U.S. Philips Corporation

Horst Wurscher

Manfred Adamek

Horst-Werner Bach

Gerhard Brenner

Gerhard Hauptmann

In order to enable ink ribbon transport and ribbon reversal on the one hand and on the other hand the withdrawal of the printing head from the platen to be performed by means of only a single motor, a pawl-and-ratchet device is provided between the drive gearwheels for the reel holders and the drive motor. The cord for the withdrawal of the printing head is connected to a deflection lever which follows the profile of a cam disc of a cam mechanism, which is connected via a further pawl-and-ratchet device to the common shaft driven by the electric motor. The two pawl-and-ratchet devices drive in opposed directions. The common drive motor is reversible and is electrically controlled by the cam mechanism.

Drive for transporting and reversing an ink ribbon, and for withdrawing

A noise-reducing hollow platen having a hard external tube filled with steel or lead spheres.

Platen for printing devices

A feeder device having a supply magazine for record carriers and an associated separating device. The magazine is pivoted to bring a top sheet into contact with a feed roller, and the pivot motion is used to control the separating device so that more reliable separation is obtained.

Card feeder device

A printing device and a carriage transport motor are mounted separately on a carriage and driven in a step-wise manner. The motor shaft rolls over a rubber guide at least under the influence of the weight of the motor, while a driving pinion on the shaft engages a rack.

Serial printing device

An ink ribbon device having a holder for a ribbon spool which is pivotably mounted on a frame which supports the spool drive device. When the spool is inserted into the holder, a slide on the holder top is operated against the force of a spring, and engages guide slots. The holder then automatically is guided to the operating position and the spool engages the drive device. Upon movement of the holder for unloading, the spool is ejected by the spring.

Growing community of inventors

Wilnsdorf, Germany

Horst Wurscher