https://nginx-develop-nfsa2.govcms7.amazee.io/sites/default/files/2024-04/Singoring%201000x745.jpg
Sprocket
A driving gear wheel used to move the film through machines. It engages the film perforations to transport the film. Shrunken film requires sprockets with a different pitch. Used on all film handling equipment.
https://nginx-develop-nfsa2.govcms7.amazee.io/sites/default/files/uploads/2010/08/25/sprocket.jpg
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.