Improvements in Printing Telegraphs.
Year: 1892

page_text: Date of Application, 28th June, 1892-Accepted, 30th July, 1892
COMPLETE SPECIFICATION.
Improvements in Printing Telegraphs.
I, SAMUEL RUSH LINVILLE, a citizen of the United States, residing at
No. 3610 Walnut Street, West Philadelphia, in the County of Philadelphia, and
State of Pennsylvania, Electrician, do hereby declare the nature of my invention
for IMPROVEMENTS IN PRINTING TELEGRAPHS and in what manner the same
is to be performed to be particularly described and ascertained in and by the
following statements :—
My present invention is applicable in whole or in part to a single or double line
system of printing telegraphy that is operated by sources of electric energy and
transmitters included in a single or double line and either having the sources of
electric energy located at the transmitters, or having the sources of electric energy
and pole changing alternating and extra battery devices located at central or
terminal stations whether the type-wheels of receivers are arrested with a closed
or open line circuit.
The principal object of my present invention is to provide simple, durable and
efficient means for enabling an operator at any transmitting instrument connected
in line with other transmitters and receivers to select one or more of the receivers
to the exclusion of the others for receiving and recording a message, whereby
secrecy in the transmission of messages is secured.
My present invention stated in general terms comprises a telegraph line, a series
of receiving instruments provided respectively with type-wheel shafts adapted to
include electrical devices responding to abnormal currents and adapted to operate
individualizing cut-out mechanism and one or more transmitting instruments
provided with apparatus for electrically controlling the type-wheels and trans-
initting abnormal currents to actuate the electric devices and individualizing cut-out
mechanism of the receivers to include thereby the desired receiving instrument or
instruments in line.
My invention may be carried into effect by short-circuiting the electro-magnets
which directly control the rotation of the type-wheels or by interrupting the local
circuits which control the type-wheels of any or all the receivers included in a line
by means of individualizing cut-out mechanism actuated either by electro-
magnets in local or line battery circuits closed through said electro-magnets by
relays or electro-magnets responding only to abnormal currents in said line, so
that an operator at any transmitter is enabled not only to short circuit without
interrupting the line, the electro-magnetic devices controlling the type-wheels of
any receivers which he requires to cut out, but also to restore said circuits,
when desired.
The nature and general characteristic features of my invention will be more
fully understood from the following description taken in connection with the
accompanying drawings forming part hereof; and in which
Figure 1, is a view of a central or terminal station and a combined receiving and
transmitting instrument, showing alternating and arresting devices located at the'
central or terminal station, and also showing the printing and transmitting devices
and circuit switches and individualizing devices located at the combined transmitters
and receivers and also illustrating diagrammatically all the circuits.
Fig. 2, is a view of a combined transmitting and receiving instrument, showing
the batteries and transmitting devices for alternating and increasing the strength
of the current in the line, a neutral relay in said line, printing devices actuated by
a local battery, type-wheels actuated by a polarized armature responding to
alternating currents in the line, individualizing devices and circuits.

page_text: Fig. 3, is a perspective view of an individualizing shaft provided with a locking
device embodying features of my invention and adapted to lock the type-wheel or
wheels of a receiving instrument at the cut-out position.
Fig. 4, is a view of a transmitting and receiving instrument showing transmitting
devices, a neutral and a polarized relay in line, an escapement magnet having the
polarized armature thereof actuated by magnets energized by alternating currents
from split battery circuits controlled by the polarized relay and printing and
cut-out magnets energized by a local battery; and also showing the individualizing
apparatus and circuits.
Fig. 5, is a view of a transmitting and receiving instrument showing transmitting
devices and a polarized relay, printing and cut-out magnets in the line circuit, an
escapement magnet energized by a local battery and a cut-out magnet responding
to strong currents in the line.
Fig. 6, is a view of a transmitting and receiving instrument showing trans-
mitting devices and line batteries, escapement magnets, printing mechanism
and switching devices for changing the line circuit from the printing to the
cut-out magnet which latter responds only to strong currents in the line,
individualizing apparatus and the cut-out circuits; and also illustrating in dotted
lines a neutral relay which may be disposed in the line to operate the cut-out
magnet by a local battery; and
Fig. 7, is a view of a transmitting and receiving instrument showing alternating
devices, a circuit breaking key, a neutral relay and a pole changer for sending
abnormally strong pulsations of the required polarity from the entire battery to
actuate the neutral relay.
For the sake of a description of my present invention reference will be made to
a system of printing telegraphy in which the batteries, alternating, arresting and
other devices and the combined transmitter and receiver circuits shown in Fig. 1
are substantially the same as are described in the English Letters Patent No. 6847,
dated April 21, 1891, and granted to Samuel Rush Linville and Louis Frederick
Hettmansperger and the circuit switches, individualizing apparatus and short
circuits for rendering the receiver inoperative will be described in connection with
such a system of printing telegraphy, but it must be borne in mind that my invention
is applicable to other types or systems of telegraphy.
