printing prin
Year: 1887

page_text: Date of Application, 28th June, 1887
Complete Left, 28th Apr., 1888
Complete Accepted, 1st June, 1888
I GEORGE AUGUSTUS SCOTT of No. 14 Caversham Road in the County of Middlesex
Electrical Engineer do hereby declare the nature of this Invention to be as follows:-
My said invention consists in part of improvements in the receiving or printing
instruments of printing telegraphs worked with three or more wires or on synchronous
systems or on synchronous multiplex systems which improvements consist essentially
of a series of magnets or solenoids having their armatures or cores so arranged
relatively to a flexible connection or flexible connections secured to or engaged with
the type wheel or the shaft thereof or relatively to mechanism connected to or
engaged with the type wheel or its shaft that the part of the wheel bearing any
required letter or character may be turned or permitted to turn round to the
printing point by opening or closing the circuit of a battery or batteries through
the coil or coils of one or more or all of the said magnets or solenoids.
My said Invention consists further of the improvements hereinafter described in the
arrangement of the keys and contacts of transmitting instruments of printing
telegraphs worked on systems such as that known as the Baudot System which
improvements are capable of use in connection with receiving or printing instruments
provided with my improvements hereinbefore described.
According to this part of my invention I provide a separate key for each
combination which represents a letter or character on the type wheel and I so.
arrange each one of the several keys relatively to the several contacts connected
to those of the segments of the distributor through which the current must pass
to effect or govern the turning of the type wheel that the proper connection of the
battery or batteries to the segment or segments to which it or they must be connected
in order that any one of the letters or characters on the type wheel may be brought.
to the printing point is always effected by the depression of one or other of the keys
instead of by the simultaneous depression of several keys which is necessary in order
to produce the combinations of currents required for bringing some of the said letters
and characters to the printing point by means of the transmitting instrument
heretofore used. The apparatus which I refer to as the "distributor" is of the
construction used and known by that name in connection with the Delaney system
the La Cour System the Baudot System and the Myers System.

page_text: My said invention consists further of the improvements hereinafter described by
which the sending of a current to line by the depression of the keys of the trans-
mitting instrument or one of them is prevented during one rotation of the trailer if
the key or keys be depressed after the trailer of the distributor has touched the first
of the segments connected to the same instrument the object of which improvements
is to prevent a false combination of currents being sent to line.
According to this part of my Invention I place in the circuit of the main battery
the contacts of a relay by which the circuit of the said battery is connected to or
disconnected from the transmitting instrument according to the position of the tongue
of the said relay which is actuated so as to connect or disconnect the said battery as
required by the completion of the circuit of a battery through one or other of the
magnets of the said relay the circuit to connect the main battery being closed by the
action of the ordinary trailer or of a supplementary trailer carried by the ordinary
trailer arm when any of the keys of the transmitting instrument connected to the
distributor is depressed before the main line trailer has touched the first of the
segments through which the current from the said transmitting instrument is to
pass to line and the circuit to disconnect the main battery being closed by the action
of the said supplementary trailer or the main line trailer after the latter has passed
the last of the segments connected to the said transmitting instrument whether or
not any of the keys thereof be at that time depressed. The relay may be either a
neutral relay on a polarized relay. Where a polarized relay is used f arrange the
connections so that currents are sent through the magnets thereof in reverse directions
according as the main battery is to be connected to or disconnected from the trans-
mitting instrument.
In some cases I effect the aforesaid object by locking the keys of the transmitting
instrument instead of by disconnecting the main battery therefrom. For this purpose
I place a magnet or magnets in a circuit which is opened and closed at the required
times by the rotation of the trailer the armature or armatures of the said magnet or
magnets being so arranged relatively to the keys of the transmitting instrument that
when the said circuit is closed the said keys are locked either in their normal position
or in their depressed position or in both positions while the trailer is passing the
segments through which the current is to be sent to line from the instrument the keys
of which are thus locked. Instead of arranging the magnets and their armatures so
as to lock the keys when the circuit is closed I in some cases arrange them so as to
lock the keys when the circuit is opened.
