Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
220 words
A photographic film assemblage comprising: a cassette having means defining a lighttight passageway through which a strip of photographic film is adapted to be advanced to the exterior of said cassette; a roll of photographic film having a leading and trailing end; and a spool rotatably supported within said cassette with said roll of film coiled around said spool and with said trailing end being attached to said spool, said spool having a longitudinal axis and being comprised of first and second members connected to each other for movement relative to each other along said longitudinal axis, each of said first and second members includes a radially extending flange having friction producing means on a face thereof which is adapted to lie in a plane closely adjacent to a side of said roll of film, each of said first and second members further includes means extending to the exterior of said cassette where they may be manually grasped and moved toward each other thereby moving said friction producing means on said flanges into firm engagement with the opposite sides of said roll of film whereby relative rotation between said spool and said cassette about said longitudinal axis in a predetermined direction is then effective to move said leading end of said roll of film into and through said lighttight passageway.
Claim 2
Dependent Claim
220 words
A photographic film assemblage comprising: a cassette having means defining a lighttight passageway through which a strip of photographic film is adapted to be advanced to the exterior of said cassette; a roll of photographic film having a leading and trailing end; and a spool rotatably supported within said cassette with said roll of film coiled around said spool and with said trailing end being attached to said spool, said spool having a longitudinal axis and being comprised of first and second members connected to each other for movement relative to each other along said longitudinal axis, each of said first and second members includes a radially extending flange having friction producing means on a face thereof which is adapted to lie in a plane closely adjacent to a side of said roll of film, each of said first and second members further includes means extending to the exterior of said cassette where they may be manually grasped and moved toward each other thereby moving said friction producing means on said flanges into firm engagement with the opposite sides of said roll of film whereby relative rotation between said spool and said cassette about said longitudinal axis in a predetermined direction is then effective to move said leading end of said roll of film into and through said lighttight passageway.
Claim 3
Dependent Claim
20 words
A photographic film assemblage as defined in claim 1 wherein said friction producing means includes a layer of resilient material.
Claim 4
Dependent Claim
16 words
A photographic film assemblage as defined in claim 2 wherein said friction producing material includes rubber.
Claim 5
Dependent Claim
21 words
A photographic film assemblage as defined in claim 1 wherein said friction producing means comprises a plurality of radially extending ribs.
Claim 6
Dependent Claim
23 words
A photographic film assemblage as defined in claim 1 further including means for guiding said leading end of said film into said passageway.
Claim 7
Dependent Claim
27 words
A photographic film assemblage as defined in claim 5 wherein said guiding means has a coefficient of friction substantially less than that of said friction producing means.
Claim 8
Dependent Claim
29 words
A photographic film assemblage as defined in claim 6 wherein said guiding means substantially encompasses said roll of film and includes an opening located in alignment with said passageway.
Claim 9
Dependent Claim
32 words
A photographic film assemblage as defined in claim 7 wherein said guiding means restricts the maximum diameter of said roll of film to a value less than the diameter of said flanges.