US877822A - Printing-telegraph. - Google Patents

Description

No. 877,822. PATENTED JAN. 28; 1908.. J.G.BARGLAY.

PRINTING TELEGRAPH.

APPLIOATION FILED JAN.11,1907.

2 SHEETS-SHEET '1.

WITNESSES:

"WW1 81M fl- MSKML ATTORN EY No. 877,822. PATENTED JAN. 28, 1908. J.O.BAROLAY.

PRINTING TELEGRAPH.

APPLICATION FILED 3111.11, 1907.

2 SHEETS-SfiEBT 2.

urn-IE [:III:

UNITED STATES PATENT OFFICE.

JOHN C. BARCLAY, OF NEW YORK,

PRINTING-TE LE GRAPH. I

i No. 877,822.

Specification of Letters Patent. Application 515.1 January 11. 1907. Serial No. asisss.

Patented Jan. '28, -1 908.

To all whom it may concern.-

Be it known that 1, JOHN C. BA CLAY, a

citizen of the United States, residing at N ew- York, inthe county of New Yorkand State of N ew'York, have invented certain new and.

useful Improvements in Printing-Telegra hs;

and I do hereby declare the followin to e a full, clear, and exact descri tion oft e same, such as will enable others s 'lled in the art to which it appertains to make and use the same.

My invention relates to improvements in printing telegraphs, and comprises a system of the synchronous class, wherein finger keys of a transmittinginstrument control, through synchronously-operated commutators or sunflowers at both the transmitting and receiving station, the several magnets of a receiving printer. This printer is preferably of the page-printing type, comprising a lurality of character magnets correspo'n ing respectively to different characters to be printed, each such magnet in a separate circu1t connected to a particular contact point or segment of the corresponding sunflower.

Printers of such type adapted for connection to and control by sunflowers in the manner described, are shown in my Patents No.-

787,608, dated Apr. 18, 1905,. and No. 811,995, dated February 6, 1906. The system herein described is particularly ada ted for relatively short lines, or lines in W ich the capacity and resistance are relatively small and for that reason sharply-defined distributing point with various cities or towns in the surrounding territory; and railway telegraph or block-signal service. plicity of the apparatus required, the ease with which it may be operated b y.anyperson familiarwith a typewrlter keyboard, and the relatively high speed of transmission obtainable as compared with ordinary hand or Morse transmission, also the legibility of the message as written out by the receiving instrument, render such a system particularly suitable for the kinds of service speciof the sun ower.

The simfied, a'swell as for many other kinds of service which it is hardly necessary to enumerate.

The object of my invention is to ermit direct transmission over a single circuit from a keyboard transmitter to a receiving printer,

in either direction at will, and by simple mechanism capable of relatively rapid operation.

I will now roceed to describe my invention with re erence to the accompanying drawin s, illustratingthe system diagrammatical y and also. certain apparatus convenient to use therein, and will t en point out the novel features in claims.

In said drawings--Figure-1 is a diagram showing the circuits of the system. Fig. 2 is a top view of the sunflower mechanism and associated arts. Fig. 3 is a detail side view Fig. 4 is a detail side-view of the stop mechanism. Fig. 5 is a detail side view of the 'escapement mechanism.

Fig. 6 isa detail-elevation of the s -nchronizing mechanism. Fig. 7 isa detai view of a mechanical ole changer which may be used in lieu of t e commutator shown for that purpose in Fi s. 1 and 2.

Referring rst to Fig. 1, I have showna system comprising two stations, land 2,

connected by a single line wire 3; each station having a'full equipment of transmitting and receiving apparatus; The apparatus at both stationsbeing the same, it 1s necessary to describe that at one station only.

4 designates the transmitting keyboard diagrammatically. It comprises a plurality of finger keys corresponding to the several characters, symbols'etc. to be transmitted, each Keyboards of this ty eare well known, and it is not necessary to illustrate the detail construction of the device. contact is connected by a conductor'5 to a corresponding segment of the transmitting sunflower 6 at its home station, and also to a corresponding control or character magnet? of the home receiving printer. I have employed these-character magnets} as a diagrammatic designation of the receiving printers, in Fig. 1; it being understood, of course, that the mechanism of the printer may be anything suitable to be controlled by a series of ma nets, such as shown.

key operating an individual contact device.

