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Патент USA US2403441

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July 99 1946.
Filed Aug. 26, 1942
`\._ ‘ ¿1NLPm/sMu.:
R/ 7.21 S K/NKEAD
Patented July 9, 1946
Fullerton S. Kînkead, deceased, late of New York,
N. Y., by Rita Smith Kinkead, administratrix,
New York, N. Y., assignor to Bell Telephone
Laboratories, Incorporated, New York, N. Y., a
corporation of New York
Application August 2,6, 1942, Serial No. 456,149
12 Claims. (C1. 178-42)
different speeds or due to the fact that various
types of supervisory signals or circuits are re
quired for each of the systems which may or may
not be the same, Such systems frequently are
locally generated signals form no part of any
'message received by the reperforator 'and need
not be added to the message as subsequently
transmitted. Signals of this type are sometimes
called “non-intelligence” or “non-message” sig
nals which terms, for the purposes of this speci
fication and the claims appended hereto are used
to describe and designate any signals or permu
tation code groups of pulses which do not form
a part of the subject-matter of any message as
transmitted from the station of origin and re
corded at the station of ultimate destination
thereof. Due to the characteristics of the differ
ent code combinations generally employed to
unable to transmit to other systems through the
usual type of telegraph repeater, for example, due
paratus and due to the functions and symbols
This invention relates to telegraph systems and
more particularly to receiving station circuits and
It is frequently desirable to transfer telegraph
messages from one line or system to another line
or system, which systems or lines are so arranged
that it is impossible or impractical to repeat the
messages from one system to another by means
of the usual type of telegraph repeating instru
ments due to the fact that the lines operate at
to the fact that one system may not be prepared
to'receive messages when the messages are trans
mitted from the other system. Under these and
actuate the reperforator and other telegraph ap
represented by the respective code combinations,
certain of these code combinations are considered
more desirable than others to be generated locally
other circumstances it has been the practice to 20 for advancing the recording medium through the
recording instrument. In accordance with the
receive the signals on a reperforating instrument
specific embodiment of the invention described
and thus store the signals for transmission over
herein, circuits are arranged to generate the so
any other desired line or system at a later time.
called letters signals which comprise a spacing
In some instances a storage controlled transmit
start pulse followed by ñve significant selective
ter which usually takes the form of a tape control
pulses and a stop pulse, all of which are marking.
transmitter is associated with the reperforator
Preferably in accordance with the present in
unit and the tape passes from reperforator unit
vention, circuits are so arranged that it is neces
directly to the transmitter unit. In other cases
it is desirable to remove the tape from the re
perforator and carry it to some transmitter for
transmission over a desired line.
sary to precede each message by one or more let
ters signals for properly conditioning the reper
forator and insuring that it will properly receive
the message to be transmitted to it. These sig
In order to insure that the entire message will
nals are followed `by the message proper after
be transmitted when required or that the entire
which an end-of-message signal is transmitted
message can readily be removed from the reper
forator it is necessary to make some provision for 35 over the line to the reperforator.
The end-of-message signal conditions the local
advancing the tape out of the reperforator, In
circuits so that if an associated tape controlled
the past this has been accomplished either man
transmitter transmits all the available tape a
ually or by providing a special reperforator unit
group of letters signals will be generated locally
to enable the recording medium to be advanced
through the mechanism when no signals are being 40 and supplied to the reperforator for an interval
of time sufficiently long to insure that the entire
received. In accordance with the present inven
tion an improved arrangement is provided in
which it is unnecessary to provide a special re
perforator unit or to incorporate additional ele
message will be transmitted by the associated
If no tape controlled transmitter is associated
ments in the reperforator to cause it to feed out 45 with the reperforator, then the end-of-message
signal will condition the circuits so that the oper
additional tape,
ator may cause the reperforator to advance the
In accordance with the present invention cir
recording means through it by operating a special
cuits and relay equipment are provided adjacent
key, In this case also circuits operate sufficiently
to and at the same location as the reperforator for generating the signals locally and for oper 60 long to insure that the entire message will ad
vance out of the reperforator.
ating the reperforator in accordance with these
When desired, manual control may also be pro
signals to automatically advance the tape out of
vided when an automatic transmitter is associated
the machine.
with the reperforator.
