DE968446C - Drive for the cooling fan of the cinema machines - Google Patents

Drive for the cooling fan of the cinema machines

Info

Publication number
DE968446C
DE968446C DEF14131A DEF0014131A DE968446C DE 968446 C DE968446 C DE 968446C DE F14131 A DEF14131 A DE F14131A DE F0014131 A DEF0014131 A DE F0014131A DE 968446 C DE968446 C DE 968446C
Authority
DE
Germany
Prior art keywords
drive
cinema
machines
cooling fan
arc lamp
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
DEF14131A
Other languages
German (de)
Inventor
Dr-Ing Angel Jotzoff
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.)
Frieseke and Hoepfner GmbH
Original Assignee
Frieseke and Hoepfner GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Frieseke and Hoepfner GmbH filed Critical Frieseke and Hoepfner GmbH
Priority to DEF14131A priority Critical patent/DE968446C/en
Application granted granted Critical
Publication of DE968446C publication Critical patent/DE968446C/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/14Details
    • G03B21/20Lamp housings
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/14Details
    • G03B21/16Cooling; Preventing overheating

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Projection Apparatus (AREA)

Description

Antrieb für das Kühlgebläse der Kinomaschinen Das.Kühlgebläse bei Kinomaschinen dient bekanntlich dem besonderen Zweck, bestimmte Teile des Projektors, soweit sie sich im Bereich des Bildfensters befinden, insbesondere die Filmführung, und Teile der Bogenlampe vor den Einwirkungen der intensiven Wärmestrahlung der Bogenlampe zu schützen. Dabei soll insbesondere der Film selbst vor übermäßiger Erwärmung oder gar Entflammung bei auftretenden Betriebsstörungen bewahrt werden. Ferner ist es bekannt, für die Kühlung sowohl der Bogenlampe als auch des Projektorkopfes mit dem Bildfenster ein einziges Gebläse vorzusehen, das zwischen der Bogenlampe und dem Projektorkopf angeordnet ist. Bei manchen Ausführungen wird der Kühlstrom außerdem auch noch über eine Kühlflüssigkeit hinweggeführt, um so eine Art von Luftbefeuchtung zu erzeugen, dies einem Austrocknen des Filmes entgegenwirkt.Drive for the cooling fan of the cinema machines Das.Kühlgebläse bei Cinema machines are known to have the special purpose of moving certain parts of the projector, as far as they are in the area of the picture window, in particular the film guide, and parts of the arc lamp from the effects of the intense heat radiation Protect arc lamp. In particular, the film itself should be protected from excessive Warming up or even ignition can be preserved in the event of malfunctions. It is also known for cooling both the arc lamp and the projector head with the picture window to provide a single blower between the arc lamp and the projector head is arranged. In some designs, the cooling flow is also passed over a cooling liquid to create a kind of air humidification to produce, this counteracts drying of the film.

Die für solche Zwecke zur Verwendung kommenden Gebläseeinrichtungen werden vielfach als getrennte Aggregate mit besonderem Motorantrieb ausgebildet, sind aber in vielen Fällen auch unmittelbar mit dem Projektor organisch verbunden insoweit, als der Antriebsmotor der Kinomaschine oder ein mit diesem in Antriebsverbindung stehendes Organ zur Erzeugung der Gebläseluft herangezogen ist. Für die Kühlung der Bogenlampe allein ist bekannt, den Kohlenachschubmotor für das Gebläse heranzuziehen.The blower devices used for such purposes are often designed as separate units with a special motor drive, but in many cases they are also organically connected directly to the projector as far as the drive motor of the cinema machine or a drive connection with it standing organ is used to generate the blower air. For cooling the arc lamp alone is known to use the coal feed motor for the blower.