My said Invention consists further in bringing the main relays of the receiving
instruments of telegraphs worked on synchronous multiplex systems to their normal
position by apparatus actuated by the press lever after the required combination has
been formed which apparatus may be either electrical or mechanical. In the case of
electrical apparatus the tongues of the said relays are thrown to their normal position
by closing a circut through their coils in the required direction by the action of the
press lever and in the case of mechanical apparatus the said tongues are actuated by
contact therewith of any suitable arrangement of mechanism connected to the press
lever. Where the said relays are of the construction known as "Hughes's relays
I cause the armatures thereof to be thrown to the normal positions by means of a rod
or lever or other suitable connection secured or connected to and actuated by the
press lever.
92
In some cases I use solenoids instead of magnets in all or any of the arrangements
hereinbefore described.

page_text: Improvements in Type Printing Telegraphs.
I GEORGE AUGUSTUS SCOTT of No. 14 Caversham Road in the County of Middlesex
Electrical Engineer do hereby declare the nature of my Invention and in what
manner the same is to be performed to be particularly described and ascertained
in and by the following statement:-
My said invention consists in part of improvements in the receiving or printing
instruments of printing telegraphs worked with three or more wires or on synchro-
nous systems or on synchronous multiplex systems which improvements consist
essentially of a series of magnets or solenoids having their armatures or cores so
arranged relatively to a flexible connection or flexible connections socured to or
enagaged either directly or indirectly with the type wheel or the shaft. thereof or so.
arranged relatively to mechanism connected to or engaged with the type wheel or its
shaft that the part of the wheel bearing any required letter or character may be.
turned or permitted to turn round to the printing point by opening or closing the
circuit of a battery or the circuits of batteries through the coil or coils of one or
more or all of the said magnets or solenoids.
Figures 1 and 2 of the accompanying drawings are elevations taken at right angles.
to each other showing five magnets and their armatures so arranged relatively to a
flexible connection secured to mechanism engaged with the type wheel shaft as to
admit of the wheel being turned to any required point by closing the circuit of a
battery or the cirenits of batteries through one or more or all of the said magnets.
In the said Figure 1 the frame which supports the parts of the mechanism is not.
shown.
Referring to the said Figures 1 and 2 a is the frame which supports the type wheel
and the working parts of the apparatus 616263646 are the magnets e¹² c³ ³ ³ are
the armatures of the said magnets is the type wheel shaft is a lever carrying at.
one end a sector e which gears with a pinion secured to the type wheel shaft-to
the other end of which lever one end of a flexible connection is secured which
flexible connection passes under a pulley carried by the frame a and between a row:
of pulleys carried by the armatures cc² c3 c c and another row ot
pulleys jjjjj carried by a part of the frame a and is secured at its other end to
an adjusting serew working in a standard a secured to the base of the said frame..
The pins or spindles on which the pulleys j' ja jajj work are so secured to the frame a
as to be capable of being raised or lowered and secured at various heights. The
coils of the five magnets 62 36 18 are respectively connected through relays (not
shown in the drawings) to a local battery or to separate local batteries (not shown in
the drawings) the circuit or circuits of which battery or batteries is or are
closed or opened according to the position of the said relays the coils of each of which
relays are also respectively connected to the several receiving segments of the dis-
tributor (not shown in the said Figures 1 and 2) according as one or more or all of the
sending out segments of the distributor at the sending station is or are connected to
the main battery the effect being to depress the flexible connection between two or

page_text: more of the pulleys and j¹³ whereby the outer end of the lever e
is depressed the extent of depression depending on the number of magnets through
which the circuit or circuits is or are closed and the distances between the armatures
and the poles of the said magnets. The said Figures 1 and 2 show the arrangement
in the case of a type wheel bearing thirty two letters or characters on its periphery in
which case the distances between the respective magnets and their armatures when the
circuits are open should be sufficient to cause the separate depression of the five
armatures to respectively effect the turning of the type wheel through one thirty
second one sixteenth one eighth one fourth and one half of a revolution the wheel
being brought to any one of the other required twenty six positions by the depression
at one time of the armatures of two or more or all of the five magnets. To illustrate
the effect of closing the circuits through the magnets the position of the parts when
the armature is depressed is indicated in dotted lines in Figure 1 the effect of
depressing the said armature being to turn the type wheel through one quarter of a
revolution.