Any suitable signal may be generated locally
The local generation of the signals for advanc
and transmitted to the reperforator but the 55
-ing the recording medium through the reperto
tion of relay 20 at the end of the first spacing pulse
from battery through the winding of relay 32, the
left-hand operated contacts of relay 32 and the
winding of relay 29 to ground through the nor
rating instrument is interrupted in the event that
the additional signals are received over the line,
thus insuring that the local generation of signals
whether started manually or automatically will
not in any way interfere with the reception of
mally closed contacts i5 and I6 controlled by the
reperforator unit II.
Relay 29 in operating completes an obvious cir
cuit for the operation of the slow-release relay
or reperforator unit.
2S. Relay ‘28 in operating interrupts the operat
The foregoing object and features, as woll as
other objects and features, of the present inven-‘I 150 ing circuit of relay 32 and completes a circuit for
maintaining itself operated from battery through
tion may be more readily understood from the>
its winding and left-hand operated contacts to
following description when read with reference' to
the attached drawing whichshows inv detail one » groundëth'roughthe left-hand contact and arma
ture of relay‘ZIl. Relay 28 is slow in releasing so
speciñc embodiment of the invention. >It is to‘be
.` that it will r'e'main’operated due to current flowing
understood, however, that the invention as de
nned in the claims appended` hereto is not tc- be - in the circuit through the left-hand Contact and
rarmature of’ relayv 20 during the time relay 20 is
limited in any way to the specific embodiment
following the signals received over line I0 and
described herein.
repeated by relay I4 to relay 2U.
In the specific embodiment of this invention
The operation of either relays 23 or 29 com
shown in the drawing the relays are normally
pletes a circuit for the operation of relay 2| from
maintained in the position` shown in the drawing.
battery through the winding of relay 2| to ground,
Current ii'ovving throughv the: upper windings of
through the operated contacts of either relays 23
relays E=2fand23 and the lower'w-inding cf relay 2i)
or 29.
maintainsthe armatures of these relays in their
The operation of relay 2l transfers the circuit
markingpositions; that' is in the positions shown
of the selector »magnet I9 of the reperforator Il
inthe drawing.
The selector magnetl I?lof` the reperforator SI
from the contacts of relay 23 to the contacts of
is maintained operated'in acircuitextending from
line relay I4. Consequently, thereafter the
ground~A throughz its winding'` and the left~hand
selector magnet I9'will follow the’signals trans
succeeding messages transmitted to the storage
inner break contacts of . relay ZI
to battery,
thrcugh‘the right-hand' Contact and armature of
relay 23. Relay If4= is maintained inv its marking
position. as shown in'` the drawing so long as a
marking condition isA received over line I9,
Normally the motor of the transmitter I2, as
illustrated at 42~'inrthe«drawing, is connected to
mitted over line I0.
One or more letters signals
transmitted preceding the message is required in
order to allow sul'licient time for the various re
lays described above to operate, as well as tov allow
sufiicient time for stopping the automatic local
, generation of signals as will-be described herein
source of power ßßï‘through the closed switch ¿lli
Thereafter the circuits Will remain in the posi
and is continuously'operating. In a similar manw
tion describedA during the remainder of the re
ner a- motor for operating the reper-forator II,
ception of 'the message.
not shown in-tliedrawing, is connected‘to a source 40
During the operation of the reperforator II,
of~power’andlcontinually operating as is well un
contacts I8 close once during the reception of
derstood by those skilled in the art.
