GB813203A - Improvements relating to electric lamp holder liners and their manufacture - Google Patents

Improvements relating to electric lamp holder liners and their manufacture

Info

Publication number
GB813203A
GB813203A GB3236856A GB3236856A GB813203A GB 813203 A GB813203 A GB 813203A GB 3236856 A GB3236856 A GB 3236856A GB 3236856 A GB3236856 A GB 3236856A GB 813203 A GB813203 A GB 813203A
Authority
GB
United Kingdom
Prior art keywords
bridge
manufacture
tongue
lugs
electric 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
GB3236856A
Inventor
Robert Seymour Cooke
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.)
Howard S Cooke and Co Ltd
Original Assignee
Howard S Cooke and Co Ltd
Filing date
Publication date
Application filed by Howard S Cooke and Co Ltd filed Critical Howard S Cooke and Co Ltd
Publication of GB813203A publication Critical patent/GB813203A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/03—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal otherwise than by folding
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Abstract

813,203. Sheet metal joints. COOKE & CO. Ltd., H. S. Oct. 14, 1957 [Oct. 24, 1956], No. 32368/56. Class 83 (4). [Also in Group XXXVI] The manufacture of an electric lamp-holder liner is characterized in that one end of a sheet metal strip a is provided with a central tongue a2 on a raised portion a<SP>1</SP> which is passed into the forwardly-slit extremity a<SP>4</SP> of a transversely raised bridge part a<SP>3</SP> adjacent the other end of the strip and the tongue is maintained therein by subjecting the united parts to pressure. The shoulder of the bridge part a<SP>3</SP> abuts against the shoulders a<SP>6</SP> of the portion a<SP>1</SP>. In a modification the remote edge of the bridge part is slit at a<SP>7</SP> (Fig. 4), to enable a lengthened tongue provided with locking lugs a<SP>8</SP> to protrude through the bridge a<SP>3</SP>. The slots a<SP>4</SP>, a<SP>7</SP> are increased in length to enable the lugs a<SP>8</SP> to pass through and in the pressing operation parts of the bridge a3 are brought behind the lugs to lock the joint. The bayonet slots b are formed in the strip prior to the jointing operation.
GB3236856A 1956-10-24 Improvements relating to electric lamp holder liners and their manufacture Expired GB813203A (en)

Publications (1)

Publication Number Publication Date
GB813203A true GB813203A (en) 1959-05-13

Family

ID=1742979

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3236856A Expired GB813203A (en) 1956-10-24 Improvements relating to electric lamp holder liners and their manufacture

Country Status (1)

Country Link
GB (1) GB813203A (en)

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