The magnets may be connected to the local batteries and relays and the latter
may be connected with the segments of the distributor as illustrated in Figure 11 of
the accompanying drawings which is hereinafter described or the said parts may be
otherwise suitably connected.
Figures 3, 4 and 5 of the accompanying drawings illustrate another arrangement of
five magnets and their armatures for effecting the same object. Figure 3 being an
elevation and Figure 4 a plan thereof. In this arrangement the several magnets
61626365 are respectively carried by arms or levers kkkkk the arms k² k³ k¹ k³
being loosely mounted on a shaft or axis fixed in the upper ends of standards to one
of which standards the arm is secured. The said arın k¹ is therefore fixed and the
arms k² k³ ³ are free to swing or vibrate on the shaft or axis 1. The armatures
1 2 3 4 (see Figure 4) of the magnets bbb3b are respectively carried by the
arms kkkk and the armature 6* of the magnet 65 is carried by an arm k which is
also loosely mounted on the shaft and carries the toothed sector which gears with
the pinion d on the type wheel shaft d¹ and is normally held in the position shown in
the drawing by means of a spring or springs or by means of a weight. The said
arms kkkkkk are prevented from separating beyond the required distance
by means of links m m. Figure 5 is a side elevation of the arm or lever and parts
carried thereby the shaft or axis on which the said arm works being in section.
The action of this arrangement is essentially the same as that of the arrangement
herein before described with reference to Figures 1 and 2 of the accompanying
drawings the closing of the circuit of the battery or batteries through any one or
more or all of the five magnets causing the type wheel to be turned through a
portion of a revolution by the motion of the arm through the medium of the
toothed sector e carried thereby which toothed sector gears with the pinion d² on
the type wheel shaft d'.
The
In Figures 6 and 7 of the accompanying Drawings an arrangement is illustrated
by which the same result is produced by means of five solenoids Figure 6 being
an elevation and Figure 7 a transverse section taken on the line A Figure 6.
Referring to the said Figures n is a rack which gears with the pinion d² on the type
wheel shaft d' which rack is connected to a spring n¹ suspended from the upper part
of a frame consisting of a base o' and uprights of o supporting a plate o³. q¹² 4³ ³°
are the solenoids which are connected to each other by means of bolts qq.
solenoid is also connected by the same means to a plate n² secured to the rack n
and the solenoid q is also secured to the base o' of the frame. p' p² p³ p² p³ are the
cores of the several solenoids the core pl being secured at its upper end to the plate n²
and each of the several other cores p2 ppp being respectively secured at its upper
end to one of the solenoids qqqq. The holes through which the several bolts q q
are passed are of such a size as to allow the said bolts to slide freely therein wlieni
the solenoids approach and recede from one another as hereinafter described.
The action of this arrangement is essentially similar to that of the arrangements
hereinbefore described with reference to Figures 1 and 2 of the accompanying

page_text: Drawings and with reference to Figures 3, 4 and 5 of the accompanying Drawings
the closing of the circuit of a battery through one or more or all of the coils of the
solenoids causing the solenoid or solenoids above it or them to be drawn downward
whereby the type wheel is turned to any required point. On the circuit being opened
the spring a raises the solenoids to their normal position and causes the type wheel
to return to its normal position.
Instead of actuating the type wheel through the engagement of a toothed sector or
a rack with a pinion on the type wheel shaft this may be effected by the attachment
of a flexible connection directly to the type wheel shaft or to a pulley thereon in which
case the type wheel is caused to revolve in one direction by means of the strain on
the said connection and in the other direction by means of a spring or weight.
Where a flexible connection is used with the arrangement herein before described
with reference to Figures 3 and 4 one end of the said connection is attached to the
arm and where the said connection is used with the arrangement hereinbefore described
with reference to Figures 6 and 7 one end of the said connection is attached to the
plate n².
