Interchange magazine for measurement recording device ribbons - prevents overwriting of last record by return mechanism consisting of cam moving lever operating on slide bar

摘要

A changing-magazine is for ribbons of measurement devices with measurement writing attachments. The ribbon is brought into the working position and replaced in the magazine after recording has taken place. The magazine prevents overwriting of the last recorded measurement value and operates without additional ribbon tensioners. Each ribbon has an associated carrier frame with arms holding the ribbon under tension. The carrier frames of different ribbons are placed on top of each other in the magazine (1). The return mechanism consists of a cam (6) moving a lever (8) operating a slide bar (10) in the magazine (1) with two draw levers (14, 15) and a ribbon resetting mechanism (11, 12, 13).