# US 4,397,532 A · Film editing device

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 4,397,532 A
- Document ID: US4397532A
- Status: Granted
- Kind: A
- Application number: 06/264,418
- Filed: 1981-05-18
- Granted: 1983-08-09
- Earliest claimed: 1981-05-18
- Inventors: Clarence M. Webb
- Web page: https://patentgrep.com/patent/US4397532A

## CPC

- G03D 15/005: {Order systems, e.g. printsorter}
- G03D: APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS (apparatus specially adapted for photomechanical production of textured or patterned surfaces G03F); ACCESSORIES THEREFOR (photosensitive materials or processes for photographic purposes G03C; electrographic, electrophotographic, or magnetographic methods or apparatus G03G)

## Abstract

A film editing device is disclosed for viewing frames of a roll of negative photographic film and marking selected frames for subsequent development. The film editing device includes a film viewing table having an illuminated film viewing window, a film supply spindle is rotatably mounted to the device to one side of the viewing window adapted to receive a roll of negative film, and a film take-up spindle is rotatably mounted to the viewing device to the opposite side of the viewing window upon which the film strip unwinding from the roll of negative film is rewound. The film supply spindle and film take-up spindle are rotatably driven, selectively, by either an electric motor or manually. A film marking device having a plurality of punches is associated with the viewing table to selectively punch holes in the bottom marginal edge of the selected frame of film.

## Claims

### Claim 1

A film editing device for viewing frames of a roll of photographic film and marking selected frames for printing, said device comprising:
a film viewing table;
a film viewing window mounted in said film viewing table and being dimensioned to display film of at least first and second sizes;
a film supply disposed on one side of said film viewing window for holding and supplying film to said film viewing window for display thereon;
a film take-up disposed on the other side of said film viewing window from said film supply for receiving and storing film after it has been viewed on said film viewing window;
means for moving the film from said film supply across said film viewing window and to said film take-up;
a first alignment light source disposed on said film viewing table for selectively emitting light, said first alignment light source being positioned for use in aligning a marginal edge of a selected frame of film of the first size in a desired position on said film viewing table; and
a second alignment light source disposed on said film viewing table for selectively emitting light, said second alignment light source being positioned for use in aligning a marginal edge of a selected frame of film of the second size in a desired position on said film viewing table.

### Claim 2 (depends on 1)

The device of claim 1, further comprising cleaning means adapted to clean the edited film as the film is being rewound on said film supply spindle from said film take-up spindle, said cleaning means being pivotally mounted on the device for movement between a storage position where it is disposed distally from said film viewing window and an in-use position where it is disposed adjacent to said film viewing window and generally between said film supply and said film take-up.

### Claim 3 (depends on 1)

The device of claim 1 wherein said first and second alignment light sources comprise:
a first light emitting slot formed in said film viewing table for use with film of the first size;
means for selectively illuminating said first light emitting slot;
a second light emitting slot formed in said film viewing table for use with film of the second size; and
means for selectively illuminating said second light emitting slot.

### Claim 4 (depends on 1)

The device of claim 1 further comprising means for selectively covering a portion of said film viewing window when said device is being used to display film of the smaller of the first and second film sizes.

### Claim 5 (depends on 1)

The device of claim 1 further comprising:
an elongated plate;
means for mounting said elongated plate on said film viewing table in a position partially covering said film viewing window; and
said elongated plate being dimensioned to cover, when mounted on said film viewing table, a portion of said film viewing window having a width equal to the difference in width between the first and second film sizes so that said plate may be mounted on said film viewing table to reduce the width of said film viewing window to accommodate the smaller film of the first and second film sizes.

### Claim 6 (depends on 5)

The device of claim 5 wherein said means for mounting comprises a hinge for rotatably mounting said elongated plate for rotation between a position partially covering said film viewing window and a position rotated away from and uncovering said film viewing window.

### Claim 7 (depends on 1)

The device of claim 1 further comprising means for marking a marginal edge of a selected frame of film.

### Claim 8 (depends on 7)

The device of claim 7, wherein said means for marking the selected film frame comprises:
a plurality of spaced apart punches disposed between said film supply spindle and said film take-up spindle; and,
means for activating selected punches for selectively punching holes in the bottom marginal edge of the selected frame.

### Claim 9 (depends on 8)

The device of claim 8, wherein said means for activating selected punches comprises:
a different electrical solenoid operatively associated with each of said punches;
means for selectively electrically energizing each of said electrical solenoids;
electrical circuitry operatively interconnecting said electrical solenoids and said means for energizing said solenoids.

### Claim 10 (depends on 8)

The device of claim 8, further comprising:
a vacuum chamber disposed at the location of said film punches;
vacuum creating means; and,
means operatively interconnecting said vacuum chamber and said vacuum creating means to create a vacuum in said vacuum chamber;
whereby, pieces of film punched out by said punches are conveyed away from said film.

### Claim 11 (depends on 7)

The device of claim 7, wherein said marking means marks the bottom marginal edge of the selected frame.

### Claim 12 (depends on 8)

The device of claim 8, wherein said plurality of spaced apart punches are disposed transversely of the movement of the film.

### Claim 13 (depends on 1)

The device of claim 1 wherein said film supply, film take-up and means for moving comprise:
a film supply spindle having an axis of rotation;
a film take-up spindle having an axis of rotation parallel to the axis of rotation of said film supply spindle;
a supply spindle pulley attached to rotate said supply spindle and having a axis of rotation;
a take-up spindle pulley attached to rotate said take-up spindle and having an axis of rotation parallel to the axis of rotation of said supply spindle pulley;
first and second co-axial pulleys connected for simultaneous rotation in unison;
a supply belt means connected between said first co-axial pulley and said supply spindle pulley for transferring rotational forces therebetween;
a take-up belt means connected between said second co-axial pulley and said take-up spindle pulley for transferring rotational forces therebetween;
an external input pulley attached to rotate said first and second co-axial pulleys, said external input pulley being adapted for being attached to an external drive source to drive said film supply spindle and said film take-up spindle; and
a hand wheel attached to rotate said first and second co-axial pulleys for being rotated by hand to drive said film supply spindle and said film take-up spindle.
