GB270297A - Electric lamp for cinematographic apparatus - Google Patents

Electric lamp for cinematographic apparatus

Info

Publication number
GB270297A
GB270297A GB11154/27A GB1115427A GB270297A GB 270297 A GB270297 A GB 270297A GB 11154/27 A GB11154/27 A GB 11154/27A GB 1115427 A GB1115427 A GB 1115427A GB 270297 A GB270297 A GB 270297A
Authority
GB
United Kingdom
Prior art keywords
guideway
lantern
filament
secured
screw
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
GB11154/27A
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.)
Pathe Cinema SA
Original Assignee
Pathe Cinema SA
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 Pathe Cinema SA filed Critical Pathe Cinema SA
Publication of GB270297A publication Critical patent/GB270297A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/28—Locating light-sensitive material within camera
    • G03B17/32—Locating plates or cut films
    • G03B17/34—Changing plates or cut films
    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/02—Fastening of light sources or lamp holders with provision for adjustment, e.g. for focusing
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2046—Positional adjustment of light sources

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

270,297. PathÚ Cinema, Anciens Etablissements PathÚ FrÞres. May 3, 1926, [Convention date]. Holders.-In cinematograph or other projecting lanterns provided with cooperating means that ensure the accurate location of the filament with respect to the lens, a ring 8 having a radial projection 9 is secured to the cap 7, which may be of screw, bayonet, or other type, and a guideway 10 is formed in the lantern bodv and in an attached member 11 for the reception of the projection 9, the end of the guideway determining the position of the filament in the lantern. The guideway 10 may extend either from the top or bottom of the fitting. The holder 13 in which the bulb is mounted is secured in a clamp comprising a split ring 16 fitted with a clamping-screw 21. Specification 189,743 is referred to.
GB11154/27A 1926-05-03 1927-04-26 Electric lamp for cinematographic apparatus Expired GB270297A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR615563T 1926-05-03

Publications (1)

Publication Number Publication Date
GB270297A true GB270297A (en) 1927-10-06

Family

ID=8980999

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11154/27A Expired GB270297A (en) 1926-05-03 1927-04-26 Electric lamp for cinematographic apparatus

Country Status (4)

Country Link
CH (1) CH125987A (en)
DE (1) DE478118C (en)
FR (1) FR615563A (en)
GB (1) GB270297A (en)

Also Published As

Publication number Publication date
DE478118C (en) 1929-06-18
FR615563A (en) 1927-01-11
CH125987A (en) 1928-06-01

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