GB536994A - Improvements in or relating to trough reflector fittings for use with linear light sources - Google Patents

Improvements in or relating to trough reflector fittings for use with linear light sources

Info

Publication number
GB536994A
GB536994A GB3651/40A GB365140A GB536994A GB 536994 A GB536994 A GB 536994A GB 3651/40 A GB3651/40 A GB 3651/40A GB 365140 A GB365140 A GB 365140A GB 536994 A GB536994 A GB 536994A
Authority
GB
United Kingdom
Prior art keywords
box
lamps
engaging
reflector
housing
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
GB3651/40A
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.)
JOSEPH STUDHOLME
Benjamin Electric Ltd
Original Assignee
JOSEPH STUDHOLME
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 JOSEPH STUDHOLME, Benjamin Electric Ltd filed Critical JOSEPH STUDHOLME
Priority to GB3651/40A priority Critical patent/GB536994A/en
Publication of GB536994A publication Critical patent/GB536994A/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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F21S8/06—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
    • G01B3/34—Ring or other apertured gauges, e.g. "go/no-go" gauge
    • G01B3/36—Ring or other apertured gauges, e.g. "go/no-go" gauge for external screw-threads
    • 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

Abstract

536,994. Lamps with trough-shaped reflectors. STUDHOLME, J., and BENJAMIN ELECTRIC, Ltd. Feb. 28, 1940, No. 3651. [Classes 75 (ii), 75 (iii) and 75 (iv)] A trough lighting-unit for use with one or more tubular, preferaby fluorescent, lamps comprises a housing A for control accessories such as chokes, condensers and switches, a rigid longitudinal member or box B supporting the housing and serving as a wiring channel, and a troughreflector C detachably secured to the member B. The construction enables the component parts to be conveniently stocked or transported. The preferred construction comprises also the following features:-The housing A is secured by screws to the box B, and the accessories are mounted on the bottom of the box and project through an aperture 1, in the top. The reflector C is connected to the box at the ends and middle the end connections consisting of wing-nuts 5b, Fig. 2 (not shown), and the middle connection consisting of a pivot-stud mounted on the reflector and engaging a key-hole slot in the box, or vice versa. The lamps are supported by feltlined hooks 6a which are connected by hinges 7 to the box. The ends of the lamps are covered by reflector-plates 8 having felt strips 8c and lugs 8d for engaging the lamps, and slots 6c in the hooks 6a respectively. The unit is suspended from rods 10 each carrying a dished washer engaging a stirrup 11 which is formed with slots 11b for engaging screws 14 on the box. Chainlugs 15 are also provided.
GB3651/40A 1940-02-28 1940-02-28 Improvements in or relating to trough reflector fittings for use with linear light sources Expired GB536994A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3651/40A GB536994A (en) 1940-02-28 1940-02-28 Improvements in or relating to trough reflector fittings for use with linear light sources

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3651/40A GB536994A (en) 1940-02-28 1940-02-28 Improvements in or relating to trough reflector fittings for use with linear light sources

Publications (1)

Publication Number Publication Date
GB536994A true GB536994A (en) 1941-06-04

Family

ID=9762344

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3651/40A Expired GB536994A (en) 1940-02-28 1940-02-28 Improvements in or relating to trough reflector fittings for use with linear light sources

Country Status (1)

Country Link
GB (1) GB536994A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2149013A (en) * 1983-09-28 1985-06-05 Shell Electric Mfg Ceiling fans
CN110296356A (en) * 2018-03-22 2019-10-01 深圳市海洋王照明工程有限公司 Illuminator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2149013A (en) * 1983-09-28 1985-06-05 Shell Electric Mfg Ceiling fans
CN110296356A (en) * 2018-03-22 2019-10-01 深圳市海洋王照明工程有限公司 Illuminator

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