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Application grantedgrantedCritical
Publication of DE621383CpublicationCriticalpatent/DE621383C/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
G03B21/32—Details specially adapted for motion-picture projection
G03B21/43—Driving mechanisms
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
Unwinding Webs
(AREA)
Winding Of Webs
(AREA)
Description
Berlin. oübRUCKT IK öfenBerlin. oübRUCKT IK ovens
Claims (1)
Patentanspruch:Claim:Triebwerk zum wechselweisen Antrieb je einer der beiden Filmspulen eines Kinoapparates
in zueinander entgegengesetztem Sinne mit zwei auf der Antriebswelle be-■festigten^ntgegengesetztgerichtetenSperrklinken,
dadurch gekennzeichnet, daß auf den Spulenachsen mit diesen zusammenarbeitende
Sperrstifte angeordnet sind und die Klinken z. B. durch. Befestigen, auf
einer gemeinsamen Welle starr miteinander verbunden sind derart, daß bei Änderung
der Drehrichtung die eine Sperrklinke durch die andere, und zwar durch
deren Zusammenwirken mit einem Sperrstift abgehoben und dadurch zwangsläufig
die zweite Sperrklinke in das zugehörige Sperrorgan eingelegt wird.Drive mechanism for alternately driving one of the two film reels of a cinema set
in opposite directions with two pawls attached to the drive shaft,
characterized in that cooperating with these on the coil axes
Locking pins are arranged and the pawls z. B. by. Attach, on
a common shaft are rigidly connected to each other in such a way that when changed
the direction of rotation one pawl through the other, namely through
their interaction with a locking pin lifted and therefore inevitably
the second pawl is inserted into the associated locking member.Hierzu ι Blatt ZeichnungenFor this purpose ι sheet of drawings
DENDAT621383D
Drive mechanism for the film reels in cinema sets
ExpiredDE621383C
(en)