for Autographic Telegraph Systems.
Year: 1887

page_text: for Autographic Telegraph Systems.
I, HERBERT JOHN ALLISON, of the firm of Allison Brothers, of 52 Chancery Lane,
London, in the County of Middlesex, Patent Agents, do hereby declare the nature of
this invention, which has been communicated to ine from abroad by The Writing
Telegraph Company (Incorporated), of the City and State of New York, United
States of America, to be as follows
This invention relates to Autographic Telegraphs, and particularly to that class of
autographic telegraphs described in the Letters Patent of Great Britain granted to
me November 30th 1886, No. 15577, as a communication from the above named The
Writing Telegraph Company (Incorporated).
The object of my invention is to render apparatus of the nature in question more
effective in operation, and to obtain increased facilities when such apparatus are
employed in a system of interchange between subscribers within a district.
In the accompanying drawings which form a part of this description, and in which
like features are indicated by like figures of reference in the several views, Figure 1
is a side elevation of a switch showing connections and the method for arresting and
releasing the bell. Figure 2 is a front elevation of the apparatus shown in Figure 1.
Figure 3 is a side elevation of the receiving magnets showing the method by which
certain features of my improvements are combined therewith. Figure 4 is a top plan
view of Figure 3, and Figure 5 is a diagram illustrating the utilization of my
improvements in a District system.
In the drawings 6 indicates the switch, 7 and 8 the switch contacts for the
receiver, 9 the earth contact, and 10 and 11 the transmitter contacts.
12 indicates
a clock-work frame and 13 a wheel of the clock-work. 14 is a support secured to
the clock-work frame and having pivoted thereto an arm 15 which arm is attached to
the hammer 16 of bell 17. The arm 15 is adapted to be operated upon by the
spokes in wheel 13 for the purpose presently explained. The figure 18 is a stop on
support 14 the object of which is to give vibration to the hammer 16,

page_text: Secured to the lever of the switch 6 is an arm 19 whose office is to arrest the
movement of the hammer of the bell when the switch is pulled over from the receiver
contacts 7 and 8 to the transmitter contacts 10 and 11, and thus prevents the
ringing of the bell while the instrument is transmitting. The point of arm 19 is
preferably insulated as at 20.
The manner in which this feature of my invention operates is as follows: The
switch comprises a part of the apparatus under the control of a district subscriber,
and the normal condition of the switch is on the receiver contacts 7 and 8. The
plugging of the current at the central office energizes the receiver magnets and
releases the feed mechanism, thus starting the paper. As the feed mechanism revolves
the arm 15 is engaged by the spokes of wheel 13 with the effect of causing a regular
tap on the bell 17, due to the vibration of the hammer to which arm 15 is secured as
explained. By this means the subscriber is notified that a message is being received-
the bell continuing to ring while the message is being received. When the subscriber
wishes to reply he pulls his switch 6 over onto the transmitter contacts 10 and 11 and
in so doing the ringing of the bell is arrested by arm 19.
As will be noticed in Fig. 5 the earth contact 9 is placed near, preferably between,
the transmitting and receiving contacts, and besides it has a direct ground. The
function of this contact in the present system is to call up the Central Office. As
before stated, the switch 6 is always to be left on the receiver terminals 7 and 8 in
order that the apparatus may always be in readiness to receive a message. When a
subscriber wishes to call up the Central Office he pulls his switch over onto the
transmitter contacts 10 and 11 and in doing so necessarily switches across the earth
contact 9 which momentarily completes the circuit for dropping the annunciator on
the switch-board at the Central Office. The subscriber by the movement just
mentioned puts on his transmitter, and as one battery plug is always in the Office
connection to the Office instrument, the other plug immediately connects the person
who has called and the latter is enabled to write the number wanted. The moment
the Central Office makes a connection with that number, the paper moving mechanism
is released and the bell 17 on the apparatus of the subscriber called up begins to ring
and continues to ring during the time that the message is being received.
The feature of my invention now to be described is employed to effect the above
described operation. Referring to Fig. 3, the base of the box containing the
receiver instruments is indicated by 21, 22 designating the receiver magnets and
23 the cores thereof; the armatures of these magnets will be the same as shown in
the Patent No. 15577 above referred to. I combine with this part of my apparatus
the armatures 24 which are attached to arm 25 pivoted on the support 26, which has
at its free end a steel cap 27. The relative location of the armatures 24, with
reference to the receiving magnets 22, is such that they no wise interfere with the
movement of the armature connected to the stylus of the receiver. The figure 28
indicates a screw passing through a bracket on the support 26 whereby the distance
between the armatures 24 and the cores of the receiving magnets is regulated. An
arm 29 is connected to 25 and insulated therefrom and serves to make contact
between 30 and 31 which designate wires from the terminal 7 to the receiving
magnet 22. Figure 32 indicates a fly-wheel of the clock-work which moves the
paper, and which clock-work is provided with the wheel 13 co-operating with arm 15
for the purpose of ringing the bell while the message is being received.
The manner in which the apparatus shown in Figures I and 3-and which con-
stitute parts of the operating mechanism supplied to each subscriber-operates in the
system, is as follows: The switch 6 being at rest on the receiver terminals, when the
current is plugged on at the Central Office, in the manner above explained, the cores 23
of the receiver of person called up, become energized and instantly attract the
armatures 24 which raises that end of the arm 25 to which said armatures are
affixed, with the effect of releasing the clock-work fly 32 and at the same time
making connection between the contacts 30 and 31 through the medium of spring
arm 29. Upon the release of fly-wheel 32, in the manner stated, the clock-work
will be started causing the paper to be moved and the bell 17 to be rung. After