As» pointed; out above, the first signals trans~
mitted over line lûvtothefrecording instrument
each and every code combination received by the
reperforator II. The circuit of these contacts,
however. is open at the right-hand operated con
II will generally comprise one or more “letters 45 tacts of relay 29'at this time so that the closure
code” combinations. Relay; I4' willvrespond to
`of these contacts during the reception of a mes
these code combinations andfcause its armature
sage performs no useful function. Contacts I1
to moveto itsspacing contact> in“ response tothe
are closed by the selector of the receiving device
reception of thespacing start‘pulse‘of this code
Il in response to the reception of a letters code
combination. As iS Well understoody by those 50 combination. In other words, contacts I1 open
skilled inthe art, every start-stopY code combinau
once in response to the receptionof each letters
tion is preceded by a spacingstart pulse. Conse
signal received by the reperforator I I. Similarly,
quently, the armature of relay Ilifwil move to its
contacts I 5 are momentarily operated once by
left-hand positiony at the beginning of any code
the reception of each code combination usually
combination received over line I0, it being under 55 employed to represent the letter I-I. Each of the
stood that while this,v invention is not so limited
contacts I5, l1 and I8 are operated momentarily
the specific embodiment of- this4 invention de
in response to the reecption of the respective code
scribed hereinis adapted vfor use in telegraph sys
combinations by the selecting mechanism of re»
tems employing these-called start-stop method
perforator II. Contacts I6, however, are op
of synchronizing;
erated in response to the reception of a figures
When the-armature of relay- I4 moves to its-left» 60 code combination and remain operated until a
hand position an obviousl circuit is completed
letters code combination is received which causes
through'the upper winding of relay 2t, the cur
the contacts to be restored or closed as shown
rent through which overcomes the effect of the
on the drawing. In addition to the closure of
current flowing through the'lower winding of this
contacts IB'in response to a letters signal, the
relay and causes-its armature Vto vmove 4to its spac 65 selecting equipment is frequently arranged to
ing or left-hand position. The operation of relay
cause contacts I6 to close in response to the re
20 to its left-hand position completes av circuit for
ception of a space code combination. While these
the operation of relay 32f from battery through
contacts, as described above, are arranged to be
the winding of relay 32, the- left-hand break con»
tacts ofïrelay- 2B .to ground `through the'left-hand 70 actuated in response to the speciiically enu
merated code combinations, it wil] be readily ap
contact and armature offrelay'20'. The operation
parent to those skilled in the art that any other
of relay 32-f prepares a circuit for the operation
suitable codé combinations may be employed to>`
of relay 29A and'forv maintaining itself operated
control these contacts.
which circuit becomes effective upon' the opera 75
For a more detailed description of typical
supply of tape between the reperforator II and
selector arrangements for’selectively closing con
tacts in response to received telegraph signals
transmitter I2 is"_reduced to some predetermined
minimum quantity at Which time contacts 48 are y
reference is made ' to United States Patents
2,120,235, ’granted Beattie etal. on June 14, 1938;
2,112,234, granted to Beattieget al. on March 29,
1938; and 2,154,547, granted to Walker on April
18, 1939, all of which patents are hereby made a
>In order for the transmitter I2 to transmit, an
operator or attendant closes switch '39 which
part of this application as if fully included herein.
power 38 through the winding of start magnet l4If>
completes an obvious circuit from a source of
which magnet releases the transmitter shaft 434
So long' as these contacts' are individually op- _
erated, as described above, the switching circuits 10 and permits the brush arm 46 to be rotated
through one revolution by’motor 42 through fric
controlled by them are not actuated. However,
tion clutch 44 in the well-known manner. Con
when a figures code combination is followed by an `
tacts -45 are controlled by the perforations of tape
H, code combination, the locking circuit of relay
I3, as is well understood by those skilledin the
32 and the operating circuit of relay 29 is inter
rupted, thus permitting these relays torelease.
Contacts I6 are opened in response to the recep
tion of the ñgures signal and remain open until
When ycontacts 48 open, as described above, the
circuit through thewinding of relay 3l will be
closed by a letters or _spacing signal. Contacts
interrupted. Consequently, relay 31 willv release.
I5 are momentarily opene'din response to the H
If no further signals have been received over line
signal so when the H signal follows a figures sig;
nal when no letters signal or spacing signal is
interposed between them the circuit of relays 29
and 32 is interrupted.
Relay 29 in releasing interrupts the operating
Illl by 'this time, a circuit will be completed by the
release of relay 31 fory the operation of relay 38
from battery through the winding of relay 30, the
break contacts of relay 3l, theleft-hand break
contacts of relay 3| to ground through the right
If additional signals are re 25 hand outer'break contacts of relay 2|.