Each finger key Referring now- 0th to Fig. 1 and to'the rei maining' figures, and particularly to Fig. 2,

sunflower 6 is operated by a driving shaft 8,

driven'by a suitable motor 9 through an ordinary slip-permitting friction drive 10, the detail construction of which it is not deemed necessary to show, as such devices are well known. On said shaft 8 is a contact brush 11 adapted to sweep over the segments 12 of the sunflower sucessively as the shaft revolves. On said shaft 8 there is also 'a ratchet wheel 13, arranged to be engaged by the stop-armature 14 of a stop-magnet 15 1 10 and thereby to arrestthe rotation of shaft to rotate promptly, upon the release of" ratchetwheel 13 by armature 14 following denergiZatiGn of magnet 15, which occurs whenever the finger-key contact connected to that sunflower contact upon which the.

brush 11 stops is broken. I Shaft 8, when rotating, drives a polechanging device 16 connected to the line cirso Q and therethrough to the o crating magnet 17v of an escapement mec anism of the apparatus at the receiving end of the line.

The form of pole changing device which I have illustrated diagrammatically in Figs. 1

5 and 2 com rises the familiar c'ommutator having brus es 18 connected to sources of current of different polarity, respectively,

and riding upon contacthubs 19 connected to alternate peripheral sections of the commutator disk, 20, with which sections a brush 7 21 makes contact as the commutator disk 20 revolves."

In Fig. 11 have. illustrated, as 'sources of 4. -c'urrentof opposite polarity, op osed batter;v

ies 22; but

do not limit myse f to anypar' ticular source of current. Brush 21 is'connected to line 3 througha switch 23, and when said switch is in the; position shown at station 1 Fig. 1, and when-the corresponding switch at the other station is in the op posite position',.will obviousl send an alternating current through the 'ne, while-shaft 8 revolves; and since thecontact segments of sunflower 6 and commutator 20 correspond,

there will obviously be a change of line polarity for each passage'of brush 11 over a sunflower se ment.

1 Since t e maintenance of synchronism between the transmitting and receiving instruments depends upon thefaithful operation of the-escapement mechanism of the receivin instrument, 'it is preferable, instead of.

fo lowing the obvious course of lacing the escapement magnets 17in the 'necircuit .65 3 itself, to control said escapem'entmagnets pulses which is for the purpose.

by local circuits operated by sensitive re lays placed in the hue circuit. Thereby the sharp response of the escapement mechanism to rapidly-recurring alternations in the 1 line circuit is facilitated, and'like'wise the 6 line circuit is freed of unnecessary'resistance and retardation, for the relays used may have much less resistance and retardation than the esca ement magnets. Numerals 24, in Fig. 1, esignate the said relays, in the line -5 circuit as shown, and controlling escapement magnets 17 through local circuits 25' and arran ed to reverse polarity therein as polarity in t e line circuit changes. I I

In this system, as in ordinary ticker sy'sg0 te'msgdistinction is made between those linev current pulses which are merely tooperate I,

the escapement mechanismof the receivin printer and so advance'the sunflower brush 11 of" the receiving printer, and {those line 85,;

current pulses whic are to cause the printing of a character, 'prolongingthe printing one by arresting 'momen-' tarily the brush of the transmitting sunflower while it is in contact-with the sunflowersegment corresponding Ito the finger key depressed. In ticker systems, rinting is efe'cted by means of-these pro onged pulses,

