provements in Electric Alarms
Year: 1895

page_text: PROVISIONAL SPECIFICATION
Improvements in Electric Alarms
I, ALEXANDRE DUCFUX of 4 Place Gambetta, Amiens (Somme) France
Clock Maker d hereby declare the nature of this invention to be as follows
This invention relates to electric alarms and has for its object to enable any
desired number of individuals in large or small hotels or in private house to be
called o awakened 1his can be arranged by means of this invention so that all
can be called at the same hour or each one at different predetermined times
according to the several wishes of each individual, thus rendering them independent
of the servants of the hotel This is effected by automatically actuating at the
desued times electric bells placed in the oms of the individuals to be called
The bells will ng continuou ly until the curre it is interrupted by meins of
Sitch placed within each of the occupe of the room
According to the invention electric bell is placed in each room and the wire,
of same are brough to the clock about to be described, the wne of each bell
ending in a termin il, preferably situated on the face of the clock
This invention further consists of the arrangement and disposition of the wire>
and of bridge which is to effect the electrical connection bet veen the timepiece
and the bells
In carising out the invention I may employ a square or other shaped board of
wood in the centre of which is an ordinary cloch dil provided with the usual
clock movement contained in a box On one of the sides of this box are binding
screws in communication with the bells of the different apartments, twelve by
way of example, but the number can of course vary
These twelve binding screws
are connected to other binding screws placed preferably on the dial or front part
of the clock, all of them being numbered up to 12, corresponding to the number of
rooms
In order to obtain electrical communication every quarter of an hour from the
hour hand with the bells of the apartment I place upon the circumference of the
travel of the hour hand 48 contacts The hour hand is provided with a contact
passing with slight friction over the 48 contacts which contacts are electrically
connected with 48 other binding crews aanged preferably on the front of the
clock and in a circle a little distance away
The current from the battery arrives bv a binding screw situated upon the side
of the box and is in electrical contact (preferably through the clockwork supports)
with the hour band
In order to establish electrical communication by the movement of the clock or
of the hour hand with the bull of each chamber it is necessary to form a bridge
between the binding screw connected with the hour hand and the binding screw in
connection with the bell This is effected by means of a small piece of wire
having at each end a small cap It is sufficient to place the cap upon the binding
screw corresponding to the hour at which it is desired the call to be made, and
the other cap upon the binding screw corresponding with the number of the
apartment
Dated this 30th day of April 1895
JMEWBURN & ELLIS,
55 and 56 Chancery Lane, London, Chartered Patent Agents

page_text: Improvements in Electric Alarms
I, ALEXANDRE DUCELX of 4 Place Gambetta, Amiens (Somme) France,
Clock Maher, do hereby declare the nature of this invention and in what manner
the same is to be performed, to be particularly described and ascertained in
and by the following statement
This invention relates to electric alarms and has for its object to enable any
desited number of individuals in large or small hotels or in private houses to be
called on awakened This can be arranged by means of this invention so that all
can be called at the same hour or each one at different piedetermined times,
according to the several wishes of each individual, thus rendering them independent
of the civants of the hotel 1 bis is effected by automatically actuating at the
dested times electric bells placed in the rooms of the individuals to be called
The bells willing continuously until the current is interrupted by means of a
switch placed within reach of the occupier of the room
According to this invention an electric bell is placed in each room and the wires
of the same are brought to the clock about to be described the wires of each bell
ending in a terminal preferably situated on the face of the clock
This invention further consists of the arrangement and dispo ition of the wires
and of a bridge which is to effect the electrical connection between the time piece
and the bells
My electric alarm will be fully understood on reference to the annexed draw ings
Figure 1 of which is a front view showing the 48 electric contacts the arrangement
and disposition of which constitute an essential feature of the invention
Figure 2 is a view of the interior of the apparatus showing the passage of the
wires into and out of the same where they are connected to the wires of each of
the bells by the individuals who wish to be called thus rendering them independent
of the servants of the hotel
Figure 3 shews the arrangement of the wire by the aid of which I establish
electrical communication by the movement of the clock or of the hour hand with
the bell of each chamber at each end of this wit is a small cap or piece g g¹
which is placed upon the binding screws
In carrying out this invention I employ a quare or other shaped board of any
suitable wood in the centre of which is an ordinary clock dial (provided with the
usual clock movement M contained in a box B On one side box arc
binding screws bb bb etc (Figure 1) in communication with the bells of the
different apartments the number of binding, sercy shown is 12 this being the
number of apartments to be communicated with but the number can of cour e
vary The 12 binding screws bb' 1 betc are connected to other binding
screws a a¹a a placed preferably on the dial or front part of the clock and they
are numbered up to 12 corresponding to the number of rooms
In order to obtain electrical communication every quarter of an hour from the
hour hand with the bells of the apartment I place upon the circumference of the
travel of the hour hand Y 48 contacts-1 2 3 4 5 6 &c The hour hand Y 15
provided with a contact I passing with slight friction over the 48 contacts which
contacts are electrically connected with 48 other binding screws 11 21 31 4¹¹
6 71 etc arranged on the outer part of the dial
The current from the battery arrives by the binding screw X situated upon the
side of the box B and is connected at S to the support 1 of the clock work
movement
In order to establish electrical communication by the movement of the clock or
of the hour hand with the bell of cach ch nl r ti Htet ry to form e bric
between the binding screw connected with the hour band and the binding screw

page_text: in connection with the bell This is effected by means of a small piece of wire
having at each end a small cap 9 9¹ (Figure 3) It is sufficient to place the cap q
upon the binding screw corresponding to the hour at which it is wished the call to
be made o lo for example (Figure 1) and the other cap g¹ upon the binding screw
corresponding with the number of the apartment for example No 10 as in
Figure 1
Although I have shown 48 contacts in order to obtain warnings every quarter
of an hour I wish it to be clearly understood that in cases where it may appeal
useful to make it work more or less often I reserve to myself the right to increase
or diminish the number of contacts with the hour hand
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is
-
An electric alarm whereby any number of persons may be called by means of
one instrument at the same or different times the said alarm comprising a clock
having contacts in connection with the hour hand terminating in binding screws
preferably at the face of the dial which dial is also provided with binding screws
in connection with bells in the various rooms and of means for bridging the two
sets of binding screws, substantially as described and shown in the accompanying
drawings
Dated this 29th day of January 1896
J C MEWBURN & ELLIS,
55 & 56 Chancery Lane, London, Chartered Patent Agents