GB756438A - Improvements in or relating to electric lighting fittings - Google Patents

Improvements in or relating to electric lighting fittings

Info

Publication number
GB756438A
GB756438A GB12134/53A GB1213453A GB756438A GB 756438 A GB756438 A GB 756438A GB 12134/53 A GB12134/53 A GB 12134/53A GB 1213453 A GB1213453 A GB 1213453A GB 756438 A GB756438 A GB 756438A
Authority
GB
United Kingdom
Prior art keywords
wing nut
bolt
channel member
spring
jaws
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
GB12134/53A
Inventor
Herbert Lionel Smith
John James Fenn
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.)
Benjamin Electric Ltd
Original Assignee
Benjamin Electric 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 Benjamin Electric Ltd filed Critical Benjamin Electric Ltd
Priority to GB12134/53A priority Critical patent/GB756438A/en
Publication of GB756438A publication Critical patent/GB756438A/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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/18—Latch-type fastening, e.g. with rotary action
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

756,438. Screw fastenings. BENJAMIN ELECTRIC, Ltd. April 28, 1954 (May 1, 1953; June 4, 1953; Oct. 19, 1953], Nos. 12134/53; 15427/53 and 28786/53. Class 44. (Also in Group XI] A device for holding together a reflector 2 and a channel member 1 of a lighting fitting comprises a wing nut 7 adapted to screw on to a bolt 6 in the channel member 1, and having a pair of spring jaws 10, 11 for engaging flats 16 on the bolt in the relative angular position of wing nut and bolt in which the wing nut can pass through an elongated hole 2a in the reflector. The wing nut is also held in a second angular position relative to the bolt in which it engages the sides of the elongated hole 2a by a pressure pad 27 adjacent the hole. In a modified construction the spring jaws are either secured to a stay in the channel member 1 or to the bolt 6 and the jaws engage flats on the wing nut. In the further modification shown in Fig. 4, a wing nut 35 screws on to a bolt 30 in the channel member and a projection 37 on the wing nut engages in recesses 36 in a spring- urged catch plate 31 slidably mounted on the bolt and prevented from rotating by projections thereon engaging in slots in the arms 32 of a U-shaped bracket 33 secured to the channel member. The wing nut may be held by the catch plate in two positions ninety degrees apart.
GB12134/53A 1953-05-01 1953-05-01 Improvements in or relating to electric lighting fittings Expired GB756438A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB12134/53A GB756438A (en) 1953-05-01 1953-05-01 Improvements in or relating to electric lighting fittings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB12134/53A GB756438A (en) 1953-05-01 1953-05-01 Improvements in or relating to electric lighting fittings

Publications (1)

Publication Number Publication Date
GB756438A true GB756438A (en) 1956-09-05

Family

ID=9998965

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12134/53A Expired GB756438A (en) 1953-05-01 1953-05-01 Improvements in or relating to electric lighting fittings

Country Status (1)

Country Link
GB (1) GB756438A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2839327A1 (en) * 1978-09-09 1980-03-13 Licentia Gmbh Fluorescent lamp light fitting fastener - consists of ceiling bracket with two spindles rotated half turn, with locking action

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2839327A1 (en) * 1978-09-09 1980-03-13 Licentia Gmbh Fluorescent lamp light fitting fastener - consists of ceiling bracket with two spindles rotated half turn, with locking action

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