-by'm'e'ansof apress arm 0 erated by a magnet in the line circutwhic is too-sluggish to respond to 'ordinary .current. pulses, and respondsonly to the prolonged uses intendedv to effect the operation of sai press arm and the prlntingflof characters." Such a press 'arm and sluggish press magnet are too slow,

in operation, requirei too much current, and

place too much resistance and retardation in V the line, for use in my system. Instead I use a' delicate relay, termed a separator relay, at eachstatlon, Numerals'26 desig nate'thesaid separatorrelays. Like'the escapemont magnets 17, they are in the'local circuits controlled by line relays 24.]. -Without limiti n myself to any, particular construction 'o separator relay, I have illus m trated diagrammatically a relay having anarrangement of contact points convenient- The same comprises a ,T- headed armature '27 carrying contact springs 28 and '29 adapted to make. contact respectivelywith stop screws 30 and31. Contact is complete'from screw 30 to screw 31 only during the instant when, as the armature 27 moves across, both springs are in contact with their respective screws; and the adjust- 12( 'ment" of the relay-is such that, this can'o'ccur only when a prolonged pulse has'operated' relay 24 and caused the latter to prolong the pulsein'local circuit 25.;

The adjustment of a separator relay such 2. as that shown, so that it will not respond to short pulses, but only to ion pulses, is quite easy; and such a relay wil distinguish between ulses the difference in duration of which is relatively small-Q 13 The separator relays I commonly place in the common return circuit 32 of'the several character magnets-7 of the printers, arrange ing said relays to complete said printer return circuit onlywhen a long pulse is trans-- mitted. 33, in the same return circuit, may be understood to be a magnet, of the printer, which must be energized, as well as one of the character magnets 7,, in order that a character may be printed. In the particular rinting telegraph sh0Wn in my said Patent 0. 787,608, this magnet 33 may be understood to be'the clutch or spacing magnet of the machine without the energization of which nocharacter will be printed.- turn circuit-'32 I'commonly place a switch 34,

, by'm'eansof' which the return circuit may be broken. By opening or closing this switch, the transmitting operator may cause the printer at his station to operate in unison with the-printer at the receiving station, and

so to print the message transmitted, or not,,

as he desires. "In synchronous systems such as this,- it is usually: necessary to provide some means for synchronizing the apparatus at the two' ends of the line, at intervals. It

may happenfor example, that owing to a' swing, of. the line mm or other disturbance, one or more of the pulses roduced by this endJI' provide t any finger keys.

the transmitting apparatus will e lost so far as the receiving applaratu-s is concerned. To

eapparatus at-bo'th ends of'the line withsynchronizin inprinciple is the same as that commonly used on tickers, comprising a worm 35von the shaft 8, an arm 36having a projection adapted to engage said worm, said arm pivote so that when said-projectionengages theworm and the worm revolves the arm will bemoved to the leftof Fig. 6, and a magnet 37, the armature 38 of which, when attracted by said magnet, moves arm 36 away from said worm 35, causing it to be pulled back to the right by its spring 39. To

bring the applara'tus at the two ends of the line into sync ronisin the operator whose apparatus is behind that ,of'the other operator,

sets his switches, 23 and 34- for transmission, and causes'his. transmitting apparatus to transmit through the line a long series of short alternations which he'may do by allow-..

ing the shaft 8 to rotate without depressing Thereby the'worms 35 of both transmittinga paratusare caused to revolve and move t eir respective arms 36 to the left until said arms encounterthe rojections 40 and so sto shafts 8.- The shaft 0 .theinstrument at the distant end of the line will obviously-be arrested'fir st, and then, as soonasthe shaft of the apparatus which is then-transmitting is i also arrested, the ,pulse then being transmitted through the line is prolonged owingto the stoppin of shaft 8,"andthis operates tt magnet 37'of th instruments-causing"said In this same remeans which the rotation oft e'ir' magnets to Withdraw their arms 36 and so to permit the shafts 8 'to revolve again, Projections 40 of shafts, 8 being in corresponding positions,- and the shafts having there fore been arrested in corresponding positions and being released simultaneously, synchrohism is restored upon the release of the shaft just specified.

