The telegraph in American and Morse memorial (1886)
Reid, James D · New York, Printed for the author by J. Polhemus · leaf 84
ister, would accomplish the result better, andit was put into use almost immediately after the first trial. Lightnessin the lever was a desideratum, and this seemed to be easiest attained Mr. Morses History of his Invention. 6i by suspending it at its fulcrum/, but, especially as d.pencil was… … 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,…
Morse, Samuel Finley Breese, 1791-1872 · Telegraph
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