Or the type wheel may be actuated or its motion may be governed through inter-
mediate connections or mechanism of any kind by which varying extents of motion
may be communicated to the said wheel by the notion of one or more or all of the
armatures of a series of magnets or the cores of a series of solenoids which means of
actuating the type wheel constitutes the essential feature of this part of my
invention.
The flexible connection may be of any material which will not be perceptibly
liable to variation of length in consequence of the tensile strain thereon consequent on the
working of the apparatus or in consequence of variation of temperature or of moisture
in the atmosphere. Unspun silk or a fine metal chain are suitable for the purpose.
In all cases where the turning of the type wheel is effected or permitted when the
circuit or circuits through the coils of one or a series of magnets is or are closed the
parts may be so arranged that the turning of the type wheel is effected or permitted
when the said circuits are opened. And in all cases where the turning of the type
wheel is effected or permitted by the flexure of a normally straight portion of a flexible
connection the parts by which the flexure is produced may be so arranged that a portion
or portions of the said connection shall be normally in a state of flexion and be per-
mitted to straighten when the type wheel is required to turn or to be turned.
My said invention consists further of the improvements hereinafter described in the
arrangement of the keys and contacts of transmitting instruments of printing
telegraphs worked on systems such as that known as the Baudot System which
improvements are capable of use in connection with receiving or printing instruments.
provided with my improvements hereinbefore described.
According to this part of my Invention I provide a separate key for each
combination which represents a letter or character on the type wheel and I so arrange
each one of the several keys relatively to the several contacts connected to those of
the segments of the distributor through which the current must pass to effect or
govern the turning of the type wheel that the proper connection of the battery or
batteries to the segment or segments to which the battery or batteries must be
connected in order that any one of the letters or characters on the type wheel may be
brought to the printing point is always effected by the separate depression of one or
other of the keys instead of by the simultaneous depression of several keys which is
necessary in order to produce the combination of currents required for bringing some
of the letters and characters on the type wheel to the printing point by means of the
transmitting instrument heretofore used. The apparatus which I refer to as the
"distributor is of the construction used and known by that name in connection
with the Delaney system the La Cour System the Baudot System and the Myers
System.
My said Invention consists further of the improvements hereinafter described by
which the sending of a current to line by the depression of the keys of the transmitting.

page_text: instruments or one of them is prevented during one rotation of the trailer if the key
or keys be not depressed before the trailer of the distributor has touched the first of
the segments or group of segments connected to the same instrument the object of
which improvements is to prevent a false combination of currents being sent to line.
According to this part of my Invention I place in the circuit of the main battery
the contacts of a relay by which the circuit of the said battery is connected to or
disconnected from the transmitting instrument according to the position of the tongue
of the said relay which is actuated so as to connect or disconnect the said battery as
required by the completion of the circuit of a battery through one or other of the
magnets of the said relay the circuit to connect the main battery being closed by the
action of the ordinary trailer or of a supplementary trailer carried by the ordinary
trailer arm when any of the keys of the transmitting instrument connected to the
distributor is depressed before the main line trailer has touched the first of the
segments through which the current from the said transmitting instrument is to pass
to line and the circuit to disconnect the main battery being closed by the action of the
said supplementary trailer or the main line trailer after the latter has passed the last
of the segments connected to the said transmitting instrument whether or not any of
the keys thereof be at that time depressed. The relay may be either a neutral relay or
a polarized relay. Where a polarized relay is used I arrange the connections so that
currents are sent through the magnets thereof in reverse directions according as the
main battery is to be connected to or disconnected from the transmitting instrument.
In some cases I effect the aforesaid object by locking the keys of the transmitting
instrument instead of by disconnecting the main battery therefrom. For this purpose
I place a magnet or magnets in a circuit which is opened and closed at the required
times by the rotation of the trailer the armature or armatures of the said magnet or
magnets being so arranged relatively to the keys of the transmitting instrument that
when the said circuit is closed the said keys are locked either in their normal position
or in their depressed position or in both positions while the trailer is passing the
segments through which the current is to be sent to line from the instrument the
keys of which are thus locked. Instead of arranging the magnets and their armatures
so as to lock the keys when the circuit is closed I in some cases arrange them so as to
lock the keys when the circuit is opened.
