[go: up one dir, main page]

DE542737C - Drum lock with fire protection flaps on the inside for cinema playback machines - Google Patents

Drum lock with fire protection flaps on the inside for cinema playback machines

Info

Publication number
DE542737C
DE542737C DENDAT542737D DE542737DD DE542737C DE 542737 C DE542737 C DE 542737C DE NDAT542737 D DENDAT542737 D DE NDAT542737D DE 542737D D DE542737D D DE 542737DD DE 542737 C DE542737 C DE 542737C
Authority
DE
Germany
Prior art keywords
flaps
fire protection
drum lock
protection flaps
playback machines
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
DENDAT542737D
Other languages
German (de)
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.)
Zeiss Ikon AG
Original Assignee
Zeiss Ikon AG
Publication date
Application granted granted Critical
Publication of DE542737C publication Critical patent/DE542737C/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
    • G03B21/18—Fire preventing or extinguishing

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Special Wing (AREA)

Description

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (2)

Patentansprüche:Patent claims: 1. Trommelverschluß mit im Innern angeordneten Feuerschutzklappen für Kinomaschinen, dadurch gekennzeichnet, daß am inneren Umfang der Trommel (1) an geeigneter Stelle Dämpfungsmittel, z. B. Federn(2), angebracht sind, gegen die sich beim Betriebe des Apparates die Feuerschutzklappen (3) legen.1.Drum lock with internal fire protection flaps for cinema machines, characterized in that on the inner circumference of the drum (1) at a suitable Place damping means, e.g. B. springs (2) are attached, against which the fire flaps are when the apparatus is in operation (3) lay. 2. Trommelverschluß mit im Innern angeordneten Feuerschutzklappen, dadurch gekennzeichnet, daß die Innenseiten der Feuerschutzklappen (3) mit Federn (4) versehen sind, so daß das Zusammenschlagen der Klappen (3) federnd erfolgt.2. Drum lock with fire flaps arranged inside, characterized in that that the insides of the fire flaps (3) are provided with springs (4) so that the collapse of the Flaps (3) takes place resiliently.
DENDAT542737D Drum lock with fire protection flaps on the inside for cinema playback machines Expired DE542737C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE542737T

Publications (1)

Publication Number Publication Date
DE542737C true DE542737C (en) 1932-01-28

Family

ID=6559784

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT542737D Expired DE542737C (en) Drum lock with fire protection flaps on the inside for cinema playback machines

Country Status (1)

Country Link
DE (1) DE542737C (en)

Similar Documents

Publication Publication Date Title
DE542737C (en) Drum lock with fire protection flaps on the inside for cinema playback machines
CH212448A (en) Device for cushioning the extractor on firearms.
US1955764A (en) Winding machine
GB228577A (en) Improvements in stroboscopic apparatus
SU75756A1 (en) A device for mounting valves on the pneumatic chamber
SU30689A1 (en) Method for producing phenols from chlorophenols
CH174695A (en) Gun carriage with opening arrows, with elastic suspension for rolling.
US1979332A (en) Lighting device
SU7337A1 (en) Car axle with a device for lubricating the axle
FR786447A (en) Force transmission mechanism comprising a device for automatically varying the transmission ratio
CH256742A (en) Device on motor vehicles for shifting the transmission.
SU40194A1 (en) Rigging fixture with two mirrors for a rifle
SU26464A1 (en) Gas analyzer
CH153664A (en) Device on railway car axle bushes for pressing the dust sealing disc against a dust chamber wall.
CA284436A (en) Device for copying on machine tools
CH219391A (en) Tensioning device on winding machines and the like.
CA387789A (en) Shock absorber for bicycles, etc.
CH157369A (en) Device for disengaging the firing pin safety on machine guns.
BE416558A (en) Improvements in fluid transmission mechanisms, rotary machines and the like
DK66294C (en) PROCEDURE FOR REGULATING A PERIODICALLY OPERATING ABSORPTION COOLING MACHINE AND DEVICE FOR SUCH MACHINES FOR PERFORMING THE PROCEDURE.
DK48397C (en) Shock absorption device for negative pressure motors.
ES121443A1 (en) A spring motor, at constant tension.
DK50377C (en) Shock absorption device for negative pressure motors.
FR700548A (en) Automatically operating absorption refrigeration machine
ES131021A1 (en) A device for the checking and adjustment of the brakes of vehicles, especially automobiles.