Film cassette, rack and relief trolley for the film cassette, and method of handling the film cassette

Cassette according to any one of the preceding patent claims, characterized in that the second portion (16) of the cassette has a concave contact edge (27) which is adapted to be applied to a peripheral edge of the circular table (4, 5) in order to form a support against this edge.

Cassette according to any one of the preceding patent claims, characterized in that cutout openings (35) in the middle of the cassette constitute handles for lifting and carrying the cassette (14) in a vertical position, and in that cutout openings (33, 34) in the periphery of the cassette constitute handles for carrying the cassette (14) in a horizontal position.

Cassette according to any one of the preceding patent claims, characterized in that a close-fitting cover is arranged as protection for the film roll (7) during transport.

Rack (40) intended for a cassette (14) for storing cinema film rolls (7), where the cassette (14) comprises a first portion (15) and a second portion (16), which portions (15, 16) are essentially plane-parallel and separated by a spacing which exceeds the thickness of a cinema film roll (7) and connected by a connecting part (17), which cassette (14) also has an opening (18), characterized in that the rack (40) is designed in such a way that the cassette (14) is held fixed during transport and storage and that pins (37, 38) arranged at the centre ring (36) of the film roll (7) do not catch on the said rack (40) when the cassette (14) is handled.

Relief trolley (46) intended for a cassette (14) for storing cinema film rolls (7), where the cassette (14) comprises a first portion (15) and a second portion (16), which portions (15, 16) are essentially plane-parallel and separated by a spacing which exceeds the thickness of a cinema film roll (7) and connected by a connecting part (17), which cassette (14) also has an opening (18), characterized in that the relief trolley (46) rests on wheels (47, 48, 49, 50), from which a stand (52) leads up to a raisable and lowerable cassette-holder (54) mounted in an articulated manner, which consists of a plane portion (58) and a pocket (59).

Method of transferring a cinema film roll (7) from an essentially horizontal circular table (4, 5) to a storage cassette (14), characterized in that it comprises the steps:

• lifting up and positioning the cassette (14) so that bearing supports (25, 26) of the cassette (14) come to rest on the circular table (4);
• fitting a contact edge (27) of the cassette (14) against the circular table (4, 5), which contact edge (27) is adapted on the whole to follow the peripheral shape of the circular table (4, 5);
• retaining the cassette (14) in this position with one hand at the same time as the film roll (7) is guided into the cassette (14) from the circular table (4, 5) by a portion of the film roll (7) being taken hold of with the other hand, and lifting the cassette (14) down for further storage.

Method of transferring a cinema film roll (7) from a storage cassette (14) to an essentially horizontal circular table (4, 5), characterized in that it comprises the steps:

• lifting up and positioning the cassette (14) so that bearing supports (25, 26) of the cassette (14) come to rest on the circular table (4, 5);
• fitting a contact edge (27) of the cassette (14) against the circular table (4, 5), which contact edge (27) is adapted on the whole to follow the peripheral shape of the circular table (4, 5);
• retaining the cassette (14) in this position with one hand at the same time as the film roll (7) is guided out of the cassette (14) onto the circular table (4, 5) by a portion of the film roll (7) being taken hold of with the other hand, and lifting the cassette (14) down for further storage.