Relay 38 lin operating completes a circuit for,>
ceived over line I0 following the ñgures and H
maintaining itself operated from battery throughy
code combinations, relay 28 will be maintained
its winding and left-hand operated contacts to
operated due to current ñowing through its Wind
ground through the left-handA break contacts'of
ing and its left-hand operated contacts to ground
through the spacing contact and armature of re 30 relay 3| and the right-hand outer break con
tacts of relay 2 I.
lay 20. As described above, relay 20 follows the
Relay 30 in operating removes negative bat
signals transmitted over line I0 and maintains
tery from the right~hand terminal of condenser
the circuit through its left-hand contacts closed
35 and grid of tube 34 and connects negative
for a sufficiently great proportion of time during
the reception 0f signals to maintain relay 28 op 35 battery to the filament of tube 34. The filament '
of vtube 34 is thereby energized but tube 34 will
not pass suñicient anode current to cause relay
The first signal following the figures and H
33 to operate at this time due to the high nega
signal which is not a letter signal will again com
tive potential of the right-hand terminal of con
plete a circuit for the operation of relay 32 from
battery through the winding of relay 32, the 40 denser 35. The constants of condenser 35, re
circuit of relay 28.
sistance 36, as well as the constants of tube 34 are
right-hand break contacts of relay 29, the
such that it requires an appreciable period of
momentarily operated contacts |8, contacts I1 to
time, say of the order of l5 seconds, for the high
ground through contacts I5 and I6 in parallel.
potential of the right-hand terminal of condenser
Relay 32 in operating again prepares the above
described circuit for the operation of relay 29 4.5 35 to discharge through the high resistance 36
sufliciently to permit sufficient anode current to
and for maintaining itself operated which circuit
becomes fully effective when contacts I8 open.
Thereafter, the circuit remains in the above de
scribed condition throughout the remainder of
the reception of message signals by the reperfora
tor I I.
If, however, no signals are received immediately
ñow through tube 34 to operate relay 33. A more
detailed description of the manner of operation
of the time measuring or time delay circuit of
50 this type is disclosed and the novel features
thereof claimed in a copending application of
Hopper, Serial No. 407,410, filed August 19, 1941,
now Patent No. 2,327,791, granted August 24,
following the figures signal and the subsequent
1943, which application is hereby made a part
H signal, the release of vrelay 29, as described
above, in response tothe reception of these two 55 of this present application as if fully included
code vcombinations interrupts the operating cir
The operation of relay 30 connects ground to
cuit of relay 28. _Under’these circumstances, the
armature ofrelay 22 which, in turn, reverses
armature of relay 20 will be maintained in its
the current flowing through the upper winding
right-hand position as shown in the drawing
where it interrupts the locking circuit of relay 28. 00 ofrelay 22 so that the current now flows from
battery 49 through resistance 50, the upper wind
Consequently, a short interval of time after the
ing of relay 22, and the left-hand contact and
release of relay 29, relay 28 will release. The re
armature of relay 22 to ground through the right
lease of relay 28 at this time interrupts the op»
erating circuit of relay 2|, thus permitting relay 65 hand inner break contacts of relay 2| and the
.right-hand inner operated contacts of relay 30.
2| to release. Relay 2| in releasing transfers the
This reversed current flowing through the upper
operating circuit of the selector magnet I9 from
winding of relay 22 tends to operate the arma
the contacts ofrelay I4 to the Contacts of re
ture of this relay to itsright-hand position but 1
lay 23.
