File:Der Apparat im September 1837.jpg

Deutsch: Samuel Morses Apparat im September 1837. Beschreibung: The apparatus was described by Professor Leonard D. Gale as consisting of a train of clock-wheels to regulate the motion of a strip of paper about one and a half inches wide ; three cylinders of wood, A, B, and C, over which the paper passed, and which were controlled by the clock-work D that was moved by the weight E. A wooden pendulum, F, was suspended over the centre of the cylinder B. In the lower part of the pendulum was fixed a ease in which a pencil moved easily and was kept in contact with the paper by a light weight g. At h was an electromagnet, whose armature was fixed on the pendulum. The wire from the helices of the magnet passed to one pole of the battery I, and the other to the cup of mercury at K. The other pole of the battery was connected by a wire to the other cup of mercury, J. The portrule represented below the table contained two cylinders connected by a band. M shows the composing-stick in which the type were set. At one end of the lever O was a fork of copper wire, which was plunged when the lever was depressed into the two cups of mercury J and K, while the other end was kept down by means of a weight. A series of thin plates of type metal, eleven in number, having one to five cogs each, except one which was used as a space, completed the apparatus.