In this manner it was possible to hear a Morse code dash or dot in the telephone.
By a modification of this apparatus the message, instead of being immediately re-transmitted into the second cable, can be punched on a paper slip, which can be inserted in the usual way into an automatic transmitter, so as to send either cable or Morse signals.
The relay itself served to actuate a Morse printing telegraph by means of a local battery.
It was found impossible to make the Morse ink writer so sensitive that it could record signals sent over land lines of several hundred miles in length, if the speed of transmission was very much faster than that which could be effected by hand, and this led to the adoption of automatic methods of transmission.
In the course of this voyage he noticed that the signals were received better during the night than the daytime, legible messages being received on a Morse printer only 700 m.
Congress, however, adjourned without making the appropriation, and meanwhile Morse sailed for Europe to take out patents there.
Among the other buildings are: Morse Hall, Franklin Hall, Sibley College, Lincoln Hall (housing the college of civil engineering), Goldwin Smith Hall (for language and history), Stimson Hall (given by Dean Sage to the medical college), Boardman Hall (housing the college of law), Morrill Hall (containing the psychological laboratory), McGraw Hall and White Hall - these, with the library, forming the quadrangle; S.
In 1847 Morse was compelled to defend his invention in the courts, and successfully vindicated his claim to be called the original inventor of the electromagnetic recording telegraph.
Hence according as the trains of oscillations are long or short so is the sound heard in the telephone, and these sounds can be arranged on the Morse code into alphabetic audible signals.
This receiving apparatus, with the exception of the Morse printer, was contained in a sheet-iron box, so as to exclude it from the action of the sparks of the neighbouring transmitter.