US1707041A

US1707041A - Electric telegraph receiver

Info

Publication number: US1707041A
Application number: US65308A
Authority: US
Inventors: Berryman Thomas James
Original assignee: Individual
Current assignee: Individual
Priority date: 1924-11-17
Filing date: 1925-10-28
Publication date: 1929-03-26
Anticipated expiration: 1946-03-26
Also published as: GB249177A; FR607036A; DE498214C; NL18955C; GB276387A

Description

MarchA 26, 1929. T J, BERRYMAN 1,707,041

ELECTRI C TELEGRAPH RECEIVER March 26, 1929. T J BERRYMAN 1,707,041

ELEGTRI C TELEGRAPH RECEIVER Filed 001;. 28q 1925 5 Sheets-Sheet 2 I7 7 ORNE )25.

March 26, 1929. fT, 1 BERRYMAN 1,707,041

' ELECTRIC TELEGRAPH RECEIVER Filed Oct. 253, 1925 5 Sheets-Sheet 5 Patente-:l Mar. 26, 1929.

UNITED S'lATlS THOMAS JAMES BERRYMAN, A0F ARMAGH, IRELAND.

ELECTRIC TELEGRPII RECEIVER.

Application filed October 28, 1925, Serial No. 65,308, and in Great Britain November` 17, 1925.

rl "his invention relates to electric telegraph receivers and reiters to the class which are provided with means for translating the required message, or desired action at the receiving station, the message or action desired at the receiving station being selected by the sender at the transmitting station whereby messages, or communications, or operations, mechanical or otherwise, can be controlled or selected at the transmitting station and translated or carried into effect at the receiving station, the required action at the receiving' station being completed through mechanical means, or through magnetic means, or through the completing and y(or) breaking` oit electric contacts to effect the operation and (or) to arrest the operation ot other mechanism.

ccording to this invention the translating means at the` receivingstation is such that it is possible, Without confusion, to receive opposite signals, and signals of the same time value, in different .order` When employing Morse for transmission of roman letters, the signals vfor the letter A are the opposite of the signals for the letter N both having,r the same time value; again, the signals 'for l?) are the opposite ot the sieL nais .tor V, and, also, other signals in the Morse code are represented by opposites, so that, to avoid confusion and. to obtain the desired selection or storage and translation at the receiving station, the means provided at the receiving` station is adapted to have movement `given to it in the desired directions, with signal controlled escape ment means or guides, channels, pins or equivalent whereby opposite signals are di'fitcrentiated; iter example, an oscillatory or a rotary or turning' movement round a centre and an axial movement, the combination ot the said movements being employed to translate the received signals into the dei sircd cliiaractors, for example roman letters, or to translate the signals received into the operation oit mechanism according to predetermined combinations ot signals. lontrol ot movement of the translating; device, or devices, in the desired directions, and, ilZ desired, ot printing or recording means, may be eilected by magnetic, motor driven, suitably timed continuous or intermittent movenient in the desired direction ,or directions, or suitably controlled escapements or escapeinent actions I may, for example, pren4 vide a suitable type carrier, or striking arm, or `its equivalent, and ii'npart to it the re quired movement by providing,` oneor more electroanagnetic, pawl and ratchet or ratchet racl: arrangements, giving?r the required directional movements, working in conjunction with guides, channels, or pins, or their equivalent, or I may provide motor driven escapements operated by clectro-mag nets, or a combination of such means, so constructed and arranged as toV provide lfor storage translation and printing or recording` oi incoming messages in the desired characters, said means being also, preferably used to cut out, or start, the recording mechanism. The storage and translating,r mechanism may be adapted as control means to effect the control o'lf other mechanism either mechanically or by magnetic means, or through the completing and (or) breakinp; et electric circuits.

