Film take-up reel

Claim 2

A film take-up reel having a hollow spool member with a longitudinal slot for receiving the film wherein said spool member defines an outer surface and an inner surface comprising: a. a tightening shaft member rotatably secured adjacent the hollow spool member and having an effective diameter substantially less than the effective diameter of the spool member; b. said spool member defining a slot extending substantially the entire length of the spool member and extending through the outer surface and the inner surface; c. said tightening shaft member being rotatably secured adjacent said slot and registering with said slot along the internal surface of said spool; d. said tightening shaft member having a shaft slot extending entirely therethrough and registering with said spool slot for receiving a portion of the film when in a predetermined open position; and e. said shaft slot cooperating with said spool slot for imparting convolutions to the film by rotation of said shaft to a predetermined closed position to secure the film to the spool the open and closed positions being maintainable in the absence of a portion of film.

Claim 3

The film take-up reel according to claim 1 wherein said shaft member having an outer shaft surface and being located such that the outer shaft surface adjacent the inner surface of the spool is displaced from the inner surface of the spool a distance slightly greater than the thickness of the film.

Claim 4

The film take-up reel according to claim 2 wherein the axis of the shaft member is located between the axis of the spool and the inner surface of the spool in the vicinity of the spool slot.

Claim 5

The film take-up reel according to claim 3 further comprising a detent means for holding the tightening shaft member in an open position for receiving the film and in a closed position for securing the film to the spool.

Claim 6

The film take-up reel according to claim 4 wherein said detent means includes a pin extending entirely through the tightening shaft member, a groove in the spool surface for engagement with said pin; a spring means for biasing the pin toward the groove such that rotation of the tightening shaft member cannot be accomplished until the bias of the spring is overcome to displace the pin from the groove allowing rotation of the shaft.

Claim 7

The film take-up reel according to claim 5 wherein at least one knob member is fixed to the tightening shaft thereby enabling an operator to rotate said tightening shaft member relative to the spool.

Claim 8

The film take-up reel according to claim 6 wherein said spool defines an end member located at each end of the spool, a boss extends from each end member having engaging means for rotatably securing the spool in a cassette.

Claim 9

The film take-up reel according to claim 7 wherein said reel is configured for operation in a phototypesetting apparatus having a camera for exposing film passed through the camera, wherein said engaging means cooperates with complementary engaging means defined by the cassette in said phototypesetting apparatus for taking up exposed film as said film is played off from the camera.

Claim 10

The film take-up reel according to claim 8 wherein engaging means includes a cylindrical boss extending from each end member and having an axis coextensive with the axis of said spool, said boss having a female portion defined in an unsupported part of said boss for receiving a male portion in the complementary engaging means defined by said cassette.

Claim 11

The film take-up reel according to claim 9 wherein said spool slot is defined by two substantially parallel spool slot surfaces, said shaft slot being defined by two substantially parallel shaft slot surfaces, one of said shaft slot surfaces lying substantially in the same plane as one of said spool slot surfaces.

Claim 12

The film take-up reel according to claim 10 wherein said shaft member is rotatable from the closed position to the open position with film wound about the spool for allowing release of the film before the film has been entirely played off from the film take-up reel.

Claim 13

A film take-up reel having a hollow spool member with a longitudinal slot for receiving the film wherein said spool member defines an outer surface and an inner surface comprising: a. a tightening shaft member having an effective diameter substantially less than the effective diameter of the spool member; b. said spool member defining a slot extending substantially the entire length of the spool member and extending through the outer surface and the inner surface; c. said tightening shaft member being rotatably secured adjacent said slot and registering with said slot along the internal surface of said spool; d. said tightening shaft member having a shaft slot extending entirely therethrough and registering with said spool slot for receiving a portion of the film; e. said shaft slot cooperating with said spool slot for imparting convolutions to the film by rotation of said shaft to secure the film to the spool; f. said shaft member having an axis located between the inner surface of the spool and the axis of the spool in the vicinity of the spool slot, said shaft member defining an outer shaft surface being displaced from the inner surface of the spool a distance slightly greater than the thickness of the film; g. said shaft member being rotatable between an open position for receiving and releasing the film and a closed position for securing the film to the spool; and h. a detent means cooperating with said shaft member and said spool member for holding the shaft member in an open position to receive the film and in a closed position to secure the film to the spool.

