https://www.nfsa.gov.au/sites/default/files/2025-02/Colour%20TV%20Mega%20Menu%203%20TVs_1000x745%20px.jpg
Split spool
A spool that has one removable flange, enabling a roll of film to be placed on it or removed from it without rewinding. 1
https://www.nfsa.gov.au/sites/default/files/uploads/2010/08/25/split-spool.gif
The split spool normally takes a plastic core that is removed after winding.
References
1 British Standard Glossary of Terms used in the Motion Picture Industry.
The National Film and Sound Archive of Australia acknowledges Australia’s Aboriginal and Torres Strait Islander peoples as the Traditional Custodians of the land on which we work and live and gives respect to their Elders both past and present.