Incomingsignals may operate clutch mechanism or gearing to produce timed slidingand (or) turning motion, when required, from a suitable source ot power.

lVhere it is intended to receive and print messages transmitted in Morse code .l may provide two motor driven escaifiements controlling the movement, in the desired directions, ot a detachable type drum (detachable for change ol characters it desired and which might be used for (le-coding purposes) vvith a relay, or equivalent to operate a dot signal escapement or movement oit the printing drum in one direction and an electromagnet, or equivalent, to operate the dash signal escapement, or movement ot the printi ing drum in another direction. When a dot signal is received it operates the relay or equivalent and allows the dot signal escapement to impart movement, in the required direction, to the type drum. lt the dot signal is prolonged until it becomes a dash sin;- nal, the electromagnet is also operated and allows the second escapement to impart a second and different movement to the ty pc drum. The e'ilfect of this double movement oi. the type drum is such that when, say the letter B is received in Morse signals, the lett-ers E, T, N, D and Bpass, in turn, the lfninting position and printing only tal-ies place when the relay remains in spacing position long; enough to allow another, and slower, printing magnet or equivalent to bring' printing mechanism into action by the 'p or switches, vor to energize va tlie'printing magnet or equivalent may be used to move stops or pallets out of the escapenient wheel teeth of both cscapements, allowing forward movement until the desired stops are reached. The type drinn is then in Zero or starting position and the instrument is ready Vfor the reception of the signals corresponding to the next letter.

The following may be' given as examples ofv the operation ofswitches as described. A pin, or other projection, working in conjunction with the type drum, ifdesired, or working independently, if desired, would be 'so moved as vto act as a wiper contact, or so as to operate a Vpush button contact switch, slow acting electro-magnet switch, or equivalent, adjusted so as to act only at-predetermined positions of` the pin or other projection. Al ternatively,-;1 may provide a suitable shaft acting in conjunction with the type drum if desi-red, or actin-g independently if desired, the shaft being given movements in accordance with the invention, and carrying a member, for :the making and breaking ot' y electr-ie circuits, when, at the required time, an elect-romagnet, or. equivalen-t, presses the member against the required Contact or push pin, or equivalent, for the completing of the required electric circuit whereby any desired mechanism may be controlled as described. Means as descibed may be used to make, contacts to produce, through relays, or other driving means, selective movement of signal translating and printing mechanism i-n lieu oi", or in addition to, the Ameans hereinbefore described for this purpose.

The invention will now vbe described with reference to the accompanying drawings wl-iereon examples are given of how the invention ymay be carried into effect.

`Fig. v1 is a diagrammatic illustration, `in plan view, of a form of the invention adaptcd for oneescapement and to receive Morse and translate saine into roman letters, the printed message being obtained in roman letters, the message received by the apparatus being in Morse code. The apparatus shown isalso adapted for the operation'of switches,v etc. if required.

Fig. 1a is a diagrammatic view, in elevation, Vof an escapement mechanism which could be lused both asescapenient and pin control hereinafter described with reference 'to Fig. 1 and also of the escapement mechanisms 4 and 1l hereinafter described as einployed in connection with the apparatus Adescribed ywith reference to Fig. Other forms of escape-ments, or'escapeinent stops, may be lused as desired andthe orni shown `is only `used for illustration because it serves for use at all positions.

Fig. '2 is a diagrammatic illustration of means which may be employed for energizing the dot `operated magnet twice during the receiving of a dash signal.

Fig. 3 is a digrammatic illustration of a modified form ,of the invention.

Fig. 3 illustrates the developed plan of the translating cylinder shown in Fig. 3.

Fig. 3l illustrates the developed plan of the printing cylinder shown in Fig. 3.

Fig. l illustrati-rs to an enlarged .scale thc developed plan of a cylinder having guide channels, or equivalent, capable of rei-civing dot `and dash signals and translating the same into movements of the cylinder 3 (Fig. l) to bring the roman letters or numerals thereon into printing position and holding same there long enough for the printing,r action to take place. For the sake of simplicity, only the letters of the roman alphabet and numerals are shown in the examples given 'but it will be understood tha all the usual punctuation marks, signs, ctc. would be provided for in a similar manner and other additional signals provided for if necessary.

