Daily national Republican., 1864-10-11
LOCAL AFFAIRS.

Tue FrRB-ALARM AND POLICE I 'SLEohapn. e "a -
This telegr .ph having been finished - h.nScd
tractors, John y. Hennard b Co were "" W.
over 10 the city authorities this afternoon. We
therefore append briei account OF the manner 50
which the apparatus IL worked, and also hlstoI1 i
Of the inventloni which We extract irom prlnteu
The city is divided into as many sigual stations
i pGGp D PNsStSSn sntS Rss sssTs
wires extended TO eyo'y part Of the city, con,
Meeting with the sgoal boxes and alarm bells, and
form the "signnl circuits" and "aarm circuits,
and are carr ed poles or over the houses on the
most lofty Of which they are supported BY insa-
lie sifeuit. ditfer IRON other telesfaphs, ia be-
ing completely inGtaiiic, nhestion being msde
teIru ptohs; any such break Instantly reporting
itself t. the operator on duty BY Rigging bell st
the central office. insure the constant attend
Ance and vlEilAnee OF the operator, II is made
part OF his duty, every twenty minutes or otteper,
as is deemed u cetslry 70 test the batteries h;-
lust tle Apparatus eto,, the performance Of which
10 re corded upon disc OF paper BY pencil moyed
by au el. ctro-mAgnCt, enclosed In a case beyond
hs each, and, therefore, aperfeotly true teitsle
Each signal box 10 furnished with telegraph
key for police purpcseI, and, by simple set OF
sigma 9, any policeman can communicate with the
CS9r 0SS S ST sDy Par Si tse Sa,s box
The call bell at the Central office calls the Aten-
hon of the operator to the receiving Rstiuments,
and upon seeing the records, he tutnn Immediately
to the repeater places indicator over the figure
2 and the other over the figure o, and releases the
MECHANISM { the I,peNter, which starts AZ once,
alarm bells In the bell-to Ser, the "gonssn n the
engine houses, and the boxes III oughout the city
to strike the n mber OF the box thusi -,
making a short pause b,tGeep the 2 and 81 AID
con inuing TO do 90 as long ah the regulations OF
the Fire Department may require This ~ accom-,
At each blow by q telegraphic impulse, communi.
Gated a. suitable intervals by the arrangements OF
tss When l, 70
"switehss,m - dlseonneoJs one or more OF the alarm
qirc Its from the repeater and the bells ION those
circuits are silent.
HISTORY or the FIRE AND POLICE IgLEoRAPH.
At an early period in the history OF the electro
magnetic Telegraph IN this country Dr ChaSntingf
and published, in June, 1916, general statement
Of The principles which now underlie the s,stem
Of the American hte-hlArm and police Telegraph.
THIS ia ieved TO have been the FIRST publication
in which the application Of tho telegraph to the
PurEose 4 giving public alarm in case oi h'e was
The Telegraphic Alarm system, subsequent to
isI5 tecame the subject OF public stions
and its adoption was at length reeommended by
Hon JoLiah Quincy, :, mayor Of the city OF Bos-
ton, in his ohlciSi addreUs OF January, is4S. At
this time rr. Noes @; Farmer, telegrsphie engi-
nCer Of Dosdn, directed his atteut on to the tub-
iset, and II Ia to the sc entHe skill and inventive
geuius of DR.. Charming and hT. atmer that we
are indebted for the Fire Telegraph, 1t was the
mechaniFm Of the human o. stem which tuggestt d
| tn DR.. Claiming the "signali ans Alarm" Cir
cults. The analogy with the functions Of the mo-
tor Aad sensitive nerves OF tho animal 0rganiza n
tiOn is complete The central nice is the brain,
! the wlres the NERVOUS system.
in 1851. DR.. Claiming submitted to the city gov
ernment Of Boston a detailed plan Tor hre-alarm
telegraph, which was adopted, and on the 2sth day
OF April, 1882 the system was put into practical
operation.
In 1854 the Hre-bells Of New York, seven In num-
Der, were cont ected by telegraph wire, so thAt
an alarm which had become known to the watehs
men in one, might be BignAllzed to AL the others.
SuhscQue nifty, the American htealarm and police
system was adopted, aud contract Tor stil, fur
thcr extension Of the Nrc telegraph 10 now 10 the
| pf,Fc me- vi n nht
hre alarm and police telegraph was Phil ,delphiat
| where II went into operation on the 10th April,
1856 Nc.t Came In order It. Louis, Baltimore,
New Orleans, Chailebton, In the United States,
| and Montreal in Canada.