In the drawings a, is a shaft supported in bearings a' and adapted to be rotated
step by step by means of a ratchet-wheel a², mounted on said shaft. a³, is a pawl
provided with a stop-arm a and pivotally connected with a lever a, hung on a
trunnion. This lever a, carries an armature a, appertaining to the electro-
magnet A, and an arm a', to which a retracting spring a³, is attached. When the
electro-magnet A is energized, the armature a, is actuated and causes the pawl a³,
to rotate the ratchet-wheel a³, one step. When the circuit through the electro-
magnet A, is broken, the armature 2, will be retracted by the spring a, and
the pawl a³, being held in contact with the ratchet-wheel a², by the spring a³,
engages the next tooth of the ratchet-wheel a³, it being understood that the
detent a, prevents retrograde movement of the ratchet-wheel a². On the shaft a,
is rigidly mounted a disc b, and a hub of conducting material insulated from said
shaft. The periphery of each of the discs, appertaining to the respective
receivers in line is notched at a zero point b², corresponding with one of the teeth
of the respective ratchet-wheels a², and also at an additional point 3, corresponding
with one of the successive teeth of the respective ratchet-wheels a. For example,
all the ratchet-wheels have as many teeth as there are receiving stations, and the
notch 3, is in alignment with the first succeeding tooth of the ratchet-wheel in
instrument No. I and is in alignment with the second succeeding tooth in
instrument No. 2 and so on in the succeeding instruments. Assuming for the sake
of a further description that all the circuit preserving springs 4, at all the
instruments are in engagement with the notches 2, and that all the ratchet-
wheels a², are rotated synchronously tooth by tooth, then the receiver No. 1, is
included in line when all the ratchet-wheels a, have advanced one step, because

page_text: the notch, is shifted into position for permitting the projection on the spring,
to drop into the notch b³, on the disc b, thus breaking circuit with the disc,
and permitting the circuit spring 4, to contact with the circuit spring ; in the
meanwhile the other receivers are cut out of line, because the projections on the
springs, ride upon the discs, and thus short circuit the line through the hubs ',
and their accessories. In the individualizing apparatus at station No. 2, the
projection on the spring 4, drops into the second notch 63, in the disc b, when all
the ratchet-wheels a², have advanced two steps because the notch 3, will then have
been brought beneath the projection, and at the succeeding stations the projections
of the respective springs will drop into the notches 63, whenever the ratchet-
wheels have advanced a number of steps equal to the numbers of the respective
stations.
It will hereinafter be shown that any or all receivers in line can be short-
circuited through the instrumentality of the shaft a, by causing abnormal
pulsations in the line and closing and breaking the circuit through the electro-
magnets A.
Although the terminal station circuits and devices illustrated in Fig. 1, are well
known and are fully described in the Patent hereinbefore mentioned, still a brief
description of the same will now be given.
The pulley c, is frictionally connected with the shaft c¹, on which is mounted an
escapement wheel c², an alternator D, and a unison spiral e. The pulley c, is
constantly turned by any suitable contrivance or source of power. The battery Q
is closed through the pole-changer F, and alternator D, one electrode of the
battery being connected through the coils of the relay G. The battery Q', is
adapted to be closed in parallel with the battery Q. The electro-magnet F, of the
pole-changer is energized by a local battery, when the armature lever, of the
relay G, contacts with its front stop g', and when it contacts with its back stop g²,
this circuit is broken and the line battery Q', is connected with the pole-changer F,
by closing the circuit of the positive electrode at the contacts on the lever g, and
spring of the relay G. From the pole-changer F, the electrodes are connected
to the springs bearing on the alternator D, and thence one electrode goes to earth
and the other is directed to line through the electro-magnets of the polarized
relay H, thence to the circuit preserving spring, of the receiving instruments,
which spring must be in the position shown clear of contact with the disc b, thence
through spring, thence through the electro-magnets of the polarized relay I, at
the receiver and through the magnets of relays J and K, to the circuit spring 1,
the insulated hub, on the type-wheel shaft 2, arm and brush 3, to line contacts
of the sunflower 1, key arm m, of the keys M, upper contact m', and to earth or
to line and through the other receivers to earth.
The escapement electro-magnets I', energized by the circuit of a local battery ',
closed through contacts of the polarized relay I, control the type-wheel of the
receiver. The paper carriage and printing pallet are actuated by the electro-
magnet N, included in the circuit of the local battery q², closed at the back contact
of the relay J, when the line circuit is broken by any of the keys corresponding to
the contacts on the sunflower, in the row of keys M. A key M', short-circuits
the sunflower by closing the line at contact m², through the resistance m³, to earth
or to line through other receivers and then to earth. The relay K, is adjusted to
respond only to currents in the line stronger than the currents which actuate the
relay J. The lever n, of the electro-magnet N, is mechanically connected with
the unison latch ', of the receiver, and also with the unison latch o, of the
individualizing mechanism, so that these latches will be released from their
respective unison spirals each time that the electro-magnet N, is energized. The
insulated circuit springs s, sands, are so arranged with reference to the type-
wheel shaft 2, and the arm s³, insulated from said shaft, that the arm s³, collides
with the springs, during one step of the type-wheel, at a predetermined cut-out
position of said type-wheel, and at this position the springs, will contact with the
springs, and cause it to break contact with the spring s¹, thereby breaking the

page_text: circuit of the local battery 92, through the electro-magnet N, and closing the circuit
through the electro-magnet A.
