Film cassette for narrow cine film - with supply and take=up spools on same insert axle and held together by friction

摘要

The cassette for the narrow cine film has the take up spool (5) at the end of a hollow shaft (2) inside the housing and with the supply spool (3) as a fixed insert over the hollow shaft. The two spools are moved apart by a threaded insert shaft so that the cine drive can engage the drive cam (5f) on one side of the housing. The cassette is simple to operate and requires no complex layout to ensure a smooth running. When the threaded insert is removed the two spools fall together and are held by friction.