Apparatus for mounting contact screen in a process camera

Claim 1

An apparatus for mounting a contact screen in a process camera comprising: 1. a film backing having a first edge and a second edge; 2. a screen retainer assembly comprising a screen retainer frame, a first screen anchoring element rigidly attached to one edge of the screen retainer frame, /and a second screen anchoring element resiliently attached to a second edge of the screen retainer frame, said film backing and screen retainer assembly being relatively movable in a direction perpendicular to the optical axis of the camera to and from a position where the film backing is spaced from the screen retainer assembly and a position wherein the film backing and the screen retainer assembly are juxtaposed in contact along one of each of their edges; 3. movable spacer means for separating the film backing from the screen retainer assembly at the other of each of their edges; 4. roller guide means; and 5. a roller, movably attached to the roller guide means, designed and adapted to press a screen in the screen retainer assembly against the film backing initially at the edge in contact with the film backing and to move along the face of the screen so as to move the screen gradually into contact with the film backing along its entire surface, when the screen retainer assembly and film backing are moved into the juxtaposed position.

Claim 2

An apparatus for mounting a contact screen in a process camera comprising: 1. a film backing having a first edge and a second edge; 2. a screen retainer assembly comprising a screen retainer frame, a first screen anchoring element rigidly attached to one edge of the screen retainer frame, /and a second screen anchoring element resiliently attached to a second edge of the screen retainer frame, said film backing and screen retainer assembly being relatively movable in a direction perpendicular to the optical axis of the camera to and from a position where the film backing is spaced from the screen retainer assembly and a position wherein the film backing and the screen retainer assembly are juxtaposed in contact along one of each of their edges; 3. movable spacer means for separating the film backing from the screen retainer assembly at the other of each of their edges; 4. roller guide means; and 5. a roller, movably attached to the roller guide means, designed and adapted to press a screen in the screen retainer assembly against the film backing initially at the edge in contact with the film backing and to move along the face of the screen so as to move the screen gradually into contact with the film backing along its entire surface, when the screen retainer assembly and film backing are moved into the juxtaposed position.

Claim 17

The apparatus for mounting a contact screen in a process camera comprising a film backing; a screen retainer assembly comprising a screen retaining frame, a first screen anchoring element rigidly attached to the top edge of the screen retaining frame, a second screen anchoring element resiliently attached to the lower edge of the screen retaining screen; means for moving the screen retainer assembly to and from a position above and horizontally forward of the film backing face and a position in juxtaposition with the film backing face; holder means pivotally connected to the screen retainer assembly; a stop-engaging portion projecting rearwardly from the holder means towards the film backing rigidly connected to the holder means; stop means in immovable relationship to the film backing; movable spacer means resiliently attached to the film backing and projecting forwardly from the film backing towards the screen retainer assembly; the combined apparatus being designed and adapted such that when the screen retainer assembly is lowered into its juxtaposed position with the film backing, the stop means being places so as to engage the stop-engaging means after the lower edge of the screen retainer assembly engages the movable spacer means such that the upper edge of the screen retainer assembly is pivoted inwardly to contact the upper edge of the film backing and the lower edge of the screen retainer assembly is pivoted forwardly away from the lower edge of the film backing; roller guide means attached to the film backing; a roller assembly designed and adapted to move along the roller guide means when the screen retainer assembly is in its juxtaposed position with the film backing so as to pressingly engage the screen and press the screen against the film backing and to move downwardly along the screen so as to gradually press the entire face of the screen against the film backing, the roller means being positioned along a substantially horizontal axis.

Claim 18

The apparatus for mounting a contact screen in a process camera comprising a film backing; a screen retainer assembly comprising a screen retaining frame, a first screen anchoring element rigidly attached to the top edge of the screen retaining frame, a second screen anchoring element resiliently attached to the lower edge of the screen retaining screen; means for moving the screen retainer assembly to and from a position above and horizontally forward of the film backing face and a position in juxtaposition with the film backing face; holder means pivotally connected to the screen retainer assembly; a stop-engaging portion projecting rearwardly from the holder means towards the film backing rigidly connected to the holder means; stop means in immovable relationship to the film backing; movable spacer means resiliently attached to the film backing and projecting forwardly from the film backing towards the screen retainer assembly; the combined apparatus being designed and adapted such that when the screen retainer assembly is lowered into its juxtaposed position with the film backing, the stop means being places so as to engage the stop-engaging means after the lower edge of the screen retainer assembly engages the movable spacer means such that the upper edge of the screen retainer assembly is pivoted inwardly to contact the upper edge of the film backing and the lower edge of the screen retainer assembly is pivoted forwardly away from the lower edge of the film backing; roller guide means attached to the film backing; a roller assembly designed and adapted to move along the roller guide means when the screen retainer assembly is in its juxtaposed position with the film backing so as to pressingly engage the screen and press the screen against the film backing and to move downwardly along the screen so as to gradually press the entire face of the screen against the film backing, the roller means being positioned along a substantially horizontal axis.