Cinecamera equipment capable of synchronous sound recording

A motion picture camera for use selectively with a silent film magazine containing a silent film and a sound film magazine containing a sound film comprising:

• (A) means forming a chamber in which the silent film magazine and the sound film magazine are selectively loadable, said chamber having a first location for enabling either of the silent film and the sound film to be exposed to light from a scene and a second location for enabling the sound film to have sound signals recorded thereon;
• a portion of the silent film being disposable at said first location of the chamber for silent filming and portions of the sound film being disposable at said first and second locations of the chamber for sound filming;
• (B) optical means for exposing either of the silent film and the sound film to the scene lights at the first location of the chamber to light from a scene;
• (C) a sound recording device having recording head means disposed within the chamber at said second location to record the sound signals on the sound film;
• (D) a continuous film transport device to continuously transport the sound film at said second location of the chamber for the sound recording, said continuous film transport device including
• driving means disposed within the chamber at said second location to continuously transport the sound film for sound recording;
• roller means to operatively engage the sound film with said driving means for the continuous transport, said roller means being shiftable between a first position at which the roller means sandwiches the sound film between the driving means and a second position at which the roller means is separated from the driving means;
• and
• shifting means for shifting said roller means between said first and second positions;
• said shifting means including electromagnetic means to shift said roller means between the first and second positions;
• (E) detecting means for detecting whether the second location of the chamber is used by the sound film, said detecting means being arranged for producing a signal upon detecting that the second location of the chamber is used by sound film;
• and
• (F) control means responsive to the signal produced by said detecting means to set said film transport device into an operable state, and being electrically coupled to said electromagnetic means and actuating the electromagnetic means in response to the signal produced by the detecting means, so that that roller means is shifted to the first position from the second position by the electromagnetic means.