Fig. 4b shows on 'a similar enlarged scale a modification of Fig. 4 in which the channels are replaced by projections on the sui:- faceof the cylinder, the dot and dash pins in this case being replaced by members sliding on the profile projections on the cylinder.

Fig. 5 shows to an enlarged scale another modification in which a single pin working in conjunction with channels and projections produces the required translator-y movements of the type arrying drum. Spring and (or) other means would be proiided to keep the projections in contact' with the pin during translating action, and also to effectl the return to zero position.

Fig. '(5 is an illustration also to :in cnlarged scale of another modification of the translating cylinder, projectingr pins being used in place of the channels, or projections shown in the previous figures.

Fig. 7 shows a form of return guides for the selective cylinders illustrated :it Figs. l to G.

Fig. S is a diagrammatic representation of the operation of switches, by mcaus of the invention either for the purpose ot' ctfecting the operating ol other mechanism or for storage purposes.

Fig. 9 is an alternative arrangement to Fig. S and for the same purpose or purporrs.

Referring to the drawings In the example shown at Fig. l, the main Yshaft 1 carries a drum 2 and a drum il. the

drums

2 and 3 being com'iectcd together so that they move simultaneously and :my rotary or oscillating movement given to thi` drum 2 will produce an oscillatiinT or corresponding movement of the drum and, similarly, any axial movement given to the drum Htl lil?) lill 2 will also be given to the drum 3. Any axial movement of the sha'lt l produces a wrrosp'onding axial n'iovement oit the

drums

2 and 3. At the end l et the shaft l I provide an eecapement 4 (see also the detail in elevation Fin'. la) operated by an electro-magnet 5 and adapted to effect an axial stepping movement to the main shaft l by means of a crank G and connecting rod 7 which connected with the end oi the shaft 1.. by a universal joint connection 7 the sleeve 8 having` means to .prevent its turning: for example a pin 8L projectingY therefrom and working' in a Suitable slide 8l. The spacing oit the teeth on the eeeapement wheel il" such ae to produce the rctpiired number of steps (axially) ol the shaft l. Parallel with themain Shaft 1 :is ra secondary shalt 9 which has mounted at its end 9 an arm 10 carrying a lever 1,0@L to eauee the withdrawal oit one ot the pins L1 or escape` ments. The pins or Stops da are opera-ted by the eleetromagnet 5 and control through the eseapement et, axial movement olf the main Shaftv 1.y On the shaft 9 there is also secured an arm 10 carrying` lever to caueeV the witlulrawal of the controlling pin 12'". The pins 12V and 12" are controlled and operated by an eleetromagnet (not shown) and adapted to produce turning movements oi the

drums

2 and 3. The membere l0 and 1G are mounted on the yesame shaft 9 eo 'that when required, as, for example, when printing has taken place means may be provided for liftingl one of the pins or stops It and one of the control pins 12L or 12 clear in order to allow el' a quick return action of the translating` `drum 2 and the type drum l to the Zero or Starting position.

In. the example Shown in Fig. 3 there is also a secondary shaft 9 havingthe pin ac'- tion control members thereon. ln thiel ease also the action of the printing;4 magnet or equivalent ie used to move Stops or pallets out ol' the path of the ceci .pement wheel teeth ot both eseapements allowingforward movement uutil the desired stops 4l() and il are reached. rlhe type drum is then in the Zero or startingposition and the instrument ready for the reception oit the signals correeponding` to `the next letter. Une `of the stops namely lll in thie action applies to both the'example `:riven at Fig. l and the example given at" Figi: 3.

