IMPROVEMENTS IN ELECTRICAL APPARATUS FOR EMPLOYMENT IN THE INDICATING AND EXTINGUISHING OF FIRES
Year: 1882

page_text: LETTERS PATENT to Gerard Wenzeslaus von Nawrocki, Proprietor of the
firm of J. Brandt & G. W. v. Nawrocki, Patent Solicitor and Civil
Engineer of 124 Leipzigerstrasse, Berlin, Germany, for an invention of
"IMPROVEMENTS IN ELECTRICAL APPARATUS FOR EMPLOYMENT IN THE
INDICATING AND EXTINGUISHING OF FIRES." A communication from Abroad
by Felix Bahr of Warsaw in the Empire of Russia.
PROVISIONAL SPECIFICATION left by the said Gerard Wenzeslaus von
Nawrocki at the Office of the Commissioners of Patents on the 1st April
1882.
GERARD WENZESLAUS VON NAWROCKI Proprietor of the firm of J. Brandt,
& G. W. v. Nawrocki, Patent Solicitor and Civil Engineer of 124 Leipzigerstrasse
Berlin Germany
"IMPROVEMENTS IN ELECTRICAL APPARATUS FOR EMPLOYMENT
IN THE INDICATING AND EXTINGUISHING OF FIRES" A communication from
Abroad by Felix Bahr of Warsaw in the Empire of Russia.
The Invention relates to improvements in apparatus for extinguishing and
indicating the outbreak of fires in. buildings and consists in the employment of
electrical apparatus for the purpose. To this end the wires from an electrical
apparatus are carried through the room or rooms of the building having con-
nected therewith any suitable form of contact apparatus so constructed that on an
outbreak of fire they close the contact or current which action causes an armature
to open a water tap of a pipe connected with the water main and allow the water
to flow from suitable pipes arranged in any convenient manner within the room or
rooms. The pipes within the room or rooms being suitably perforated to allow the
water to fall therefrom in a spray. This arrangement is combined with a signal
arrangement which indicates the place where the outbreak of fire has occured.
In carrying out the Invention a branch pipe having a tap is connected with the
main and carried to any part or parts of the building. Within each room wires

page_text: from an electric battery are carried having connected therewith an arrangement of
apparatus which opens or closes the tap when a rise of temperature within the
room occurs In one arrangement a band of flexible and inflammable material is
suspended between a pair of pliers which material when burnt closes the pliers
and also causes the closing of the current which immediately opens the tap and
water will be injected into the room in the form of spray from the hereinbefore
mentioned pipes. In every case where the contact is to be formed the ends of the
pliers are made of platinum blades. Another form of contact arrangement consists
of a conical bush and plug connected with the ends of the wires of the current and
apart by any easy fusible metal. On an outbreak of fire the fusible metal will
melt and the said plug and bush come in contact and close the current,
Another
form of contact arrangement consists in the employment of two wires entwined
around an inflammable substance or material which is destroyed on an outbreak of
fire and the wires come in contact and close the current. The said arrangements
may be covered in to protect them from dirt and injury. An electro magnet is
inserted in the current to attract a second magnet which will release a lever and
move a rod downwards and a horizontal arm of a second lever engages into a
cylinder and rotates the same which action opens the water tap and allows of the
inlet of water into the building. A second tap connected with the branch pipe is
employed to discharge any contained water in the pipes which are carried into the
building. When the said cylinder of the magnet has been rotated as before men-
tioned it moves an arm in contact with a spring and thereby acts upon an alarm
apparatus and indicates the outbreak of fire

