Daily Republican., 1881-04-14
ELECTRIC FIRE ALARM.
sTIPCLATI0Ns OF THE CON-
TRACT JUST SIGNED.
The Work to be Pushed and Fin.
ished i'm Ten Weeks-What
the Contract Calls For.

81. TItlh i1on'j Va
more, who, as the agent for the Game-
we'll Fire A larm Telegraph, has received
the contract for the erection in Will
mington of complete system OF cleo
trio fire alarm, said to REPUBLICAN,
reporter Yesterday that he would have
the work done and the whole apparatus
in working order by the first of July.
The work will be commenced imme-
diately.
THE CONTRACTS STIPULATIONS.
The contract has Just been formally
signed. The requirements are to this
effect
Sixteen automatic, mountaineering
signal boxes, to be connected in two
metallic circuits or loops witha repeater
at the City Hall; said circuits not TO
exceed five miles of wire. The signal
stations or street boxes shall have their
outer doors provided with trap locks,
with five keys to each box-all the keys
to he uniform and capable Of operating
the locks of any box in the city.
The wires entering and leaving the
boxes shall he properly insulated and
enclosed in iron pipes, extending from
the tops of the boxes, to a point near
the lower croSS-arm or bracket.
Each box, in addition to the necessary
machinery for sending in an alarm,
Shall be provided with u Morse tele-
graph key, lightning arrester, and
gong. the striker OF which shall be at
tached to a magnet connected with the
elect mechanism of the box, for test
ing, engineers and other signals; proper
grOunl-cscapGS shall be attached to
all the lightning arrestor3.
There shall be furnished eight electro
mechanical gong-strikers, with gongs
rut less than sixteen inches in diameter,
for the engine houses, one OF which
shall bc placed in each engine house of
the tire department.
There snail be furnished an autOm attic
repeater, 80 constructed and arranged
as 10 accommodate two circuits, so that
in case of a break or interruption to one
of the circuits, the other Shall remain
intact and undisturbed, and capable of
being used for the reception and trans
mission Of alarms of fire.
The poles shall be Of chestnut timber,
not less than % feet long and six inches
in diameter ut the top. Cross arms are
TO be used when more than one wire is
on a pole when only one wire, Il bracket
may be used. The crosS-arms shall be
Of dressed timber, 3X4 inches, and fast
ened to the pole by screw-bolt and
two spikes. The brackets shall be Of
white oak, with screw tops, and fastened
to the poles with two nails Of suitable
size. All pavementS to be rclaid when
torn up to set the poles The in
sllat0rS shall be Of the kind known as
screw glass insulatorS Tn" wire used
shall he of galvanized iron, No. l5gauge
subject to the standard tests for con
ductiyity, etc. All the joints in the
line wire are to be made twisted, not
less than three turns on each side, and
carefully soldercd. The tie wires to be
of the same gauge and quality AZ the
line wires. Each tie wire to take one
turn around the inSulatOr and to be Sc
clrely fastened to the line wire on each
side.
Whenever wires pass through wall
or floors or other parts Of buildings,
they shall be insulated with rubber tub
ing.
There shall be also furnished a sutti-
cient number Of cells Of battery to pro-
perry work the machinery.
There shall also be furnished two gal
vanomctcrs, permanently located in the
circuits, for the purpose of locating in
tcrruptiOnS.
There will also be furnished one great
bell-striker, to sound alarms Oftire upon
the bcll at the City Hall.
All the work done and all the. mate
rial furnished shall be Of the best quail
ity, in every respect.
The contract is to be complete within
ninety days, and the company agrees to
protect the city in the use ofall its pa
tents, and guarantee the perfect work.
ing OF the system and keep it in repairs
and free from all damages that may
arise from defects in the machinery
used by them for one year from the date
Of completion.
The location Of the boxes has already
been given in the. e.REPUBLICAN. Other
details will be given as soon as arran-
gcd