When the line circuit is closed through all the combined transmitters and
receivers as is normally the case, the lever of relay G, at the terminal station will
remain in contact with its front stop gl, and the armature, will be held in contact
with the electro-magnets of the pole-changer F. Under such circumstances the
alternator D, will run continuously in a well known manner, the escapement lever c³
and pallets being constantly vibrated by the electro-magnets C, responding
alternately to the currents of the battery 73, closed by the contacts of the polarized
relay H, the said relay being actuated through successive reversals' of current by
the alternator D, until the alternator and the type-wheels of all the receivers in
line are arrested in unison. When a key in the row of keys M, at any receiver is
depressed, the line circuit is broken and the armatures and, of the relay G, and
pole-changer F, fall away. The line batteries Q and Q, are now in parallel, as
has been hereinabove described, and the circuit of the battery ', is closed by the
contact, on the pole-changer lever, and contact f¹, through the unison
electro-magnet P. At the same time the lever k, of the relay K, at the receivers
closes the circuit of the battery 2, through the magnet N, thereby simultaneously
releasing the unison latches of the alternator and of all the receivers in line.
The line battery Q, is alone in circuit with the relay G, at the terminal station.
The resistance m³, between the key M', and earth or line, must be such that the
current in line from the battery Q, will not cause the electro-magnets of the
relay G, at the terminal station to overcome the resiliency of the adjusting spring g³,
of said relay. The line circuits stand reversed through the pole-changer F, when
its armature, is retracted in consequence of a break in the line circuit at one of
the rows of keys M, and when the line is closed by the key M³, through a
resistance m³, by depressing the key M', so as to short circuit the sunflower, and the
break in the line at the row of keys M, the current of the combined batteries Q
and Q', and of the same polarity as last actuated the polarized relays at the terminal
station and at the receivers, will go to line without actuating said relays, or the
neutral relay G, at the terminal station. The operation of the individualizing cut-
out mechanism in connection with an automatic system such as described, will be
clearly understood from the following description. However, there must be several
receivers connected in line and provided with circuits and devices substantially
such as are illustrated in Fig. 1.
An operator say at receiver No. 1, wishes to communicate with receiver No. 4
and to short-circuit the operative magnets of all the other receivers. The operator
releases the unison latches and presses a key in the row of keys M, called a cut-out
key, and adapted to arrest all the type-wheels at the cut-out position, whereupon
the arms, on the type-wheel shafts 2, of all the receivers will collide with the
springs, closing the local circuits of the local batteries 12, at the receivers
through the electro-magnets A, and breaking said circuits through the electro-
magnets N. The operator then holding down the cut-out key to maintain the break
in the line through the sunflower of his receiver, causes a sufficient number of
abnormal makes and breaks in line by closing and breaking the short circuit
through the key M', and resistance m³, to rotate all the individualizing shafts a, and
devices thereon to the unison position. At this position all the respective discs b,
have notches, as has been hereinabove explained, and the line circuits are all in
normal connection through the electro-magnets directly or indirectly controlling
the type-wheels of the respective receivers in line. It may be remarked that in
such position the unison latches o, lock the shafts a, and it is necessary to release
these latches o, before the shafts may again be rotated. The keys M and M', that
were previously operated are released and all the type-wheels automatically run to
unison with the alternator and are locked in such position by their unison latches n¹
and o. During the operation the circuits of the local batteries q², are restored to
the electro-magnets N, by the movement of the arins, on the type-wheel shafts 12,
to a position out of contact with the springs. A key (not shown,) corresponding

page_text: to the unison position is then pressed, so that the line is interrupted and the unison
latches e, n and o, of the alternator and of all the receivers in line are again
released as previously described, in order to permit of the rotation of the shafts a,
and 2. The operator next arrests all the type-wheels at the cut-out position by
holding down the cut-out key. In this position the individualizing electro-
magnets A, are again included in the circuit of the batteries 2, at all the receivers.
The operator then causes all the shafts a, to advance four steps by maintaining the
break in the line through the sunflower by holding down the cut-out key, and at the
same time sending strong currents over the line to actuate the relay K. by making
and breaking the line four times through the short circuit key M, and resistance m³.
In this position of the shaft a, the spring 6, will enter the notch, and clear the
disc b, only at receiver No. 4, and at all others the springs 6, will ride in contact
with the metallic discs b, thereby cutting such instruments out of line. At
receiver No. 4 the polar relay I, will be in the line circuit through the circuit.
preserving springs and 6, and the main line as shown in Fig. 1, while at all the
other receivers the contact between the springs 64 and 15, is interrupted, because
the springs, ride on and contact with the discs b, and thus the line is connected
to the springs, through the hubs, whereby the polarized electro-magnets I, are
short-circuited.
The operator may now move his individualizing shaft to the Number I position,
or employ a switch to restore the circuit through his polarized relay magnets, in a
manner well known to electricians, and receivers Nos. 1 and 4, will then be in
operative communication with each other, to the exclusion of all the other
receivers in line. If the discs b, at two or more receivers have notches at corre-
sponding radial positions, all such receivers to the exclusion of the others may be
brought into operative connection with each other.
