FR1445775A - Différentiel, notamment pour la transmission des paramètres d'exposition dans les appareils photographiques - Google Patents

Différentiel, notamment pour la transmission des paramètres d'exposition dans les appareils photographiques

Info

Publication number
FR1445775A
FR1445775A FR20428A FR20428A FR1445775A FR 1445775 A FR1445775 A FR 1445775A FR 20428 A FR20428 A FR 20428A FR 20428 A FR20428 A FR 20428A FR 1445775 A FR1445775 A FR 1445775A
Authority
FR
France
Prior art keywords
cameras
differential
transmission
exposure parameters
exposure
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
FR20428A
Other languages
English (en)
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.)
Ernst & Wilhelm Bertram Fa
Original Assignee
Ernst & Wilhelm Bertram Fa
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 Ernst & Wilhelm Bertram Fa filed Critical Ernst & Wilhelm Bertram Fa
Application granted granted Critical
Publication of FR1445775A publication Critical patent/FR1445775A/fr
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
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • G03B7/003—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly setting of both shutter and diaphragm
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/001—Extraction of waste gases, collection of fumes and hoods used therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/001—Extraction of waste gases, collection of fumes and hoods used therefor
    • F27D17/003—Extraction of waste gases, collection of fumes and hoods used therefor of waste gases emanating from an electric arc furnace
    • 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
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • 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
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/58—Means for varying duration of "open" period of shutter
    • 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
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20207—Multiple controlling elements for single controlled element

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transmission Devices (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Retarders (AREA)
FR20428A 1964-06-11 1965-06-11 Différentiel, notamment pour la transmission des paramètres d'exposition dans les appareils photographiques Expired FR1445775A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1964B0077209 DE1447341A1 (de) 1964-06-11 1964-06-11 Differentialvorrichtung,insbesondere zum UEbertragen von Belichtungseinflussgroessen bei photographischen Kameras

Publications (1)

Publication Number Publication Date
FR1445775A true FR1445775A (fr) 1966-07-15

Family

ID=6979374

Family Applications (1)

Application Number Title Priority Date Filing Date
FR20428A Expired FR1445775A (fr) 1964-06-11 1965-06-11 Différentiel, notamment pour la transmission des paramètres d'exposition dans les appareils photographiques

Country Status (8)

Country Link
US (2) US3415175A (fr)
AT (1) AT257348B (fr)
BE (1) BE665298A (fr)
CH (1) CH430432A (fr)
DE (1) DE1447341A1 (fr)
FR (1) FR1445775A (fr)
GB (1) GB1104384A (fr)
NL (1) NL6507461A (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3756582A (en) * 1971-10-01 1973-09-04 Hawley Manufacturing Corp Exhaust and charging hood for tilting furnace
US3822872A (en) * 1973-04-16 1974-07-09 D Nell Apparatus for collecting and extracting furnace fumes
US3918691A (en) * 1974-05-28 1975-11-11 Hawley Manufacturing Corp Recoil system for furnace charger
SE7614284L (sv) * 1976-12-20 1978-06-21 American Air Filter Co Anordning for uppfangande och bortledande av rokgaser fran en smeltugnsanleggning
US4177975A (en) * 1978-06-14 1979-12-11 Louis A. Grant, Inc. Exhaust hood apparatus with tilting furnace
MX2020010939A (es) * 2018-07-17 2020-11-06 Systems Spray Cooled Inc Horno metalurgico que tiene una campana de efluente gaseoso integrada.
ES2962819T3 (es) * 2020-08-20 2024-03-21 Abp Induction Systems Gmbh Instalación para el reciclaje de chatarra contaminada

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH198255A (de) * 1936-10-24 1938-06-15 Metallgesellschaft Ag Einrichtung zum Auffangen und Absaugen der Abgase an staubhaltige Gase oder Dämpfe erzeugenden Schmelzanlagen, insbesondere Elektroschmelzöfen.
US2610614A (en) * 1947-07-25 1952-09-16 American Steel Foundries Servo control for fluid motors
US2929307A (en) * 1954-01-13 1960-03-22 Voigtlaender Ag Adjusting device for photographic cameras
US2862701A (en) * 1955-08-29 1958-12-02 Pennsylvania Engineering Corp Exhausting apparatus
US2917984A (en) * 1956-03-01 1959-12-22 Voigtlaender Ag Device for the adjustment of exposure values in photographic cameras
US2908737A (en) * 1957-02-08 1959-10-13 Dominicis Giovanni De Smoke suction installation for electric metal melting furnaces
FR1223518A (fr) * 1959-01-28 1960-06-17 Siderurgie Fse Inst Rech Procédé de refroidissement et d'évacuation des gaz chauds provenant d'affinage pneumatique des fontes notamment avec emploi d'oxygène pur
US3205810A (en) * 1962-09-04 1965-09-14 Inland Steel Co Adjustable hood construction for metallurgical furnace
US3269716A (en) * 1962-11-26 1966-08-30 Kaiser Ind Corp Steel conversion vessel

Also Published As

Publication number Publication date
NL6507461A (fr) 1965-12-13
CH430432A (de) 1967-02-15
BE665298A (fr) 1965-10-01
AT257348B (de) 1967-10-10
DE1447341A1 (de) 1969-01-23
US3415175A (en) 1968-12-10
GB1104384A (en) 1968-02-28
US3415179A (en) 1968-12-10

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