The telegraph in American and Morse memorial (1886)
Reid, James D · New York, Printed for the author by J. Polhemus · leaf 84
Diagram io. point, and therefore the zigzag sliding movement was adopted. Thepencil as employed in Diagram 9, at g^ was not the only marking instru-ment devised and put in operation in the earlier instruments. Besidesthe direct action of the pencil as in Diagram \o, fountain-pens of variouskinds,… … Diagram as shown in Diagram 12, were used, the latter being supplied with inkfrom a sponge with which it was in contact. All these were used withmore or less of success. I 62 Morse Memorial. The same r^j-/^//, however, to ^\\.^recorded characters representing nu-merals and letters, and words and…
Morse, Samuel Finley Breese, 1791-1872 · Telegraph
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