New-York tribune., 1885-01-17
nxro1ur1oy TO DE MADE BY rEEEMErRY.

INSTRUMENTS MADE To MEASURE AND RECORD
HEAT AND PRESSURE AT DISTANCE.
number of gentlemen. representing various bust
and professional interests met together recently In
the Washington Building, where the wellknorn In
vontor, Charles l.. Clarke. explained TO them the
and operation Of the instruments used in telemetry
The walls were hung with dials and gauges In neat
oaken frares At intervals the hands the dals and
The pressure indicators in the closed tubes moved
automatically with sharp click simultaneously the
change was recorded in pencil between graduated
lines on the cock-worked cylinder below. Some OF
the instruments were set to ring an alarm within
certain limits Of measurement. single cell battery
supplied the requisite electric current.
" Each Of these instriments," said Mr. Clarke, Ia
connected by wire with it. counterpart in another part
of the building They ars at work, transmitter
and receiver, in indicating and recording temperature
aud pressure The word telcmeer has heretofore been
applied only 10 the instrument used tor determining
tue distance from gun 10 the object aimed at by the
artillerist We have given IL Sider signcaon, and
tho teleneter system or teemetry now incl udes
whole series of instruments used indicate and record
motion at "A distance. Gu this telcthermometer the
Temperature the roof of this building may be read.
The Thermometer indicates temperature OF TO- +. IN
this ROOM outside IL l. 2O1 F. ard the mercury is falling
n, appears by the sclf-recording attachment dup-
cate OF this instrument hangs IN the basement OF this
building he engineer is thus able 10 regulate his
supply OF steam in the most economical manner
Several city officials who were'I resent. have sng-
ge,tod a variety Of uses for the teethermometer IN
their departments In the city hospitals the tempera-
ture of the wards is OF vital Importance sad one the
supcrintendeuts Office could 5e connected with them
by tfis means and the condition of every room known
al glance.
" ihe same system would apply to the ward school
buildings" remarked another.
" observe bell attached TO the instrument; could
that be made to ring at any desired temperature
qucried official connected with the Fire Department
" Certainly" said the inventor. 10 Is intended with
this attachment tor an automatic fire alarm. Ihe
moment tho temperature N warehouse reaches an
abnormal point ti, bell on the receiver rings at Fire
Headquarters. No device in use Is so simple and so
elective lire detective. Also in all kinds OF manu-
featuring industries the OF the eethermometer has
an instant application. Fo- getting NJ extremes Of
temperature behnd closed doors or IN confined places
IT is invaluable BY IL brewers may know the teInpera
OF the vats wine merchants OF their vaults orss
of their greenhouses, aud poters ana bakers OF tue
ovens lts introduction into coldstorage warehouses;
grain elevators mills and rehnerics Ui all descriptions
Is, when its advantages arc known, only question
of time.
- The Naval and Signal Service need just such in
struments for their meteorological and scientific obser
vatIons Deep sea temperatures weather variations
on tie tops Of mountains or in uniDhaDltaDe places
can be taken aud recorded automatically az any
gwen distance from the point ot observation, ana with
absolute accuracy With telegraph line TO the pole'
the scientific explorer would not have to leave oon
paratsoy temperate climate to study the daily weather
record IN polar latitudes.
The telebarometer on the same principle ihdcates
and records barOmetic pressures at distance LiKo
the telethermOmeter its value In continuous meteoro-
logical Investigations is obvious IL has large sphere
of usefulness indicating barometrie pressures in
mines The teleD Danometer, electric steam guago,
the third these Instruments used in this office to
Indicate and record the pressure In five boilers used IN
the building II Ia provided with an electric alarm bell
to give warning when tho pressure approaches the
danger point Every variation IA also automatically
recorded, and with such watchman acoidents result
ing from Irregularities of pressure in steam boilers
should be at least much ess frequent than formerly
Apply the teemanomeer ut oil the points Of disribu
tion in steam heating company and the various pres:
sures can be instsntaneously known 1t the central
station
I" The last of these instruments indicates and records
at distance the height Of water In storage reservoirs
dams, lakes. tanks Tidal observations may be re-
ported In this way The instrument which hangs IN
Of water in the tanks and thus secures tho safety of
the five hydraulic elevators In this building"