Cassette, for sheet photographic materials

Claim 2

A cassette, for sheet photographic materials, such as negative stock, emulsified paper, and the like, comprising: a housing having an elongate central axis; said housing having means defining a substantially cylindrical chamber therewithin; said means comprising a peripheral wall circumscribing said axis on a given radius and extending through not less than two hundred and seventy degrees of arc; said housing further having an opening formed therein along a plane which is substantially tangential to said peripheral wall; and wherein said opening subsists at a distance from said axis which is greater than said given radius; said housing further has means defining a walled trough extending parallel with said axis; said trough has a pair of axially-extending surfaces which are in mutual alignment and in near contacting engagement; said opening subsists between said surfaces; at least one of said surfaces is disposed in a given plane and has a second trough surface immediately adjoining disposed at an angle from said given plane; and said angle of said second trough surface is approximately twenty degrees of arc from said given plane.

Claim 3

A cassette, according to claim 1, wherein: said housing comprises a pair shells hingedly joined, along a line parallel with said axis, intermediate the periphery of said peripheral wall.

Claim 4

A cassette, according to claim 2, wherein: said shells having mutually mating edges; and said edges have means defining a light-sealing engagement therebetween.

Claim 5

A cassette, for sheet photographic materials, such as negative stock, emulsified paper, and the like, comprising: a housing having an elongate central axis; said housing having means defining a substantially cylindrical chamber therewithin; said means comprising a peripheral wall circumscribing said axis on a given radius and extending through not less than two hundred and seventy degrees of arc; said housing further having an opening formed therein along a plane which is substantially tangential to said peripheral wall; and wherein said opening subsists at a distance from said axis which is greater than said given radius; said housing further has means defining a walled trough extending parallel with said axis; said trough has a pair of axially-extending surfaces which are in mutual alignment and in near contacting engagement; said opening subsists between said surfaces; said housing comprises a pair of shells hingedly joined, along a line parallel with said axis, intermediate the periphery of said peripheral wall; said shells have mutually mating edges; said edges have means defining a light-sealing engagement therebetween; one of said shells has a mating edge, as aforesaid, in which is formed a channel; and the other of said shells has a mating edge, as aforesaid, having a prominent rib for nestingly engaging said channel.

Claim 6

A cassette, for sheet photographic materials, such as negative stock, emulsified paper, and the like, comprising: a housing having an elongate central axis; said housing having means defining a substantially cylindrical chamber therewithin; said means comprising a peripheral wall circumscribing said axis on a given radius and extending through not less than two hundred and seventy degrees of arc; said housing further having an opening formed therein along a plane which is substantially tangential to said peripheral wall; and wherein said opening subsists at a distance from said axis which is greater than said given radius; said housing further has means defining a walled trough extending parallel with said axis; said trough has a pair of axially-extending surfaces which are in mutual alignment and in near contacting engagement; said opening subsists between said surfaces; said housing comprises a pair of shells hingedly joined, along a line parallel with said axis, intermediate the periphery of said peripheral wall; said shells have mutually mating edges; said edges have means defining a light-sealing engagement therebetween; one of said shells has a mating edge, as aforesaid, in which is formed a channel; and the other of said shells has a mating edge, as aforesaid, having a prominent rib for nestingly engaging said channel.

Claim 7

A cassette, according to claim 4, wherein: said distance is approximately fifty percent greater than said given radius.

Claim 8

A cassette, according to claim 4, wherein: said housing further has means for journalling a roll of sheet photographic material therewithin for paying-out of such material, from said chamber, along said plane, and along planes lying at acute angles, not exceeding approximately twenty degrees of arc, from said plane.

Claim 9

A cassette, according to claim 6, wherein: said housing further has walls at opposite axial ends thereof lying substantially normal to said peripheral wall; and said end walls have circular recesses formed therein which define said journalling means.

Claim 10

A cassette, according to 4, wherein: said trough is defined of two mating parts; one of said mating parts is an immobile, integral portion of one of said shells; and the other of said mating parts is hingedly joined, along a line parallel with said axis, to the other of said shells.

Claim 11

A cassette, according to 4, wherein: said trough is defined of two mating parts; one of said mating parts is an immobile, integral portion of one of said shells; and the other of said mating parts is hingedly joined, along a line parallel with said axis, to the other of said shells.

Claim 12

A cassette, according to claim 8, wherein: said shells, and said other mating part, are hingedly joined along lines parallel with said axis, as aforesaid, which are one hundred and eighty degrees of arc therebetween.

Claim 13

A cassette, according to claim 8, wherein: said mating parts have means for locking the two thereof together.

Claim 14

A cassette, according to claim 10, wherein: said locking means comprises latch means carried by at least one of said mating parts, and latch-engaging means on at least the other of said mating parts.

Claim 15

A cassette, according to claim 4, wherein: said shells have means for locking the pair thereof together.

