GB778072A - Improvements in electrical table lamps - Google Patents

Improvements in electrical table lamps

Info

Publication number
GB778072A
GB778072A GB10486/54A GB1048654A GB778072A GB 778072 A GB778072 A GB 778072A GB 10486/54 A GB10486/54 A GB 10486/54A GB 1048654 A GB1048654 A GB 1048654A GB 778072 A GB778072 A GB 778072A
Authority
GB
United Kingdom
Prior art keywords
core
primary winding
transformers
april
lamp
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
GB10486/54A
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.)
FRANK WALTER HOLLAND
Original Assignee
FRANK WALTER HOLLAND
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 FRANK WALTER HOLLAND filed Critical FRANK WALTER HOLLAND
Priority to GB10486/54A priority Critical patent/GB778072A/en
Publication of GB778072A publication Critical patent/GB778072A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/0004—Personal or domestic articles
    • F21V33/0012—Furniture
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S6/00—Lighting devices intended to be free-standing
    • F21S6/002—Table lamps, e.g. for ambient lighting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/14—Inductive couplings

Abstract

778,072. Supply systems depending on the use of transformers; transformers. HOLLAND, F. W. April 14, 1955 [April 9, 1954], No. 10486/54. Classes 38 (2) and 38 (4). A portable table lamp 4 is operated through a transformer, the secondary winding 7 of which is mounted on a part-core 6 in the base 5 of the lamp standard 2 and which is energized by appropriately placing the base over a corresponding part-core 9 and primary winding 10 secured to the under surface of the table top 1. To prevent excessive current flow in the primary winding when the lamp standard is not in position, the part-core 9 may be provided with a magnetic shunt 12, or the primary winding may be of resistance wire or connected in series with an external resistor or condenser.
GB10486/54A 1954-04-09 1954-04-09 Improvements in electrical table lamps Expired GB778072A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB10486/54A GB778072A (en) 1954-04-09 1954-04-09 Improvements in electrical table lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB10486/54A GB778072A (en) 1954-04-09 1954-04-09 Improvements in electrical table lamps

Publications (1)

Publication Number Publication Date
GB778072A true GB778072A (en) 1957-07-03

Family

ID=9968732

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10486/54A Expired GB778072A (en) 1954-04-09 1954-04-09 Improvements in electrical table lamps

Country Status (1)

Country Link
GB (1) GB778072A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2202414A (en) * 1987-03-10 1988-09-21 Oxley Dev Co Ltd Transmission of power and/or data
GB2210738B (en) * 1987-10-05 1992-03-18 Pitney Bowes Inc Value printing system data storage modules and methods of energising such modules
GB2372380A (en) * 2000-10-27 2002-08-21 Microlights Ltd An electrical lighting system with an inductively coupled power supply
US6742328B2 (en) 2001-10-11 2004-06-01 Southwest Research Institute Systems and methods for controlling diesel engine emissions
WO2004073177A2 (en) * 2003-02-04 2004-08-26 Access Business Group International Llc Inductively powered apparatus
WO2008093334A2 (en) * 2007-01-29 2008-08-07 Powermat Ltd Pinless power coupling
US8188619B2 (en) 2008-07-02 2012-05-29 Powermat Technologies Ltd Non resonant inductive power transmission system and method
US8319925B2 (en) 2008-07-08 2012-11-27 Powermat Technologies, Ltd. Encapsulated pixels for display device
US8373310B2 (en) 2009-01-06 2013-02-12 Access Business Group International Llc Inductive power supply
US8618695B2 (en) 2008-06-02 2013-12-31 Powermat Technologies, Ltd Appliance mounted power outlets
US11387688B2 (en) 2008-07-02 2022-07-12 Powermat Technologies, Ltd. System and method for coded communication signals regulating inductive power transmissions
US11837399B2 (en) 2008-03-17 2023-12-05 Powermat Technologies, Ltd. Transmission-guard system and method for an inductive power supply

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2202414A (en) * 1987-03-10 1988-09-21 Oxley Dev Co Ltd Transmission of power and/or data
GB2210738B (en) * 1987-10-05 1992-03-18 Pitney Bowes Inc Value printing system data storage modules and methods of energising such modules
US8138875B2 (en) 1999-06-21 2012-03-20 Access Business Group International Llc Inductively powered apparatus
GB2372380A (en) * 2000-10-27 2002-08-21 Microlights Ltd An electrical lighting system with an inductively coupled power supply
GB2372380B (en) * 2000-10-27 2003-02-12 Microlights Ltd Improvements in and relating to an electrical lighting system
US6742328B2 (en) 2001-10-11 2004-06-01 Southwest Research Institute Systems and methods for controlling diesel engine emissions
WO2004073177A2 (en) * 2003-02-04 2004-08-26 Access Business Group International Llc Inductively powered apparatus
WO2004073177A3 (en) * 2003-02-04 2004-12-16 Access Business Group Int Llc Inductively powered apparatus
US11114895B2 (en) 2007-01-29 2021-09-07 Powermat Technologies, Ltd. Pinless power coupling
WO2008093334A2 (en) * 2007-01-29 2008-08-07 Powermat Ltd Pinless power coupling
US11881717B2 (en) 2007-01-29 2024-01-23 Powermat Technologies Ltd. Pinless power coupling
US11611240B2 (en) 2007-01-29 2023-03-21 Powermat Technologies Ltd. Pinless power coupling
US11437852B2 (en) 2007-01-29 2022-09-06 Powermat Technologies Ltd. Pinless power coupling
WO2008093334A3 (en) * 2007-01-29 2010-01-28 Powermat Ltd Pinless power coupling
US9666360B2 (en) 2007-01-29 2017-05-30 Powermat Technologies, Ltd. Pinless power coupling
US8629577B2 (en) 2007-01-29 2014-01-14 Powermat Technologies, Ltd Pinless power coupling
US11837399B2 (en) 2008-03-17 2023-12-05 Powermat Technologies, Ltd. Transmission-guard system and method for an inductive power supply
US8618695B2 (en) 2008-06-02 2013-12-31 Powermat Technologies, Ltd Appliance mounted power outlets
US8427012B2 (en) 2008-07-02 2013-04-23 Powermat Technologies, Ltd. Non resonant inductive power transmission system and method
US11387688B2 (en) 2008-07-02 2022-07-12 Powermat Technologies, Ltd. System and method for coded communication signals regulating inductive power transmissions
US8188619B2 (en) 2008-07-02 2012-05-29 Powermat Technologies Ltd Non resonant inductive power transmission system and method
US8319925B2 (en) 2008-07-08 2012-11-27 Powermat Technologies, Ltd. Encapsulated pixels for display device
US8890369B2 (en) 2009-01-06 2014-11-18 Access Business Group International Llc Inductive power supply
US8373310B2 (en) 2009-01-06 2013-02-12 Access Business Group International Llc Inductive power supply

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