Motion picture viewer with removable cartridge

Claim 2

In a motion picture apparatus, a housing, a cartridge removably mounted in said housing, said cartridge being formed with an aperture, a length of film disposed in the cartridge, means for advancing said length of film frame by frame past the aperture in the cartridge, said housing having a diffuser window for admitting light therethrough, a member mounted in the cartridge and adapted to be exposed to the light for supplying light to the film on the side of the film opposite the aperture, and an optical assembly mounted in the housing in the front of the aperture in the cartridge for forming an image of the film as it is advanced in the cartridge.

Claim 3

A viewer as in claim 1 in which at least a portion of the cartridge is substantially transparent to permit the light to pass therethrough to said member.

Claim 4

In a motion picture apparatus, a housing, a cartridge removably mounted in said housing, said cartridge being formed with an aperture, a length of film disposed in the cartridge, means for advancing said length of film frame by frame past the aperture in the cartridge, said means for advancing the film being formed so that the film can be advanced in either of two directions, means mounted in the cartridge and adapted to be exposed to light for supplying light to the film on the side of the film opposite the aperture, and an optical assembly mounted in the housing in the front of the aperture in the cartridge to form an image of the film as it is advanced in the cartridge, said means for advancing the film including a driven sprocket forming the sole driven sprocket engaging the film, a driven member mounted on the cartridge and having a driving relationship with respect to the driven sprocket, the sole function of said driven member being to drive said driven sprocket, a drive member carried by the housing and adapted to engage the driven member when the cartridge is in the housing to drive the same, and crank means mounted on the housing and connected to the drive member for rotating the drive member.

Claim 5

In a motion picture apparatus, a housing, a cartridge removably mounted in said housing, said cartridge being formed with an aperture, a length of film disposed in the cartridge, means for advancing said length of film frame by frame past the aperture in the cartridge, said means for advancing the film being formed so that the film can be advanced in either of two directions, means mounted in the cartridge and adapted to be exposed to light for supplying light to the film on the side of the film opposite the aperture, and an optical assembly mounted in the housing in the front of the aperture in the cartridge to form an image of the film as it is advanced in the cartridge, said means for advancing the film including a driven sprocket forming the sole driven sprocket engaging the film, a driven member mounted on the cartridge and having a driving relationship with respect to the driven sprocket, the sole function of said driven member being to drive said driven sprocket, a drive member carried by the housing and adapted to engage the driven member when the cartridge is in the housing to drive the same, and crank means mounted on the housing and connected to the drive member for rotating the drive member.

Claim 6

A motion picture viewer as in claim 3 together with spring means mounted in the housing for urging the drive member and driven member into engagement with each other when the cartridge is in the housing.

Claim 7

In a motion picture apparatus, a housing, a cartridge removably mounted in said housing, said cartridge being formed with an aperture, a length of film disposed in the cartridge, means for advancing said length of film frame by frame past the aperture in the cartridge comprising upper and lower guide film members, said guide members having arcuate portions disposed on opposite sides of said sprocket and serving to retain said film in engagement with the said sprocket, upper and lower film rollers within the cartridge disposed adjacent the aperture in the cartridge and above and below the aperture in the cartridge, and yieldable spring means mounted in the cartridge for urging said rollers in a direction to move the fiLm into close proximity with the aperture, means mounted in the cartridge and exposed to light for supplying light to the film on the side of the film opposite the aperture, and an optical assembly mounted in the housing in the front of the aperture in the cartridge to cause formation of an image of the film in the optical assembly as the film is advancing in the cartridge.

Claim 8

In a motion picture apparatus, a housing, a cartridge removably mounted in said housing, said cartridge being formed with an aperture, a length of film disposed in the cartridge, means for advancing said length of film frame by frame past the aperture in the cartridge comprising upper and lower guide film members, said guide members having arcuate portions disposed on opposite sides of said sprocket and serving to retain said film in engagement with the said sprocket, upper and lower film rollers within the cartridge disposed adjacent the aperture in the cartridge and above and below the aperture in the cartridge, and yieldable spring means mounted in the cartridge for urging said rollers in a direction to move the fiLm into close proximity with the aperture, means mounted in the cartridge and exposed to light for supplying light to the film on the side of the film opposite the aperture, and an optical assembly mounted in the housing in the front of the aperture in the cartridge to cause formation of an image of the film in the optical assembly as the film is advancing in the cartridge.

Claim 9

A viewer as in claim 3 wherein said cartridge is provided with an index plate and in which the aperture in the cartridge is in the index plate, and wherein a pair of index pins are mounted on said index plate above and below the aperture and are adapted to be engaged by the perforations in the film on one side of the film.

