AT347261B - SOUND FILM PROJECTOR - Google Patents

SOUND FILM PROJECTOR

Info

Publication number
AT347261B
AT347261B AT503374A AT503374A AT347261B AT 347261 B AT347261 B AT 347261B AT 503374 A AT503374 A AT 503374A AT 503374 A AT503374 A AT 503374A AT 347261 B AT347261 B AT 347261B
Authority
AT
Austria
Prior art keywords
sound film
film projector
projector
sound
film
Prior art date
Application number
AT503374A
Other languages
German (de)
Other versions
ATA503374A (en
Original Assignee
Polaroid Corp
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 Polaroid Corp filed Critical Polaroid Corp
Publication of ATA503374A publication Critical patent/ATA503374A/en
Application granted granted Critical
Publication of AT347261B publication Critical patent/AT347261B/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
    • H02P23/10—Controlling by adding a dc current
    • 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
    • G03B31/00—Associated working of cameras or projectors with sound-recording or sound-reproducing means
    • 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
    • G03B31/00—Associated working of cameras or projectors with sound-recording or sound-reproducing means
    • G03B31/02—Associated working of cameras or projectors with sound-recording or sound-reproducing means in which sound track is on a moving-picture film
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
    • H02P5/46—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another
    • H02P5/48—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another by comparing mechanical values representing the speeds
    • H02P5/485—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another by comparing mechanical values representing the speeds using differential movement of the two motors, e.g. using differential gearboxes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Ac Motors In General (AREA)
  • Details Of Cameras Including Film Mechanisms (AREA)
AT503374A 1973-06-28 1974-06-18 SOUND FILM PROJECTOR AT347261B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US37463873A 1973-06-28 1973-06-28

Publications (2)

Publication Number Publication Date
ATA503374A ATA503374A (en) 1978-04-15
AT347261B true AT347261B (en) 1978-12-27

Family

ID=23477627

Family Applications (1)

Application Number Title Priority Date Filing Date
AT503374A AT347261B (en) 1973-06-28 1974-06-18 SOUND FILM PROJECTOR

Country Status (7)

Country Link
JP (1) JPS5746536B2 (en)
AT (1) AT347261B (en)
CA (1) CA1028025A (en)
DE (1) DE2428154A1 (en)
FR (1) FR2235530B1 (en)
GB (1) GB1463085A (en)
IT (1) IT1013343B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH666561A5 (en) * 1983-10-12 1988-07-29 Prontophot Holding Ag DEVICE FOR EXPOSING BORDERLESS PHOTOGRAPHIC COPIES OF DIFFERENT IMAGE FORMATS.
JPH1138527A (en) * 1993-09-24 1999-02-12 Sony Corp Digital sound signal reproducing device for projector

Also Published As

Publication number Publication date
IT1013343B (en) 1977-03-30
JPS5038535A (en) 1975-04-10
GB1463085A (en) 1977-02-02
CA1028025A (en) 1978-03-14
JPS5746536B2 (en) 1982-10-04
AU7016474A (en) 1975-12-18
FR2235530A1 (en) 1975-01-24
FR2235530B1 (en) 1980-11-14
DE2428154A1 (en) 1975-01-16
ATA503374A (en) 1978-04-15

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee