Multiple exposure structure for cameras

Claim 2

In a camera, film-transporting means, transmission means for transmitting movement to said film-transporting means, clutch means operatively connected between said transmission means and film-transporting means and having an engaged position for transmitting movement between said transmission means and filmtransporting means and a disengaged position for preventing transmission of movement from said transmission means to said film-transporting means, take-up spool means for taking up exposed film, connecting means connecting said transmission means to said spool means for turning the latter except when said spool means is blocked against movement, blocking means having a nonblocking position freeing said spool means to be turned by said transmission means and a blocking position engaging said spool means to block the latter against movement when said transmission means operates, and manually operable means having a rest position at which said blocking means is in said non-blocking position thereof and said clutch means is in said engaged position thereof, said manually operable means having a rewind position cooperating with said clutch means for placing the latter in said disengaged position thereof while said blocking means still remains in said non-blocking position thereof, and said manually operable means having a multiple exposure position cooperating both with said blocking means and said clutch means for placing said blocking means in said blocking position thereof and said clutch means in said disengaged position thereof so that in said multiple exposure position of said manually operable means said transmission means may be operated simultaneously with cocking of a shutter of the camera without transporting film while when said manually operable means is in said rewind position thereof film may be rewound from said take-up spool back into a film cartridge, said transmission means acting through said clutch means, when the latter is engaged, on said filmtransporting means for transporting film frame-by-frame during successive operating cycles of said transmission means, respectively, and safety means cooperating with said manually operable means for preventing the latter from assuming said multiple exposure position except at the end of one complete operating cycle of said transmission means when transportation of a complete frame has been completed and the next operating cycle for transporting the next film frame has not yet started.

Claim 3

The combination of claim 1 and wherein said safety means cooperates with manually operable means to permit the latter to assume said rewind position without being influenced by said safety means.

Claim 4

The cOmbination of claim 1 and wherein said manually operable means includes a pair of manually engageable members accessible to the operator for manual movement, one of said members being a rewind member operatively connected with said clutch means for displacing the latter from said engaged to said disengaged position while the other of said members is a multiple exposure member cooperating with said blocking means for displacing the latter to said blocking position when said multiple exposure member is moved by the operator, said multiple exposure member cooperating with said rewind member for automatically displacing the latter to locate said clutch means in said disengaged position thereof when said multiple exposure member is moved by the operator while said rewind member is movable by the operator independently of said multiple exposure member so that only said rewind member is moved when said manually operable means is in said rewind position thereof while both of said members are moved when said manually operable means is in said multiple exposure position thereof.

Claim 5

The combination of claim 3 and wherein a retaining means cooperates with said rewind member and said clutch means for releasably retaining said clutch means in said disengaged position thereof when said manually operable means is displaced from said rest position thereof to said rewind position thereof, and said multiple exposure member cooperating with said retaining means for preventing the latter from assuming a position retaining said clutch means in said disengaged position thereof when said multiple exposure member is moved by the operator to place said manually operable means in said multiple exposure position thereof.

Claim 6

The combination of claim 4 and wherein said transmission means cooperates with said retaining means for displacing the latter away from a retaining position, thus permitting said clutch means to resume its engaged position, after said manually operable means has been placed in said rewind position and said transmission means is operated to resume transporting of film through said film-transporting means.

Claim 7

The combination of claim 1 and wherein said transmission means includes a rotary shaft and said take-up spool means has a hollow interior in which said shaft is located, said connecting means including an inner surface portion of said take-up spool means and an outer surface portion of said shaft frictionally engaging each other.

Claim 8

In a camera, film-transporting means, transmission means for transmitting movement to said film-transporting means, clutch means operatively connected between said transmission means and film-transporting means and having an engaged position for transmitting movement between said transmission means and film-transporting means and a disengaged position for preventing transmission of movement from said transmission means to said film-transporting means, take-up spool means for taking up exposed film, connecting means connecting said transmission means to said spool means for turning the latter except when said spool means is blocked against movement, blocking means having a non-blocking position freeing said spool means to be turned by said transmission means and a blocking position engaging said spool means to block the latter against movement when said transmission means operates, and manually operable means having a rest position at which said blocking means is in said non-blocking position thereof and said clutch means is in said engaged position thereof, said manually operable means having a rewind position cooperating with said clutch means for placing the latter in said disengaged position thereof while said blocking means still remains in said non-blocking position thereof, and said manually operable means having a multiple exposure position cooperating both with said blocking means and said clutch means for placing said blocking means in said blocking position thereof and said clutch means in said disengaged position thereof So that in said multiple exposure position of said manually operable means said transmission means may be operated simultaneously with cocking of a shutter of the camera without transporting film while when said manually operable means is in said rewind position thereof film may be rewound from said take-up spool back into a film cartridge, said manually operable means including a pair of manually engageable members accessible to the operator for manual movement, one of said members being a rewind member operatively connected with said clutch means for displacing the latter from said engaged to said disengaged position while the other of said members is a multiple exposure member cooperating with said blocking means for displacing the latter to said blocking position when said multiple exposure member is moved by the operator, said multiple exposure member cooperating with said rewind member for automatically displacing the latter to locate said clutch means in said disengaged position thereof when said multiple exposure member is moved by the operator while said rewind member is movable by the operator independently of said multiple exposure member so that only said rewind member is moved from said manually operable means is in said rewind position thereof while both of said members are moved when said manually operable means is in said multiple exposure position thereof, a retaining means cooperating with said rewind member and said clutch means for releasably retaining said clutch means in said disengaged position thereof when said manually operable means is displaced from said rest position thereof to said rewind position thereof, and said multiple exposure member cooperating with said retaining means for preventing the latter from assuming a position retaining said clutch means in said disengaged position thereof when said multiple exposure member is moved by the operator to place said manually operable means in said multiple exposure position thereof, said transmission means cooperating with said retaining means for displacing the latter away from a retaining position, thus permitting said clutch means to resume its engaged position, after said manually operable means has been placed in said rewind position and said transmission means is operated to resume transporting of film through said film-transporting means, a safety means cooperating with said multiple exposure member for preventing movement thereof to displace said blocking means from said non-blocking to said blocking position thereof except when said transmission means has completed an operating cycle during which a complete film frame has been moved, a support means toward which said multiple exposure member is moved to displace said blocking means from said non-blocking to said blocking position thereof, said safety means including a plate movably carried by said support means and normally situated in a safety position between said support means and multiple exposure member to prevent movement thereof, said transmission means including a cam means for engaging said plate and displacing the latter away from said safety position to a release position where it is not located between said multiple exposure member and said support means only upon completion of an operating cycle of said transmission means, so that except when a complete film frame has been moved said plate prevents actuation of said multiple exposure member by the operator at least to an extent sufficient to locate said blocking means in said blocking position thereof.

Claim 9

In a camera, film-transporting means, transmission means for transmitting movement to said film-transporting means, clutch means operatively connected between said transmission means and film-transporting means and having an engaged position for transmitting movement between said transmission means and film-transporting means and a disengaged position for preventing transmission of movement from said transmission means to said film-transporting means, take-up spool means for taking up exposed film, connecting means connecting said transmission means to said spool means for turning the latter except when said spool means is blocked against movement, blocking means having a non-blocking position freeing said spool means to be turned by said transmission means and a blocking position engaging said spool means to block the latter against movement when said transmission means operates, and manually operable means having a rest position at which said blocking means is in said non-blocking position thereof and said clutch means is in said engaged position thereof, said manually operable means having a rewind position cooperating with said clutch means for placing the latter in said disengaged position thereof while said blocking means still remains in said non-blocking position thereof, and said manually operable means having a multiple exposure position cooperating both with said blocking means and said clutch means for placing said blocking means in said blocking position thereof and said clutch means in said disengaged position thereof So that in said multiple exposure position of said manually operable means said transmission means may be operated simultaneously with cocking of a shutter of the camera without transporting film while when said manually operable means is in said rewind position thereof film may be rewound from said take-up spool back into a film cartridge, said manually operable means including a pair of manually engageable members accessible to the operator for manual movement, one of said members being a rewind member operatively connected with said clutch means for displacing the latter from said engaged to said disengaged position while the other of said members is a multiple exposure member cooperating with said blocking means for displacing the latter to said blocking position when said multiple exposure member is moved by the operator, said multiple exposure member cooperating with said rewind member for automatically displacing the latter to locate said clutch means in said disengaged position thereof when said multiple exposure member is moved by the operator while said rewind member is movable by the operator independently of said multiple exposure member so that only said rewind member is moved from said manually operable means is in said rewind position thereof while both of said members are moved when said manually operable means is in said multiple exposure position thereof, a retaining means cooperating with said rewind member and said clutch means for releasably retaining said clutch means in said disengaged position thereof when said manually operable means is displaced from said rest position thereof to said rewind position thereof, and said multiple exposure member cooperating with said retaining means for preventing the latter from assuming a position retaining said clutch means in said disengaged position thereof when said multiple exposure member is moved by the operator to place said manually operable means in said multiple exposure position thereof, said transmission means cooperating with said retaining means for displacing the latter away from a retaining position, thus permitting said clutch means to resume its engaged position, after said manually operable means has been placed in said rewind position and said transmission means is operated to resume transporting of film through said film-transporting means, a safety means cooperating with said multiple exposure member for preventing movement thereof to displace said blocking means from said non-blocking to said blocking position thereof except when said transmission means has completed an operating cycle during which a complete film frame has been moved, a support means toward which said multiple exposure member is moved to displace said blocking means from said non-blocking to said blocking position thereof, said safety means including a plate movably carried by said support means and normally situated in a safety position between said support means and multiple exposure member to prevent movement thereof, said transmission means including a cam means for engaging said plate and displacing the latter away from said safety position to a release position where it is not located between said multiple exposure member and said support means only upon completion of an operating cycle of said transmission means, so that except when a complete film frame has been moved said plate prevents actuation of said multiple exposure member by the operator at least to an extent sufficient to locate said blocking means in said blocking position thereof.

Claim 10

The combination of claim 7 and wherein a pin is situated between said plate and said support means to prevent deflection of said plate excessively by the operator when the operator attempts to move said multiple exposure member to place said blocking means in said blocking position thereof at a time other than when a complete film frame has been moved by said transmission means.

Claim 11

In a camera, film-transporting means, transmission means for transmitting movement to said film-trAnsporting means, clutch means operatively connected between said transmission means and film-transporting means and having an engaged position for transmitting movement between said transmission means and film-transporting means and a disengaged position for preventing transmission of movement from said transmission means to said film-transporting means, take-up spool means for taking up exposed film, connecting means connecting said transmission means to said spool means for turning the latter except when said spool means is blocked against movement, blocking means having a non-blocking position freeing said spool means to be turned by said transmission means and a blocking position engaging said spool means to block the latter against movement when said transmission means operates, and manually operable means having a rest position at which said blocking means is in said non-blocking position thereof and said clutch means is in said engaged position thereof, said manually operable means having a rewind position cooperating with said clutch means for placing the latter in said disengaged position thereof while said blocking means still remains in said non-blocking position thereof, and said manually operable means having a multiple exposure position cooperating both with said blocking means and said clutch means for placing said blocking means in said blocking position thereof and said clutch means in said disengaged position thereof so that in said multiple exposure position of said manually operable means said transmission means may be operated simultaneously with cocking of a shutter of the camera without transporting the film while when said manually operable means is in said rewind position thereof film may be rewound from said take-up spool back into a film cartridge, said transmission means acting through said clutch means, when the latter is engaged, on said film-transporting means for transporting film frame-by-frame during successive operating cycles of said transmission means, respectively, and safety means cooperating with said manually operable means for preventing the latter from assuming said multiple exposure position except at the end of one complete operating cycle of said transmission means when transportation of a complete frame has been completed and the next operating cycle for transporting the next film frame has not yet started, a support means toward which said manually operable means is moved for assuming said multiple exposure position, said safety means including a plate normally situated between said support means and said manually operable means for preventing movement of the latter to said multiple exposure position, and said transmission means including a cam means which acts on said plate for situating the latter at a release position where it is no longer situated between said manually operable means and said support means only when said transmission means has completed an operating cycle and has not yet started the next operating cycle, so that only at the latter time can said manually operable means be placed in said multiple exposure position thereof.

Claim 12

In a camera, film-transporting means, transmission means for transmitting movement to said film-trAnsporting means, clutch means operatively connected between said transmission means and film-transporting means and having an engaged position for transmitting movement between said transmission means and film-transporting means and a disengaged position for preventing transmission of movement from said transmission means to said film-transporting means, take-up spool means for taking up exposed film, connecting means connecting said transmission means to said spool means for turning the latter except when said spool means is blocked against movement, blocking means having a non-blocking position freeing said spool means to be turned by said transmission means and a blocking position engaging said spool means to block the latter against movement when said transmission means operates, and manually operable means having a rest position at which said blocking means is in said non-blocking position thereof and said clutch means is in said engaged position thereof, said manually operable means having a rewind position cooperating with said clutch means for placing the latter in said disengaged position thereof while said blocking means still remains in said non-blocking position thereof, and said manually operable means having a multiple exposure position cooperating both with said blocking means and said clutch means for placing said blocking means in said blocking position thereof and said clutch means in said disengaged position thereof so that in said multiple exposure position of said manually operable means said transmission means may be operated simultaneously with cocking of a shutter of the camera without transporting the film while when said manually operable means is in said rewind position thereof film may be rewound from said take-up spool back into a film cartridge, said transmission means acting through said clutch means, when the latter is engaged, on said film-transporting means for transporting film frame-by-frame during successive operating cycles of said transmission means, respectively, and safety means cooperating with said manually operable means for preventing the latter from assuming said multiple exposure position except at the end of one complete operating cycle of said transmission means when transportation of a complete frame has been completed and the next operating cycle for transporting the next film frame has not yet started, a support means toward which said manually operable means is moved for assuming said multiple exposure position, said safety means including a plate normally situated between said support means and said manually operable means for preventing movement of the latter to said multiple exposure position, and said transmission means including a cam means which acts on said plate for situating the latter at a release position where it is no longer situated between said manually operable means and said support means only when said transmission means has completed an operating cycle and has not yet started the next operating cycle, so that only at the latter time can said manually operable means be placed in said multiple exposure position thereof.