Figs. Ll and 6 illustrate dagraminatically the developed. plan views oil different formel ot trai'ielatinil cylinders tor `controllinr,Y the type drum 3 and adapted for use in apparaue euch as Shown at Fig. l. The type drum 3 in all casses shown has; its letters and numer-ale in the eamo relationehip `for the salie of .simplicity in description but it ie to be mideretood that these are only examples and that the signals received may vary with the requirements, also that the translating signale, whether produced in "the form of.

printedmessages, ortranelated into opera tion of meclianiem, may be modified to suit different requiremente Without departing; from the invention. The form olf tranelating cylinder used in the diagram Fig. i may be any of the forme illuetra'ted or any other .'torm. The translatingand printingmeanel are not necessarily of cylindrical form, they may be flat epherieal or of disc forni and their moven'iente. arranged. accordingly. 1When pins are used as in diagram Fie; o, a star wheel and jumper, or equivalent device ol known construction will require to he added in order to ensure step by etep turn# ing` movements of the druurand maintain `the row of type Selected in line with the striking;v hammer olf the printing` mechanism. rlhie jumper could be pivoted on an arm lnountedon the Shaft 9, and it would require y to be moved clear just as the pins or e'liope eaeapeinent stepping action, the dot magnet 5 requires to be operated 'to cause two etepe during a dash and once for a dot when translating llfioree signale into roman, lettere and numerals. This provision ie doeigned to .simplify the Selective action and prevent too many letters coming abreast on the type drum 3.

Where two eecapeinente are used ass shown at Fig. 3 it is not neccessary that the dot magnet 5 should be used twice ior a daeh as the eamo ell'eet ie obtained by allowi 5; the type drum 3, or ite equivalent, to turn through dillerent angles.

The mechanism lehown at Fig.V 2 `illusitratee diagrammatically how the dot map;- net 5 may be energized twice through the reception ot a dash signal.

The action of the apparatus shown diagrammatieally at Fie'. 2 ie ae followe:-

lVhen adaeh Signal is received `the dot n'iaglrnet 5 ie operzited and at the end ofthe stroke ot ite armature 5Ilm an extension 5 oli' the latter moves a member 11 caueingv.;l the latter to complete the Contact l5 so that el`eelrieity can tiow through the contact lo to the magnet 13 whereby its armature 13b ie moved and a spring extension 13 ie brought into action to hold the Contact 15 closed until the incomingT current is broken or reversed. Towards the end of Vthe stroke olf the armature 13" of the magnet 13 (the con- CII tact being held closed in ordernot to r'elease'the magnet 13) contact is'broken at 16 by means or' a-"catch'l1 and through the breaking of; the contact at 16 in this manner the inag'net' is' deenergized or released. At the end of the return stroke of the armature 5 ofthe magnet 5A the catch 13@ is so moved l ment of the translating means suitable re'- lease and spring return means would be provided. It desired, the two steps may be obtained byadding an additional stepping magnetpthereby dispensing with the releasing mechanism shown at--Figp In this case the magnet 13, in addition to moving selective mechanism as described,also acts as a relay to operate the additional stepping magnet. n y

It desired the magnet 13 may be used as a stepping magnet and when so used an arm attached tooiop'erated by the armature 13b of the lmagnet 13 `would be used to strike pins, or otherwise operate dash selective mechanism whilst the magnet 5 operates dot selective mechanism or magnet' towards the end of its armature stroke and insert the pin in guide channelsof Fig. 5. When two stepping magnets are used and provided with overthrow ystops means would be provided to Vlitt or remove the overthrow stop of the magnet 5 so as not to prevent the second stepping m-.ignet from acting.

- Thespeed at which this instrument will receive ordinary or time Morse depends on the time occupied or the interval of time between the first or dot step and the second step (dash), also the time occupied to bring inv printing action.

The instrument oughty to be adjnsted'so vrthat the second step will occur if signal is prolonged approximately twice dot length. The printing magnet ought'also to act at approximately twice dot duration in order 'to give tlierequisite time for the selective apparatus to return to zero. Suitable ineansshould be employed (electrical and (or) `-meclianical) to occupy t-he required time in bringing in or causing the second step and printing action.

` In ordinary Morse, the dash is translated bymeans of two steps or movements. This occurs in both forms shown.V If desired the dot'couldlbe translated by two or more steps and 'they number of steps for a dash signal .madrina seemingly; ni Single needn Morse or plus and minus Morse of uniform time duration a single step for cach signal wouldv suflice, and the translating means would be modified to suit such requirements. Modifications could be adopted to suit other codes.