The operation of the system is as follows: The operator at one station, for example station-1, desiring to transmit to-the operator at theotherstation, will signal the latter by his hand key to start his motor 9. The operator. desiring to transmit -will likewise start his motor; and after a sufficient interval to allow the two apparatus to be brought into synchronism in the manner above described, the transmitting operator depresses the finger keys of his key-board in the proper order to print the desired message. Each 'finger key when depressed closes a circuit; from battery 41 (Fig. 1) to the correspond ing segment of its sunflower 6; and as soon as the brush 11 of that sunflower reaches such with the correspondingbrush of the transmitting instrument.

as described, the alternations in the line cease and thereby shaft 8 of the receiving instrument also comes to rest, whereupon a circuit is completed from the battery 41 of the receiving instrument through the sunflower brush 11.of that instrument, the sunflower segment' withwhich that brush is. in contact at the moment and the magnet? thus selected to the commonreturn conductor As soon as the shaft 8 of the transmitting instrument comes to rest,

32, the magnet 33 and the contacts of the separator relay 26. While the shaft of the receiving instrument has been rotating -cir cuits completed through magnets 7 have been completed for too brief a time for the return circuit to be closed through the contacts of separator relay 26, but the line pulse being'now prolonged owing to the momen- 'tar stoppage oftransmitting shaft 8, the contact mechanism of separator relay 26 completes the return circuit through 'magnets 7 and 33-causing the printer to operate and print a character. .Assoon as the finger key which was" depressedhas been released, the circuit of stop magnet 15'=will be-broken and both shafts 8 will begin'to rotate again in unison.

shown in Figs. 1 and 2,

It will be obvious that ii? the switch 34 of the transmitting instrument be closed, both printers will be operated. in the. manner described, both printing the message transmitted.

In the-above description, and. in the fol? lowing claims,'1 have used the terms sunflower and sunflower distributer, as terms generic to any type of distributing commutator comprising a rotating member adapted to complete a plurality of contacts successively; and I have used the term character magnets as denoting magnets corresponding to particular characters and adapted when energized to cause the printing of such characters (for example, the magnets-24 of my Patent No. 787,608) instead of magnets which, by cooperation with other similar magnets, operate selecting mechanism to bring one or another of the characters to be printed into printing position.

Inv lieu of the commutator pole changer I may use the alternative construction shown in Fi 7 comprising an electro-magnetic pole changer 41 (that shown being what is known as a walking beam pole changer) in a circuit controlled by contact points 42 and 43, arranged to be separated and contacted alternately by a cam 44 onxthem-ain shaft 8 of the transmitter.

What I claim is 1.. A printing telegraph comprising in combination transmitting means including p'ulsatory current producing means arrange to produce periodic current pulses in a line and means for prolonging at will .any one of such pulses; a line circuit; and; receiving means including a plurality of charactermagnets corresponding each to -a different character, and corresponding in number to the characters to be printed, one or another of said magnets adapted singly to cause the printing of anyone of such characters, a sunflower selector comprising contacts for the diilerent character magnets, and a separator relay controlled by the line circuit and controlling the circuits through said sunflower to the severalcharacter magnets and arranged when 'ormrated by a prolonged ulse to cause the character magnet in circuit at that instant through thesunflower to operate, i

2. A printing telegraph comprising in combination transmitting means including pulsatory-currentprod ucing means arranged to produce periodic current pulses in a line,

and a key board and means operated thereby for prolonging at will any one of said pulses; a line circuit; and receiving means including a pluralityof character magnets corresponding each to a diflerent' character, and corresponding in number to the characters to be rinted, one or another of said magnets adapted singly to cause the printing of any comprising contacts for one of such characters, comprising contacts for the different character'magnets, and a separator relay controlled by the line circuit and controlling the circuits through said sunflower to the several character magnets ated by a prolongedpulse to cause the character magnet in circuit at that instant through the sunflower to operate.