page_text: the message is written the Central Office takes out the plug, causing the armatures 24
to drop, breaking the connection between 30 and 31, and thus restoring the parts of
the apparatus of Fig. 3 to their normal condition with the clock mechanism at rest-
the operator at the Central Office being then enabled to replace the shutter of the
annunciator.
In Fig. 5 there is shown diagrammatically the method in which the apparatus
herein described is utilized in an exchange system. In this view the transmitter
carbons are indicated at 33-the contacts 30, 31, which are adapted to be made and
broken as above explained in describing Fig. 3, are also shown, as well as the
receiving magnets 22, the earth connection 9 and the various circuits employed. In
this view the letter S designates the switch board at the Central Office.
The mechanism shown in Fig. 3 is of course adapted to the "ticker system,"
where one instrument organized as shown in Patent No. 15577 herein mentioned,
writes on several instruments embodying merely clock-work and receivers. In
adapting the mechanism shown in Fig. 3 to such an organization I merely omit the
arm 29 and the contacts 30 and 31. When the current is turned on in such a
system, and the magnets are energized, the clock-work is released in the manner just
explained, and when the current is switched off by the instrument which does the
writing, the clock-work of the several instruments will stop. It will thus be seen
that the clock mechanism which starts and stops the paper when combined with a
receiver of the description indicated is automatically under perfect control. There
may also be combined with the "ticker system employing the feature just
referred to, the mechanism shown in Fig. 1 for signalling when a message is coming
or being received.
55
Instead of using the receiving magnets for operating the armature releasing the
feed,mechanism, I may use an additional magnet included in the same circuit.
Dated this 29th day of November 1887.
ALLISON BROS.,
Agents for the Applicant,

page_text: for Autographic Telegraph Systems.
I, HERBERT JOHN ALLISON, of the firm of Allison Brothers, of 52 Chancery Lane,
London, in the County of Middlesex, Patent Agents, do hereby declare the nature
of this invention, which has been communicated to me from abroad by The Writing
Telegraph Company (Incorporated), of the City and State of New York, United
States of America, 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 Autographic Telegraphs, and particularly to that class of
autographic telegraphs described in the Letters Patent of Great Britain granted to
me November 30th 1886, No. 15577, as a communication from the above named
The Writing Telegraph Company (Incorporated).
The invention is hereinafter described, and its features of novelty are pointed out
in the claims at the end of this specification.
The object of my invention is to render apparatus of the nature in question more
effective in operation, and to obtain increased facilities when such apparatus are
employed in a system of interchange between subscribers within a district.
Referring to the drawings accompanying the provisional specification of this
application and which form a part of this description, like features are indicated by
like figures of reference in the several views, Figure 1 being a side elevation of a
switch showing connections and the method for arresting and releasing the bell.
Figure 2 is a front elevation of the apparatus shown in Figure 1. Figure 3 is a
side elevation of the receiving magnets showing the method by which certain
features of my improvements are combined therewith. Figure 4 is a top plan view
of Figure 3, and Figure is a diagram illustrating the utilization of my improve-
ments in a District system.
In the drawings 6 indicates the switch, 7 and 8 the switch contacts for the receiver,
9 the earth contact, and 10 and 11 the transmitter contacts. 12 indicates a clock-work
frame and 13 a wheel of the clock-work. 14 is a support secured to the clock-work
frame and having pivoted thereto an arm 15 which arm is attached to the hammer 16
of bell 17. The arın 15 is adapted to be operated upon by the spokes in wheel 13
for the purpose presently explained. The figure 18 is a stop on support 14 the
object of which is to give vibration to the hammer 16.
Secured to the lever of the switch 6 is an arm 19 whose office is to arrest the
movement of the hammer of the bell when the switch is pulled over from the receiver
contacts 7 and 8 to the transmitter contacts 10 and 11, and thus prevents the ringing
of the bell while the instrument is transmitting. The point of arm 19 is preferably
insulated as at 20.
The manner in which this feature of my invention operates is as follows: The
switch comprises a part of the apparatus under the control of a district subscriber, and

