GB506266A - Improvements in or relating to lighting fittings - Google Patents

Improvements in or relating to lighting fittings

Info

Publication number
GB506266A
GB506266A GB3215837A GB3215837A GB506266A GB 506266 A GB506266 A GB 506266A GB 3215837 A GB3215837 A GB 3215837A GB 3215837 A GB3215837 A GB 3215837A GB 506266 A GB506266 A GB 506266A
Authority
GB
United Kingdom
Prior art keywords
pulleys
rail
pair
relating
collectors
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
GB3215837A
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 ERNEST WALLER
Original Assignee
FRANK ERNEST WALLER
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 ERNEST WALLER filed Critical FRANK ERNEST WALLER
Priority to GB3215837A priority Critical patent/GB506266A/en
Publication of GB506266A publication Critical patent/GB506266A/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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/34—Supporting elements displaceable along a guiding element

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)

Abstract

506,266. Collectors. WALLER, F. E. Nov. 22, 1937, No. 32158. [Class 38 (i)] [Also in Group XI] In a lighting fitting in which a lamp bracket 9, 10 is carried by a trolley comprising a plate 2, fitted with a pair of pulleys 3 adapted to run along the upper edge of a sheet metal rail 1, and a pair of jockey pulleys 4 engaging the lower edge of the rail under the action of springs 6, the rail 1 may be divided into two' parallel rails, one above the other, insulated from one another, and connected respectively to the poles of an electric current supply, the pulleys 3, 4 serving as current collectors for an electric lamp.
GB3215837A 1937-11-22 1937-11-22 Improvements in or relating to lighting fittings Expired GB506266A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3215837A GB506266A (en) 1937-11-22 1937-11-22 Improvements in or relating to lighting fittings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3215837A GB506266A (en) 1937-11-22 1937-11-22 Improvements in or relating to lighting fittings

Publications (1)

Publication Number Publication Date
GB506266A true GB506266A (en) 1939-05-22

Family

ID=10334197

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3215837A Expired GB506266A (en) 1937-11-22 1937-11-22 Improvements in or relating to lighting fittings

Country Status (1)

Country Link
GB (1) GB506266A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2692748A (en) * 1950-02-16 1954-10-26 Anderson Ralph Andrew Adjutable support
US4714354A (en) * 1984-12-29 1987-12-22 Ricoh Company, Ltd. Support device for travel assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2692748A (en) * 1950-02-16 1954-10-26 Anderson Ralph Andrew Adjutable support
US4714354A (en) * 1984-12-29 1987-12-22 Ricoh Company, Ltd. Support device for travel assembly

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