DE652239C - Cinema suitcase - Google Patents

Cinema suitcase

Info

Publication number
DE652239C
DE652239C DEL88699D DEL0088699D DE652239C DE 652239 C DE652239 C DE 652239C DE L88699 D DEL88699 D DE L88699D DE L0088699 D DEL0088699 D DE L0088699D DE 652239 C DE652239 C DE 652239C
Authority
DE
Germany
Prior art keywords
cinema
case
suitcase
sound
shaft
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
DEL88699D
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.)
Ernst Leitz Wetzlar GmbH
Original Assignee
Ernst Leitz Wetzlar GmbH
Publication date
Priority to DEL88699D priority Critical patent/DE652239C/en
Application granted granted Critical
Publication of DE652239C publication Critical patent/DE652239C/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
    • G03B29/00—Combinations of cameras, projectors or photographic printing apparatus with non-photographic non-optical apparatus, e.g. clocks or weapons; Cameras having the shape of other objects

Description

652 2S9652 2S9

KinokofferapparatCinema suitcase

Man versucht bei Kinoapparaten, die für Tonfilm verwendet werden, jede Geräusch erzeugende bzw. durchlassende Stelle auszuschalten. Besonders wichtig ist dies bei Kofferapparaten, die für gewöhnlich nicht in schalldichten Räumen, sondern im Zuschauerraum direkt aufgestellt werden. Eine dieser Geräusch durchlassenden Stellen ist bisher bei Koffergeräten der Durchtritt für den Filmspulenantrieb gewesen, da üblicherweise die Schnurscheibe, über die ein Treibriemen, eine Peese o.'dgl. läuft, innerhalb des Koffers, die Filmspule jedoch außerhalb desselben gelagert ist.In the case of cinematographic apparatus used for sound film, attempts are made to use any sound-producing apparatus or switch off the leakage point. This is particularly important for suitcase devices that are usually not in soundproof rooms, but can be set up directly in the auditorium. One of these So far in case devices the passage for the noise-permeable points is Film reel drive, because usually the pulley, over which a drive belt, a peese or the like runs inside the case, but the film reel is stored outside of it is.

Erfindungsgemäß wird dieser Mangel dadurch behoben, daß man die Schnurscheibe außerhalb des Koffers anbringt und mit einer Steckwelle durch eine in der Wand angebrachte Schalldichtung hindurch ,mit dem Triebwerk in Verbindung bringt. Versuche haben ergeben, daß eine Leitung des Schalles durch die metallische Steckwelle nicht in dem Maße wie durch die Peesendurchtrittsöffnungen erfolgt und infolgedessen eine Geräuschverminderung gegenüber Geräten mit Peesendurchtrittsöffnungen erreicht wird.This deficiency becomes according to the invention fixed that one attaches the cord disc outside of the suitcase and with a Stub shaft through a sound seal installed in the wall, with the Bringing engine into connection. Tests have shown that a conduction of sound through the metallic stub shaft not to the same extent as through the pee passage openings takes place and as a result a noise reduction compared to devices with pee openings is achieved.

In der Zeichnung ist die Erfindung in einem Ausführungsbeispiel dargestellt.In the drawing, the invention is shown in one embodiment.

An einem Kinokofferapparat 1 sind die Tragarme 2a und 2b für die Filmtrommeln 3a, 3j angebracht. An dem? Tragarm 2b der Aufwickeltrommel 3A ist eine Schnurscheibe 4 für den Treibriemen 5 gelagert, die durch 'ein auf gleicher Welle sitzendes Zahnrad mit Schrägverzahnung mit einem weiteren Zahnrad 6 kämmt, das mit der Welle 7 starr verbunden ist. Die Welle 7 stößt durch eine schallmindernde Abdichtung 8 in der Kofferwand 11 in das Innere des Koffers hinein und kommt durch eine Steckverbindung 9 mit dem Triebwerk 10 in Eingriff. ' The support arms 2 a and 2 b for the film drums 3 a , 3 j are attached to a cinema case apparatus 1. To the? Support arm 2 b of the winding drum 3 A is mounted a cord pulley 4 for the drive belt 5, which meshes with a further gear 6 which is rigidly connected to the shaft 7 through a gear with helical teeth seated on the same shaft. The shaft 7 pushes through a sound-reducing seal 8 in the case wall 11 into the interior of the case and comes into engagement with the engine 10 through a plug connection 9. '

Auf diese Weise ist die Möglichkeit, daß das Triebwerkgeräusch auch noch durch die Treibriemendurchtritte hindurchdringt, behoben. In this way there is the possibility that the engine noise will also be caused by the Drive belt penetrations through, fixed.

Claims (2)

Patentansprüche;Claims; 1. Kinokofferapparat, bei dem mindestens eine vom Projektorwerk angetriebene Filmspule während des Betriebes außerhalb des Koffers abnehmbar angesetzt wird, dadurch gekennzeichnet, daß die Kraftübertragung vom Projektorwerk zu "der bzw. den Spulen durch eine Welle vermittelt wird, die. in der Kofferwand in einer schallmindernden Dichtung läuft.1. Cinema case apparatus, in which at least one driven by the projector work The film reel is detachably attached outside the case during operation is, characterized in that the power transmission from the projector work to "the coil or coils is mediated by a shaft which. in the case wall in a sound-reducing seal is running. 2. Kinokofferapparat nach Anspruch 1, dadurch gekennzeichnet, daß die den Filrrispulenantrieb mit dem Projektorwerk verbindende Welle mit einer lösbaren Verbindung, z. B. einer Steck'- oder Schraubverbindung, versehen ist.2. cinema case apparatus according to claim 1, characterized in that the Filrrispulenantrieb with the projector unit connecting shaft with a detachable Connection, e.g. B. a plug or screw connection is provided.
DEL88699D Cinema suitcase Expired DE652239C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL88699D DE652239C (en) Cinema suitcase

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL88699D DE652239C (en) Cinema suitcase

Publications (1)

Publication Number Publication Date
DE652239C true DE652239C (en) 1937-10-27

Family

ID=7286628

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL88699D Expired DE652239C (en) Cinema suitcase

Country Status (1)

Country Link
DE (1) DE652239C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1118002B (en) * 1957-11-02 1961-11-23 Meopta Narodni Podnik Case-like cinematographic device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1118002B (en) * 1957-11-02 1961-11-23 Meopta Narodni Podnik Case-like cinematographic device

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