selenium rectifiers

Info

Publication number
GB541893A
GB541893A GB10393/40A GB1039340A GB541893A GB 541893 A GB541893 A GB 541893A GB 10393/40 A GB10393/40 A GB 10393/40A GB 1039340 A GB1039340 A GB 1039340A GB 541893 A GB541893 A GB 541893A
Authority
GB
United Kingdom
Prior art keywords
manufacture
improvements relating
selenium rectifiers
selenium
rectifiers
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
GB10393/40A
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.)
Siemens Mobility Ltd
Original Assignee
Westinghouse Brake and Signal 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 Westinghouse Brake and Signal Co Ltd filed Critical Westinghouse Brake and Signal Co Ltd
Priority to GB10393/40A priority Critical patent/GB541893A/en
Publication of GB541893A publication Critical patent/GB541893A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D48/00—Individual devices not covered by groups H10D1/00 - H10D44/00
    • H10D48/01—Manufacture or treatment
    • H10D48/04—Manufacture or treatment of devices having bodies comprising selenium or tellurium in uncombined form
    • H10D48/043—Preliminary treatment of the selenium or tellurium, its application to foundation plates or the subsequent treatment of the combination

Landscapes

  • Synchronous Machinery (AREA)

Abstract

541,893. Asymmetrically-conducting resistances. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., and THOMPSON, L. E. June 14, 1940, No. 10393. Addition to 529,791. [Class 37] The selenium powder used in the process of the parent Specification has thallium added, preferably in the form of thallium chloride.
GB10393/40A 1940-06-14 1940-06-14 Improvements relating to the manufacture of selenium rectifiers Expired GB541893A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB10393/40A GB541893A (en) 1940-06-14 1940-06-14 Improvements relating to the manufacture of selenium rectifiers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB10393/40A GB541893A (en) 1940-06-14 1940-06-14 Improvements relating to the manufacture of selenium rectifiers

Publications (1)

Publication Number Publication Date
GB541893A true GB541893A (en) 1941-12-16

Family

ID=9966998

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10393/40A Expired GB541893A (en) 1940-06-14 1940-06-14 Improvements relating to the manufacture of selenium rectifiers

Country Status (1)

Country Link
GB (1) GB541893A (en)

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