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GB304222A - Improvements in or relating to thermionic valve circuits - Google Patents

Improvements in or relating to thermionic valve circuits

Info

Publication number
GB304222A
GB304222A GB2755927A GB2755927A GB304222A GB 304222 A GB304222 A GB 304222A GB 2755927 A GB2755927 A GB 2755927A GB 2755927 A GB2755927 A GB 2755927A GB 304222 A GB304222 A GB 304222A
Authority
GB
United Kingdom
Prior art keywords
contacts
circuit
rectifier
resilient members
charging
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
GB2755927A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Priority to GB2755927A priority Critical patent/GB304222A/en
Priority to FR659177D priority patent/FR659177A/en
Publication of GB304222A publication Critical patent/GB304222A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
    • H01H19/56—Angularly-movable actuating part carrying contacts, e.g. drum switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
    • H01H19/56—Angularly-movable actuating part carrying contacts, e.g. drum switch
    • H01H19/58—Angularly-movable actuating part carrying contacts, e.g. drum switch having only axial contact pressure, e.g. disc switch, wafer switch

Landscapes

  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

304,222. Dicker, S. G. S., (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Oct. 17, 1927. Systems of charging and discharging galvanic batteries.- In a circuit including a wireless receiving set R, a high-tension unit P and a rectifier G for charging a lowtension accumulator A, a switch disconnects the rectifier from the supply mains and simultaneously connects the high-tension unit to the mains, and conversely, and the filament circuit is completed at the same time. The switch is constructed with plug sockets 1, 2 for connection, not shown, to the primary of a transformer in the rectifier. Six contacts 3 - - 8 are connected up as shown and resilient members are mounted on five 3 - - 7 of the contacts (Fig. 2, not shown). Two contact members in one position short-circuit the resilient members on contacts 4, 5 and 6, 7 and in the other position short-circuit resilient members on contacts 3, 4.
GB2755927A 1927-10-17 1927-10-17 Improvements in or relating to thermionic valve circuits Expired GB304222A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2755927A GB304222A (en) 1927-10-17 1927-10-17 Improvements in or relating to thermionic valve circuits
FR659177D FR659177A (en) 1927-10-17 1928-08-20 Coupling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2755927A GB304222A (en) 1927-10-17 1927-10-17 Improvements in or relating to thermionic valve circuits

Publications (1)

Publication Number Publication Date
GB304222A true GB304222A (en) 1929-01-17

Family

ID=10261577

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2755927A Expired GB304222A (en) 1927-10-17 1927-10-17 Improvements in or relating to thermionic valve circuits

Country Status (2)

Country Link
FR (1) FR659177A (en)
GB (1) GB304222A (en)

Also Published As

Publication number Publication date
FR659177A (en) 1929-06-25

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