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Gerard Wenzeslaus von Nawrocki in the Great Seal Patent Office on
the 30th September 1882.
GERARD WENZESLAUS VON NAWROCKI proprietor of the firm of J Brandt
and G. Wv Nawrocki Patent Solicitor and Civil Engineer of 124 Leipziger-
strasse Berlin Germany "IMPROVEMENTS IN ELECTRICAL APPARATUS FOR EMPLOY-
MENT IN THE INDICATING AND EXTINGUISHING OF FIRES" A communication
from abroad by Felix Bahr of Warsaw in the Empire of Russia
The Invention relates to improvements in apparatus for extinguishing and indi-
cating the outbreak of fires in buildings and consists in the employment of electrical
apparatus for the purpose. To this end the wires from an electrical apparatus are
carried through the room or rooms of the building having connected therewith any
suitable form of contact apparatus so constructed that on an outbreak of fire they
close the contact or current which action causes an armature to open a water tap
of a pipe connected with the water main and allow the water to flow from suitable
pipes arranged in any convenient manner within the room or rooms.
The pipes
within the room or rooms being suitably perforated to allow the water to fall
therefrom in a spray. This arrangement is combined with a signal arrangement
which indicates the place where the outbreak of fire has occured. In carrying out
the Invention a branch pipe having a tap is connected with the main and is carried
to any part or parts of the building. Within each room wires from an electrical
battery are carried having connected therewith an arrangement of apparatus which
opens or closes the tap when a rise of temperature within the room occurs.
In one
arrangement a band of flexible and inflammable material is suspended between a
pair of pliers which material when burnt closes the pliers and also causes the
closing of the current which immediately opens the tap and water is injected into
the room in the form of spray from the herein before mentioned pipes. In every
case where the contact is to be formed the ends of the pliers are made of platinum
blades. Another form of contact arrangement consists of a conical bush and plug
connected with the ends of the wires of the current and apart by fusible metal.
On an outbreak of fire the fusible metal will melt and the said plug and bush
come in contact and close the current. Another form of contact arrangement con-
sists in the employment of two wires entwined around an inflammable substance
or material which is destroyed on an outbreak of fire and the wires come in
contact and close the current. The said arrangements may be covered in to
protect them from dirt or injury. An electro magnet is inserted in the current
to attract a second magnet to release a lever and move a rod downwards and a
horizontal arm of a second lever engages into a cylinder and rotates the same
which action opens the water tap and allows of the inlet of water into the build-
ing. A second tap connected with the branch pipe is employed to discharge any
contained water in the pipes. When the said cylinder of the magnet has been
rotated as before mentioned it moves an arm in contact with a spring and thereby
acts upon an alarm apparatus and indicates the outbreak of fire.
And in order that the Invention may be the better understood I have caused to
be appended hereto a Sheet of Drawings marked with letters of reference
Fig. 1 indicates the arrangement of the parts of the apparatus The branch
pipe c of the water main pipe A is provided with a tap B arranged to be opened
by the apparatus when the electric current to which the said apparatus is connected
is closed. The pipe c is carried into the room or rooms in connection with the
perforated pipes through which water is forced and falls in a spray into the room.

page_text: An
Any suitable number of pipes D can be used and arranged either vertically or placed
horizontally. The apparatus hereinafter more particularly described is connected
with a current S which is led from one pole of the battery G through the galvanic
meter El to any desired part of the room or rooms in which any of the contact
arrangements as E E E are placed and then returns to the other pole of the
battery. The water left in the pipes can be drawn off by the tap F. The said
contact arrangements are so constructed that on a rising of temperature within
the room the pipe will be opened. The apparatus can be worked by any of the
described contact arrangements and will have to be inserted by itself in a separate
branch current. The arrangement B' is for this purpose the ends of the current
wires are connected with the ends of the pliers which are kept open by the band c
of inflammable material. When the band has been burnt the pliers close.
arrangement shown by F can also be used for the same purpose, a small bar of
fusible metal being employed which on becoming fused closes the pliers. The
ends of the pliers being forced by means of a spring d' in contact when the
band c has been burnt The contact arrangement E consists of a conical bush b¹
and plug which is connected with the ends of the wire of the current and
separated by fusible metal. By a rising of the temperature the metal will melt
and the plug and bush come into contact and close the current. In E both wires
which are surrounded with an inflammable material or substance which burns
away on
a rise of temperature and a contact of the wires takes place. The
circuit wires which are led through the room or rooms can be twisted together if
required. In case of an outbreak of fire the said substance or fusible metal
immediately melts and closes the current and thereby opens the tap. In Figs 2. 3
and 4 the electro magnet is inserted into the current on the opposite side the
oscillating anchor is mounted which arrests by means of the nose m the lever l
which catches under the nose m¹ of the rod. When closing the current the electro
magnet will attract the magnet h to release the lever the rod m will by its.
weight move downwards and the arm of the lever n comes under the nose p' of
the cylinder while the lever s combined with a valve plug will rest against the
nose p The cylinder p turns in the direction of the arrow. The lever is turned
by the rod m and the lever n releases the cylinder p and levers to open the
valve B acted on by the spring and water pressure. The arm is brought into
contact with the spring t which thus closes the current s¹ in which an alarm
apparatus is inserted. The lever n is brought into its normal position by the
spring n Fig. 5 indicates the arrangement of the apparatus when a full current
is employed in which case the contact arrangements E galvanometer H and the
electro magnet will have to be moved in succession. Having now described and
indicated the nature of the Invention and means for carrying the same into effect
I would have it to be understood that I claim
P
First the represented and described forms of contact arrangements E' E² E³ E' E
by means of which when an outbreak of fire occurs the water tap B is opened and
water flows into the room in the form of spray.
Secondly the represented and described form of apparatus a consisting of the
electro magnet g anchor h lever l rod m lever n and cylinder p with noses p¹ and p
employed to open the tap B when required.
Thirdly the combination of the battery G current H the contact arrangements
and tap B with a reduced or full current.
In Witness whereof I the said Gerard Wenzeslaus von Nawrocki have
hereunto set my hand and seal this twenty third day of Sentember 1882