Photographing system and a motion picture camera using the same

A motion picture camera comprising:

• a housing having a cartridge chamber into which either (1) a silent film cartridge housing a strip of film being able to record picture image information only, or (2) a sound film cartridge housing a strip of film being able to record picture image information and sound information and having a portion protruding further outside the cartridge than the silent film cartridge, can be selectively loaded, and which one side wall of said chamber has a perforated hole for detecting cartridge type, said hole in said wall being covered with said protruding part of said sound film cartridge when said cartridge is loaded and not being covered with the silent film cartridge when said cartridge is loaded;
• a means to record picture image information on the film loaded into said cartridge chamber;
• a first transport means which contributes to transport the film to a picture image formable position of the picture forming means;
• a sound recording head which can record sound information on the film within the sound film cartridge when said cartridge is loaded;
• a second transport means having a capstan rotatable about a fixed axis and a movable pressure roller capable of being shifted to a position to engage with said capstan and to a position to disengage with the same, being respectively positioned to sandwich a running path of said sound film which passes through the sound recording head, and being able to run the sound film on said running path which passes through the sound recorded head by pressure contacting the pressure roller with the capstan;
• and
• a control means to control said film transport of the first transport means and the second transport means, in which said control means includes;
• a. a release means which can be handled from outside of a camera and can be shifted to (1) a first position to actuate said camera and to (2) a second position to stop the action of the camera,
• b. a first actuating means to control the actuation and stopping of said first transport means, wherein said actuating means can be shifted in an association with the shifting of the release means to (1) a first position at which it is placed when the release means is located at its first position to put the first transport means in an operable state and to (2) a second position at which it is placed when the release means is located at its second position to put the first transport means in an operable state,
• c. a second actuating means to control the shifting of the pressure roller, wherein said actuating means can be selectively shifted to a first position at which the pressure roller engages with the capstan and to a second postion at which said roller disengages from the capstan,
• d. a mode change-over means to selectively establish the associating relationship between the release means and the second actuating means so that the second actuating means is shifted to its first position when the release means is located at its first positioned while the second actuating means is shifted to its second position when the release means is located at its second position, wherein said change-over means can be shifted to a first position located between the release means and the second actuating means to form an associated relationship and to a second position located outside of the space between the release means and the second actuating means to release said associated relationship,
• e. a detector having a detecting portion located within a cartridge type detection perforated hole of the cartridge chamber for detecting the type of the film cartridge loaded into said cartridge chamber and a controlling portion to control the mode change-over means, wherein said detector can be selectively shifted to (1) a first position at which the detecting portion protrudes from the perforated hole of the cartridge chamber into the cartridge chamber at the same time the controlling portion holds the mode change-over means at its second position, and to (2) a second position at which the detecting portion retracts itself from the cartridge chamber at the same time the controlling portion holds the mode change-over means at its first position, and
• f. an urging means to bias the detector to the direction of the first position;
• whereby when the sound film cartridge is loaded into the cartridge chamber, the detecting portion is retracted to outside of the cartridge chamber against the biasing power of the urging means by such portion of the detecting portion as contributes to the formation of the sound recording opening of the sound film cartridge and the detector is shifted from the first position to the second position.

A motion picture camera into which (1) a silent film capable of recording picture image information only and (2) a sound film having a sound recording zone at its position and capable of recording picture image information and sound information on the same film can be selectively loaded, wherein the improvement comprises;

