Photographic modifier

Claim 1

A device of the type described, comprising a. a carrier supporting member having a flat surface; b. a first carrier slidably mounted on said surface and having a photo-sensitive material mounted thereon; c. a second carrier superimposed on said first carrier and having a negative material mounted thereon; d. a source of light directed against only a portion of said negative material; e. a common means for providing a predetermined path for movement of both carriers with respect to said light source; f. means for moving both carriers along said path at preselected speeds so that the carriers will move relative to the light source and cause the latter to traverse across the negative material and expose those portions of the photo-sensitive material permitted by the negative; g. the flat surface of said carrier supporting member being inclined from the vertical so that gravity will cause said first carrier to tend to move in one direction over said surface and will cause said second carrier to tend to move over said first carrier and in the same direction as said first carrier; h. said carrier moving means will move botH carriers in the opposite direction at their preselected speeds so as to cause a relative movement between the two carriers while being moved by said carrier moving means; i. the means for moving both carriers along said path at preselected speeds includes a spindle movable upwardly along an upwardly inclined slot provided in the upwardly inclined flat surface, said spindle contacting with the lower edge of said first carrier for moving said carrier upwardly along said flat surface; j. said second carrier having a transversely extending arm disposed adjacent to the lower edge of said second carrier, one end of said arm being pivotally secured to said second carrier; and k. a ratio bar having one end pivotally secured to the free end of said arm, said ratio bar having means for adjustably securing it to said second carrier at a desired position for holding said arm at a desired angle with respect to the lower edge of said second carrier, said spindle contacting said arm; l. the means for moving both carriers also including means for advancing said spindle along said upwardly inclined slot for moving both the first and second carriers along said path at different preselected speeds with respect to each other for causing the exposed portion of the data on the photo-sensitive material to be proportionally altered from the similar data on said negative.

Claim 2

A device of the type described, comprising a. a carrier supporting member having a flat surface; b. a first carrier slidably mounted on said surface and having a photo-sensitive material mounted thereon; c. a second carrier superimposed on said first carrier and having a negative material mounted thereon; d. a source of light directed against only a portion of said negative material; e. a common means for providing a predetermined path for movement of both carriers with respect to said light source; f. means for moving both carriers along said path at preselected speeds so that the carriers will move relative to the light source and cause the latter to traverse across the negative material and expose those portions of the photo-sensitive material permitted by the negative; g. the flat surface of said carrier supporting member being inclined from the vertical so that gravity will cause said first carrier to tend to move in one direction over said surface and will cause said second carrier to tend to move over said first carrier and in the same direction as said first carrier; h. said carrier moving means will move botH carriers in the opposite direction at their preselected speeds so as to cause a relative movement between the two carriers while being moved by said carrier moving means; i. the means for moving both carriers along said path at preselected speeds includes a spindle movable upwardly along an upwardly inclined slot provided in the upwardly inclined flat surface, said spindle contacting with the lower edge of said first carrier for moving said carrier upwardly along said flat surface; j. said second carrier having a transversely extending arm disposed adjacent to the lower edge of said second carrier, one end of said arm being pivotally secured to said second carrier; and k. a ratio bar having one end pivotally secured to the free end of said arm, said ratio bar having means for adjustably securing it to said second carrier at a desired position for holding said arm at a desired angle with respect to the lower edge of said second carrier, said spindle contacting said arm; l. the means for moving both carriers also including means for advancing said spindle along said upwardly inclined slot for moving both the first and second carriers along said path at different preselected speeds with respect to each other for causing the exposed portion of the data on the photo-sensitive material to be proportionally altered from the similar data on said negative.

Claim 6

A device of the type described comprising: a. an upwardly inclined member having a flat surface and longitudinally extending and spaced apart parallel guide rails, said flat surface having an upwardly inclined slot therein; b. an auxiliary carrier frame slidably mounted between said spaced apart and longitudinally extending guide rails and having transversely extending and spaced apart guide rails that extend substantially at right angles to said longitudinal rails; c. a photo-sensitive material removably mounted on said auxiliary carrier frame; d. a spring biased carrier for removably supporting a negative, said spring biased carrier being slidably mounted between said transversely extending guide rails so as to superimpose the negative above the photo-sensitive material; e. a stationary cam with means for securing it in association with said spring biased carrier, said carrier having a cam follower yieldingly held in contact with the cam edge of said stationary cam; f. a source of light directed against only a portion of said negative; and g. a spindle movable along said slot and contacting with the lower eDge of said auxiliary carrier frame for moving said auxiliary carrier frame upwardly along the flat surface and carrying with it said spring biased carrier, the latter having its cam follower yieldingly held in contact with the cam edge of said stationary cam so that said spring biased carrier will move in a lateral direction while said auxiliary carrier frame is moving upwardly and move said negative laterally with respect to the photo-sensitive material that is mounted on the auxiliary carrier frame; h. whereby the negative will be moved laterally in a predetermined direction with respect to the photo-sensitive material as both are moved upwardly along the flat surface and relative to the light source, thereby causing the light source to move across the negative and expose those portions of the photo-sensitive material permitted by the negative.

Claim 7

A device of the type described comprising: a. an upwardly inclined member having a flat surface and longitudinally extending and spaced apart parallel guide rails, said flat surface having an upwardly inclined slot therein; b. an auxiliary carrier frame slidably mounted between said spaced apart and longitudinally extending guide rails and having transversely extending and spaced apart guide rails that extend substantially at right angles to said longitudinal rails; c. a photo-sensitive material removably mounted on said auxiliary carrier frame; d. a spring biased carrier for removably supporting a negative, said spring biased carrier being slidably mounted between said transversely extending guide rails so as to superimpose the negative above the photo-sensitive material; e. a stationary cam with means for securing it in association with said spring biased carrier, said carrier having a cam follower yieldingly held in contact with the cam edge of said stationary cam; f. a source of light directed against only a portion of said negative; and g. a spindle movable along said slot and contacting with the lower eDge of said auxiliary carrier frame for moving said auxiliary carrier frame upwardly along the flat surface and carrying with it said spring biased carrier, the latter having its cam follower yieldingly held in contact with the cam edge of said stationary cam so that said spring biased carrier will move in a lateral direction while said auxiliary carrier frame is moving upwardly and move said negative laterally with respect to the photo-sensitive material that is mounted on the auxiliary carrier frame; h. whereby the negative will be moved laterally in a predetermined direction with respect to the photo-sensitive material as both are moved upwardly along the flat surface and relative to the light source, thereby causing the light source to move across the negative and expose those portions of the photo-sensitive material permitted by the negative.