John Ambrose Fleming,
1911 Encyclopædia Britannica
(1911)
“ Recorders vary in details of construction, but all have the same object, namely, to record the intervals during which the current is applied to the line. In the earlier forms of instrument the record was made by embossing lines on a ribbon of paper by means of a sharp style fixed to one end of a lever, which carried at the other end the armature of an electromagnet. The form of Morse recorder Morse ink-writer. almost universally used in Europe makes the record in ink, and hence is sometimes called the “ink-writer.” ”