• a. a driving means;
• b. a picture image forming means;
• c. a first transport means to transport said selectively loaded film to a picture image formable position of the picture image forming means, being actuated by receiving the driving force of the driving means;
• d. a sound recording means to record sound information on the sound recording zone of the film in association with the recording of picture image information on the film by the picture image forming means when the sound film is loaded;
• e. a second transport means to transport the film with an almost constant speed at a sound signal recordable position of the sound recording means when the sound film is loaded, wherein said transport means has a capstan member rotated by receiving the driving force of the driving means and a freely rotatable pinch roller means at such opposing positions for sandwiching the running path of the sound film, and one member from said capstan member and the pinch roller member can be selectively shifted to (1) a first position at which each member is in mutually pressure contacting relationship and being able to transport the film and to (2) a second position at which the distance between said member is largely separated placing the film in a free state between the capstan member and the pinch roller member;
• and
• f. a release means to control the initiation of the driving means and the shifting of the movable member of the second transport means, having
• 1. a release member which can be handled from outside of a camera, being able to be selectively shifted to a first position to hold the driving means in a driving state and to a second position to hold the same in a non-driving state,
• 2. an actuating means to control the shifting of the movable member of the second transport means, wherein said actuating means is activated by receiving the shifting action of the release member, and, when the release member is at its first position, the movable member of the second transport means is retained at its first position, while when the release member is at its second position, the movable member of the second transport means is retained at its second position, and
• 3. a mode change-over means to selectively release the associating relationship between the release member and the actuating member, wherein said change-over means is located between the release member and the actuating means and can be selectively shifted to a first position at which the functional relationship between the release member and the actuating means is cut off and to a second position at which said functional relationship is formed;
• whereby the mode change-over means is located at its first position when the silent film is loaded, while the mode change-over means is located at its second position when the sound film is loaded, so that the handling power for handling the release member from outside of a camera can be made small when the silent film is used.

A motion picture camera to which (1) a silent film capable of recording picture image information only and (2) a sound film capable of recording picture image information and sound information on the same film can be selectively loaded, the improvement comprising:

• a. a control means to control the initiation and stopping of the camera, being able to be handled from outside of the camera and shifted to a first position to activate the camera and to a second position to stop the activation of the camera;
• b. a first driving means;
• c. a first switch for supplying the current supply to the first driving means;
• d. a first transport means to transport said selectively loaded film to a picture image formable position of the picture image forming means, being actuated by receiving the driving force of the first driving means;
• e. a rotary shutter means to selectively shield the light from an object incident to the picture image formable position, wherein said shutter means is positioned between the picture image forming means and the film running path and is rotatingly operated receiving the driving force of the first driving means;
• f. a first actuating means having at least a blocking portion to engage with the rotary shutter means and to block the rotating action of said rotary shutter means and a controlling portion to control the opening and closing of the first switch, wherein said actuating means is associated with the shifting of the control means and can be selectively shifted to (1) a first position at which it is placed when the control means is located at its second position and the blocking portion is placed in an engaging state with the rotary shutter means at the same time the controlling portion places the first switch in an opened state and to (2) a second position at which it is placed when the control means is placed at its first position and the blocking portion is placed in disengaged state with the rotary shutter means so as to allow the rotation of the rotary shutter means, said controlling portion at the same time placing the second switch in a closed state;
• g. a sound recording means to record sound information on the sound recording zone of the sound film in association with the recording of picture image information on said film by the picture image forming means when said film is loaded;
• h. a second driving means;
• i. a second switch for supplying current to said second driving means;
• j. a second transport means to transport the sound film with an almost constant speed to a sound signal recordable position of the sound recording means when said film is loaded, wherein said transport means has a capstan rotated by receiving the driving force of the second driving means and a freely rotatable pinch roller at almost opposing positions sandwiching the running path of the sound film, said pinch roller being selectively shifted to (1) a first position at which it comes into pressure contacting relationship being able to transport film and to (2) a second position at which the distance between the pinch roller and the capstan is largely separated to place the film in a free state between the capstan and the pinch roller;
• k. a second actuating means which controls the shifting of the first actuating means, the opening and closing of the second switch and the shifting of the pinch roller, wherein said actuating means is associated with the shifting of the control means and can be selectively shifted to (1) a first position at which it is placed when the control means is located at its second position and the first actuating means is held at its first position while the second switch is held at an opened state and the pinch roller is held at its second position, and to (2) a second position at which it is placed when the control means is located at its first position and the first actuating means is held at its second position while the second switch is held at the closed state and the pinch roller is held at its first position;
• 1. a mode change-over means to change over the channel by which the shifting power of the control means works on the first actuating means, wherein said change-over means can be handled from outside of the camera and can be selectively shifted by said handling to (1) a first position placed between the control means and the first actuating means to have the shifting of the control means directly work on the first actuating means and to (2) a second position placed between the control means and the second actuating means to have the above-mentioned shifting of the control means work on the first actuating means through the second actuating means;
• whereby, when the silent film is loaded, the mode changeover means is placed at its first position, while when the sound film is loaded, the mode change-over means is placed at its second position so that the handling power to handle the control means from outside of the camera when the silent film is used is made small.

A motion picture camera having a cartridge chamber into which (1) a silent film cartridge having an exposure opening formed therein and housing a roll of photographic film which runs through said exposure opening and can record picture image information only and (2) a sound film cartridge having an exposure opening and a sound recording opening formed thereon and housing a roll of photographic film which runs through said exposure opening and said sound recording opening and has a sound recording zone capable of recording picture image information and sound information, and further having an identification part with different shape from that of the silent film cartridge provided at the outside thereof to distinguish the same from the silent film cartridge, can be selectively loaded, and having a cartridge type detection hole formed thereon at such position of a side wall of the chamber which corresponds to said cartridge identification part when said cartridge is loaded, the improvement comprising:

• a. a picture image forming means to form a picture image formable position on the film running path which runs on the exposure opening of the film cartridge selectively loaded into the chamber;
• b. a first transport means to transport the film in the film cartridge being selectively loaded into the chamber within the running path of film at the exposure opening;
• b. a first transport means to transport the film in the film cartridge being selectively loaded into the chamber within the running path of film at the exposure opening;
• c. a sound recording means having a transducing head means positioned near the film running path operating within the sound recording opening of the cartridge when the film cartridge is loaded into the cartridge chamber;
• d. a second transport means to transport the film with almost constant speed within the film running path at the sound recording opening of the cartridge when the sound film cartridge is loaded into the chamber, wherein said transport means has a capstan and a pinch roller at such opposing positions for sandwiching the film running path at the sound recording opening of the cartridge when the sound film cartridge is loaded, and at least one out of said capstan and pinch roller can be selectively shifted to (1) a first position so as to have both disposed in mutually pressure contact with each other for being able to transport the film and to (2) a second position at which the distance therebetween is largely separated to position the film in a free state between the pinch roller and the capstan,
• e. a control means to control the initiation and stopping of the camera, having:
• 1. a release means which can be handled from outside of the camera and can be selectively shifted to a first position to hold the camera in an operative state and to a second position to hold the same in an inoperative state,
• 2. an actuating means to control the shifting of the movable one out of the capstan and the pinch roller, wherein said actuating means is activated by receiving the shifting action of the release means to (A) hold the movable element of said capstan and pinch roller at its first position when the release means is at its first position and to (B) hold the movable element of said capstan and pinch roller at its second position when the release means is at its second position, and
• 3. a mode change-over means to selectively release the functional relationship between the release means and the actuating means, wherein said change-over means is positioned between the release means and the actuating means and can be selectively shifted to a first position to cut off the functional relationship between the release means and the actuating means and to a second position to establish said functional relationship, and
• f. a detector having a detecting portion positioned at the detection hole of the cartridge chamber to detect the type of film cartridge loaded into the cartridge chamber and a controlling portion to control the mode change-over means, wherein said detector detects the identification part of the film cartridge loaded into the cartridge chamber with its detecting portion and can be selectively shifted to (1) a first position at which the controlling portion holds the mode change-over means at its second position as the sound film cartridge is detected and to (2) a second position at which the controlling portion holds the mode change-over means at its first position as the silent film cartridge is detected.

A motion picture camera having a film cartridge chamber into which:

• 1. a silent film cartridge having an exposure opening formed thereon and housing a roll of photographic film which runs through said exposure opening and can record picture image information only, and
• 2. a sound film cartridge having an exposure opening and a sound recording opening formed thereon, at the same time housing a roll of photographic film which runs through said exposure opening and sound recording opening and has a sound recording zone at its portion and also can record picture image information and sound information, which further, as its external shape is compared with that of said silent film cartridge, having a part contributing to the formation of the sound recording opening protruding more than a corresponding part of the silent film cartridge, can be selectively loaded, wherein the improvement comprises:
• a. that said cartridge has a cartridge type detection perforated hole formed at such position on its side wall as would be covered by the protruding part when the sound film cartridge is loaded and not being covered by the silent film cartridge when said cartridge is loaded;
• b. a picture image forming means to form a picture image formable position on the film running path on the exposure opening of the film cartridge selectively loaded;
• c. a first transport means to transport the film within the selectively loaded film cartridge in the film running path at the exposure opening;
• d. a sound recording means which has a sound signal recordable position near the film running path within the sound recording opening of the cartridge at least when the sound film cartridge is loaded into said cartridge chamber;
• e. a second transport means to transport the sound film with an almost constant speed on the film running path corresponding to the sound signal recordable position of the sound recording means when the sound film cartridge is loaded, wherein said transport means has a freely rotatable pinch roller and a capstan at opposing positions which sandwiches the film running path at the sound recording opening of the sound film cartridge when the sound film cartridge is loaded into the cartridge chamber, and wherein said pinch roller can be selectively shifted to (1) a first position at which it comes in a pressure contacting relationship with the capstan to be able to transport the film and to (2) a second position at which the distance between itself and the capstan is largely separated to place the film in a free state between itself and the capstan;
• f. a control means to control the initiation of the camera and the shifting of the pinch roller, having:
• 1. a release means which can be handled from outside of the camera and can be shifted to a first position to hold the camera in a driving state and to a second position to hold the same in a non-operative state,
• 2. an actuating means to control the shifting of the pinch roller, wherein said actuating means functions by receiving the shifting action of the release means to (A) retain the pinch roller at its first position as the release means is at its first position and to (B) retain the pinch roller at its second position as the release means is at its second position, and
• 3. a mode change-over means to selectively release the functional relationship between the release means and the actuating means, wherein said change-over means is placed between the release means and the actuating means and can be selectively shifted to a first position to cut off the functional relationship between the release member and the actuating means and to a second position to establish said functional relationship;
• g. a detector having a detecting portion positioned within the cartridge type detection perforated hole of the cartridge chamber to detect the type of the film cartridge loaded into the cartridge chamber and a controlling portion to control the mode change-over means, wherein said detector can be selectively shifted to (1) a first position at which the detecting portion protrudes from the perforated hole of the cartridge chamber into the cartridge chamber, at the same time the controlling portion holds the mode change-over means at its first position and to (2) a second position at which the detecting portion retracts itself from the cartridge chamber at the same time the controlling portion holds the mode change-over means at its second position;
• and
• h. an urging means to always bias the detector to the direction of its first position;
• whereby, when the sound film cartridge is loaded into the cartridge chamber, the detecting portion is retracted to outside of the cartridge chamber by the part contributing to the formation of the sound recording opening of the sound film cartridge against the biasing power of the urging means, and the detector is shifted from its position to its second position.

A motion picture camera having a film cartridge chamber into which:

• 1. a silent film cartridge having an exposure opening formed thereon and housing a roll of photographic film which runs through said exposure opening and can record picture image information only, and
• 2. a sound film cartridge having an exposure opening and a sound recording opening and housing a roll of photographic film which runs through said exposure opening and the sound recording opening and has a sound recording zone at its portion, further can record picture image information and sound information, and also as its external shape is compared with that of the silent film cartridge, having a portion contributing to the formation of the sound recording opening which protrudes to a greater extend than a corresponding portion of the silent film cartridge;
• can be selectively loaded, wherein the improvement comprises:
• a. that said cartridge chamber has a cartridge type detection perforated hole formed at such position at a side wall of the chamber as would be covered by the part contributing to the formation of the sound recording opening of the cartridge when the sound film cartridge is loaded, and which would not be covered by the silent film when said cartridge is loaded;
• b. a picture image forming means to form a picture image formable position on the film running path which runs the exposure opening of the film cartridge selectively loaded;
• c. a first driving means;
• d. a switch means to control current supply to the first driving means;
• e. a first transport means to transport the film within the loaded film cartridge in the film running path at the exposure opening, being actuated by receiving driving power of the first driving means;
• f. a sound recording means which has a position for forming the film running path within the sound recording opening of the sound film cartridge as said cartridge is loaded into the cartridge chamber and at such opposing positions for sandwiching said film running path;
• 1. a transducing head means to record sound information on the sound recording zone of the film, and
• 2. a pad means for contacting the film with the transducing head means so as to enable the transducing head means to record the sound information on the sound film in a desired manner, wherein said pad means can be selectively shifted to (A) a first position at which it comes in pressure contacting relationship with the transducing head means to sandwich the film between itself and the head means, and to (B) a second position at which the distance between itself and the head means is largely separated to place the film in a free state between itself and the head means;
• g. a second driving means;
• h. a second transport means to run the film with an almost constant speed between the transducing head means and the pad means when the sound film cartridge is loaded;
• wherein said transport means has a freely rotatable pinch roller and a capstan rotated by receiving the driving power of the second driving means at almost opposing positions for sandwiching the film running path at the sound recording opening of the sound film cartridge when the sound film cartridge is loaded into the cartridge chamber, and said pinch roller can be selectively shifted to (1) a first position at which it comes in contacting relationship with the capstan to be able to transport the film, and to (2) a second position at which the distance between itself and the capstan is largely separated to position the film in a free state between itself and the capstan;
• i. a release means to control the switch means, wherein said release means can be handled from outside of the camera and can be selectively shifted to (1) a first position to hold the switch in a closed state, and to (2) a second position to hold the same in an opened state;
• j. an actuating means to control the above-mentioned shifting of the pad means and the shifting of the pinch roller, wherein said actuating means can be mechanically linked selectively with the release means and when so mechanically linked is shifted to (1) a first position to hold the pad means and the pinch roller at their first positions respectively in an association with the shifting of the release means to its first position, and to (2) a second position to hold the pad means and the pinch roller at their second positions respectively in an association with the shifting of the release means to its second position;
• k. a mode change-over means to selectively set and release the mechanical link between the release means and the actuating means, wherein said change-over means is positioned between the release means and the actuating means and can be selectively shifted to a first position to establish the mechanical link between the release means and the actuating means and to a second position to release said mechanical link;
• 1. a detector having a detecting portion positioned within the cartridge type detection perforated hole of the cartridge chamber to detect the type of the film cartridge loaded into the cartridge chamber and a controlling portion to control the mode change-over means, wherein said detector can be selectively shifted to (1) a first position at which the detecting portion protrudes out of the perforated hole of the cartridge chamber into the cartridge chamber, at the same time the controlling portion holds the mode change-over means at its first position, and to (2) a second position at which the detecting portion retracts itself from the cartridge chamber, at the same time, the controlling portion holds the mode change-over means at its second position;
• and
• m. an urging means to always bias the detector to the direction of its first position;
• whereby, when the sound film cartridge is loaded into the cartridge chamber, the detecting portion is retracted to a position outside of the cartridge chamber by the part of the sound film cartridge contributing to the formation of the sound recording opening resisting the biasing power of the urging means, while the detector is shifted from its first position to its second position.

A motion picture camera having a film cartridge chamber into which:

• 1. a silent film cartridge having an exposure opening formed thereon and housing a roll of photographic film which runs through said exposure opening and can record picture image information only, and
• 2. a sound film cartridge having an exposure opening and a sound recording opening formed thereon and housing a roll of photographic film which runs through said exposure opening and the sound recording opening and has a sound recording zone, further can record picture image information and sound information, and as its external shape is compared with that of the silent film cartridge, having a part contributing to formation of the sound recording opening protruding to a greater extent than a corresponding portion of the silent film cartridge,
• can be selectively loaded, the improvement therein comprising:
• a. said cartridge chamber has a cartridge type detection perforated hole formed at the position on one side wall of the chamber as would be covered by said protruding part of the sound film cartridge when said cartridge is loaded and not being covered by the silent film cartridge when said cartridge is loaded;
• b. a picture image forming means having a picture image formable position on the film running path on the exposure opening of the film cartridge selectively loaded;
• c. a control means to control the initiation and stopping of the camera, being able to be handled from outside of the camera and to be shifted to a first position to actuate the camera and to a second position to stop the action of the camera;
• d. a first driving means;
• e. a first switch to control the current supply to said first driving means;
• f. a first transport means to transport the film within the loaded film cartridge in the film running path at the exposure opening, being actuated by receiving the driving power of the first driving means;
• g. a rotary shutter means to selectively shield the light beam from an object incident into the picture image formable position, wherein said shutter means is positioned between the picture image forming means and the cartridge chamber and rotatingly acts by receiving the driving power of the first driving means;
• `h. a first actuating means having at least a blocking portion to engage with the rotary shutter means and to block the rotating action of the rotary shutter means and a controlling portion to control the opening and closing of the first switch, wherein said actuating means is associated with the shifting of the control means and can be selectively shifted to (1) a first position at which it is placed as the control means is placed at its second position, and the blocking portion is placed in engagement with the rotary shutter means, at the same time the controlling portion places the first switch in an opened state, and to (2) a second position at which it is placed when the control means is placed at its first position and the blocking portion is so placed in non-engagement state with the rotary shutter means as allowing the rotation of the rotary shutter means, at the same time the controlling portion places the second switch is a closed state;
• i. a sound recording means, which has at least a sound signal recordable position near the film running path within the sound recording opening of the cartridge when the sound film cartridge is loaded into the film cartridge chamber;
• j. a second driving means;
• k. a second switch to control the current supply to the second driving means;
• 1. a second transport means to transport the film with an almost constant speed on the film running path corresponding to the sound signal recordable position of the sound recording means when the sound film cartridge is loaded, wherein said transport means has at least a freely rotatable pinch roller and a capstan rotated by receiving the driving power of the second driving means at opposing positions for sandwiching the film running path at the sound recording opening of the sound film cartridge when said sound film cartridge is loaded into said cartridge chamber, and said pinch roller can be selectively shifted to (1) a first position at which it comes into contacting relationship with the capstan being able to transport the film, and to (2) a second position at which the distance between itself and the capstan is largely separated to place the film in a free state between the pinch roller and the capstan;
• m. a secondary actuating means for controlling the shifting of the first actuating means, the opening and closing of the second switch and the shifting of the pinch roller, wherein said actuating means is associated with the shifting of the control means and can be selectively shifted to (1) a first position at which it is placed when the control means is placed at its first position to retain the first actuating means at its first position, and the second switch at an open state and also the pinch roller at its second position, respectively, and to (2) a second position at which it is placed when the control means is located at its first position to retain the first actuating means at its second position, and the second switch at a closed state and also the pinch roller at its first position, respectively;
• n. a mode change-over means to change over the channel through which the shifting power of the control means works on the first actuating means, wherein said change-over means can be selectively shifted to (1) a first position at which it is placed between the control means and the first actuating means to have said shifting of the control means directly operate on the first actuating means, and to (2) a second position at which it is placed between the control means and the second actuating means to have the shifting of the control means operate on the first actuating means through the second actuating means;
• o. a detector having a detecting portion positioned within the cartridge type detection perforated hole of the cartridge chamber for detecting the type of the film cartridge loaded into the cartridge chamber and a controlling portion to control the mode change-over means, wherein said detector can be changed over selectively to (1) a first position at which said detecting portion protrudes out of the perforated hole of the cartridge chamber into the cartridge chamber at the same time said controlling portion retains the mode change-over means at its first position, and to (2) a second position at which said detecting portion is retracted out of the cartridge chamber at the same time the controlling portion retains the mode changeover means at its second positon;
• and
• p. an urging means to always bias the detector to the direction of its first position;
• whereby, when the sound film cartridge is loaded into the second film cartridge, the detecting portion is retracted to outside of the cartridge chamber by the part contributing to formation of the second recording opening of the sound film cartridge resisting the biasing power of the urging means, while the detector is shifted from its first position to its second position.

A release device of a motion picture camera capable of simultaneous sound recording, which uses a roll of photographic sound film having a sound recording zone at its part, and transports said film to a picture formable position of a picture image forming means by a first film transport means, further having a capstan rotatable about a fixed axis and a movable pressure roller capable of shifting to a position to engage with said capstan and a position to disengage therefrom, being positioned for sandwiching the running path of said film, and can simultaneously record picture image information and sound information by transporting said film to a sound signal recordable position by a second transport means capable of feeding the film with almost constant speed as said pressure roller comes into pressing contact with said capstan, comprising:

• a. a first driving means to drive the first transport means;
• b. a first switch means to control initiation and stopping of the first driving means:
• c. a second driving means to drive the second transport means;
• d. a second switch means to control initiation and stopping of the second driving means;
• and
• e. a release means having:
• 1. a trigger means which can be selectively shifted to a first position to place the camera in an operating state, and to a second position to place the same in nonoperating state,
• 2. a first actuating means to control the first switch means, being able to be shifted to a first position to retain the first switch means in a closed state and to a second position to retain the same in an opened state,
• 3. a second actuating means to control the shifting of the pressure roller, being able to be shifted to a first position for retaining the pressure roller at its engaging position and to a second position for retaining the same at its disengaged position,
• 4. a third actuating means to control the second switch means and the first actuating means, being able to be shifted to (A) a first position for retaining the second switch means at closed state and retaining the first actuating means at its first position, and to (B) a second position for retaining the second switch means in an opened stated and retaining the first actuating means at its second position,
• 5. a fourth actuating means to receive the driving power of the second driving means for automatically conducting the shifting of the third actuating means, being able to be shifted to a first positon at which the third actuating means can be moved from its first position to its second position and to a second position at which the same can be moved from its second position to its first position, and
• 6. a fifth actuating means to control the shifting of the second actuating means and the fourth actuating means, wherein said fifth actuating means is so provided as being linked with the trigger means and can be shifted to (A) a first position to retain the second actuating means and the fourth actuating means at their first positions respectively as the trigger means is at its first position, and to (B) a second position to retain the second actuating means and the fourth actuating means at their second positions respectively as the trigger means is at its second position.

A sound motion picture camera capable of selectively using a strip of silent film able to record picture image information only and a strip of film able to record both picture image information and sound information, comprising:

• a. a first transport means for feeding intermittently the film to a picture forming position of a picture image forming means;
• b. a trigger means for controlling driving and stopping of the first transport means;
• c. a second transport means including:
• a capstan driven at a substantially constant speed and positioned at a side of the path of said film,
• a pinch roller provided in a position substantially facing said capstan across said film path, and
• a shifting means for displacing at least either one of said capstan and pinch roller with respect to each other from a first state wherein said capstan and pinch roller are mutually separated to allow insertion of film therebetween to a second state wherein said capstan and pinch roller are maintained in resilient contact, thereby allowing the transport of the film placed therebetween at a substantially constant speed adapted for sound recording thereon, said shifting means being operable in a selective mechanical link with said trigger means;
• and
• d. a change-over means capable of disconnecting selectively said mechanical link between said trigger means and said shifting means.

A sound motion picture camera capable of using a film cartridge containing a strip of silent film capable of recording both picture image information and sound information, comprising:

• a. a housing provided with a cartridge chamber for accommodating said film cartridge;
• b. a first transport means for feeding the film intermittently to a picture forming position of a picture image forming means;
• c. a trigger means for controlling driving and stopping of the first transport means;
• d. a second transport means including:
• a capstan driven at a substantially constant speed and positioned at a side of the path of said film,
• a pinch roller provided in a position substantially facing said capstan across said film path, and
• a shifting means for displacing at least either one of said capstan and pinch roller with respect to each other from a first state wherein said capstan and pinch roller are mutually separated to allow insertion of film therebetween to a second state wherein said capstan and pinch roller are maintained in resilient contact thereby allowing the transport of the film placed therebetween at a substantially constant speed adapted for sound recording thereon, said shifting means being operable in a selective mechanical link with said trigger means;
• and
• e. a means for detecting the loading of said film cartridge into said cartridge chamber and establishing said mechanical link between said trigger means and said shifting means upon such detection.

A sound motion picture camera having a cartridge chamber provided with a hole for detecting cartridge loading which hole is formed in a position opposite to one wall of a film cartridge when the film cartridge containing a strip of sound film capable of recording both picture image information and sound information is loaded, comprising:

• a. a first transport means for feeding the film intermittently to a picture forming position of a picture image forming means;
• b. a trigger means for controlling driving and stopping of the first transport means;
• c. a second transport means including:
• a capstan driven at a substantially constant speed and positioned at a side of the path of said film;
• a pinch roller provided in a position substantially facing said capstan across said film path;
• and
• a shifting means for displacing at least either one of said capstan and pinch roller with respect to each other from a first state wherein said capstan and pinch roller are mutually separated to allow insertion of film therebetween to a second state wherein said capstan and pinch roller are maintained in resilient contact thereby allowing the transport of the film placed therebetween at a substantially constant speed adapted for sound recording thereon, said shifting means being operable in a selective mechanical link with said trigger means;
• d. a detecting means having a detecting portion arranged in the detecting hole of the cartridge chamber for detecting the loading of a cartridge in the cartridge chamber, and a changing portion for mechanically linking the trigger means and the shifting means, said detecting means being movable to (1) a first position at which the detecting portion extends into the chamber and the changing portion puts the trigger means and the shifting means in a non-engaged state, and to (2) a second position where the detecting portion retards the chamber and the changing portion puts the trigger means the shifting means in engaged state;
• and
• e. biasing means for biasing the detecting means to the first position, whereby the detecting means is moved from the first position to the second position by the pressure of the cartridge against the biasing force of the biasing means when the cartridge is loaded in the cartridge chamber.