All the instruments in a circuit may be adapted each to receive its call signal whilst working at a slow speed and when the call. signal is translated and received it will change the called instrument to work at high speed to receive the signalled message and when finished may revert automatically or otherwise to slow speed again. Means may be used to prevent the dot magnet acting or responding unless a marking signal is received which is slower or of longer duration than the high speed dash signal. This is to prevent the instrument operating except when the longer or slower call signals are received.

This avoids wear and tear of each instrument not required whilst other instruments are working at high speed. Speed reducing action may be obtained by mechanical or electroinagnet means. Space between words may be readily obtained by the closing or breaking of contacts by the printing incchanism at the end of the printing action. The printing striker, or hammer may be of any suitable orm and is not shown for thc sake of simplicity. It is essential that the printing striker or hammer should work with a piano-like action so as not to hold the type drum 3 in any way or prevent its return to zero when freed by the other mechanism as hereinbefore described. Diverting pins which are lifted outof guide channels, or equivalent, by printing action, or by the action of the printing magnet, would be held clear of the guide channels, or equivalent by means of a pivoted catch whilst a pin or equivalent carried by the main shaft 1 or placed in a suitable position would be used to strike the catch out of the way when the zero position is reached allowing the dot sclective pin to re-entcr the dot channel or otherwise act on the dot selective arrangement. Where one or two escapements are used and the selective guide channels, or pins, a` cam may be provided to remove the pivoted catch and ensure the return of the secondary shaft 9 to the zero position.

lVherc projecting guides, guide channels, or pins, such as illustrated at Figs. i to (l are used for the selective action, return guides 19 and 20 may, as shown` at Fig. 7, be provided in connection with the selective or translating drum 2. These guides follow the extreme diverting movement and they come together to form a narrow o )ening` or channel at the zero position. tuitable pivoted levers or stops 2l and 22 would preferably be used to prevent overthrow. A pin fixed on the 'main shaft 1 `quired direction.

action as described with reference to Fig. 2`

also moves the eeciipeinent Ll or its equivalent elec!roinagiietie stopping action to produce the step by step axial movement olf tlieniain slia't l as hereinboliore described. The inavnet 13 ,in addition llo itsfoperation described with reference to lig. Qoperates the i cylinder turningl mechanism. ln this ease the cylinder tui-ning` mechanism comprises the controlling or divertinpl pins l2 and l2 as that `when a dash signal is received the electromagnet, acting); on a rocking arm and in conjunction with suitable spring` means, causes the dot diverting pins 12 to be lifted clear oli the projections on the drum 2 and bringing,` the dash diverting pin 12b into action to turn thediuins `.Zand 3 in the re- The `dash diverting pin l2" may be li'tted out of `engagerriient With the projections on the drinn 2 `and the dot. diverting pin, acting),v on the drum 2 turnssaine in the desii'ed direction.` These nievenieiits ot the pins 12 and 12b are obtained by the operation `ot1 the magnet `13. Similai'ly, whentranslating channels are used ,in a d ruin, or projections or pins as shown in .the examples oit developed drums at Figad to G mechanism such as described and shown with reference to Fig. l can beused to insert the dash divertingfpin iii-the dash channels, at the saine time liftingthe dot diverting pin out olithe dot channel and vice versa. 'lt `Willbe understood that it is` not necessary that` the diverting. action should take place `every element or signal received. The dash magnet, may, for eX- ain ipile,fbc eiiergiL/ied-bnt not operated when a series of dots are being recorded.

li'l" desired the dot selective pins and the dash selective .pins il? G) `could be ai'- ranp'ed in tlii'eeidistinct groups (asshoivn) placed at diil'erent parts of the niainshatt. The channels, or equivalent, conldbesepaj rated in like manner but in two groups.d A