Figure 8 of the accompanying drawings is a diagram illustrating the aforesaid
arrangement of the keys and contacts and also one of the said arrangements for
automatically connecting the main battery to and disconnecting it from the keys of
the transmitter by the rotation of the trailer arm.
Referring to the said Figure 8 * is the distributor 123 are the sending
out segments of one of the groups of segments. and s³ss and ss are three
of the groups of contacts connected to the said segments. t are three of the
transmitting keys each of which keys is connected to the main battery through the
contacts of a polarized relay u'. Ünder each of the other keys of the instrument
(which are not shown in the drawing) is similarly arranged one of the several groups
of contacts through each of which groups respectively the current is required to be
sent to make the combination required to bring one or other of the several other
letters or characters on the type wheel separately to the printing point consequently
the type wheel is turned to the extent necessary to bring each of the said letters or
characters to the printing point by the separate depression of one or other of the
several keys. is the trailer arm of the distributor is the ordinary trailer and
is the supplementary trailer which is insulated from the trailer arm.
700 707
contacts on the distributor arranged in the path of motion of the trailer 3. u² u³ are
local batteries in the circuits of which the relay u' is placed which relay and batteries
are connected to the contacts and to circuit closers arranged under the
transmitting keys three of which circuit closers marked w² w³ are shown in the
diagram. Contacts corresponding to those marked 878 and similarly connected
to relays corresponding to the relay u¹ and also connected to the batteries u² u³ are
similarly arranged relatively to each of the other groups of segments on the distributor
are

page_text: and to the keys of the other transmitting instruments. By means of the arrangement
described of the said contacts and of the parts connected thereto and acting in
conjunction therewith the main battery is connected with the keys only if one of the
said keys be depressed while the supplementary trailer is touching simultaneously
the contacts and when the said battery remains so connected until the said trailer
touches simultaneously the contacts the touching of which contacts by the
trailer causes the battery to be disconnected from the keys. Consequently a
current cannot be sent to line through any segment of the group of segments shown
in the diagram if the supplementary trailer has passed the contacts before the
key is depressed until by the rotation of the trailer arm the trailer again touches
the said contacts 67.
In the said Figure 8 and in the other Figures hereinafter referred to the earth
connections of the batteries are marked E.
The effect of the contacts and instruments which are arranged relatively to the
other groups of segments not shown in the diagram is the same relatively to those
groups as the effect described with reference to that shown.
Figure 9 is a diagram illustrating a modification of the arrangement described with
reference to Figure 8 which modification consists in the substitution of one local
battery for the two local batteries and in the substitution of a continuous contact
for the contacts and the other contacts corresponding therewith and in the
substitution of a neutral relay for the polarized relay. The action of the said
arrangement is as follows. If any of the keys be depressed while the trailer ³ is
passing the contact the circuit of the battery is completed through the left hand
magnet of the relay a whereby the tongue of the said relay is drawn to the left
connecting the main battery to the keys and the said battery reumains so connected
until the trailer passes the contact when the circuit of the said battery w¹ is
completed through the right hand magnet of the said relay a whereby the tongue of
the said relay is drawn to the right and the main battery is disconnected from the keys.
Figure 10 is a diagram illustrating the arrangement for locking the keys of the
transmitting instrument at the required times the said arrangement being shown in
conjunction with a distributor in which the same segments are used for both sending
and receiving.
Referring to the said diagram y is a catch lever so arranged relatively to the keys.