3-. A printing telegraph comprising in combination transmitting means comprising a pole changer. and controllin means, arranged at will to arrest said po e changer; a line circuit to which said pole changer is connected; and receiving means including, a plurality of character magnets corresponding each to a different character, and corresponding in number to the characters to be a sunflower selector 7 printed, one or another of said magnets" adapted singly to cause the printing of any one of such characters,

a sunflower selector the different charactermagnets, and a separator relay controlled by the line circuit controlling the.

circuits through said sunflower to the several character ma nets-and arranged when 0 erated by a pro onged pulse to cause the c aracter magnet in circuit at that instant through the sunflower to operate.

,4, printing telegraph comprising in combination transmitting means including a pole changer, a key board and means operated thereby for arresting said pole changer at will, and prolonging the current pulse produced thereby at the instant of such arrest;- a line circuit; and receiving means including a pluralityof character magnets corresponding each character, and corresponding in number'to the characters to be printed, one or another of said magnets adapted singly to cause the printing of any one of such characters, a sunflower selector com rism contacts for the different character magnets, and a separator relay controlled by the line circuit and controlling the circuits through' said sunflower to the several character magnets and arto a different I ranged when operated by a prolonged pulse-M to cause the character magnet in circuit at that instant through the sun flower to operate. 5. A printing telegraph comprising in combination transmitting means including a sunflower, and controlling devices corresponding to different characters to be printed and connected to different contacts of said sunflower, means chronism with the operation of said sunflower arranged to produce periodic, current pulses in a line circuit, and meanscausing the operation of any one .of saidcontrolling devices to effect prolongation of the corresponding current pulse; a line circuit; and

receiving means including character-magnets corresponding each and corresponding in number to the charoperated in syn-.

to a diiferent character 6. A'piinting telegraph comprising in com- I bination transmitting means including a suntion of any one of said controlling devices to flower, a key board having character-contacts connected to diflerent contacts of said sunflower, and arrest1ng=means arranged to arrest said sunflower and controlled by said sunflower contacts and character contacts,

whereby when a character contact and the and arranged when operated by a prolonged,

pulse to cause the character magnet selected at that instant by said receiving sunflower to operate.

[7. A printing telegraph comprising in combination transmitting means including a sunflower and controlling devices corre sponding to different characters to be printed and connected to diflerent contacts of said sunflower, means operated in'synchronism with the operation of said sunflower ar-- ranged to produce periodic current pulses in a llne circuit, and means causing the operaeflect prolongation of the corresponding current pulses; allne circuit; and receiving means including character-magnets corre- 'sponding each to adiflerent character and corresponding in number to the characters to .be printed, a sunflowerselector operated in synchronism with said transmitter sunflower and comprising contacts for the dif ferent character magnets, and aseparator relay controlled by the line circuit and controlling the' circuits through said receiving sunflower and character magnets and ar ranged when 0 erated by a prolon ed pulse to cause thedharaeter magnet selected at that instant by said rece ving sunflower to operate, said receiving means it further comprising electro-magnetic synchronizing means operated by current pulses in said line J circuit i'or maintaining synchronism'of the receiving sunflowerwith the transmitting sunflower.

S. A printing telegraph comprising in combination transmitting means including a sunflower and controlling devices corresponding to different characters to be printed and connected to difl'erentcontacts of said sunflower, and a pole changeroperated in synchronism with the o eration of said sunflower arranged to pro uceperiodic current pulses in a line circuit, and means causing the operation of any one of said controlling devices to efl'ect prolongation of the corresponding current pulse; a line circuit; and, receiving means including charactermagnets corresponding each to a difle'rent character and corresponding in number to the characters to be printed, a sunflower selector operated in synchronism with saidtransmitter sunflower and comprising contacts for the different character magnets, and a separator relay controlled by the line circuit and controlling the circuits through said receiving sunflower and charactermag--' nets and arranged when operated by a prolonged pulse to cause the character magnet selected at that instant-by said receiving sunflower tooperate. i 9. A printing telegraph comprising in combination transmitting means including a sunflower, a key board having character con-' tacts connected to different contacts of said sunflower, arresting means arranged to arrest said sunflower and controlled by said sunflower contacts andcharacter contacts, whereby when character contacts and cor: responding sunflower contacts are closed, said sunflower is arrested, and-a pole changer, operated in synchronism with the operation of said sunflower arranged to produce periodic current pulses in line circuit, and :i'neans causing the operation of any one of said controlling devices to effect prolongation of the corresponding current pulse; a line circuit; and receiving means including charactermagnets corresponding each to a diflerent character and corresponding in number to the characters to be printed, a sunflower selector operated in synchronism with said transmit-ting sunflower and coinprising contaets for the-different character magnets, and a separator relay controlled by. the line circuit and controlling the circuits through said receiving sunflower and character mag nets and arranged when operated by a prolonged ulse to cause the character magnet selected at that instant by said receiving sunflower-to operate. i

