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The American Electro Magnetic Telegraph: With the Reports of Congress, and a Description of All Telegraphs Known, Employing Electricity or Galvanism — John Shaqi

The American Electro Magnetic Telegraph: With the Reports of Congress, and a Description of All Telegraphs Known, Employing Electricity or GalvanismVail, Alfred

History

The American Electro Magnetic Telegraph: With the Reports of Congress, and a Description of All Telegraphs Known, Employing Electricity or Galvanism

Name: The American Electro Magnetic Telegraph: With the Reports of Congress, and a Description of All Telegraphs Known, Employing Electricity or Galvanism
Author: Vail, Alfred

Vail, Alfred

Telegraph -- History

By examining the telegraphic alphabet, the characters will be found to
be made up of dots: short and long lines—and short and long spaces.
A single touch of the key, answers to a single dot on the paper of
the register; which represents the letter, E. One touch of the key
prolonged, that is, the contact at the key continued for about the
time required to make two dots, produces a short line, and represents
T. A single touch for about the time required to make four dots, is
a long line, and represents L. A single touch for about the time
required to make six dots, is a still longer line and represents the
0 of the numerals. If the use of the key be suspended for about the
time required to make three dots, it is a short space, used between
letters. If suspended for the time required to make six dots, it is a
long space, used between words, and a longer space is that used between
sentences. These are the elements which enter into the construction of
the telegraphic characters, as used in transmitting intelligence. The
alphabet is represented by the following combination of these elements.

                            ALPHABET.

    ·-  -···  ·· ·  -··   ·   ·-·  --·  ····  ··  -·-·  -·-
    A    B     C     D    E    F    G    H     I   J     K

    ——  --  -·  · ·  ·····  ··-·  · ··  ···  -  ··-  ···-
     L   M   N    O     P      Q     R    S   T   U     V

    ·--  ·-··  ·· ··  ··· ·  · ···    ·--·  ··-··  ···-·  ····-
     W     X     Y      Z      &        1     2      3      4

    ---  ······  --··  -····  -··-  ———
     5     6       7     8      9    0

Suppose the following sentence is to be transmitted from Washington to
Baltimore:

    -  ····  ·    ·-  --   ·  · ··  ··  ·· ·  ·-  -·    ·  ——  ·  ·· ·
    T    h   e     A   m   e    r    i    c    a   n    E   l   e   c

    -  · ·· · ·    --  ·-  --·  -·  ·  -  ··  ·· ·    -  ·  ——  ·  --·
    t    r   o     M    a   g   n   e  t   i   c      T  e   l   e   g

    · ··  ·-  ·····  ····    ··  -·  ···-  ·  -·  -  ·  -··   -··· ·· ··
     r     a    p      h      i   n   v    e  n   t  e   d     b    y

    ····· · ·· · · ·-·  ·  ···  ···  · ·  · ··    ···  ·-·  -···  --  · ·
      P    r    o   f   e   s    s    o    r       S    F    B    M    o

    · ··  ···  ·    · · ·-·    -·  ·  ·--    ·· ··  · ·  · ··  -·-
     r     s   e     o   f     N   e   w       Y     o     r    k

    · ·  -·    -···  · ·  ·-  · ··  -··    · ·  ·-·    -  ····  ·
     o   n       b    o    a    r    d      o    f     t    h   e

    ·····  ·-  ·· ·  -·-  ·  -    ···  ····  ··   ·····    ···  ··-  ——
      p     a    c    k   e  t     s     h    i     p       S    u    l

    ——  ·· ··    ·· ·  ·-  ·····  -    ·····  ·  ——  ——    · ·  -·
     l     y       C     a    p    t      P    e   l    l      o   n

    ····  · · ··   ·····  ·-  ···  ···  ·-  --·  ·    ·-·  · ·· · ·  --
     h    e   r      p     a   s    s    a   g   e     f    r    o   m

Public-domain text, read in full here on John Shaqi.

The American Electro Magnetic Telegraph: With the Reports of Congress, and a Description of All Telegraphs Known, Employing Electricity or Galvanism

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