Claim 10

A viewer as in claim 3 wherein said cartridge has a continuous loop of film therein with upper and lower runs, and means within said cartridge for forming a roll of said film whereby film can be payed off from either the inside or the outside of said roll.

Claim 11

In a motion picture apparatus, a housing, a cartridge removably mounted in said housing, said cartridge being formed with an aperture, a length of film disposed in the cartridge, means for advancing said length of film frame by frame past the aperture in the cartridge, means mounted in the cartridge and exposed to light for supplying light to the film on the side of the film opposite the aperture, and an optical assembly mounted in the housing in the front of the aperture in the cartridge to form an image of the film as it is advanced in the cartridge, said cartridge having a continuous loop of film therein with upper and lower runs, a single sprocket engaging both said upper and lower runs, means within said cartridge for forming a roll of said film whereby film can be payed off from either the inside or the outside of said roll, said cartridge including a box-like framework and a cover for said box-like framework and wherein said means within said cartridge for forming a roll of said film includes a generally circular guide member carried by said box-like framework, a cylindrical member mounted on said cover, a generally J-shaped guide member mounted on said cover and having one extremity of the same terminating in a region which is generally tangential to said cylinder, and an additional guide member mounted on said cover and having one portion thereof which is adjacent said J-shaped member and another portion thereof which is adjacent said cylinder to form a slot for the travel of said film, said J-shaped member forming in cooperation with said circular guide member in said box-like framework a slot for the travel of said film.

Claim 12

In a motion picture apparatus, a housing, a cartridge removably mounted in said housing, said cartridge being formed with an aperture, a length of film disposed in the cartridge, means for advancing said length of film frame by frame past the aperture in the cartridge, means mounted in the cartridge and exposed to light for supplying light to the film on the side of the film opposite the aperture, and an optical assembly mounted in the housing in the front of the aperture in the cartridge to form an image of the film as it is advanced in the cartridge, said cartridge having a continuous loop of film therein with upper and lower runs, a single sprocket engaging both said upper and lower runs, means within said cartridge for forming a roll of said film whereby film can be payed off from either the inside or the outside of said roll, said cartridge including a box-like framework and a cover for said box-like framework and wherein said means within said cartridge for forming a roll of said film includes a generally circular guide member carried by said box-like framework, a cylindrical member mounted on said cover, a generally J-shaped guide member mounted on said cover and having one extremity of the same terminating in a region which is generally tangential to said cylinder, and an additional guide member mounted on said cover and having one portion thereof which is adjacent said J-shaped member and another portion thereof which is adjacent said cylinder to form a slot for the travel of said film, said J-shaped member forming in cooperation with said circular guide member in said box-like framework a slot for the travel of said film.

Claim 13

A removable cartridge for use in a motion picture apparatus of the type having a housing for receiving the cartridge, driving means for the cartridge and an optical assembly for forming an image, said cartridge comprising means forming a framework having an index plate, said index plate having an aperture therein substantially in alignment with the eye piece assembly when the cartridge is disposed in the housing, said index plate having a pair of index pins spaced from each other on opposite sides of the aperture, a continuous loop of perforated film having upper and lower runs, guide means for guiding said film along said index plate past said aperture between said upper and lower runs, means within the cartridge for receiving light and for supplying light to the film on the side of the film opposite the aperture whereby said film is illuminated and an image formed in the optical assembly, a single sprocket rotatably mounted in the cartridge for rotation in either of two directions and adapted to be driven by the driving means, said sprocket engaging both said upper and lower runs and being the sole driven sprocket engaging said upper and lower runs, and means within said cartridge for forming a roll of said film enabling the film to be payed off from or taken up on either the inside or the outside of said roll, said pins being disposed in the directions of travel of the film And adapted to engage the perforations in the film.

Claim 14

A removable cartridge for use in a motion picture apparatus of the type having a housing for receiving the cartridge, driving means for the cartridge and an optical assembly for forming an image, said cartridge comprising means forming a framework having an index plate, said index plate having an aperture therein substantially in alignment with the eye piece assembly when the cartridge is disposed in the housing, said index plate having a pair of index pins spaced from each other on opposite sides of the aperture, a continuous loop of perforated film having upper and lower runs, guide means for guiding said film along said index plate past said aperture between said upper and lower runs, means within the cartridge for receiving light and for supplying light to the film on the side of the film opposite the aperture whereby said film is illuminated and an image formed in the optical assembly, a single sprocket rotatably mounted in the cartridge for rotation in either of two directions and adapted to be driven by the driving means, said sprocket engaging both said upper and lower runs and being the sole driven sprocket engaging said upper and lower runs, and means within said cartridge for forming a roll of said film enabling the film to be payed off from or taken up on either the inside or the outside of said roll, said pins being disposed in the directions of travel of the film And adapted to engage the perforations in the film.

