Punch-out film mount

Claim 2

A film mount comprising: a. two laminae of sheet material hinged foldably to each other and peripherally registrable with each other in the folded position, b. the laminae when folded being adaptable to mount a film between them, c. the laminae having central, substantially registering apertures framing the film, d. the laminae having opposite closed patterns of substantially aligned, aperture-surrounding, interrupted perforations separated by tearable connections and defining outer and inner lamina sections of predetermined outside dimensions and e. securing means for securing the laminae face to face, f. the laminae when secured together providing a first mount of first external dimensions having a punch-out central section which when separated along the said pattern of perforations and tearable connections provides a second mount of smaller outside dimensions.

Claim 3

The film mount of claim 1 wherein the two laminae of sheet material foldably hinged to each other comprise an integral plastic sheet and wherein the securing means comprises rivetable posts on one of the laminae entering registering openings in the other of the laminae.

Claim 4

The film mount of claim 1 wherein the two laminae of sheet material foldably hinged to each other comprise an integral plastic sheet, wherein the securing means comprise rivetable posts on one of the laminae entering registering openings on the other of the laminae, and wherein there are rivetable posts on the inner lamina section arranged along the margin of the aperture therein for guiding and retaining a film mounted therein.

Claim 5

The film mount of claim 1 including post-and-socket film securing means positioned on the laminae for engaging the film in the folded condition of the mount.

Claim 6

The film mount of claim 4 wherein the film contained in the film mount has on the margin thereof an identifying symbol and wherein the socket extends completely through the framing half in which it is contained and constitutes a view window for viewing the symbol.

Claim 7

The film mount of claim 1 wherein the closed patterns of interrupted perforations comprise slits defining a rectangle and wherein the slits are separated by tearable connections at the corners of the rectangle.

Claim 8

The film mount of claim 6 wherein at the corners the ends of the slits are directed inwardly a distance predetermined to prevent the formation of outwardly projecting flash upon tearing the connections.

Claim 9

The film mount of claim 1 wherein the opposite closed patterns of interrupted perforations on the laminae are out of registry with each other by a distance predetermiNed to prevent light transmission through the slits during projection of the mounted film.

Claim 10

A film mount comprising: a. two laminae of plastic sheet material integrally hinged foldably to each other and peripherably registerable with each other in their folded condition, b. the laminae when folded being adapted to mount a film between them, c. the laminae having central substantially registering apertures framing the film, d. the laminae having opposite closed rectangular patterns of perforations each comprising slits separated at the corners by tearable connections, e. the ends of the slits at the corners being inwardly directed by an amount predetermined to prevent the formation of outwardly projecting flash upon tearing the connections, of the slits defining outer and inner lamina sections of predetermined external dimensions, g. securing means comprising a plurality of rivetable posts on one lamina and a plurality of openings registering with the posts for receiving the same on the other lamina, h. the posts and registering openings being positioned selectively on the outer and inner lamina sections, i. the posts on the inner lamina section being arranged along the margin of the aperture therein for positioning and retaining the film, and j. locking post and registering opening means on the inner lamina sections positioned for locking engagement with the film in the folded position of the laminae.

Claim 11

A film mount comprising: a. two laminae of plastic sheet material integrally hinged foldably to each other and peripherably registerable with each other in their folded condition, b. the laminae when folded being adapted to mount a film between them, c. the laminae having central substantially registering apertures framing the film, d. the laminae having opposite closed rectangular patterns of perforations each comprising slits separated at the corners by tearable connections, e. the ends of the slits at the corners being inwardly directed by an amount predetermined to prevent the formation of outwardly projecting flash upon tearing the connections, of the slits defining outer and inner lamina sections of predetermined external dimensions, g. securing means comprising a plurality of rivetable posts on one lamina and a plurality of openings registering with the posts for receiving the same on the other lamina, h. the posts and registering openings being positioned selectively on the outer and inner lamina sections, i. the posts on the inner lamina section being arranged along the margin of the aperture therein for positioning and retaining the film, and j. locking post and registering opening means on the inner lamina sections positioned for locking engagement with the film in the folded position of the laminae.

Claim 12

A film mount comprising: a. two laminae of sheet material peripherally registrable with each other and adapted to mount a film between them, b. the laminae having central, substantially registering apertures framing the film, c. the laminae having opposite closed patterns of substantially aligned, aperture-surrounding, interrupted perforations separated by tearable connections and defining outer and inner lamina sections of predetermined outside dimensions and d. securing means for securing the laminae face to face, e. the laminae when secured together providing a first mount of first external dimensions having a punch-out central section which when separated along the said pattern of perforations and tearable connections provides a second mount of smaller outside dimensions.

Claim 13

A film mount comprising: a. two laminae of sheet material peripherally registrable with each other and adapted to mount a film between them, b. the laminae having central, substantially registering apertures framing the film, c. the laminae having opposite closed patterns of substantially aligned, aperture-surrounding, interrupted perforations separated by tearable connections and defining outer and inner lamina sections of predetermined outside dimensions and d. securing means for securing the laminae face to face, e. the laminae when secured together providing a first mount of first external dimensions having a punch-out central section which when separated along the said pattern of perforations and tearable connections provides a second mount of smaller outside dimensions.