page_text: the normal condition of the switch is on the receiver contacts 7 and 8. The
plugging of the current at the central office energizes the receiver magnets and
releases the feed mechanism, thus starting the paper. As the feed mechanism
revolves the arm 15 is engaged by the spokes of wheel 13, with the effect of causing
a regular tap on the bell 17, due to the vibration of the hammer to which arm 15
is secured as explained. By this means the subscriber is notified that a message
is being received the bell continuing to ring while the message is being received.
When the subscriber wishes to reply he pulls his switch 6 over on to the trans-
mitter contacts 10 and 11 and in so doing the ringing of the bell is arrested by
arm 19.
When a
As will be noticed in Fig. 5 the earth contact 9 is placed near, preferably between,
the transmitting and receiving contacts, and besides it has a direct ground. The
function of this contact in the present system is to call up the Central Office. As
before stated, the switch 6 is always to be left on the receiver terminals 7 and 8 in
order that the apparatus may always be in readiness to receive a message.
subscriber wishes to call up the Central Office he pulls his switch over on to the
transmitter contacts 10 and 11 and in doing so necessarily switches across the earth
contact 9 which momentarily completes the circuit for dropping the annunciator on
the switch-board at the Central Office. The subscriber by the movement just
mentioned puts on his transmitter, and as one battery plug is always in the Office
connection to the Office instrument, the other plug immediately connects the
person who has called, and the latter is enabled to write the number wanted. The
moment the Central Office makes a connection with that number, the paper moving
mechanism is released and the bell 17 on the apparatus of the subscriber called up
begins to ring and continues to ring during the time that the message being
received.
The feature of my invention now to be described is employed to effect the above
described operation. Referring to Fig. 3, the base of the box containing the receiving
instruments is indicated by 21, 22 designating the receiver magnets and 23 the cores
thereof; the armatures of these magnets will be the same as shown in the
Patent No. 15577 above referred to. 'I combine with this part of my apparatus
the armatures 24 which are attached to arm 25 pivoted on the support 26, which has
at its free end a steel cap 27. The relative location of the armatures 24, with
reference to the receiving magnets 22, is such that they no wise interfere with the
movement of the armature connected to the stylus of the receiver. The figure 28
indicates a screw passing through a bracket on the support 26 whereby the distance
between the armatures 24 and the cores of the receiving magnets is regulated.
arm 29 is connected to 25 and insulated therefrom, and serves to make contact
between 30 and 31, which designate wires from the terminal 7 to the receiving
magnet 22. Figure 32 indicates a fly-wheel of the clock-work which moves the
paper, and which clock-work is provided with the wheel 13 co-operating with arm 15
for the purpose of ringing the bell while the message is being received.
An
The manner in which the apparatus shown in Figures 1 and 3-and which constitute
parts of the operating mechanism supplied to each subscriber-operates in the system,
is as follows: The switch 6 being at rest on the receiver terminals, when the current
is plugged on at the Central Office, in the manner above explained, the cores 23 of
the receiver of the person called up, become energized and instantly attract the
armatures 24, which raises that end of the arm 25 to which said armatures are affixed,
with the effect of releasing the clock-work fly 32 and at the same time making
connection between the contacts 30 and 31 through the medium of spring arm 29.
Upon the release of fly-wheel 32, in the manner stated, the clock-work will be
started, causing the paper to be moved and the bell 17 to be rung. After the message
is written the Central Office takes out the plug, causing the armatures 24 to drop,
breaking the connection between 30 and 31, and thus restoring the parts of the
apparatus of Fig. 3 to their normal condition with the clock mechanism at rest-
the operator at the Central Office being then enabled to replace the shutter of the
annunciator..