Claim 16

A cassette, according to claim 12, wherein: said locking means comprises latch means carried by at least one of said shells, and latch-receiving means in at least the other of said shells.

Claim 17

A cassette, for sheet photographic materials, such as negative stock, emulsified paper, and the like, comprising: a housing having an elongate central axis; said housing having means defining a substantially cylindrical chamber therewithin; said means comprising a peripheral wall circumscribing said axis on a given radius and extending through not less than two hundred and seventy degrees of arc; said housing further having an opening formed therein along a plane which is substantially tangential to said peripheral wall; and wherein said opening subsists at a distance from said axis which is greater than said given radius; said housing further has means defining a walled trough extending parallel with said axis; said trough has a pair of axially-extending surfaces which are in mutual alignment and in near contacting engagement; said opening subsists between said surfaces; said housing comprises a pair of shells hingedly joined, along a line parallel with said axis, intermediate the periphery of said peripheral wall; said shells have means for locking the pair thereof together; said locking means comprises latch means carried by at least one of said shells, and latch-receiving means in at least the other of said shells; said latch means comprises a plurality of latch fingers extending from said one shell; said fingers having hook-type terminations; and said latch-receiving means comprises linear recesses formed in a surface of said other shell.

Claim 18

A cassette, for sheet photographic materials, such as negative stock, emulsified paper, and the like, comprising: a housing having an elongate central axis; said housing having means defining a substantially cylindrical chamber therewithin; said means comprising a peripheral wall circumscribing said axis on a given radius and extending through not less than two hundred and seventy degrees of arc; said housing further having an opening formed therein along a plane which is substantially tangential to said peripheral wall; and wherein said opening subsists at a distance from said axis which is greater than said given radius; said housing further has means defining a walled trough extending parallel with said axis; said trough has a pair of axially-extending surfaces which are in mutual alignment and in near contacting engagement; said opening subsists between said surfaces; said housing comprises a pair of shells hingedly joined, along a line parallel with said axis, intermediate the periphery of said peripheral wall; said shells have means for locking the pair thereof together; said locking means comprises latch means carried by at least one of said shells, and latch-receiving means in at least the other of said shells; said latch means comprises a plurality of latch fingers extending from said one shell; said fingers having hook-type terminations; and said latch-receiving means comprises linear recesses formed in a surface of said other shell.

Claim 19

A cassette, for sheet photographic materials, such as negative stock, emulsified paper, and the like, comprising: a housing having an elongate central axis; said housing having means defining a substantially cylindrical chamber therewithin; said means comprising a peripheral wall circumscribing said axis on a given radius and extending through not less than two hundred and seventy degrees of arc; said housing further having an opening formed therein along a plane which is substantially tangential to said peripheral wall; and wherein said opening subsists at a distance from said axis which is greater than said given radius; said housing further has means defining a walled trough extending parallel with said axis; said trough has a pair of axially-extending surfaces which are in mutual alignment and in near contacting engagement; said opening subsists between said surfaces; said housing comprises a pair of shells hingedly joined, along a line parallel with said axis, intermediate the periphery of said peripheral wall;

Claim 20

A cassette, for sheet photographic materials, such as negative stock, emulsified paper, and the like, comprising: a housing having an elongate central axis; said housing having means defining a substantially cylindrical chamber therewithin; said means comprising a peripheral wall circumscribing said axis on a given radius and extending through not less than two hundred and seventy degrees of arc; said housing further having an opening formed therein along a plane which is substantially tangential to said peripheral wall; and wherein said opening subsists at a distance from said axis which is greater than said given radius; said housing further has means defining a walled trough extending parallel with said axis; said trough has a pair of axially-extending surfaces which are in mutual alignment and in near contacting engagement; said opening subsists between said surfaces; said housing comprises a pair of shells hingedly joined, along a line parallel with said axis, intermediate the periphery of said peripheral wall;

Claim 21

said trough is defined of two mating parts; one of said mating parts is an immobile, integral portion of one of said shells;

Claim 22

said trough is defined of two mating parts; one of said mating parts is an immobile, integral portion of one of said shells;

Claim 23

the other of said mating parts is hingedly joined, along a line parallel with said axis, to the other of said shells; said mating parts have means for locking the two thereof together; said locking means comprises latch means carried by at least one of said mating parts, and latch-engaging means on at least the other of said mating parts; said latch means comprises a pair of latch edges extending along a length of said one mating part; said latch edges having hook-like terminations; and said latch-engaging means comprises a pair of ribs extending along a length of said other mating part.

Claim 24

the other of said mating parts is hingedly joined, along a line parallel with said axis, to the other of said shells; said mating parts have means for locking the two thereof together; said locking means comprises latch means carried by at least one of said mating parts, and latch-engaging means on at least the other of said mating parts; said latch means comprises a pair of latch edges extending along a length of said one mating part; said latch edges having hook-like terminations; and said latch-engaging means comprises a pair of ribs extending along a length of said other mating part.