Copier with tumbler gear-driven carriage for originals - has change gears mounted on pivotable support with end stops for carriage advance or return

摘要

Optical copier comprises a reciprocating carriage for the originals, driven by a tumbler gear, in which a gear mechanism, which advances and returns the carriage by means of change gears mounted on a pivotable support, is connected to drive gears on the appts. side. The support for the change gears is acted on by a spring which tilts it into its end positions. A control is connected to a movable end stop for the carriage transfer for halting at one of its two end positions. The control pref. includes a control slide which moves parallel to the carriage and which bears a stop which, in the two end positions of the carriage, extends into the path of stops fixed to the carriage. The change gears are thus controlled directly and mechanically by the carriage in a simple reliable manner.