I do not limit my invention to the specific circuits and devices hereinbefore
described, as it is obvious that the resistance m³, in the line short circuit may be
varied or omitted. That the form of the circuit controlling devices is not material
and that a cylinder with contacts and insulations and springs bearing thereon, or
numerous other well known devices operating to transfer the line current from one
circuit to another may be substituted for the disc b, and springs, and 0.
Moreover, the polarized relay I, and local battery 72, at the receivers, may be
omitted, in which case the line circuit energizes the electro-magnets controlling the
type-wheels, and to cut-out a receiver it is of course necessary to short circuit
these magnets. A pulsator consisting of numbered contacts and insulations in
dial form, operating in connection with a pivoted contact arm adapted to sweep
over said contacts may be employed in lieu of the key M. A disc a", Fig. 3,
rigidly secured to the shaft a, placed in relation to the type-wheel shaft 12, as
shown and having a unison notch a and a notch a¹³, through which an arm a¹, on
the type-wheel shaft , may freely pass, may be employed. In this instance the
notch, is arranged to correspond in radial position with the hereinbefore
described notches 3, on the discs &, so that the discs a", operate to arrest the type-
wheel shafts of all the receivers in line at cut-out positions, and this result may
be accomplished either with or without the employment of the line short circuiting
devices by manipulating the keys in the manner hereinbefore explained. The
application of my invention to numerous well known systems of printing telegraphy
having transmitters only at central stations, or transmitters connected electrically
with receivers at all stations will be apparent to electricians skilled in the art; and
it may be remarked that it is immaterial whether the circuit switch 5, is controlled
by an arm on the type-wheel. shaft or by an arm moving synchronously
therewith.
The following adaptations will be briefly described. In Fig. 2, is shown a
combined transmitter and receiver provided with a type-wheel magnet I', included
in the line circuit and with a printing magnet N, included in the circuit of a local
battery . The alternating devices F, of these instruments, are connected to

page_text: the electrodes of a part only of a line battery Q, and operate when vibrated to
transmit alternating currents through the relay J, and the type-wheel magnets I',
to actuate and set the type-wheels. The circuit preserving key R, when
depressed operates to include the entire battery Q, in the line circuit, the polarity
of the current to line being determined by the position in which the alternating
devices F, are arrested. When the type-wheel L, is arrested at the cut-out
position, the arms, pressing the circuit springs, out of contact with the spring s¹,
transfers the circuit of the battery 12, from the magnet N, to the magnet A, and
said circuit may then be closed through the front contact j', of the relay J, by
sending strong pulsations to line by alternately depressing and releasing the
circuit preserving key R. By this means the individualizing devices shown in
Fig. 2, and hereinbefore described with reference to Fig. 1, at all the receivers in
line, may be turned to unison position. The unison latches 0, mechanically
connected to the printing lever n, are released by the printing magnet N, in the
manner hereinabove described with reference to Fig. 1, and the discs b, are set in
position for breaking contact of the spring, with the spring, and making
contact of said spring &', with the disc b, in the manner above described, whereby
the type-wheel magnets I', are short circuited by a line closed through a
resistance mt.
In Fig. 4, the receiving and the transmitting devices are similar to those
illustrated in Fig. 2, but the line circuit instead of passing through the coils of the
type-wheel electro-magnets I, is connected to the coils of the electro-magnet of a
polarized relay I, and the type-wheel electro-magnets I', are energized by the
alternating currents of a local battery, closed by the contacts of said relay. In
this case the individualizing apparatus operates to short circuit the polarized
relay I, by interrupting the line between the springs and 6, and closing it
around said relay through the disc b, hub, spring and resistance m', thereby
arresting the operation of the type-wheel electro-magnets 1'.
It is apparent that
the line between the tongue of the polarized relay I, and the type-wheel electro-
magnets I', may be interrupted by the individualizing springs, and 6, or the
local battery, may be short circuited in any well known manner by the devices
employed to short circuit the polarized relay instead of short circuiting said relay,
as shown.
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In the circuits and apparatus illustrated in Fig. 5, the transmitting devices are
similar to those illustrated in Figs. 2 and 4, and hereinbefore described. The
neutral relay responding only to strong currents in line is omitted and the printing
electro-magnet N, and the individualizing magnet A, are in the line circuit and
the latter must be adjusted to respond only to abnormally strong currents from the
entire battery Q. The switch or circuit preserving springs, actuated by an
arms, on the type-wheel shaft ², operates to interrupt the line circuit through
the printing electro-magnet N, and to close said circuit through the individualizing
electro-magnet A. The polarized relay I, may then be short-circuited through
the spring, disc b, spring 66, and resistance m', by rotating the individualizing
devices by means of strong currents as hereinbefore described.
