GB256879A - Improvements in or relating to arc lamps - Google Patents

Improvements in or relating to arc lamps

Info

Publication number
GB256879A
GB256879A GB669726A GB669726A GB256879A GB 256879 A GB256879 A GB 256879A GB 669726 A GB669726 A GB 669726A GB 669726 A GB669726 A GB 669726A GB 256879 A GB256879 A GB 256879A
Authority
GB
United Kingdom
Prior art keywords
projector
arc lamps
relating
electrodes
carrier
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
GB669726A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB669726A priority Critical patent/GB256879A/en
Publication of GB256879A publication Critical patent/GB256879A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B31/00—Electric arc lamps
    • H05B31/003—Electric arc lamps of a special type
    • H05B31/0036—Electric arc lamps of a special type for projection, copying or stage lighting

Landscapes

  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

256,879. Steinberg, E. June 12, 1925. Arc lamps.-In a light-projector having arcelectrodes parallel to the optical axis, the optical system and the carrier of the electrodes are relatively adjustable to compensate for the consumption of the electrodes. In one arrangement the carrier,which may be adjusted by hand, slides in guides parallel to the axis of the lens system of the projector. In another projector, the carbons 2 are stationary and a reflector 13 is adjustable by means of a sliding stem 12 which is graduated in terms of time of burning. The arc may be struck as described in Specification 251,129.
GB669726A 1925-06-12 1925-06-12 Improvements in or relating to arc lamps Expired GB256879A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB669726A GB256879A (en) 1925-06-12 1925-06-12 Improvements in or relating to arc lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB669726A GB256879A (en) 1925-06-12 1925-06-12 Improvements in or relating to arc lamps

Publications (1)

Publication Number Publication Date
GB256879A true GB256879A (en) 1926-08-19

Family

ID=9819144

Family Applications (1)

Application Number Title Priority Date Filing Date
GB669726A Expired GB256879A (en) 1925-06-12 1925-06-12 Improvements in or relating to arc lamps

Country Status (1)

Country Link
GB (1) GB256879A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5345250A (en) * 1988-09-29 1994-09-06 Canon Kabushiki Kaisha Data processing system and apparatus and display system with image information memory control

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5345250A (en) * 1988-09-29 1994-09-06 Canon Kabushiki Kaisha Data processing system and apparatus and display system with image information memory control

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