Film splicer

Claim 2

In a film-splicing apparatus as set forth in claim 2, and power means for operating said film-trimming and emulsion-removing device which is actuated in response to movement of said carriage.

Claim 3

In a film-splicing apparatus as set forth in claim 2, and said film-clamping members being in the form of a pair of film-engaging plates hingedly connected along a side edge thereof.

Claim 4

In a film-splicing apparatus as set forth in claim 2, and said film-clamping members being in the form of elongate platelike film-engaging strips mounted in face-to-face relation upon confronting faces of carrier plates which are hinged to each other along a side edge.

Claim 5

In a film-splicing apparatus as set forth in claim 5, and said elongate platelike film-engaging strips having cooperating means thereon for confining the film on a predetermined position when the film is clamped between the same so as to hold the film against movement.

Claim 6

In a film-splicing apparatus as set forth in claim 5 and the platelike film-engaging strip which is on the bottommost carrier plate having the end thereof extending an appreciable distance beyond the end of the topmost platelike film-engaging strip so as to support the film as it is moved beneath said film-trimming and emulsion removing device.

Claim 7

In a film-splicing apparatus as set forth in claim 5, and one of said carrier plates being in fixed relation on said carriage for reciprocation with said carriage and the other one of said carrier plates being hingedly connected to said first carrier plate.

Claim 8

In a film-splicing apparatus as set forth in claim 5, and said film-trimming and emulsion-removing device comprising a trimming blade and an emulsion-removing wheel, a rotatably mounted shaft supporting said blade and wheel, a power drive for said supporting shaft, and means for adjusting the position of said supporting shaft relative to the path of travel of said carriage so as to control the amount of material removed from the film section by the emulsion-removing wheel.

Claim 9

In a film-splicing apparatus as set forth in claim 2, and means for driving said film-trimming and emulsion-removing device which is operative in response to the reciprocation of said carriage.

Claim 10

In a splicing apparatus for film, or like tape, a supporting base, a pair of aligned film-clamping assemblies each having a pair of clamping plates hingedly connected along a side edge and adapted to hold a section of film between the same when closed on each other, a carriage supporting one of said film clamping assemblies, means mounting said carriage for reciprocation in a predetermined lineal path extending laterally of an end section of film held between the clamping plates on said carriage, a combination film-trimming and emulsion-removing device mounted in the path of said film end section which is operative to trim the end of the film and remove emulsion from the trimmed end when the end of the film is moved past the same by reciprocation of said carriage, and means for releasably holding the clamping plates in closed film clamping position comprising a magnet on the one plate and a cooperating member which is attracted thereby on the other plate.

Claim 11

In a splicing apparatus as set forth in claim 11, and one of said film-clamping assemblies being hingedly mounted to swing as a unit in said supporting base and having means for releasably holding the entire assembly in a generally horizontal position on the base when the base is disposed on a generally horizontal surface, and said releasable holding means comprising a magnet fixed on the base and a cooperating member which is attracted thereby on the assembly.

Claim 12

In a splicing apparatus for film or like tape, a supporting base, a pair of longitudinally aligned film-clamping assemblies each having a pair of film engaging plates mounted for hinging movement along corresponding side edges and the plates of each pair thereof being adapted, when closed on each other, to clamp a section of film between the same with the ends extending at the inner ends of the film-engaging plates and in axial alignment longitudinally thereof, one pair of said film-engaging plates being mounted to swing as a unit upwardly out of alignment with the other pair of said film-engaging plates, the inner end of each film-engaging plate of each pair thereof being offset relative to the corresponding end of the associated film-engaging plate, the inner end of each of said film-engaging plates mating with the corresponding end of the corresponding plate in the other pair thereof and the end edges cooperating when said one pair of said film-engaging plates is swung down into alignment with the other pair thereof to shear off the ends of the film section, leaving a portion of the sheared ends overlapping.

Claim 13

A film-splicing apparatus comprising a base member, a pair of film-clamping assemblies which are normally disposed in alignment so as to rEceive the end portions of film which is to be spliced with the free ends thereof overlapped, each of said clamping assembly comprising a bottom clamping plate and a top clamping plate, said top clamping plate being mounted to hinge on corresponding side edges between open and closed positions, a carriage for one of said clamping assemblies, means mounting said carriage for linear movement laterally of the associated clamping assembly, said associated clamping assembly being mounted to hinge as a unit about the hinge axis of the top clamping plate thereof to an out-of-the-way position, a film trimming and emulsion scraping device mounted in the path of the free end of a film portion which is clamped in the laterally movable film-clamping assembly, the film-engaging plates of said movable clamping assembly having their inner ends offset so that the end portion of one clamping plate provides a surface for supporting the film clamped therein as it is moved past said film-trimming and emulsion-scraping device whereby upon predetermined lateral movement of said carriage the end of the film in the clamping assembly will be trimmed and simultaneously scraped so as to remove the emulsion in the area adjacent the trimmed end and said associated film clamping assembly having film-engaging plates with their inner ends offset and provided with film-cutting edges so as to cooperate with the ends of the corresponding plates on the movable clamping assembly in a final trimming of the free ends of the film when said associated film-clamping assembly is hinged from an out-of-the-way position to a position in alignment with the movable film-clamping assembly whereby the trimmed ends of the film overlap for forming a splice in the area which has been scraped to remove the emulsion.