GB1415841A - Lampholder contact mechanism - Google Patents

Lampholder contact mechanism

Info

Publication number
GB1415841A
GB1415841A GB123172*[A GB123172A GB1415841A GB 1415841 A GB1415841 A GB 1415841A GB 123172 A GB123172 A GB 123172A GB 1415841 A GB1415841 A GB 1415841A
Authority
GB
United Kingdom
Prior art keywords
casing
partly
plunger
stop
spring
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
GB123172*[A
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.)
Imperial Metal Industries Kynoch Ltd
Original Assignee
Imperial Metal Industries Kynoch 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 Imperial Metal Industries Kynoch Ltd filed Critical Imperial Metal Industries Kynoch Ltd
Priority to GB123172*[A priority Critical patent/GB1415841A/en
Priority to IT33846/72A priority patent/IT973142B/en
Priority to FR7300699A priority patent/FR2167877B1/fr
Priority to DE2301274A priority patent/DE2301274A1/en
Publication of GB1415841A publication Critical patent/GB1415841A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/05—Two-pole devices
    • H01R33/46—Two-pole devices for bayonet type base
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2407—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means
    • H01R13/2421—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means using coil springs

Landscapes

  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

1415841 Lampholder contacts IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd 20 Dec 1972 [11 Jan 1972] 1231/72 Heading H2E [Also in Division B3] A mechanism (e.g. for electrical contact in a bayonet-cap lampholder) comprises a pressed cylindrical metal casing 1; a pressed metallic plunger 3 telescopically disposed partly within the casing 1; a hollow pressed cylindrical metallic stop 2 retained within a first end of the casing 1; and a spring 4 urging the plunger 2 towards the partly-closed, second end 11 of the casing 1, the plunger 2 having obturating means 10 engageable with the partly-closed second end 11. A first method of assembly comprises fastening the stop 2 at the first end of the casing 1 by press-fitting or by partly closing the first end; inserting the spring 4 and plunger 3 through the initially-open second end of the casing 1; and partly closing the second end to form the lip 11 illustrated. An alternative method of assembly comprises passing the plunger 3 and spacing 4 through the initially -open first end of the casing 1 towards the partly-closed end 11; inserting the stop 2 in the first end; and fastening the stop 2 either by a press fit or by partly closing the first end of the casing 1. The cylindrical members 1, 2 and 3 may be of brass or steel, and the spring may be of stainless or non-stainless steel, phosphor bronze or beryllium copper. A screw 5 may be provided for clamping a wire inserted into the cavity 7 through the first end 8. Alternatively a screw may pass into the first end 8 and threadably engage the end of the member 2, now inverted, to clamp a wire inserted through a hole in the side of the easing 1 near the first end. Instead of a screw connection, a tag may be struck up from the lip 8.
GB123172*[A 1972-01-11 1972-01-11 Lampholder contact mechanism Expired GB1415841A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB123172*[A GB1415841A (en) 1972-01-11 1972-01-11 Lampholder contact mechanism
IT33846/72A IT973142B (en) 1972-01-11 1972-12-29 CONTROL MECHANISM FOR LAMP HOLDER
FR7300699A FR2167877B1 (en) 1972-01-11 1973-01-10
DE2301274A DE2301274A1 (en) 1972-01-11 1973-01-11 CONTACT MECHANISM FOR LAMP SOCKETS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB123172*[A GB1415841A (en) 1972-01-11 1972-01-11 Lampholder contact mechanism

Publications (1)

Publication Number Publication Date
GB1415841A true GB1415841A (en) 1975-11-26

Family

ID=9718403

Family Applications (1)

Application Number Title Priority Date Filing Date
GB123172*[A Expired GB1415841A (en) 1972-01-11 1972-01-11 Lampholder contact mechanism

Country Status (4)

Country Link
DE (1) DE2301274A1 (en)
FR (1) FR2167877B1 (en)
GB (1) GB1415841A (en)
IT (1) IT973142B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2214005A (en) * 1987-12-21 1989-08-23 On Tat Bakelite Electric Works Light bulb holder
GB2307112A (en) * 1995-11-06 1997-05-14 Stephen William Chamberlain Insulated lampholder pin

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1586506A (en) * 1921-08-31 1926-05-25 Metal Specialties Mfg Co Electrical connecter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2214005A (en) * 1987-12-21 1989-08-23 On Tat Bakelite Electric Works Light bulb holder
GB2307112A (en) * 1995-11-06 1997-05-14 Stephen William Chamberlain Insulated lampholder pin

Also Published As

Publication number Publication date
FR2167877A1 (en) 1973-08-24
IT973142B (en) 1974-06-10
DE2301274A1 (en) 1973-08-02
FR2167877B1 (en) 1976-08-27

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Legal Events

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