US1625619A - Electric lamp for cinematographic apparatus - Google Patents

Electric lamp for cinematographic apparatus Download PDF

Info

Publication number: US1625619A
Authority: US; United States
Prior art keywords: lamp; socket; filament; electric lamp; cinematographic apparatus
Prior art date: 1921-12-05
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 - Lifetime

Application number

US580507A

Other languages

English (en)

Inventor

Marette Jacques

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

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.)

1921-12-05

Filing date

1922-08-08

Publication date

1927-04-19

1922-08-08 Application filed by Individual filed Critical Individual

1927-04-19 Application granted granted Critical

1927-04-19 Publication of US1625619A publication Critical patent/US1625619A/en

1944-04-19 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

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238000010276 construction Methods 0.000 description 1
230000000694 effects Effects 0.000 description 1
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238000000034 method Methods 0.000 description 1

Images

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
- H01R33/05—Two-pole devices
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/42—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp
- H01K1/46—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp supported by a separate part, e.g. base, cap
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/16—Joints and connections with adjunctive protector, broken parts retainer, repair, assembly or disassembly feature
- Y10T403/1616—Position or guide means

Definitions

This invention has for its object an im-] movement in electric lamps for cinematographic apparatus and other projection aplamp in its socket.
paratus particularly for those which are 5 intended -to be manipulated by a public of amateurs, this improvement permitting to obtain an exact position in height and in orientation of thefilament of the lamp with reference to the opticalzsyst'em of the apparatus', lenses and mirror or analo ous system, with a view of working in the est con ditions of luminous efliciency without having to carry out a precise'adjustme'nt, for example by projecting the filament upon the projection cult especially ior the public which is generally inexperienced.
the fittin of the lamp is provided with a ring or ike part adapted to rest upon the lamp socket and placed in sucha position as toensure the correct position of the lamp filament as to height, said.
the socket which will receive the lamp inthe projectionapparatus has a fixed position suitab y determined with reference to the optical elements of the apparatus, and since each ring is secured at the factory upon the fitting of each lampex actl m'the .desired posltion and thelug' or pro ection is located on the ring in the exact position desired,.with respect to the filament of said lamp, it will-be understood that it is'thus possible to sell to the public lamps which will be interchangeable and it will he suflicient to place into the'lamp socket.
any lamp constructed in accordancewith the invention and the filamentof said lamp will immediately occupy the position requ1red without' any previousfilament being immediately. in alignment w1th the optical axis, at, the;
Fig. 1 is adiagrammatical view ota screen, which operation is difli-' g beingprovided with like memberadapted to jection apparatus with the improved lamp. according to the invention.
Fig. 2 is aview on a large scale of the 55.
Fig. 3 is the section of the socket accord- According to the form of construction represented, one secures to the base or fittin H60,
a split ring 1 providedwit a tenon,-lug or projection 2.
This ring can be secured to the base 4-by means of a screw 6 or a soldered place or by any other means.
the positiomto be occupied by the splitring provided'with its tenon is determined by a I previous adjustment (0 made at the factory. It is thusseen that mjorder to put the lamp in placein the socket, it is required to turn it so that the tenon shall engage in the slot, which will.
the socket 3 occuies the desired position'in its carrier so t at its filament is in alignment with the optical system.
the method of attaching the ring to the lamp base may beabsolutely of any kind.
the form of thegtenon ismot limited to the one shown: infthe drawi'n the device can be applied-toall t peso electric'1an1ps.
' lightiiig device for pro ection apparatus comprising an ordinary glow-lamp, a ring the lower part of said cap and adapted to secured to thecap of said 1am and adapted engage into a recess provided in said, lampto rest with its lower edge on t e upper edge socket for ensuring automatically the exact 10 of the lamp-socket for ensuring automatiangular position of said filament.

Landscapes

Fastening Of Light Sources Or Lamp Holders (AREA)
Non-Portable Lighting Devices Or Systems Thereof (AREA)

US580507A 1921-12-05 1922-08-08 Electric lamp for cinematographic apparatus Expired - Lifetime US1625619A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR386528X		1921-12-05

Publications (1)

Publication Number	Publication Date
US1625619A true US1625619A (en)	1927-04-19

Family

ID=8895753

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
US580507A Expired - Lifetime US1625619A (en)	1921-12-05	1922-08-08	Electric lamp for cinematographic apparatus

Country Status (3)

Country	Link
US (1)	US1625619A (fr)
DE (2)	DE386528C (fr)
FR (1)	FR544743A (fr)

1921
- 1921-12-05 FR FR544743D patent/FR544743A/fr not_active Expired
1922
- 1922-07-07 DE DEP44551D patent/DE386528C/de not_active Expired
- 1922-08-08 US US580507A patent/US1625619A/en not_active Expired - Lifetime
1924
- 1924-02-12 DE DEP47474D patent/DE404308C/de not_active Expired

Also Published As

Publication number	Publication date
FR544743A (fr)	1922-09-27
DE404308C (de)	1924-10-18
DE386528C (de)	1923-12-10

Publication	Publication Date	Title
US1625619A (en)	1927-04-19	Electric lamp for cinematographic apparatus
US1760693A (en)	1930-05-27	Prefocused incandescent electric lamp
US1785929A (en)	1930-12-23	Ophthalmic mounting
US2132368A (en)	1938-10-04	Electric lamp and method of manufacture thereof
US2110133A (en)	1938-03-08	Electric lamp unit
US2110135A (en)	1938-03-08	Electric lighting means
US1992041A (en)	1935-02-19	Light projector
US1578358A (en)	1926-03-30	Electric lamp for cinematographic apparatus
US2230853A (en)	1941-02-04	Light signal
US2033699A (en)	1936-03-10	Electric projection lamp
US1566260A (en)	1925-12-15	Light-focusing apparatus
US1558808A (en)	1925-10-27	Lamp bracket
US2055649A (en)	1936-09-29	Incandescent lamp
US1640867A (en)	1927-08-30	Electric incandescent lamp
US1528137A (en)	1925-03-03	Arrangement for facilitating the adjustment of lamps
US2004201A (en)	1935-06-11	Lamp socket adapter
US1979968A (en)	1934-11-06	Electric projection lamp
US1658446A (en)	1928-02-07	Bulb adapter for signal lamps
US3366784A (en)	1968-01-30	Quartz lamp light source for existing spotlight apparatus, with terminal mounting means to accomplish focusing position
US2063090A (en)	1936-12-08	Electric lamp and mounting therefor
US1605519A (en)	1926-11-02	Assembling fixture for color light signals
US1703626A (en)	1929-02-26	Lamp-bulb socket
US1975353A (en)	1934-10-02	Lamp assembly means
GB293377A (en)	1928-07-05	Improvements in vehicle head lamps
US1739179A (en)	1929-12-10	Headlight