is prevented from doing so by a current having
Thereafter, the circuits remain in the condition
described unless additional signals are received 70 a much greater effect flowing through the lower
winding of this relay. Prior to the operation of
over line >III in which case the circuits operate as
relay 30, battery was connected to the left-hand
described above. If the tape controlled trans
terminal of condenser' 24 through the lower
mitter I2 isv supplied with tape I3 from reperfo
winding of relay 22. Upon the operation of relay
rator II, transmitter I2 will generally continue to
transmit the signals stored in tape I3 until the 75 30, however,> ground is connected to the left-hand
long for the selector magnet _I9'I to"~ interpret this
termina of condenser 24 through lower ,winding`
of relay 22; Hence, condenser24 will discharge
interruption as a start signal. Thereafter, relay’
through the' lower winding'of relay 22 in such a
direction _as to maintain the armature of relay 22
23 completes a circuit for the selector magnet I9'
and maintains this circuit clo's'edsuñiciently long
inthe position shown in the drawing. The con-_
stants‘of condenser 24‘, Ythe resistance of the lower
winding of relay 22 and the constants of this
so that thev selector’ magnet I9A interprets the
following circuit closure asl 'a letters signal.
Thereafter, the above described operation is re-V
relay are such that itrequires an appreciable`
peated and a series of letters signals generated'
interval ofjtime before the discharged current
and suppliedt'o the selector magnet I9. _The
from> condenser 24 falls >to its su?liciently low 10 selector magnet I9 in responding to these >signals
causes the tape' I3 to be advancedythro’ugh the
value ‘to’ permit the Vreverse current flowing
through the upper winding of this relay to move
recording device I'I~ so'that the end ofthe nies-d
its armature to its right-hand position.
sage which was still within the reperforator il
When the armature> of relay' 22 moves to its
will be advanced out of this mechanism and
right-hand position, itrdisconnects ground from
through the transmitter I2. If for any reason
the signals generated byrelays 22 and 23 are
interpreted by `the> reperforating mechanism ,I i'
the' left-'hand contacts' of this relay' and thus ì
restores“ the current flowing through the` upper
windingÍo'f' this relay to its ‘normal direction,
as any signal other than a letters signal, a‘ci‘rcu'it
Wheref'this'current will tend to operate the relay
.will be completed for ythe operation' of' relay' 32
from battery through the winding of relay-_32, ther
tothe position shown’in the drawing. However,
at thisï‘tim'e; condenser 24 will start to charge to'
battery îpotei'iti'al through thelower winding of
relayr22. ‘The charging current of condenser 2d@
will produceoan‘eifect upon the armature of this
relay which overcomes the effect of the' current’
flowing through the upper winding of this relay
for an appreciable‘interval of time. When relay
22V finally operates >te its left-hand position the
above4 cycleof operations will be repeated. `
During the ‘interval of time the armature of
relay 22 remains in its right-hand position it
right-‘hand break contacts'of relay 29`to ground
through the‘universal contacts lIßand the letters'
contacts I1 -to ground through contacts I5 and
I6. This circuit is not k‘completed in response to
>letters signals received bythe selector magnet’
i9 during normal operation because the letters
contacts I1 opena short interval of time before
the universal contacts close and the universal'
contacts open a short interval _of time before the
contacts'` Ilíreclose. However, whenv any signal
other than- letters signals is received by the selec'-i
connects ground tothe left-hand winding Yof
tor magnet I9 at this time,V the above described'
terminal of the lower winding of relay 23.' APriorA
tothe operation or relay 22 to its right-hand
position, battery was connected to the left-hand
terminal of condenser 21 throughthe lower wind
ing of relay 23. Upon the connection of ground
to the left-har1d winding terminalA of the lower'
winding of relay 23, condenser 21 will start to
discharge through the lower winding of relay 23
circuit through the letterscontactsjand universal
contacts is completed forY the operationjof' relay
354 32 becausethe letters contacts will not open in
response to any signalsexcept letters signals,
Relay 32.A operates and upon the opening' of the
universal contacts I8 a circuitis completed' for
the' operation of relay 29’and for maintaining
relay 32 operated as described above. RelayI 29'
in'operating completes circuits> for the operation
and overcome the eliect of the current flowing
through‘the upper winding of this relay and op
of relays 28 and 2|, The Operation Of'relayA 2|
crate the armature of this relay to its left-hand
interrupts the localgeneration of letters signals>
position where it interrupts a circuit to the selec
and restores the circuits _to their normal or idleV
tor magnet ISÍ At a later interval of time, either 45 conditioninl the same manner as describedv heref
condenser will become suiiiciently discharged or
relay 2,2`will operate in the position‘shown in the
drawing, as described above.