page_text: In Fig. 5 there is shown diagrammatically the method in which the apparatus
herein described is utilized in an exchange system. In this view the transmitter
carbons are indicated at 33-the contacts 30, 31, which are adapted to be made and
broken as above explained in describing Fig. 3, are also shown, as well as the
receiving magnets 22, the earth connection 9 and the various circuits employed. In
this view the letter S designates the switch board at the Central Office.
The mechanism shown in Fig. 3 is of course adapted to the "ticker system," where
one instrument organized as shown in Patent No. 15577 herein mentioned, writes on
several instruments embodying merely clock-work and receivers. In adapting the
mechanism shown in Fig. 3 to such an organization I merely omit the arm 29 and
the contacts 30 and 31. When the current is turned on in such a system, and the
magnets are energized, the clock-work is released in the manner just explained, and
when the current is switched off by the instrument which does the writing, the clock-
work of the several instruments will stop. It will thus be seen that the clock
mechanism which starts and stops the paper when combined with a receiver of the
description indicated is automatically under perfect control. There may also be
combined with the "ticker system" employing the feature just referred to, the
mechanism shown in Fig. 1 for signalling when a message is coming or being
received.
Instead of using the receiving magnets for operating the armature releasing the
feed mechanism, I may use an additional magnet included in the same circuit.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, I declare that what
I claim is
1. In an Autographic Telegraph Exchange System, the combination of a switch,
with receiver, earth, and transmitter connections, the said earth connection arranged
near the others, whereby in turning the switch from receiver to transmitter terminals
the annunciator at the Central Office will be caused to drop, substantially as
set forth.
2. In an Autographic Telegraph Exchange System, the combination of a switch,
with receiver, earth, and transmitter connections, the said earth connection arranged
near the others and having a direct ground, substantially as set forth.
3. In an Autographic Telegraph the combination with a paper feed-mechanism, of
a bell and a bell hammer operated by said paper feed-mechanism, substantially as
described.
4. In an Autographic Telegraph the combination with a paper feed-mechanism
and receiver magnets, of an armature operated by said magnets and co-operating
with the paper feed-inechanism, a bell and a bell hammer, whereby signals are given
when the message is being received, substantially as described.
5. The combination with the receiving magnets, a paper feed-mechanism, and an
arm arranged to be acted upon by said mechanism to vibrate a bell hammer, of a
switch whose lever is provided with a projection arranged to arrest the tapping
of the bell when the switch is moved on to the transmitter connections, substantially
as set forth.
6. In an Autographic Telegraph the combination with a paper feed-mechanism, of
an electro-magnet, and an armature co-operating with said electro-magnet and paper
feed-mechanism, whereby when the magnet is energized the feed-mechanism is started
and when the circuit is broken the said mechanism is stopped, substantially as
described.
7. In an Autographic Telegraph, the combination with a paper feed-mechanism of
the receiver electro-magnets, and an armature co-operating with said electro-magnets
and paper feed-mechanism, whereby when the magnets are energized the feed-
mechanism is started and when the circuit is broken the said mechanism is stopped,
substantially as described.
8. In an Autographic Telegraph the combination with a paper feed-mechanism, of
an electro-magnet, an armature provided with a circuit closer and co-operating with

page_text: said electro-magnet and paper feed-mechanism, and contacts closed by said circuit
closer for closing the circuit through the receiver, substantially as described.
9. In an Autographic Telegraph the combination with an electro-magnet and its
armature provided with circuit closer, of contacts closed by said circuit closer for
closing the circuit through the receiver, substantially as described.
10. In an Autographic Telegraph the combination with the communicating magnets
and a feed-mechanism for moving the paper, of an arinature arranged to be affected
by said magnets when energized, and secured to a pivoted arm which co-operates
with the said paper feed-mechanism, substantially as set forth.
11. In an Autographic Telegraph, the combination with a switch and a receiver
and transmitter, of an electro-magnet suitably arranged within the circuit, and an
armature pivoted in suitable relation to said magnet upon an arm arranged to make
and break the circuit when the magnets are energized, substantially as set forth.
12. The switch provided with an arm as 19 in combination with a feed-mechanisın
adapted to move the paper, a bell and hammer, the latter provided with a pivoted
arm which co-operates with a wheel of said feed-mechanism, substantially as set
forth.
13. The frame 12 provided with wheel 13 and support 14, in combination with a
bell and hammer, the latter having an arm pivoted in said support, substantially as
set forth.
14. The electro-magnets 22, and fly-wheel 32 of feed-mechanism, combined with
support 26, arm 25 and armatures 24, substantially as set forth.
15. The electro-magnets 22, support 26, pivoted arm 25, armatures 24, and
adjusting device 28, all in combination, substantially as set forth.
16. The electro-magnets 22, support 26, arm 25, and armatures 24, in combination
with arm 29 and connections 30 and 31, substantially as set forth.
17. In an Autographic Telegraph Exchange System, the combination of a switch
with receiver, earth, and transmitter connections, the said earth connection arranged
near the others, a paper feed-mechanism, a bell, a hammer operated by said feed-
mechanism, an electro-magnet, an armature co-operating with said feed-mechanism
and provided with a circuit closer, and contact points closed thereby for closing the
circuit through the receiver, substantially as set forth.
Dated this 29th day of August 1888.