Claim 15

A cartridge for retaining a continuous loop of perforated film for display in apparatus of the type having a housing for receiving the cartridge, driving means for the cartridge and an optical assembly, said cartridge comprising means forming a framework having an index plate, said index plate having an aperture substantially in alignment with the optical assembly when said cartridge is received in the housing, guide means for forming the film into upper and lower runs, additional guide means for guiding the film along said index plate past said aperture between the upper and lower runs, said index plate having a pair of index pins spaced from each other on opposite sides of the aperture for engaging the perforations in the film, means for receiving and supplying light to the side of the film opposite the aperture whereby the film is illuminated and an image is formed by the optical assembly, a single sprocket engaging both the upper and lower runs and adapted to be rotated in either of two different directions by the driving means when said cartridge is received in the housing, and means within the cartridge for forming a roll of the film whereby film can be payed off from or taken up on either the inside or the outside of the roll.

Claim 16

A cartridge for retaining a continuous loop of perforated film for display in apparatus of the type having a housing for receiving the cartridge, driving means for the cartridge and an optical assembly, said cartridge comprising means forming a framework having an index plate, said index plate having an aperture substantially in alignment with the optical assembly when said cartridge is received in the housing, guide means for forming the film into upper and lower runs, additional guide means for guiding the film along said index plate past said aperture between the upper and lower runs, said index plate having a pair of index pins spaced from each other on opposite sides of the aperture for engaging the perforations in the film, means for receiving and supplying light to the side of the film opposite the aperture whereby the film is illuminated and an image is formed by the optical assembly, a single sprocket engaging both the upper and lower runs and adapted to be rotated in either of two different directions by the driving means when said cartridge is received in the housing, and means within the cartridge for forming a roll of the film whereby film can be payed off from or taken up on either the inside or the outside of the roll.

Claim 17

In a motion picture apparatus, a housing having an opening in the rear thereof, a cartridge adapted to be removably mounted in said housing by insertion through the opening, said cartridge being formed with an aperture, a length of film disposed in the cartridge, said cartridge including driven means for advancing said length of film past the aperture, said housing having driving means, and spring means mounted in said housing for yieldably engaging said cartridge to retain it in the housing and yieldably urging said driven means into engagement with said driving means when said cartridge is inserted into the opening.

Claim 18

In a motion picture apparatus, a housing having an opening in the rear thereof, a cartridge adapted to be removably mounted in said housing by insertion through the opening, said cartridge being formed with an aperture, a length of film disposed in the cartridge, said cartridge including driven means for advancing said length of film past the aperture, said housing having driving means, and spring means mounted in said housing for yieldably engaging said cartridge to retain it in the housing and yieldably urging said driven means into engagement with said driving means when said cartridge is inserted into the opening.

Claim 19

A cartridge for use in a motion picture apparatus of the type having a housing for receiving the cartridge, reversible driving means for the cartridge and an optical assembly, said cartridge comprising means forming a framework having an index plate, said index plate having an aperture substantially in alignment with the optical assembly when the cartridge is disposed in the housing, a length of perforated film in said cartridge having upper and lower runs and having perforations on at least one side, guide means for guiding said film along said index plate past said aperture between said upper and lower runs, said index plate having a pair of index pins spaced from each other along the index plate in the direction of film travel and adapted to engage the perforations, a pair of film engaging members mounted in spaced relationship with respect to each other along the direction of film travel and adjacent said index pins, spring means engaging said film engaging members for yieldably urging said members and said film against said index plate whereby said index pins engage the perforations in the film so that said film is selectively advanced on a frame by frame basis past the aperture in either of two directions in response to the reversible driving means for the cartridge.

Claim 20

A cartridge for use in a motion picture apparatus of the type having a housing for receiving the cartridge, reversible driving means for the cartridge and an optical assembly, said cartridge comprising means forming a framework having an index plate, said index plate having an aperture substantially in alignment with the optical assembly when the cartridge is disposed in the housing, a length of perforated film in said cartridge having upper and lower runs and having perforations on at least one side, guide means for guiding said film along said index plate past said aperture between said upper and lower runs, said index plate having a pair of index pins spaced from each other along the index plate in the direction of film travel and adapted to engage the perforations, a pair of film engaging members mounted in spaced relationship with respect to each other along the direction of film travel and adjacent said index pins, spring means engaging said film engaging members for yieldably urging said members and said film against said index plate whereby said index pins engage the perforations in the film so that said film is selectively advanced on a frame by frame basis past the aperture in either of two directions in response to the reversible driving means for the cartridge.

