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GUSTAV NEDDERMEYER
Original Assignee
GUSTAV NEDDERMEYER
Publication date
Priority to DEN30474DpriorityCriticalpatent/DE526756C/en
Application grantedgrantedCritical
Publication of DE526756CpublicationCriticalpatent/DE526756C/en
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)
Replacement Of Web Rolls
(AREA)
Description
Hierzu ι Blatt ZeichnungenFor this purpose ι sheet of drawings
Claims (1)
Patentanspruch:Claim:Feuerschutzvorrichtung für kinematographische Apparate, bei welcher das eine
Schlaufe bildende Filmband mittels einer Schwenkklappe eine Kontakteinrichtung beeinflußt,
dadurch gekennzeichnet, daß die Schwenkklappe vor einer Kontaktwalze (g),
die auf geneigten Schienen (Ji) frei rollbar ruht, so angeordnet ist. daß bei der Bewegung
der Schwenkklappe die Walze von einem leitenden Teil Qi) und einem nichtleitenden
Teil (h") der Schienen bewegt wird.Fire protection device for cinematographic apparatus, in which the film tape forming a loop influences a contact device by means of a pivoting flap, characterized in that the pivoting flap is arranged in front of a contact roller (g) which rests freely on inclined rails (Ji) and can be rolled freely. that when the pivoting flap is moved, the roller is moved by a conductive part Qi) and a non-conductive part (h ") of the rails.
DEN30474D
Fire protection device for cinematographic apparatus
ExpiredDE526756C
(en)
Method and device for the automatic determination of the point in time of the onset of the activity of a speaking machine plate during the unwinding of an image film with continuous marking.