In the circuits and apparatus illustrated in Fig. 6, the polarized relay is
omitted, the type-wheel magnets I', are included in the line circuit, and the
printing and individualizing electro-magnets N and A, are adapted to be included
in said circuit. The printing electro-magnet N, responding to prolonged pulsations
in the line circuit and the individualizing electro-magnet A responding to
abnormally strong pulsations. It being understood that short weak pulsations
operate the type-wheel electro-magnets I'. The individualizing apparatus is
adapted to short circuit the type-wheel electro-magnets when the type-wheels are
arrested at the cut-out position as hereinbefore fully described. The dotted lines
in Fig. 6 indicate a relay J, responding to strong pulsations and adapted to be
included in the line, if desired, in which case the individualizing electro-magnet A,
may be energized by the local battery 13, closed through the front stop j, of said

page_text: relay. The line circuit could in such case be permanently connected through the
coils of the printing electro-magnet N, and the circuit switch s, and circuit
connections therefrom to the electro-magnet A, might then be omitted.
In Fig. 7, the transmitting devices are adapted to send alternating currents of a
portion of the battery Q, to line and in case the transmitter runs automatically in
a well known manner, by sending alternating currents through escapement
magnets 1, controlling the movement of a power impelled shaft, and the
transmitter is arrested through the interruption of the line circuit by the breaking
of the line as by a key . However, the devices herein before described for
sending strong pulsations must be modified, for example in the following manner.
A current of the same polarity as last energized the polarized relays I, or
escapement electro-magnets I', must be sent, when the line is closed around the
break at the key u, otherwise the transmitter would start and the type-wheels of
the receivers would be moved. To obviate this difficulty, a pole-changer F, or
equivalent device, must be employed to send abnormally strong pulsations of the
desired polarity from the entire battery Q, to actuate the neutral relay J. The
operation of short circuiting the polarized relay I, at the receiver when the type-
wheel is arrested at the cut-out position has been hereinbefore described with
reference to similar circuits in Fig. 4.
My invention is applicable to systems of telegraphy operating by direct
currents of the same polarity, since instead of a neutral relay responding only to
strong currents, a polarized relay arranged to contact on one point by sending
reversed normal currents may be included in line in a well known manner operating
to close and break the circuit through the individualizing electro-magnets. I desire
it to be understood that my invention comprises the generic feature of short
circuiting or rendering inoperative the devices controlling the type-wheels of
receivers by means of currents differing in strength from the currents employed in
operating the type-wheels and of restoring said circuits to normal condition when
desired, and hence I do not limit myself to the use of the specific means, circuits
and systems described, because it is obvious that my invention is of general appli-
cation to all systems of printing telegraphy.
Having thus particularly described and ascertained the nature and objects of my
invention, and in what manner the same is to be performed I declare that what I
claim is :-
1. An individualizing cut-out system for printing telegraphy, comprising a line,
source of electric energy, means for transmitting normal and abnormal electric
impulses through said line, a series of receiving instruments included in said line
and having type-wheels and shafts controlled by normal currents, circuit-switching
devices controlled by said shafts and individualizing switches actuated by electro-
magnets responding only to abnormal line currents to render inoperative by normal
currents any and all receivers included in said line.
2. An individualizing cut-out system for printing telegraphs, comprising a line,
means for transmitting normal and abnormal electrical currents, a series of receiving
instruments included in said line and each provided with a type-wheel shaft
operating to cut-out magnets and include individualizing line cut-out mechanism
and with electrical devices responding to abnormal line currents and operating the
individualizing cut-out devices to include and exclude the required instrument or
instruments in or from the line.
3. In an individualizing cut-out system for printing telegraphs, a line and
source of energy, means for transmitting normal and abnormal currents over said
line, receivers having type-wheels and shafts therefor included in said line and
adapted to be positioned only in response to normal currents over said line,
switching-devices in receivers operative at determinate cut-out positions,
individualizing switching-devices actuated by magnets in circuits controlled only
by magnets responding to abnormal line currents operating to exclude or to include
the circuit controlling any or all of the type-wheels of receivers in line.

page_text: 4. In an individualizing cut-out system for printing telegraphs, a line and source
of energy, telegraphic receivers included in said line, circuits and appliances at
receivers for positioning type-wheels and making impressions, local circuit
switching devices operative at determinate positions of said type-wheels, indi-
vidualizing electro-magnets and mechanism, substantially as described, magnets in
said line responding only to stronger than the normal operating currents to
control said individualizing mechanism, whereby said type-wheels are rendered
inoperative except in response to abnormal currents over said line.
5. In an individualizing cut-out system for printing telegraphs, a series of
telegraphic receivers having type-wheels, line relays and local circuits for
positioning said type-wheels and making impressions therefrom, switching devices
and local circuits operative at determinate positions of said type-wheels, indi-
vidualizing magnets and devices controlled by said local circuits closed through
relays in a line circuit, said relays responding only to strong currents sent over said
line operating to short circuit through a resistance the relays controlling said type-
wheels.
6. In an individualizing cut-out system for printing telegraphs, sources of
electric energy, a line, circuits, transmitters and receivers in said line, type-wheels
in receivers, type-wheel shafts adapted to actuate switching devices at determinate
positions, individualizing magnets and electrical and mechanical devices actuated
thereby, said magnets responding only to abnormally strong currents at determinate
positions of said type-wheels and operating to arrest at a cut-out position any or
all of the said type-wheels and to prevent their movement by normal operating
currents.