When ground is
disconnected from the left-hand terminal of the'
lower winding of relay 23, condenser 21- will start
to charge to battery potential throughthis Wind
ing and cause relay 23 to be operated'to the p0n
sition shown in the drawing or maintainedin
this position if it was previously operated by the
in when ,signals are received during'the >automatic
generation of letters signals for advancinguthey
recording medium I3 through the- re'perforator I I'.
Thel operation of the` circuitsv in Y_generating
letters signals and causing'thev tapé I3 to be adé
vanccd out oi the reperforator I I continues under
normal conditions during theY discharge time >of
condenser 35, as described above; At the' v»end> Vof
the time interval measured by the ¿discharge cir
cuit of condenser 35_'and'_ tube 34, relay 33'will'
current flowing through the upper winding oi' 55
this relay when condenser 21 became sufliciently
operate and complete a circuit for the operation
disclfiarged.- This relay is then maintained in
of relay 3| ‘from’ batteryU to the> windingand
this position by current flowing through itsupper
right-hand break contacts vof'rela'yk 3l to‘__gr'ound
winding, as described above,
through the loperated contacts of relay 33.
The constants of relay 22, as well as the values 60
lIt frequently _'is desirable to extend the circuit
of'resistances 50 and 5I are so chosen that relay
from theA contacts of relay 33' through’an addi
22`r'emains in the position shown in the' drawing
tional interrupter to ground' or ythrough some-
for 'aV greater Aproportion of the time and is op-A
other switching circuits which contacts and cir
cuits are indicated bythe dotted lineextending
erated to its right-hand position for only a'sm'all
proportion of the time. Consequently, relay> 23" 65 betweenjthe armatureV of relay 33ïandigrou`nd."
interrupts a circuit of the selector magnet I9 for
When ground'is applied to lthis circuit, relay 3|
operates and completes a circuit'formaintaining'
only short intervals of time followed'by appre
ciable longer intervals of time duringrwhichV al
itself operated from battery'through itswinding
circuit oi the` selector` magnet is vclosed._ The
and right-hand operated" contacts tok ground
constants of condensers 24v and 21 andthe re 70 through ^ the" right-'hanèlibreak contacts ofi relay
2 I: The operationof relay 3`I also‘interrupts'both
sistances of the windings of relays 22 and 23
and the _adjustment of kthese relays, as well‘as
the opera-tingfand‘locking :circuits of relay 30'“, thus
permitting*relayf30v‘to release. `Thé` release'A of
the values of resistances 5,0 and 5I, are so se
y relay'3ll disconnects ground " from _the armature"
selector magnet >for" a‘ time ' interval” sufficiently' 75
' e
is restored to the‘position shown in theV drawing
ing the record medium through the receiving
and the armature of relay 23 operated to its right
Underother circumstances, it may be desirable
to cause the printing'mechanism to print some
hand position. The release of relay 30 also re
stores the circuit of condenser 35 andftube 34 to
their normal or idle condition. Thus, the. gener
predetermined speciñc character or symbol which
forms no part of any message when transmitted
ation of letters signals is interrupted and there
after the circuits remain inthe condition de-y
after messages `such as a period, dash, or any
other suitable letter or symbol, as will be readily
scribed above until. additional signals are received
apparent to those skilled in the art.l
If signals are received over'line I0 during the 10 Furthermore, the invention is not limited to
the employment of any particular time measur
time the letters signals are being generated, a
ing device as; disclosed in the specific embodiment
circuit for-the »operation of relay 32 is completed,
‘ of said invention and described herein. In addi
as described above, and relay 32 in operating pre
tion,v it may _be desirable to arrange the timing
pares a »circuit for the operation of Arelay 29 which
circuits of relay 22> so that they may be readily
relay roperates as described above and completes
adapted for use` in' cooperation withv receiving
a circuit for the operation of relay 2|. Relay 2I
reperforators operating at different speeds. For
in operating interrupts the operating and locking
thispurpose, the condenser 25 and switch 26 has
circuit of relay 30 and permits this relay to release
been included. l When the switch 26 is closed,
and interrupt the generation of letters signals and
, restore thecircuits and relays involved in the gen 20 condensers 24 and» 25 are connected in parallel,
thus further delaying the operation of relay 22
eration of the letters signals to theirnormal or
and _adapting a circuit arrangement including
idle condition. Inasmuch as the .selector lmecha
vthis relay and relay 23 Vto generate signals at a
nism of the reperforator I I may not be in its 4idle
lowerspeed than when switch 26 is open, as shown
or normal condition when these signals Aare re
ceived, it is desirable to precede the message by 25 in the drawing. ,
over line
What is claimed is:
one or more letters signals'to insure that-the
sage being received.