(one of which is shown at ) that it may be caused to engage with and hold the said
keys in either their normal position or their depressed position and is a magnet by
which the said catch lever is actuated. " is a continuous contact on the distributor
connected to the local battery over which contact the trailer e³ travels and is
another contact on the distributor which contact is placed in the path of motion of the
trailer and is connected to the magnet. This arrangement prevents the keys
from being depressed while the trailer is touching both the contacts during
which time the main trailer is passing over the group of segments connected to the
contacts under the keys and the said arrangement also causes any one of the keys
when depressed to be held in the depressed position while the trailer touches both
the said contacts and to remain so held until the trailer 3 passes off the contact
Although I have illustrated the arrangement hereinbefore last described only in
conjunction with a distributor in which the same segments are used for both sending
and receiving the said arrangement is applicable to any instrument used on
synchronous multiplex systems in cases where it is necessary or desirable that the
sending of the current to line be automatically governed according to the position of
the trailer relatively to the group of segments connected to the same instrument.
My said Invention consists further in bringing the main relays of the receiving
instruments of telegraphs worked on synchronous multiplex systems to their norinal
position by apparatus actuated by the press lever after the required combination has
heen formed which apparatus may be either electrical or mechanical. In the case of
electrical apparatus the tongues of the said relays are thrown to their normal position
by closing a circuit through their coils in the required direction by the action of the

page_text: press lever and in the case of mechanical apparatus the said tongues are actuated by
contact therewith of any suitable arrangement of mechanism connected to the press
lever.
Figure 11 is a diagram of an arrangement by which a current is caused by the action
of the press lever to be sent through the magnets of the relays in the direction which
throws them to their normal position. Referring to the said diagram 2 2 2 2 2 are
the main relays 3 is the press lever which carries a group of contacts 4 connected to
a battery 5. 6 are other contacts connected to the coils of the said relays and so
situated relatively to the contacts carried by the press lever that when the latter is
actuated the circuit of the battery 5 is completed through the said coils in the direction
to throw the tongues of the said relays to their normal positions i.e. to the left.
Figures 12 and 13 are diagrams illustrating an arrangement by which the tongues
of the relays are mechanically thrown to their normal positions when the press lever
is actuated. Referring to the said Figures 7 is a rod jointed to links & 8 and to a
cranked lever 9 connected to the press lever 3 and carrying fingers 10, 10. When
the press lever is in its normal position as shown in Figure 12 the said fingers are
not in contact with the tongues of the relays and when the press lever is actuated the
said rod is shifted endwise and the said fingers throw the tongues of the relays to the
left as shown in Figure 13.
Where the main relays are of the construction known as "Hughes' relays " I cause
the armatures to be thrown to their normal position by means of a rod or lever or
other suitable connection secured or connected to and actuated by the press
lever.
In some cases I use solenoids instead of magnets in all or any of the arrangements
hereinbefore described.
Having now particularly described and ascertained the nature of my said Inven-
tion and in what manner the same is to be performed declare that what I
claim is:
First. The improvements hereinbefore described in the receiving or printing
instruments of type printing telegraphs which improvements consist essentially of an
arrangement by which various extents of motion of the type wheel are produced or
permitted by the motion of one or more or all of the armatures of a series of magnets
or of the cores of a series of solenoids.
Secondly. Arrangements in which various extents of motion of the type wheel of
the receiving instrument of type printing telegraphs are produced or permitted by
flexion of a taut filament or thread or chain or the equivalent thereof.
Thirdly Arrangements in which various extents of motion of the type wheel of
the receiving instrument of type printing telegraphs are produced or permitted by
relaxation of pressure by which a taut filament or thread or chain or the equivalent
thereof is normally kept in a state of flexion.
Fourthly. Arrangements in which various extents of motion of the type wheel of
the receiving instrument of type printing telegraphs are produced or permitted by
action of the armature or armatures of one or more or all of a series of magnets or
-the core or cores of one or more or all of a series of solenoids on a taut filament or
thread or the equivalent thereof.
Fifthly. Arrangements in which various extents of motion of the type wheel of
the receiving instrument of type printing telegraphs are produced or permitted by
motion of the armature or armatures of one or more or all of a series of magnets or
the core or cores of one or more or all of a series of solenoids which armatures or
cores normally press on a taut filament or thread or chain or the equivalent thereof
and thereby keep the same normally in a state of flexion.