7. An individualizing cut-out system for printing telegraphs comprising a line,
means for alternating and varying the strength of the current in the line,
transmitter included in the line and provided with keys for breaking and closing
the line, receivers included in the line and provided with shafts carrying type-
wheels, electro-magnetic devices responding to currents in the line and controlling
the type-wheel shafts, printing devices, local battery circuits, local circuit switches
controlled by the type-wheel shafts, individualizing circuit switching devices
actuated by an electro-magnet and a relay responding to abnormal currents in the
line and closing said local circuit at its front stop through the individualizing
magnets to permit of the operation of the individualizing switch.
8. An individualizing cut-out system for printing telegraphs, comprising sources
of electric energy and electrical and mechanical devices located at a station for
alternating and varying the strength of current in a single line, transmitters
included in said line and provided with keys for breaking and closing said line,
receivers included in said line and provided with shafts carrying type-wheels,
electro-magnetic devices responding to currents in said line and controlling said
type-wheel shafts, local battery circuits, mechanical circuit switching devices
controlled by said shafts and adapted to control said local battery circuit, indi-
vidualizing circuit switching devices, a shaft having contacts actuated by an
individualizing electro-magnet, a relay responding to intermittent currents in said
line and closing said local circuit at its front stop through the individualizing
magnets during the arrest of the type-wheels at a cut-out position to permit of the
rotation of the individualizing shaft and of actuation of the individualizing circuit
switch operating to cut-out of circuit the electro-magnetic devices controlling the
type-wheels of any or all of the receivers included in said line.
9. An individualizing cut-out for printing telegraphs, comprising sources of
electric energy, a main line, transmitters included in said line and provided with
pole changers and with keys and devices for breaking, including and permitting of
abnormal currents in said line, receivers provided with power inopelled shafts
carrying type-wheels, unison devices, electro-magnetic devices responding to line
currents and controlling said shafts, local circuit changing switches actuated by said
shafts at a determinate position thereof, individualizing switches, shafts carrying
devices, for actuating said individualizing switches, electrical and mechanical

page_text: devices for releasing said unison devices, individualizing magnets in local circuits
controlled by said circuit changing switches, relays responding to abnormal inter-
mittent currents in said line to close said local battery circuits through the
individualizing magnets to effect the rotation of said individualizing shafts, thereby
actuating said individualizing switches in response to intermittent currents included
by keys at any transmitter in line.
10. An individualizing cut-out for printing telegraphs, comprising sources of
electric energy, a main line, transmitters included in said line and provided with
pole changers and with keys and devices for breaking, including and intermitting
abnormal currents in said line, receivers provided with power impelled type-wheel
shafts, unison devices, electro-magnetic devices responding to line currents and
controlling said shafts, local circuit changing switches actuated by said shafts,
individualizing switches provided with unison devices, electrical and mechanical
devices for releasing said unison devices, magnets in local circuits controlled by
said local circuit switches, and relays responding to abnormal currents in line to
control the operation of line switching devices.
11. In a cut-out for printing telegraphs, a main line, a source of electric energy,
transmitters provided with means for alternating, breaking, intermitting and
varying the strength of the current in said line, receivers having power impelled
type-wheel shafts, electrical devices actuated by line currents for controlling said
shafts, local battery circuits normally energizing printing magnets, meaus adapted
to short circuit the same and energize individualizing cut-out magnets, circuit
switches actuated by a cam on the type-wheel shaft at a determinate position thereof
for including the individualizing cut-out magnets in said local circuit, individualizing
switches, shafts, contacts and ratchets, a relay responding to intermittent strong
currents in line and closing said local circuits through the individualizing magnets
previously included in the local circuit by the operation of the local circuit switch
to actuate said individualizing shaft and switches to effect the inclusion and
exclusion of the electrical devices for controlling the type-wheel in and from the
line circuit.
12. In an individualizing cut-out for printing telegraphs, sources of electric
energy, a main line having devices included therein for alternating, breaking and
varying the current to receivers included in the line, type-wheel shafts, escapements
controlling said shafts, electro-magnets actuating the escapements, printing electro-
magnets and devices, local circuit switches actuated at a determinate position of
the type-wheel shafts, relays responding only to line currents stronger than the
currents actuating the escapement magnets, individualizing line switches located at
receivers and provided with unison devices and latches, means controlled by the
printing electro-magnets for releasing the unison latches, and local circuits closed
by said relays and controlling said line circuit switches.
13. In an individualizing cut-out for printing telegraphs, sources of electric
energy, a main line having devices included therein for alternating, breaking and
varying the current to receivers included in said line, power impelled shafts having
type-wheels and cams mounted thereon at receivers, escapements controlling
said shafts, electro-magnets actuating the escapements, printing electro-magnets
and devices, local circuit switches actuated at a determinate position by said cams,
relays in line responding to stronger currents than the currents actuating the
escapement magnets, individualizing circuit preserving switches located at receivers
and comprising shafts and ratchet-wheels, circuit contacts and interrupters and
unison devices mounted on said shafts, unison latches and electro-magnetic devices,
means for releasing said latches, local circuits normally closed through said printing
magnets and adapted to be closed through, the front contact of said relays to
energize the individualizing magnets for operating said contacts and shafts before
and after the latter have been rotated to unison and. released and to short circuit
and restore successively the circuit of the escapement electro-magnets in line.