,1. In a telegraph system, av channel of tele
selector mechanism will be synchronized with the
incoming signals and be in condition to properly
respond to the ñrst code combination of themes
graphic transmissionfa recording instrument for
recording permutation code signals received over
said channel upon a recording medium, and ap
paratus for generating a plurality of predeter
mined code combinations for advancing said me
In case tape I3 is not supplied to a tape con
trolled transmitter I2 or in case it is desired to
detach it from the reperforator II and carry it to
some other transmitter, the operator or attendant
dium through said recording instrument and
means jointly responsive to received signals and
may wish to manually cause the reperforator II 35 to the demand for said record medium from said
recording‘instrument for conditioning for oper
to advance vthe tape„l3 through the mechanism
ation- said apparatus for ‘generating a plurality of
so that the entire message may be removed from
predetermined code combinations.
the machine. For this purpose, a 'key- 5l is pro
2.V In combination, a permutation code-receiv
vided which the operator may operate after a
ñgures H signal at the end of a message has been 40 -ing instrument for `perforating tape in accord
ance with received Vpermutation codes having a
received and, if n_o further signals are-_ received
selector magnet. for controlling said receiving in
at this time, the operation of key 51 `_serves the
strument, a local circuit for the operation of said
same purpose as the release of relay 31, as de
selector magnet, apparatus for> repeating received
signals to said local circuit, and other apparatus
for generating letters signals within said local
circuit, and means for interrupting the operation
of said apparatus for generating letters signals
upon the operation of said repeating apparatus.
3. In combination, a telegraph signal storing
scribed above, and causes the mechanism to auto- ‘
matically advance the record medium I3 through
the mechanism. At the end of the time interval
measured Áby condenser 35, resistance 36 and tube
34, the automatic generation of letters signals is
interrupted and the circuits restored to their idle
condition as described above.
The circuits of transmitter I2 may be arranged
device for storing signals in a medium, a circuit
to discard the additional letters signals perforated
local to said signal storing device for controlling
the operation of said signal storing device, appa
in tape I3, as is understood by those skilled in
ratus for repeating signals to said local circuit,
the art.
Details of suitable types of reperforating mech 55 means for generating predetermined signals in
said local circuit, and means responsive to signals
anisms are disclosed in United States Patents
in said local circuit other than said predeter
1,884,743, granted to Kleinschmidt on October 25,
mined signals for interrupting the operation of
1932; and 2,042,788, granted to Krum on June 2,
said means for generating predetermined signals.
It is also apparent to those skilled Yin the art 60
4. In combination, a telegraph printer for
that the mechanism II may comprise a printing
reperforator such as is described in United States
printing symbolson a record medium, a local
application as if fully included herein.