Claim 14

A film take-up reel having a hollow spool member with a longitudinal slot for receiving the film wherein said spool member defines an outer surface and an inner surface comprising: a. a tightening shaft member having an effective diameter substantially less than the effective diameter of the spool member; b. said spool member defining a slot extending substantially the entire length of the spool member and extending through the outer surface and the inner surface; c. said tightening shaft member being rotatably secured adjacent said slot and registering with said slot along the internal surface of said spool; d. said tightening shaft member having a shaft slot extending entirely therethrough and registering with said spool slot for receiving a portion of the film; e. said shaft slot cooperating with said spool slot for imparting convolutions to the film by rotation of said shaft to secure the film to the spool; f. said shaft member having an axis located between the inner surface of the spool and the axis of the spool in the vicinity of the spool slot, said shaft member defining an outer shaft surface being displaced from the inner surface of the spool a distance slightly greater than the thickness of the film; g. said shaft member being rotatable between an open position for receiving and releasing the film and a closed position for securing the film to the spool; and h. a detent means cooperating with said shaft member and said spool member for holding the shaft member in an open position to receive the film and in a closed position to secure the film to the spool.

Claim 15

A film take-up reel having a hollow spool member with a longitudinal slot for receiving the film wherein said spool member defines an outer surface and an inner surface comprising: a. a tightening shaft member having an effective diameter substantially less than the effective diameter of the spool member; b. said spool member defining a slot extending substantially the entire length of the spool member and extending through the outer surface and the inner surface; c. said tightening shaft member being rotatably secured adjacent said slot and registering with said slot along the internal surface of said spool; d. said tightening shaft member having a shaft slot extending entirely therethrough and registering with said spool slot for receiving a portion of the film; e. said shaft slot cooperating with said spool slot for imparting convolutions to the film by rotation of said shaft to secure the film to the spool; and f. a detent means for holding the tightening shaft member in at least one predetermined position.

Claim 16

A film take-up reel having a hollow spool member with a longitudinal slot for receiving the film wherein said spool member defines an outer surface and an inner surface comprising: a. a tightening shaft member having an effective diameter substantially less than the effective diameter of the spool member; b. said spool member defining a slot extending substantially the entire length of the spool member and extending through the outer surface and the inner surface; c. said tightening shaft member being rotatably secured adjacent said slot and registering with said slot along the internal surface of said spool; d. said tightening shaft member having a shaft slot extending entirely therethrough and registering with said spool slot for receiving a portion of the film; e. said shaft slot cooperating with said spool slot for imparting convolutions to the film by rotation of said shaft to secure the film to the spool; and f. a detent means for holding the tightening shaft member in at least one predetermined position.

Claim 17

A film take-up reel having a hollow spool member with a longitudinal slot for receiving the film wherein said spool member defines an outer surface and an inner surface comprising: a. a tightening shaft member having an effective diameter substantially less than the effective diameter of the spool member; b. said spool member defining a slot extending substantially the entire length of the spool member and extending through the outer surface and the inner surface; c. said tightening shaft member being rotatably secured adjacent said slot and registering with said slot along the internal surface of said spool; d. said tightening shaft member having a shaft slot extending entirely therethrough and registering with said spool for receiving a portion of the film, said shaft slot cooperating with said spool slot for imparting convolutions to the film by rotation of said shaft to secure the film to the spool; and e. a detent means for holding the tightening shaft member in an open position for receiving the film and in a closed position for securing the film, said detent means having a pin extending entirely through the tightening shaft member, a groove in the spool surface for engagement with said pin, a spring means for biasing the pin toward the groove in a manner such that rotation of the tightening shaft member cannot be accomplished until the bias of the spring is overcome to displace the pin from the groove allowing rotation of the shaft.

Claim 18

A film take-up reel having a hollow spool member with a longitudinal slot for receiving the film wherein said spool member defines an outer surface and an inner surface comprising: a. a tightening shaft member having an effective diameter substantially less than the effective diameter of the spool member; b. said spool member defining a slot extending substantially the entire length of the spool member and extending through the outer surface and the inner surface; c. said tightening shaft member being rotatably secured adjacent said slot and registering with said slot along the internal surface of said spool; d. said tightening shaft member having a shaft slot extending entirely therethrough and registering with said spool for receiving a portion of the film, said shaft slot cooperating with said spool slot for imparting convolutions to the film by rotation of said shaft to secure the film to the spool; and e. a detent means for holding the tightening shaft member in an open position for receiving the film and in a closed position for securing the film, said detent means having a pin extending entirely through the tightening shaft member, a groove in the spool surface for engagement with said pin, a spring means for biasing the pin toward the groove in a manner such that rotation of the tightening shaft member cannot be accomplished until the bias of the spring is overcome to displace the pin from the groove allowing rotation of the shaft.