Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 611
important improvement was effected when, instead of steel pointsfor embossing the message, the Morse instrument was provided with anarrangement for printing the signals in ink; since the pressure requiredfor embossing the paper is considerably greater than that needed merelyto bring it into contact… … Fig, 286.—Morse Recording Telegraph. of the paper strip. The narrow edge of this disc is kept charged withprinters ink, which it receives from a roller. The end of the lever con-nected with the armature of the electro-magnet is formed of a light stripof metal carrying a narrow projection at the…
Inventions
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