Found 1 items, similar to Electric telegraph.
English → English
Definition: Electric telegraph
, n. [Gr. ? far, far off (cf. Lith. toli)
+ -graph: cf. F. t['e]l['e]graphe. See Graphic
An apparatus, or a process, for communicating intelligence
rapidly between distant points, especially by means of
preconcerted visible or audible signals representing words or
ideas, or by means of words and signs, transmitted by
Note: The instruments used are classed as indicator,
type-printing, symbol-printing, or chemical-printing
telegraphs, according as the intelligence is given by
the movements of a pointer or indicator, as in Cooke &
Wheatstone's (the form commonly used in England), or by
impressing, on a fillet of paper, letters from types,
as in House's and Hughe's, or dots and marks from a
sharp point moved by a magnet, as in Morse's, or
symbols produced by electro-chemical action, as in
Bain's. In the offices in the United States the
recording instrument is now little used, the receiving
operator reading by ear the combinations of long and
short intervals of sound produced by the armature of an
electro-magnet as it is put in motion by the opening
and breaking of the circuit, which motion, in
registering instruments, traces upon a ribbon of paper
the lines and dots used to represent the letters of the
alphabet. See Illustration in Appendix.
. See under Acoustic
, a telegraph in which letters of the
alphabet and numbers or other symbols are placed upon the
border of a circular dial plate at each station, the
apparatus being so arranged that the needle or index of
the dial at the receiving station accurately copies the
movements of that at the sending station.
, or Electro-magnetic telegraph
telegraph in which an operator at one station causes words
or signs to be made at another by means of a current of
electricity, generated by a battery and transmitted over
an intervening wire.
. See under Facsimile
. See under Indicator
, an electric telegraph by means of which a
drawing or writing, as an autographic message, may be
exactly reproduced at a distant station.
, an electric telegraph which
automatically prints the message as it is received at a
distant station, in letters, not signs.
, a telegraph in which preconcerted
signals, made by a machine, or otherwise, at one station,
are seen or heard and interpreted at another; a semaphore.
Submarine telegraph cable
, a telegraph cable laid under
water to connect stations separated by a body of water.
, a telegraphic cable consisting of several
conducting wires, inclosed by an insulating and protecting
material, so as to bring the wires into compact compass
for use on poles, or to form a strong cable impervious to
water, to be laid under ground, as in a town or city, or
under water, as in the ocean.
([-e]*l[e^]k"tr[i^]*kal), a. [L. electrum amber,
a mixed metal, Gr. 'h`lektron; akin to 'hle`ktwr the beaming
sun, cf. Skr. arc to beam, shine: cf. F. ['e]lectrique. The
name came from the production of electricity by the friction
1. Pertaining to electricity; consisting of, containing,
derived from, or produced by, electricity; as, electric
power or virtue; an electric jar; electric effects; an
electric spark; an electric charge; an electric current;
an electrical engineer.
2. Capable of occasioning the phenomena of electricity; as,
an electric or electrical machine or substance; an
3. Electrifying; thrilling; magnetic. “Electric Pindar.”
4. powered by electricity; as, electrical appliances; an
electric toothbrush; an electric automobile.
, or Electric aura
. See under Aura
. See Battery
. See under Brush
. See Telegraph cable
, under Telegraph
. See under Candle
(Zo["o]l.), one of three or more large species
of African catfish of the genus Malapterurus
(esp. M. electricus
of the Nile). They have a large electrical
organ and are able to give powerful shocks; -- called also
. See under Clock
, and see
, a current or stream of electricity
traversing a closed circuit formed of conducting
substances, or passing by means of conductors from one
body to another which is in a different electrical state.
, or Electrical eel
(Zo["o]l.), a South
American eel-like fresh-water fish of the genus Gymnotus
), from two to five feet in length,
capable of giving a violent electric shock. See
(Zo["o]l.), any fish which has an
electrical organ by means of which it can give an
electrical shock. The best known kinds are the torpedo
, or electrical eel
, and the electric cat
. See Torpedo
, and Gymnotus
, the supposed matter of electricity;
(Elec.), a collection of electrical points
regarded as forming, by an analogy with optical phenomena,
an image of certain other electrical points, and used in
the solution of electrical problems. --Sir W. Thomson.
, or Electrical machine
, an apparatus for
generating, collecting, or exciting, electricity, as by
. See Electro-motor
. (Physics) See under Osmose
, a hand pen for making perforated stencils for
multiplying writings. It has a puncturing needle driven at
great speed by a very small magneto-electric engine on the
, a railway in which the machinery for
moving the cars is driven by an electric current.
(Zo["o]l.), the torpedo.
. See Telegraph