PHOTOCOMPOSING MACHINES

摘要

A photocomposing machine having a character drum that is stepped backwards and forwards to bring a group of character images to a photographic position; an optical system images all characters of the group at a common position and a shutter (or equivalent) mechanism selects one character of the group for imaging on a sensitized sheet. A flexible font element having characters arranged thereon in columns and rows is replaceably mounted on the character drum.