GB715113A - Improvements in and relating to lanterns for high pressure metal vapour lamps - Google Patents

Improvements in and relating to lanterns for high pressure metal vapour lamps

Info

Publication number
GB715113A
GB715113A GB6099/50A GB609950A GB715113A GB 715113 A GB715113 A GB 715113A GB 6099/50 A GB6099/50 A GB 6099/50A GB 609950 A GB609950 A GB 609950A GB 715113 A GB715113 A GB 715113A
Authority
GB
United Kingdom
Prior art keywords
lamp
shield
lantern
seal portion
seal
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
GB6099/50A
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.)
WILFRED ARTHUR PRICE
General Electric Co PLC
Original Assignee
WILFRED ARTHUR PRICE
General Electric Co PLC
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 WILFRED ARTHUR PRICE, General Electric Co PLC filed Critical WILFRED ARTHUR PRICE
Priority to GB6099/50A priority Critical patent/GB715113A/en
Publication of GB715113A publication Critical patent/GB715113A/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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

715,113. Electric discharge lamps. GENERAL ELECTRIC CO., Ltd., PRICE, W. A., and WALDRAM, J. M. March 12, 1951 [March 10, 1950], No. 6099/50. Class 39(1) [Also in Group XI] A lantern for a high pressure metal vapour lamp 10 has a shield 42 with an aperture 40 through which a seal portion 16 of the lamp passes, the shield fitting closely around the seal and screening the seal from radiated and/or convected heat from hot parts of the lamp, and the lantern having means such as a further shield 43 to form a duct for directing a stream of cooling gaseous fluid. such as the surrounding air, which has not passed around the hot parts of the lamp, on to the seal portion 19 at the side of the shield 42 remote from the hot parts of the lamp. The shields 42, 43 are preferably made of stainless steel. The shield 42 has packing members 46, 47 of asbestos, fitting closely around the seal portion 16. A treble or multiple shield can be used to form a double or multi-passage duct for cooling gaseous fluid. The lamp may be arranged horizontally and ducts for cooling air arranged vertically, each limb of the lamp being arranged to extend through one such duct. A fan may be used for driving the gaseous fluid over the seal portion. Side flaps on the shield 42, converging deflector plates 49 and an aperture 50 may be provided to improve the cooling effect. The lamp is mounted between conical centres 24 and 25, the lower centre 25 being fixed to a framework consisting a plate 30 carried by the casing 31 of the lantern which is of generally cylindrical form and the upper centre 24 being slidable in a guide 27 under the control of a spring 28. The guide 27 is mounted on a bridgepiece 32 carried by pillars 33 extending upwardly from the plate 30. The lantern may be provided with a spherical mirror 34 arranged behind the bulb of the lamp.
GB6099/50A 1950-03-10 1950-03-10 Improvements in and relating to lanterns for high pressure metal vapour lamps Expired GB715113A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB6099/50A GB715113A (en) 1950-03-10 1950-03-10 Improvements in and relating to lanterns for high pressure metal vapour lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6099/50A GB715113A (en) 1950-03-10 1950-03-10 Improvements in and relating to lanterns for high pressure metal vapour lamps

Publications (1)

Publication Number Publication Date
GB715113A true GB715113A (en) 1954-09-08

Family

ID=9808354

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6099/50A Expired GB715113A (en) 1950-03-10 1950-03-10 Improvements in and relating to lanterns for high pressure metal vapour lamps

Country Status (1)

Country Link
GB (1) GB715113A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2367245A1 (en) * 1976-10-11 1978-05-05 Leitz Ernst Gmbh Reflector cooling installation for lamps - consists of metallic cooling element directly adjoining sections of reflector and fitted with cooling ribs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2367245A1 (en) * 1976-10-11 1978-05-05 Leitz Ernst Gmbh Reflector cooling installation for lamps - consists of metallic cooling element directly adjoining sections of reflector and fitted with cooling ribs

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