The Indianapolis journal. [volume] (Indianapolis [Ind.]) 1867-1904, 1885-09-13
TELEMETRY.
All Kinds of Contrivances for Detecting
What Happens in the Atmosphere.

What Happens in the Atmosphere.
New York Mail and Express.
"Telemetry has become Of such importance
that an organization has been formed known as
the Ielemeter Company" said a gentleman
speaking of recent electrical inventions TO a
reporter yesterday. 'The system includes series
of instruments operated by electricity, for indi
eating and recording temperatures automatically
and continuously barometric, steam, water,
electrical, and all other pressures forces at a
distance. Take for instance, the telethermome
ter, which indicates and records the temperature
OF a distant point. Each instrument has a
maximum and minimum bar. If you want
10 register a temperature of say $40 degrees
and don't dare go beyond $50 degrees,
put the maximum bar at 345, and as soon as the
temperature registers that alarm is rung and
kept ringing so long as the temperature remains
that high. 1t registers low temperature as well
as HIGH and thus gives at all times complete
knowledge and control of the temperatures
throughout an entire establishment to the man
agement of manufacturing other industries.
An interesting use to which the teethermometer
is put is in taking deepsea temperatures in it's
application to the naval and signal service, and
tor obtaining at all seasons the temperature at
high attitudes and in unnhabitable places
Other claims for this instrument are its values
by indicating on the decks of ocean steamers the
temperature of sea water; means Of prevent
ing loss and damage when put In the holds of
steamers and in cars transporting perlShable
freight, and preventing spontaneous combustion,
the great danger in the coalcarrying trade, by
instantly detecting and locating the heating of
cargoes Another of its uses is an automatic fire
alarm, indicating and recording at fire head
quarters the temperature of warehouses contain
ing valuable merchandise.
What other instruments are there in the
system?'
There are several The telebarometer, for
indicating and recording barometric pressure at
a distance The value of this instrument in
mines is particularly great. The telemanometer
which indicates and records the pressure in a
boiler at any desired number of places. The
value of this is especially great to steam heating
companies, so that they may have the pressure
of all parts of a steam distributing system ind-
Gated and recorded at central station. The
telehydrobarometer, indicating and recording
the height of water in a reservoir, storage pond,
river, lake, dam or tank. Take, for instance the
improvement of rivers and barbors. To know
accurately the height of water and of tides
throughout the day for all seasons and in all the
districts to be influenced by the proposed i'm
provemenrs, is absolutely essential. Thus the
continuous record of the acknowledgements is
superior to former methods of getting a record,
which consists in noting the height at stated
intervals. This neceSSltateS corps OF observers,
whose record, when obtained, is only partial"
"What are these instruments likeP'
''The transmitter is the portion placed where
the height of the water is measured. This is
connected with receiver placed in an Office.
The latter indicates and records the measure
taken by the transmltter by means OF electricity.
A japanned iron case encloses the works of the
transmitting apparatus The case has polished
brass ring and dial measuring ten inches in
diameter. 1t is completely protected from both
dust ard moisture A grooved brass pulley is
affixed to the back of the case. This is revolved
in one direction by wire attached to float.
and in the opposite direction by means
of counter-shaft and weight. The pulley,
when it moves, communicates its motion to the
works III the case. japanned iron frame
strongly supports the entire case, and it is also
further protected by glass case Nine and
halfinches in diameter is the measurement of
the indicating dial made for fractional divisions.
For the secondary dial for indicating even feet,
the measurement is two and three-quarters
inches in diameter. The secondary dial in the
receiver carries the alarm for ringing bell
when the height of the water reaches the limit
des, ed The record is made distinct and indel-
ible on dial fourteen inches in diameter. Three
insulated wires connect the transmitters with
the receiver and are operated by a battery OF
prism Leclanche cells, placed in the Office. The
transmtter and receiver may be located any dis
lance apart. The battery is such as is in use by
all telephone lines, and requires attention.
The instruments made are of two classes, one
indicating heights in feet and inches and the
ether in feet and decimals of foot"