The essential elements and the manner o't operating the i apparatus liereinbetore desci'ibedivitliireliei'eiice toFig. 3 and given aneoiii'iple `ot carrying the invention in to etl'ect, might be `very brieliy stated `as tolloivs`:- g

There is a drinn caiifyinmisay roman letters and adapted 'for either rotational to 'allow selective action bylpermittingtlie` drum 2 to turn through different angles past the stops and thus give a correspond` ing,` rotational movement to the drum 3) be- `after the iist Asay the letter l, indicated iii ll'loriie by a dash `and `three dots, the actionis as tol'- lowsz g ll/Then the lfey oli lthe tiainsmittiiig,` instriinient put down it causes the dot escape* nient il to i'otatetlie drum 3 and brine; `on the letter E (a single dot). Un the key being" still held down the dash escapeinent ll fiets and rives an axial movement to 'the drum 3 and thus brings on the letter T (a single dash). Willen the key is again put doivn, the dot escapement produces further rotation of the drinn and brings on the letter N (a dash and a dot). Similarly tivo further depressions ot the lrey produce tivo further rotational movements oit the drum 3 bringing` on, in turn, the letter D and finally, the letter B. Thereafter there is a lslight piiiise, longl enough to allow a magnet (not shown) to actuate i.. striking` arm causing printing' and, siiiiultaneoiisly, the drinn 3 1s returned 'to its initial position, ready for the next letter.

Klis an example ot operating switches or the electrical operation ot niecliuiiisin through the .inediuni ol switches, l `have added a simple illustration ot how this ini gilt For simplicity l have added be carried out. it on the end ot the shaft l Fig. l. The shatt llias already been described as being given turning; and axial movements,.such inoveinei'its beine' obtained by selective apparatus from signals yreceived by' it. At the end l olf the shaft l a pinion 23 mounted or otljierivise, the contact member or `lever -25 is also moved with, it and as the nia-in shaft l rotates,or is turned,tlie pinion 23 correspondinggly moves the contact linger iio` main: shaft l. Vis moved axially, step by step,

25 laterally to the right or to the leittot the y quired and 'when the contactmember 25 is 4ineontactivith a particular cont act 2i the desired oiiieration o'tiinechanisin or the like Will be effected.

5 Pins or contact members carried by the main shaft l, and moving' therewith, may serve the saine purpose `:is the contact incinbei?` 525 and muy act on contacts ai'rai 'ed round the shaft l or on the inner surlate of a cylinder orin any suitable manner veffect't e desiredaction, electrical or mechanical or any 'combination thereof to ,fulfil the purposes of the signal receivedby .the apparatus andtranslated by itV into the desired record or action or bothrecord and action if desired.

- vIn Vtheexampleshown at'Fig.` 8, vthe

end

2,5 is Vshown as a leaf spring with a contact at'rits ends 25') and below same a movable Y member or-table 28l'controlled by an electromagnet 29 which maybe .operated in the` ksaine manner .as the striking hammer ofthe printing mechanism `or otherwise as may be desired. lVhen Vthe electromagnetf29 is operated itv raises the -table 28 and the cont-act causing the latter to lift'a sliding member 30' through a'fiXed-table 31 in order to causethe contact member 30 to close spring fcontact lswitch '32. lVhen the member 3.0 is

raisedasfdescribed .a spring 'catch k'33 engages a notch. .34 and :so maintains' the switch 32 closed luntil theV spring catch33 is moved s'id'eyvardlyr by suitable means whereupon `the ml'embfer30vwi'l'l 'be released and will return toA its original position brealingthe contact f -'Iheexample shownat Fig. 9 operates in n asimilar manner to the. example shown in FigQQS, vthe only 'dilieizence .being that the rod Bijtal'cesv the Place of the table `*28. In this case Vthe lever arm 25 is .connected with the rod 1,35Qat '351by a balla-nd socket or equiv- 'aient' connection. The rod 35 isconnected 2byga'ball .and socket or equivalent connec ment the'contacts"32"are r arrangedvin the i rvforrriof a portion of 5a sphere.- vBoth of the .arrangements shown'at Figs8'and`9 can be usedfor the storage of letters or signals 1for any desired purpose. 'The releasing va'c- Y. Y tion ofthe slidiug'catch '33 may eilccted Vf.automatically'on'the receiving of a particuflarv signal by aselectiveapparatus.