Sixthly. The use in arrangements for producing or permitting various extents of
motion of the type wheel of the receiving or printing instruments of printing telegraphs
of a series of magnets or solenoids and their armatures or cores so arranged and
connected that the completion of the circuit of a battery through one of the magnets

page_text: or solenolds of the series causes motion of each or the other magnets or solenous of
the series.
Seventhly. The improvements in the receiving or printing instruments of type
printing telegraphs hereinbefore described with reference to and illustrated in
Figures 1 and 2 of the accompanying Drawings.
Eighthly. The improvements in the receiving or printing instruments of type
printing telegraphs herein before described with reference to and illustrated in
Figures 3 and 4 of the accompanying Drawings.
Ninthly. The improvements in the receiving or printing instruments of type
printing telographs herein before described with reference to and illustrated in
Figures 6 and 7 of the accompanying Drawings.
Tenthly.—The provision in transmitting instruments of type printing telegraphs for
use with synchronous multiplex systems of a separate key for each letter or character
on the type. wheel and the separate connection of the segments of the distributor with
contacts so arranged in groups relatively to certain of the said keys that the connection
of the main battery to any required combination of the said segments is effected by
the separate depression of one or other of the said keys.
Eleventhly. The arrangement hereinbefore described with reference to and
illustrated in Figure 8 of the accompanying Drawings by which the main battery is
connected to the main line segments of the distributor in transmitting instruments of
type printing telegraphs for uso with synchronous multiplex systems.
Twelfthly Transmitting instruments of type printing telegraphs for use with
synchronous multiplex systems in which the main battery is connected with the
transmitting apparatus through the contacts of a relay placed in the circuit of a battery
or in the circuits of batteries connected to contacts on the distributor the action of
which relay is governed by the depression of any one of the koys of the transmitting
instrument.
Thirteenthly. The arrangement hereinbefore described with reference to and
illustrated in Figure 8 of the accompanying Drawings for controlling the connection
of the main battery with the main line segments of the distributor according to the
position of the trailer relatively to the main line segments of the distributor.
Fourteenthly. The arrangement herein before described with reference to and
illustrated in Figure 9 of the accompanying Drawings for controlling the connection
of the main battery with the main line segments of the distributor according to the
position of the trailer relatively to the said segments.
Fifteenthly. The combination with transmitting instruments of type printing
telegraphs for use with synchronous multiplex systems of an arrangement by which the
transmitting keys are locked in either their norinal position or their depressed position
by apparatus actuated by the current from a battery the circuit of which is either
opened or closed while the trailer is passing over the main line segments.
Sixteenthly. The arrangement hereinbefore described with reference to and
illustrated in Figure 10 of the accompanying Drawings for locking the keys of the
transmitting apparatus of type printing telegraphs used with synchronous multiplex
systems.
Seventeenthly. The combination with receiving apparatus of type printing
telegraphs for use with synchronous multiplex systems of arrangements actuated by
the press lever and causing the tongues of the main relays to be thrown to their
normal position each time the press lever is actuated to take an impression from the
type wheel.
Eighteenthly. The combination with receiving apparatus of type printing
telegraphs for use with synchronous multiplex systems of an arrangement by which
the tongues of the main relays are thrown to their normal position by the current
from a battery the circuit of which is completed each time the press lever is actuated
to take an impression from the type wheel.
Nineteenthly. The combination with receiving apparatus of type printing
telegraphs for use with synchronous multiplex systems of an arrangement by which

page_text: the tongues of the main relays are thrown to their normal position by meclianism
actuated by the press lever each time the said lever is actuated to take an impression
'from the type wheel.
Twentiethly. The arrangement herein before described with reference to and
illustrated in Figure 11 of the accompanying Drawings for throwing the tongues
of the main relays to their normal position when the press lever is actuated to take
an impression from the type wheel.
Twentyfirstly. The arrangement hereinbefore described with reference to and
illustrated in Figures 12 and 13 of the accompanying Drawings for throwing the
tongues of the main relays to their normal position when the press lever is actuated to
take an impression from the type wheel.
W. T. WHITEMAN,
Agent for the Applicant.