Recorder, Morse

A telegraphic receiving apparatus for recording on a strip of paper the dots and lines forming Morse characters as received over a telegraph line. Its general features are as follows: A riband or strip of paper is drawn over a roller which is slightly indented around its centre. A stylus or blunt point carried by a vibrating arm nearly touches the paper. The arm normally is motionle and makes no mark on the paper. An armature is carried by the arm and an electro-magnet faces the armature. When a current is pa ed through the magnet the armature is attracted and the stylus is forced against the paper, depre ing it into the groove, thus producing a mark. When the current ceases the stylus is drawn back by a spring. IMG:8956969607833025625_452F285.jpg: Fig. 285. INKING ROLLER MECHANISM OF MORSE RECORDER. In some instruments a small inking roller takes the place of the stylus, and the roller is smooth. The cut, Fig. 285, shows the plan view of the ink-roller mechanism. J is the roller, L is the ink well, Cl is the arm by which it is raised or lowered by the electro-magnet, as in the embo er. S S is the frame of the instrument, and B the arbor to which the arm carrying the armature is secured, projecting to the right. A spring is arranged to rub against the edge of the inking roller and remove the ink from it. The paper is fed through the apparatus by clockwork. At the present day sound reading has almost entirely replaced the sight reading of the recorder.