In case a printing reperforator is employed, it
is frequently desirable to arrange the printing and
perforating mechanisms and to select the signals
printer which signals cause no symbols to be
printed on said record medium,
5. In combination, a telegraph printer for
printing symbols on a record medium, a control
ling circuit local to said printer, a repeating de
vice for repeating message signals to said con
circuit local to said printer for controlling said
printer, a repeating device for repeating message
Patents 2,273,909 and 2,273,910, granted to Swan
on February 24, 1942; and 2,255,794, granted to
signals to said local circuit, apparatus for gen
Lake on September 16, 1941. All of the above 65 erating predetermined signals in said local cir
identified patents are hereby made a part of this
cuit for advancing said medium through said
generated for automatically advancing the record
medium through the mechanisms so that no
symbol or character is printed upon the record
trolling circuit, apparatus for generating non
medium by the mechanism in response to the
message signals in said controlling circuit for ad
signals generated by the local circuits for advanc
vancing said medium through said printer which
signals cause non-message symbols to be printed
on said medium,
10. In a telegraph system, a recording instru
mentV for recording'symb'ols in accordance with
telegraph signals on a record medium, equipment
6. In combination, a telegraph recording in
strument for recording message signals on‘a re
for _supplying telegraph signals'to said recording
cording medium, apparatus ‘for’ supplying a'plu
rality of non-message signals to saidrecording
instrument for advancing the recording medium
therethrough, and means responsive -'jointly to
predetermined signals and to the'demand'ior`said
record medium from -said"recordinginstrument
for initiating the operation of said"s‘tpparatu‘s’v4 for
instrument, apparatus for generating speciñed
telegraph signals for advancing said record me
dium through said recording instrument, an auto
matic telegraph'trafnsmitter controlled by' said
recorded signals, apparatus jointly'responsive 'to
predetermined signals and to the supply of lrecord
mediumV >betweenïsa'id recording instrument' and
supplying predeterminedv non-message" signals.
'sai`d"transmitter' for initiating the operationof
said apparatus for generating specified telegraph
7. 'In combination, 'a'telegraph recording in
strument for recording message' signal‘sfoiral re'
cording medium, apparatus ‘foi supplying a plu
rality of non-message' `signalsr to 'saidrecording “
instrument for advancing'the recording medium
therethroughy andmeans responsive'jointly` to
predetermined signals and to' manually'operable
switching means for'initiating the yoperation ’of
said apparatus 'for supplying predetermined non
‘ ~‘lll’ lIn combination, a telegraph printer Ifor
printing syr'nbol's`on a record medium, a' control
circuit'local to '_s'aid printerfa repeatingrdevice for
repeating 'message' signals to said'control circuit,
apparatus'f‘or" generating predetermined signals,
message signals.’
8. In combination, a telegraph receiving re
Aand means operating independent of said repeat
ing device for supplying said predetermined sig
n`als to said local '_circuit'ïfor advancing said lme
dium to said‘printer in response to" said prede
corder for recording telegraph ’signals'on'a re
termined signals which 'cause nol symbols to be
cording medium, la selector'magnet for controlling 25 pi'irite'd on said recording medium.
' '
said receiving recorder, a local circuitfincluding Y y ` _12'~ In combinationf’a telegraph receiving re
a winding of said selector magnet for controlling
said selectorV ?nagne'tfn apparatus for repeating
corder for recording telegraph' signals'on a re
cording' mediumja’selector'magnet for control
telegraph signals Vto said local circuit, and~ other
in said local circuit“ for advancing‘said'record
'lin'g'said receiving recorder, a Winding 'on' said
selector magnet,'a` local circuit including a Wind
ing on said selector magnet for'v controlling said
medium through 'said recorder.
sëlector’magnet and s_aidreceiving recorder, ap_
apparatus for rgenerating przedeterrninedv signals
paratus for' repeating` telegraph 'signals to said
9. In combination, a telegraph receiving re
corder for recording telegraph I~`sigrials0n a re
local- circuit, other apparatus *for generating pre- v
cording medium; a selector'm'ag'net'for control’
determined signals, equipment -for supplying said
predetermined signals te said local circuit for ad
ling said receiving recorder, a circuit local to and
including said selector magnet, apparatus for- re
peating telegraph signals tosaid 'circuit local Yto
said selector magnet, other apparatus "for gen
erating predetermined signals in said circuit local
to said selector magnet for advancing said record
‘van’cing thev recording medium- through said re
corder'in response toY said predetermined signals
supplied to said local circuit.'
’ "
’ ‘
Administrarr‘ir o_f the'
of Fuzrzertón' S.
medium through said recorder, timedel'aíy appa
ratus -for stopping said apparatus for generating
predetermined signals after operation thereof Vfer
`a specified interval of timef
’ '
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