Einrichtungen, bei denen der Antrieb der Kinomaschine gleichzeitig auch zum Antrieb des Gebläses dient, haben den großen Nachteil, daß, sofern bei brennender Bogenlampe eine Betriebsstörung eintritt, die unter Umständen mit einem Stillstehen des Projektors verbunden ist, die von der Bogenlampe angestrahlten Projektorteile keine Kühlung erhalten. Das kann zu ganz erheblichen Störungen führen, z. B. zu Verwölbungen der Filmführung; wodurch wiederum die Tonwiedergabe nachteilig beeinflußt wird. Natürlich wird in erster Linie der Film, sofern sich derselbe noch in seiner Führung befindet, in Mitleidenschaft gezogen und kann zur Entflammung gebracht werden, weil keine Kühlung vorhanden ist.Facilities in which the drive of the cinema machine is simultaneous also serves to drive the fan, have the major disadvantage that provided a malfunction occurs when the arc lamp is lit, which may also be associated with a standstill of the projector is connected, which is illuminated by the arc lamp Projector parts are not being cooled. This can lead to considerable disruptions, z. B. to curvature of the film guide; which in turn adversely affects the sound reproduction being affected. Of course, the film is primarily provided, provided that it is still the same is in its guidance, is affected and can ignite because there is no cooling available.

Die Erfindung bezieht sich auf solche Gebläseeinrichtungen, deren Antrieb mit der Kinomaschine mit Kohlelichtbogenbeleuchtung selbst ebenfalls organisch in Verbindung steht.The invention relates to such fan devices, their Drive with the cinema machine with carbon arc lighting itself also organic communicates.

Der erfindungsgemäße Vorschlag geht dahin, zur Kaltlufterzeugung den Motor für das Nachschubgetriebe der Kohlen der Bogenlampe heranzuziehen, diesen Motor also für . die Kaltlufterzeugung im Projektorkopf zu benutzen. Auf diese Weise werden der Film und die Projektorteile stets unter dem Einfluß einer ordnungsgemäßen Kühlung bleiben, sobald die Bogenlampe in Betrieb genommen ist. Diese Maßnahme erweist sich als sehr vorteilhaft und erhöht die Sicherheit ganz erheblich.The proposal according to the invention goes to the generation of cold air To use the motor for the supply gear of the coals of the arc lamp, this one Engine for. to use the cold air generation in the projector head. In this way the film and the projector parts are always under the influence of a proper Stay cool as soon as the arc lamp is put into operation. This measure proves proven to be very beneficial and increases security considerably.

Claims (1)

PATENTANSPRUCH: Antrieb für das Kühlgebläse bei Kinomaschinen mit Kohlelichtbogenbeleuchtung, dadurch gekennzeichnet, daß der Nachschubmotor für die Kohlen der Bogenlampe zur Erzeugung der Gebläseluft für den Projektorkopf, insbesondere den Film, herangezogen ist. In Betracht gezogene Druckschriften: Deutsche Patentschriften Nr. 86.2 555, 701 234-Claim: Drive for the cooling fan in cinema machines with carbon arc lighting, characterized in that the supply motor for the coals of the arc lamp is used to generate the fan air for the projector head, in particular the film. Considered publications: German Patent Specifications No. 86.2 555, 701 234-
DEF14131A 1954-03-11 1954-03-11 Drive for the cooling fan of the cinema machines Expired DE968446C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF14131A DE968446C (en) 1954-03-11 1954-03-11 Drive for the cooling fan of the cinema machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF14131A DE968446C (en) 1954-03-11 1954-03-11 Drive for the cooling fan of the cinema machines

Publications (1)

Publication Number Publication Date
DE968446C true DE968446C (en) 1958-02-20

Family

ID=7087497

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF14131A Expired DE968446C (en) 1954-03-11 1954-03-11 Drive for the cooling fan of the cinema machines

Country Status (1)

Country Link
DE (1) DE968446C (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE701234C (en) * 1933-07-16 1941-01-11 Bauer Eugen Gmbh Cinema show device with standstill device
DE862555C (en) * 1944-11-12 1953-01-12 Bauer Eugen Gmbh Motion picture projector with cooling fan

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE701234C (en) * 1933-07-16 1941-01-11 Bauer Eugen Gmbh Cinema show device with standstill device
DE862555C (en) * 1944-11-12 1953-01-12 Bauer Eugen Gmbh Motion picture projector with cooling fan

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