Y Having nowfully described'lily :invention lvhatl Claim Yanddesire to vsecure by Letters PatentfiS.: 3V Y y 3l. l In'electr'ic.signalling apparatus, 'means for directly and mechanically', translating Morsefcode signalscomprismg a translating A'dev'ice mounted `for. both axial and rotary l lmovement, means operated `by Ievery limpulse fafdaptedito act on' the translating device -to 'produce' one `kind voli `movement thereof,

Y `meansoperated by impulses of-one kind only VYadaptedtoactupon the 4translating device `to. produce the other Ekind'of movement` rthere- .,"of, and means for -retunning said translating device to its initial position at the 'end Y. of'each signal. i 1

" In electric signalling apparatus, means Vfor directly andfinecha-nically translating Morse. code signals *comprisingl a vtranslating said translating device, Aco-o y'the other si'nal operating device, selectively means operated by signal impulses adapted positively to move the translating device, twopins located close together and feo-operating with the guides on the translating device to actuate this selectively and means operated by the signal impulses for actuating said ins.

3. In Ve ectric signalling ap iaraus, means for directly and mechanically translating Morse code signals comprising a translating device mounted for both axial and rotary kmovement, a signal. operated device adapted v.amount of rotary motion of the translating device.

5. In electric signa-lling apparatus, means for directly and mechanically translating Morse code signals com is'ing a translating device mounted for lilith axial and rotary movement and lia-ving guide members thereon, a signal operated device adapted positively to impart axial movement to said translating device, a pair of -adjacently disposed pins (2o-operating with said guide vmembers `ada ted selectively -to vdetermine the amount o rotary motion of the translating device and signal operated means Ifor actuating said pins.

6. In electric signalling ap arat-us, means for directly and mechanically ytranslating Morse code signals com rising two signal operated devices adapte to operate d|iifer ently according to the value of each Morse impulse, a .translating device adapted to move 'in two directions, means actuated by one of said signal operated wdevices ada d :positively to impart movement in one directionto the said translating device, means on rating lwth to control, ye movement of :the translating device in the other direction, said translating device integrating the individual movements until the signal Iis complete and thereby y'at-taining a. particular position determined by the signal and .differing for eachof the `individual signals to be received and means for .returning the translating device :to .its initial position for the next signal. Vdevice having a series" of guides thereon,

7. In electric signallingapparatus, means lll tor directly and mechanically translating Morse code signals comprising` tivo signal operated devices adapted to operate dili'erently according,y to the value ot each Morse impulse, a translating` device adapted to move in tivo directions, means actuated by one et said signal o] erated devices adapted positively to impart movement in one direction to the nnid translating device, means on said translating` device (x0-operating with the other signal operating` device, selectively to control the movement ot the tranelating device in the other direction, said translatin?,` device integzgrating the individual movements until the sifcnal is complete and thereby attaining` :i particular' position determined by the si gn al and dideringl for each ot the individual signals to be received, a reproducing` device operated by und correspoiiding` to `the translating device adapted to bring` a distinguishing` mark corresponding to the signal into a. certain position on the co11'n )leti.on of each signal, means tor pnlntingl the f-ielccted mark when the latter is in position and means for returning` the translating and reproducing` devices to their initial position for the next signal.

8. In electric signallingj` apparatus, means for directly and mechanically translating Morse code signals con'nprising` two signal operated devices adapted to operzite dil'iiern ently according` to the value of cach lvl'orse impulse, a translatinp,l device adapted to nieve 1n tvvo d il'l'erent directlons, an escape ment `actuated by one signal operativi device,

positively to impart movement in one dircction to the said translating device, meansy cooperzrtingl with the other signal operated.

THUMAS JAMES lERRYh/IAN.