DE519591C - Cooling device for the picture tape in cinema playback machines - Google Patents

Cooling device for the picture tape in cinema playback machines

Info

Publication number
DE519591C
DE519591C DEZ17291D DEZ0017291D DE519591C DE 519591 C DE519591 C DE 519591C DE Z17291 D DEZ17291 D DE Z17291D DE Z0017291 D DEZ0017291 D DE Z0017291D DE 519591 C DE519591 C DE 519591C
Authority
DE
Germany
Prior art keywords
air
pump
cooling device
cooling fins
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
DEZ17291D
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
Priority to DEZ17291D priority Critical patent/DE519591C/en
Application granted granted Critical
Publication of DE519591C publication Critical patent/DE519591C/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)
  • Motor Or Generator Cooling System (AREA)

Description

Gegenstand der Erfindung ist eine neuartige Ausbildung eines Drucklufterzeugers zur Erzeugung der zwecks Filmkühlung an Kinomaschinen benötigten Kühlluft. Der Drucklufterzeuger muß mit Rücksicht darauf, daß er auch in engen Kinokabinen aufgestellt werden soll, verhältnismäßig geringe Ausmaße haben, dabei aber trotzdem eine große Windleistung besitzen, was durch hohe Umlaufzahl der Pumpe erreicht wird. Bei einem solchen Betriebe wird der Apparat ungewöhnlich warm, und man muß für eine gute Kühlung Sorge tragen. Dies wird erreicht, indem man Kühlrippen vorsieht, die über die Pumpe sowie über den sich an diese direkt anschließenden Windkessel reichen. Um die Kühlwirkung noch zu erhöhen, kann man auf die Motorwelle zwischen Motor und Drucklufterzeuger einen besonderen Ventilator an- bringen, der Luft zwischen die Kühlrippen bläst. Um jede Verbindungsleitung zwischen Pumpe und Windkessel zu vermeiden und so von besonderen, dem Verschleiß stets unterworfenen Abdichtungen absehen zu können, stellt die Pumpe und der Windkessel ein organisches Ganzes dar. Durch diese Bauart wird der Apparat auch billiger in der Herstellung, als wenn Pumpe und Windkessel je ein Aggregat für sich darstellen.
Die Abb. 1 der Zeichnung zeigt einen Längsschnitt, Abb. 2 einen Querschnitt A-B des Erfindungsgegenstandes.The subject of the invention is a novel design of a compressed air generator for generating the cooling air required for the purpose of film cooling on cinema machines. The compressed air generator must have relatively small dimensions, taking into account that it is also to be set up in narrow cinema booths, but still have a large wind output, which is achieved by the high number of revolutions of the pump. In such an operation the apparatus becomes unusually warm and care must be taken to ensure that it is well cooled. This is achieved by providing cooling fins that extend over the pump as well as over the air tank directly connected to it. To increase the cooling effect even more, a special fan can be attached to the motor shaft between the motor and the compressed air generator, which blows air between the cooling fins. In order to avoid any connection between the pump and the air chamber and to avoid special seals that are always subject to wear, the pump and the air chamber represent an organic whole. This design also makes the apparatus cheaper to manufacture than if the pump and Air chambers each represent an aggregate of their own.
Fig. 1 of the drawing shows a longitudinal section, Fig. 2 a cross section AB of the subject of the invention.

Der Drucklufterzeuger besteht aus einem an sich bekannten Hohlkörper 9, der auf seiner gesamten Oberfläche achsparallel gerichtete Kühlrippen 6 trägt. Der Hohlkörper 9 ist .innen durch eine Scheidewand 10 in zwei Räume 4, 12 getrennt, die aber durch ein Loch 11 miteinander in Verbindung stehen. Der Raum 4 stellt den Windkessel des Drucklufterzeugers dar. In dem Räume ist der eigentliche Druckerzeuger in Form einer rotierenden Kapselpumpe 3 untergebracht, die über eine Kupplung 2 durch einen Elektromotor 1 o. dgl. angetrieben wird. Auf der Motorwelle ist ein Ventilator 7 angebracht, dessen Luftstrom durch eine ihn umgebende Haube 8 die Kühlrippen bestreicht. In dem Windkessel 4 ist in bekannter Weise eine Wand 5 vorgesehen, die als ölfänger wirkt.The compressed air generator consists of a known hollow body 9, which on its entire surface carries axially parallel cooling fins 6. The hollow body 9 is inside by a partition 10 separated into two rooms 4, 12, but which are connected to one another by a hole 11 stand. The room 4 represents the air tank of the compressed air generator. In the room is the actual pressure generator in the form of a rotating capsule pump 3 housed, which via a clutch 2 by an electric motor 1 o. The like. Driven will. A fan 7 is attached to the motor shaft, its air flow coated by a hood 8 surrounding it, the cooling fins. In the air chamber 4 is a wall 5 is provided in a known manner, which acts as an oil catcher.

Claims (2)

Patentansprüche:Patent claims: 1. Drucklufterzeuger für Kinowiedergabemaschinen, bei dem Luftpumpe und Windkessel in einem Hohlkörper angebracht sind, dadurch gekennzeichnet, daß der Hohlkörper (9) außen über seine ganze Länge mit achsparallelen Kühlrippen (6) versehen ist, innen mittels einer festen Wand (10) in zwei durch eine Öffnung (11) verbundene Räume (4, 12) geteilt ist, von denen der eine (12)' die Kapselpumpe (3) enthält, während der andere (4) als Windkessel dient.1. Compressed air generator for cinema playback machines, with the air pump and Air chambers are mounted in a hollow body, characterized in that the hollow body (9) on the outside over its entire length with axially parallel cooling fins (6) is provided inside by means of a solid wall (10) in two by one Opening (11) connecting rooms (4, 12) is divided, of which one (12) 'contains the capsule pump (3), during the other (4) serves as an air vessel. 2. Drucklufterzeuger nach Anspruch 1, dadurch gekennzeichnet, daß die Kühlrippen (6) durch den Luftstrom eines auf der Antriebswelle der Kapselpumpe (3) sitzenden Ventilators (7) bestrichen werden, der sich innerhalb eines Gehäuses (8) befindet.2. Compressed air generator according to claim 1, characterized in that the cooling fins (6) through the air flow one on the drive shaft of the capsule pump (3) seated fan (7), which is located within a housing (8) is located. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEZ17291D Cooling device for the picture tape in cinema playback machines Expired DE519591C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEZ17291D DE519591C (en) Cooling device for the picture tape in cinema playback machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEZ17291D DE519591C (en) Cooling device for the picture tape in cinema playback machines

Publications (1)

Publication Number Publication Date
DE519591C true DE519591C (en) 1931-03-02

Family

ID=7624280

Family Applications (1)

Application Number Title Priority Date Filing Date
DEZ17291D Expired DE519591C (en) Cooling device for the picture tape in cinema playback machines

Country Status (1)

Country Link
DE (1) DE519591C (en)

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