10; A printin telegraph comprising in combination a fine clrcuit and 'COmblI1ed transmitting and receiving means at each end combination a each to a difi'erent character and correspond-' in innumber to'the characters to be printed, a ey board havingk character contacts, a sunflower having c aracter contacts each corresponding to and connected to oneof said character magnets and one of said keyboard character-contacts, pulsator -c11 rrent pro-'- ducing means operated sync ronously with the sunflower, pulse-prolonging means con-- trolled by. the several character contacts, anda separator relay controlled by the line circuit and controlling the circuits through said receiving sunflower and character magnets.

1 1; A printing telegraph comprising in ine circuit and combined transmitting and receiving means-ateach end thereof and each comprising printing means including character magnets corre-- spondingeach to a different character and corresponding in number to the characters to be printed, a key board havingcharacter contacts, a sunflower having character contacts-each corresponding to and connected to one of said character'magnets and one of said key board character-contacts, pulsatorycurrent producing means operated s chro nously with the sunflower, pulse-pro ongingmeans controlled by the several character contacts, and a separator relay controlled by the line circuit and controlling the circuits through said receiving sunflower and character magnets, and means forsynchronizing the sunflower 12. A printing telegraph comprisin in' combination a in transmitting and receiving means at each end thereof and each comprisingprinting means ecircuit and combined including character magnets corresponding each to a diflerent character and corres ondingiin number to the characters to be prmted, a ey board havin vcharactercontacts, a sunflower having 0 aracter' contacts each corres onding to and connected to one of said 0 iaracter magnets and one of said key board character-contacts, pulsatory-current producing means operated synchronously with the sunflower, pul'serolonging means controlled by the several'c aracter-contacts,v

a separatorrela controlled by the line cir-- cuit and'contro ing the circuits through said receiving sunflower and character magnets,

erases: I

and electromagnetic synchronizing means operated by the currentpulses in saidline circuit for maintaining synchronismof the said sunflower,

13. ;A printing telegraph comprising in I combination: a' e circuit, and vcombined transmitting and receiving means at each end' thereo means including character magnets corresponding to adifler'ent'characterand corre- 'sponding' in number to the characters to be "printed, at key hoard having character con'-' tacts, a sunflower having character contacts and each comprising printingv each corresponding to and connected toone ofsaid-character magnets and one-ofsaidkey board character-contacts, pulsatory current .iproducing eineans. operated synchronous y with the sunflower, pulse-pro,

longing means controlled by' the several character-contacts, and 'a separator relay controlled by the line circuit and comprising an armature and contacts closed only during the movement thereof, controlling the circuit through said sunflower and character magnets.

14. A printing telegraph comprising 'in combination a e c rcuit and combined transmittin and receiving means at each end thereo and each comprising printing means including character magnets correspending each to adifferent character and corresponding in number to the characters to be printed, a key board having character contacts, a sunflowerjhaving character contacts each corresponding to and connected to one 'of said 'key board character-contacts," pulsatory-current producing means oper-.

'ated synchronously with the sunflower, pulseprolonging means controlled-by the several character contacts, a separatorrelay con-- JOHN (J. BAROLAY.' Witnesses:

: C. A. VAN BRUNT, Bgs'rnm.

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