FR421575A - Device for preserving motion pictures from inflammation by means of a ventilation-based mechanism - Google Patents

Device for preserving motion pictures from inflammation by means of a ventilation-based mechanism

Info

Publication number
FR421575A
FR421575A FR421575DA FR421575A FR 421575 A FR421575 A FR 421575A FR 421575D A FR421575D A FR 421575DA FR 421575 A FR421575 A FR 421575A
Authority
FR
France
Prior art keywords
inflammation
ventilation
motion pictures
based mechanism
preserving motion
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
Other languages
French (fr)
Inventor
Paul Prouvot
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.)
PAUL PROUVOT
Original Assignee
PAUL PROUVOT
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 PAUL PROUVOT filed Critical PAUL PROUVOT
Application granted granted Critical
Publication of FR421575A publication Critical patent/FR421575A/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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/16—Cooling; Preventing overheating

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR421575D 1909-12-24 1909-12-24 Device for preserving motion pictures from inflammation by means of a ventilation-based mechanism Expired FR421575A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR421575T 1909-12-24

Publications (1)

Publication Number Publication Date
FR421575A true FR421575A (en) 1911-02-25

Family

ID=1464610

Family Applications (1)

Application Number Title Priority Date Filing Date
FR421575D Expired FR421575A (en) 1909-12-24 1909-12-24 Device for preserving motion pictures from inflammation by means of a ventilation-based mechanism

Country Status (1)

Country Link
FR (1) FR421575A (en)

Similar Documents

Publication Publication Date Title
FR421575A (en) Device for preserving motion pictures from inflammation by means of a ventilation-based mechanism
FR518916A (en) Sealing device of a machine shaft by means of a stop liquid
CH61718A (en) Device for the simultaneous control of a phonograph and a cinematograph by means of a motor acting by gravity
FR405177A (en) Aircraft lifter device
ES45094A1 (en) A device called "San Clemente Lobster Killer".
FR405798A (en) Stop device for locks, which can be released by an electromagnet
FR389699A (en) Intermittent drive mechanism for non-perforated cinematographic films
FR409500A (en) Device for opening the curtains when opening a window
FR10983E (en) Packaging system for motion pictures
FR396931A (en) Double irreversible control device for the operation of two independent parts by means of a single control part
FR417088A (en) Cooling device for turbo-compressors
FR12580E (en) Mechanical device for the progressive and successive control of two independent levers by a single drive lever
FR420595A (en) Focusing device for photographic film
FR374184A (en) Actuation device for oscillating bells
FR426933A (en) Device for catching post bags on the fly
FR400664A (en) Airplane device
FR10458E (en) Auto-bogie motor device for vehicles
FR428941A (en) Self-adjusting device for automatic lengthening of the slides of piston instruments
FR394751A (en) Device for sterilizing air by means of electricity
FR413994A (en) Device for purifying or purging the threads by means of small rotating purifying rollers
CH48384A (en) Device indicating the unwinding of the spring in watch movements
FR377935A (en) Device for opening an envelope by means of an inner thread
CH68339A (en) Device for winding motion picture film
FR414364A (en) Device for shooting without projectile
FR399619A (en) Device for operating two-part draw curtains