Claim 21

A cartridge for use in a motion picture apparatus of the type having a housing for receiving the cartridge, driving means for the cartridge and an optical assembly, said cartridge comprising means forming a framework having an index plate, said index plate having an aperture therein substantially in alignment with the optical assembly when the cartridge is disposed in the housing, a continuous loop of perforated film having upper and lower runs, guide means for guiding said film along said index plate past said aperture between said upper and lower runs, means within the cartridge for supplying light to the film on the side of the film opposite the aperture whereby said film is illuminated and an image formed in the optical assembly, a single sprocket engaging both said upper and loweR runs and adapted to be driven by the driving means and means within said cartridge for forming a roll of film, said means for forming a roll of film being formed so that the film can be payed off from or taken up on either the inside or the outside of said roll, said means forming a roll of said film comprising a generally circular film storage guide exterior to said roll of film, a generally circular spool interior to said roll of film, a first guide member forming with said circular film storage guide an elongated slot extending generally between said sprocket and the outside of said roll of film for guiding said upper run of film onto or off of the outside of said roll of film, a second guide member forming with said first guide member a second elongated slot extending generally between said sprocket and the inside of said roll of film adjacent said circular spool for guiding said lower run of film onto or off of the inside of said roll of film.

Claim 22

A cartridge for use in a motion picture apparatus of the type having a housing for receiving the cartridge, driving means for the cartridge and an optical assembly, said cartridge comprising means forming a framework having an index plate, said index plate having an aperture therein substantially in alignment with the optical assembly when the cartridge is disposed in the housing, a continuous loop of perforated film having upper and lower runs, guide means for guiding said film along said index plate past said aperture between said upper and lower runs, means within the cartridge for supplying light to the film on the side of the film opposite the aperture whereby said film is illuminated and an image formed in the optical assembly, a single sprocket engaging both said upper and loweR runs and adapted to be driven by the driving means and means within said cartridge for forming a roll of film, said means for forming a roll of film being formed so that the film can be payed off from or taken up on either the inside or the outside of said roll, said means forming a roll of said film comprising a generally circular film storage guide exterior to said roll of film, a generally circular spool interior to said roll of film, a first guide member forming with said circular film storage guide an elongated slot extending generally between said sprocket and the outside of said roll of film for guiding said upper run of film onto or off of the outside of said roll of film, a second guide member forming with said first guide member a second elongated slot extending generally between said sprocket and the inside of said roll of film adjacent said circular spool for guiding said lower run of film onto or off of the inside of said roll of film.

Claim 23

A cartridge for retaining a continuous loop of perforated film for display in apparatus of the type having a housing for receiving the cartridge, driving means for the cartridge and an optical assembly, said cartridge comprising means forming a framework having an index plate, said index plate having an aperture substantially in alignment with the optical assembly when said cartridge is received in the housing, guide means for forming the film into upper and lower runs, additional guide means for guiding the film along said index plate past said aperture between the upper and lower runs, means for supplying light to the side of the film opposite the aperture whereby the film is illuminated and an image formed in the optical assembly, a single sprocket engaging both the upper and lower runs and adapted to be rotated in either of two different directions by the driving means and means within the cartridge for forming a roll of the film whereby the film can be payed off from or taken up on either the inside or the outside of the roll, said means for forming a roll of film comprising a generally circular film storage guide exterior to the roll of film, a generally circular spool interior to the roll of film, a first guide member forming with said circular film storage guide an elongated slot extending generally between said sprocket and the outside of the roll of film for guiding the upper run of film onto or off of the outside of said roll of film and a second guide member forming with said first guide member a second elongated slot extending generally between said sprocket and the inside of the roll of film adjacent said circular spool for guiding the lower run of film onto or off of the inside of the roll of film.

Claim 24

A cartridge for retaining a continuous loop of perforated film for display in apparatus of the type having a housing for receiving the cartridge, driving means for the cartridge and an optical assembly, said cartridge comprising means forming a framework having an index plate, said index plate having an aperture substantially in alignment with the optical assembly when said cartridge is received in the housing, guide means for forming the film into upper and lower runs, additional guide means for guiding the film along said index plate past said aperture between the upper and lower runs, means for supplying light to the side of the film opposite the aperture whereby the film is illuminated and an image formed in the optical assembly, a single sprocket engaging both the upper and lower runs and adapted to be rotated in either of two different directions by the driving means and means within the cartridge for forming a roll of the film whereby the film can be payed off from or taken up on either the inside or the outside of the roll, said means for forming a roll of film comprising a generally circular film storage guide exterior to the roll of film, a generally circular spool interior to the roll of film, a first guide member forming with said circular film storage guide an elongated slot extending generally between said sprocket and the outside of the roll of film for guiding the upper run of film onto or off of the outside of said roll of film and a second guide member forming with said first guide member a second elongated slot extending generally between said sprocket and the inside of the roll of film adjacent said circular spool for guiding the lower run of film onto or off of the inside of the roll of film.