14. In an individualizing cut-out for printing telegraphs, the combination with
sources of electric energy, a main line and devices for alternating, breaking and
B

page_text: varying the strength of the current, of pole changers, receivers included in said
line, power impelled shafts having cams and type-wheels mounted thereon, escape-
ments controlling said shafts, electro-magnets and devices actuating said escapeinents,
local batteries and circuits for said magnets, polarized relays in line adapted to
close said circuits, local printing batteries and circuits, circuit controlling switches
actuated by said cams at a determinate position of said type-wheels, relays in line
responding only to currents stronger than the currents normally actuating said
polarized relays, individualizing circuit preserving switches at receivers, shafts
therefor, ratchet wheels, circuit contacts and interrupters and unison devices mounted
thereon, unison latches, electro-magnetic devices, means for releasing said latches,
local circuits closed through the front contact of said relay when the type-wheels
stand at a determinate position and operating when said shafts are rotated to unison
said shafts, release said unison latches and to short circuit and to restore successively
the circuits of the polarized relay controlling the escapements of receivers.
15. In a printing telegraph system, a source of electric energy, a main line,
devices included therein for alternating and varying the strength of current,
electro-magnets in said main line controlling type-wheels and printing devices,
circuit preserving switches, type-wheel shafts actuating said switches at a
determinate position, electro-magnets included in a circuit closed by said switches
and responding to currents stronger than currents controlling the type-wheels,
individualizing cut-out switches and devices actuated by said magnets, responding
only to strong currents and operating, substantially as described, to short circuit
the electro-magnets controlling said type-wheels.
16. In a printing telegraph system, an individual cut-out switching device, a
source of electric energy, a main line type-wheel circuit, devices included therein
for alternating and increasing the strength of current, polarized relays in said line,
local batteries and circuits controlling type-wheels and printing devices, local
circuits closed by said polarized relay, circuit preserving switches, type-wheel
shafts actuating said switches at a determinate position of said shafts, electro-
magnets included in circuits closed by said switches and actuating said individual-
izing cut-out device, a relay in line responding only to abnormally strong currents,
means for vibrating said relay to make and break the circuit through the electro-
magnets operating the individualizing switches.
17. In a printing telegraph system, an individual cut-out switching device, a
source of electric energy, a main line type-wheel circuit, devices included therein
for alternating and increasing the strength of current, polarized relays included in
the line and closing local battery circuits through escapement electro-magnets,
local printing circuits, local circuit switches closing printing circuits and a relay
included in line. responding to strong currents.
18. The combination, in an individualizing cut-out apparatus, of a shaft, a unison
device, a unison latch, a ratchet wheel and a circuit contacting disc mounted on
said shaft, a circuit preserving switch actuated by said contacting disc and an
electro-magnet and its complemental devices for rotating said shaft.
19. The combination, in an individualizing cut-out'apparatus, of a cut-out shaft,
a unison device, a unison latch, a ratchet, a circuit contact disc, a notched disc on
the cut-out shaft, a type-wheel shaft provided with an arm engaging the notched
disc to lock the type-wheels, a circuit preserving switch actuated by said contact
disc and an electro-magnet and its complemental devices for operating the cut-out shaft.
20. In a printing telegraph, an individualizing device provided with means for
locking the type-wheels, a source of electric energy, a main line type-wheel circuit
devices included in the line for alternating and increasing the strength of the
current, polarized relays in said line, local batteries and circuits controlling type-
wheels and printing devices, local circuits closed by said polarized relay, local
circuit preserving switches, type-wheel shafts actuating said switches at a
determinate position of said shafts, electro-magnets included in circuits closed by
said switches and actuating said individualizing device to cause the same to lock
-the type-wheels and short circuit the magnets controlling said type-wheels.
:

page_text: 21. In an individualizing cut-out for printing telegraphs, the combination with
a source of electric energy and line, a circuit having means interposed therein for
alternating and varying the strength of current, of receivers having type-wheel
shafts, type-wheels and impression devices, polarized relays in the line circuit
controlling local circuits actuating said type-wheels, circuit switches operated by
said shafts, individualizing switches, magnets and devices adapted to operate said
switches and relays in line circuit responding to strong intermittent currents to
short circuit the polar relays controlling the type-wheel circuits of any or all
receivers in the line.
22. In an individualizing cut-out for printing telegraphs, the combination with a
source of electric energy and a line circuit provided with means for alternating and
varying the strength of current, of receivers included in said line and having type-
wheel shafts, type-wheels and means for setting and effecting impressions therefrom,
circuit-switches controlled by said shafts, individualizing switches and actuating
devices therefor, electro-magnets adapted to operate said switches and devices, and
relays in said line responding to strong intermittent currents to short circuit the
electro-magnets controlling the type-wheels of any or all receivers.
23. In an individualizing cut-out for printing telegraphs, a source of clectric
energy and line circuit, pole changers and means for alternating and varying the
strength of current and breaking the line circuit of receivers included therein, type-
wheel shaft, type-wheels, means for setting and effecting impressions therefrom, circuit
switches controlled by said shafts, individualizing switches and actuating devices
therefor, electro-magnets adapted to operate said switches and devices, and relays in
said line responding to strong intermittent currents to short circuit the electro-magnets
controlling the type-wheels of any or all receivers.
24. In an individualizing cut-out system, the combination with a source of
electric energy, a line circuit and means included therein for pulsating and varying
the strength and alternating the current, of receivers in circuit having type-wheel
shafts, type-wheels and magnetic devices for rotating and positioning said type-
wheels and individualizing devices operated by abnormal currents to short circuit
the magnetic devices controlling the type-wheels of any required instrument or
instruments.
25. In an individualizing cut-out system for printing telegraphs, a type-wheel
shaft provided with an arm, a shaft operating a switching device and a notched disc
on said shaft, said arm adapted to pass through the notch in said disc during the
operation of printing and to be arrested by said disc in the cut-out position of
said type-wheel shaft.
26. In an individualizing, cut-out system for printing telegraphs, a type-wheel
shaft provided with an arm, a shaft for operating a line preserving switch, and a
disc mounted on the switch operating shaft and provided with a recess for the
reception of said arm.
27. In an individualizing cut-out system embracing a receiver having a type-
wheel shaft, means for positioning the same, a shaft provided with a unison screw
and adapted to operate a circuit preserving switch, an electro-magnetic device and
its accessories actuating said shaft and responding to abnormal line currents, a disc
on said shaft provided with notches in alignment with the terminal of the unison
screw and a type-wheel shaft provided with an arm adapted to enter the recesses of
the disc operating to lock the type-wheel shaft at a determinate position.
28. In an individualizing cut-out system for printing telegraphs, comprising a
source of electric energy and line, a circuit having means interposed therein for
alternating and varying the strength of current, receivers having type-wheel shafts,
type-wheels and impression devices, polarized relays in the line, circuit controlling
local circuits actuating said type-wheels, circuit switches operated by said shafts
individualizing switches, magnets and devices adapted to operate said switches and
relays in the line. circuit responding to-strong--intermittent currents to short circuit
through a resistance the polarized relays controlling the type-wheel circuits of the
receiver or receivers in line.

page_text: :
29. In an individualizing cut-out for printing telegraphs, comprising a source of
electric energy and a line circuit provided with means for alternating and varying
the strength of current, receivers included in said line and having type-wheel shafts,
type-wheels and means for setting and effecting impressions therefrom, circuit
switches controlled by said shafts, individualizing switches and actuating devices
therefor, electro-magnets adapted to operate said switches and devices and relays
in said line responding to strong intermittent currents to short circuit through a
resistance the electro-magnets controlling the type-wheels of any or all receivers
in line.
30. In an individualizing cut-out for printing telegraphs, the combination with a
source of electric energy and circuit, of pole-changers, means for alternating and
varying the strength of current and breaking the circuit of receivers included
therein, type-wheel shafts and type-wheels, means for effecting impressions there-
from, circuit switches controlled by said shafts, individualizing switches and
actuating devices therefor, electro-magnetic devices adapted to operate said switches
and devices and relays in said line responding to strong intermittent currents to
short circuit through a resistance the electro-magnets controlling the type-wheels of
the receiver or receivers in circuit.
31. In an individualizing cut-out system for printing telegraphs, a source of
electric energy, a line circuit, means included therein for pulsating and varying
the strength and alternating the current, receivers in circuit having shafts carrying
type-wheels, magnetic devices for rotating and positioning the type-wheels and
individualizing devices operated by abnormal currents to short circuit through
resistance the magnetic devices controlling the type-wheel of any instrument or
instruments.
32. In an individualizing cut-out system for printing telegraphs, a source of
electric energy and line circuit, means for transmitting normal and abnormal
electric currents, receivers included in said line and provided with shafts having
type-wheels mounted thercon, magnetic devices for controlling said type-wheels,
and electrical devices responding to abnormal currents and operating individualizing
cut-out devices to short circuit through resistance the type-wheels of the required
instrument or instruments included in the line circuit.
33. In an individualizing cut-out system, the combination with a source of
electric energy, a circuit and means included therein for pulsating and varying the
strength and alternating the current, of receivers in circuit having type-wheel
shafts provided with type-wheels, magnetic devices for rotating and positioning
said type wheels, individualizing devices operated by abnormal currents to short
circuit through a resistance the magnetic devices controlling the type-wheels of any
required instrument or instruments.
34. In a printing telegraph system, a source of electric energy, a main line,
devices included therein for alternating and varying the strength of current,
electro-magnets in said main line controlling type-wheels and printing devices,
circuit preserving switches, type-wheel shafts actuating said switches at a deter-
minate position electro-magnets included in a circuit closed by said switches and
responding to currents stronger than currents controlling the type-wheels,
individualizing cut-out switches and devices actuated by said electro-magnets
responding only to strong currents and operating, substantially as described, to
short circuit through a resistance the electro-magnets controlling said' type-wheels.
Dated this Third day of June A.D. 1892.
SAMUEL RUSH LINVILLE,
W. P. Thompson & Boult,
Agents for the Applicant.