US1707041A - Electric telegraph receiver - Google Patents

Electric telegraph receiver Download PDF

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Publication number
US1707041A
US1707041A US65308A US6530825A US1707041A US 1707041 A US1707041 A US 1707041A US 65308 A US65308 A US 65308A US 6530825 A US6530825 A US 6530825A US 1707041 A US1707041 A US 1707041A
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United States
Prior art keywords
translating
signal
dot
movement
drum
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Expired - Lifetime
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US65308A
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English (en)
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Berryman Thomas James
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Individual
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Individual
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L15/00—Apparatus or local circuits for transmitting or receiving dot-and-dash codes, e.g. Morse code
    • H04L15/24—Apparatus or circuits at the receiving end
    • H04L15/34—Apparatus for recording received coded signals after translation, e.g. as type-characters

Definitions

  • 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.
  • 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 ⁇
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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 is also 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.
  • 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.
  • 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
  • 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.
  • the main Yshaft 1 carries a drum 2 and a drum il.
  • 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.
  • the shaft l I provide an eecapement 4 (see also the detail in elevation Fin'.
  • 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.
  • 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.
  • 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.
  • 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 two steps may be obtained byadding an additional stepping magnetpthereby dispensing with the releasing mechanism shown at--Figp
  • the magnet 13 in addition to moving selective mechanism as described, also acts as a relay to operate the additional stepping magnet.
  • 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.
  • 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.
  • 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.
  • 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 ineans should be employed (electrical and (or) ⁇ -meclianical) to occupy t-he required time in bringing in or causing the second step and printing action.
  • the dash is translated bymeans of two steps or movements. This occurs in both forms shown.V
  • 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.
  • 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.
  • 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.
  • 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.
  • 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,
  • 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.
  • 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.
  • 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.
  • the member 3.0 is
  • Vthe lever arm 25 is .connected with the rod 1,35Qat '351by a balla-nd socket or equiv- 'ixie' 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.
  • 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.
  • 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.
  • 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,

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Electromagnets (AREA)
  • Toys (AREA)
  • Printers Characterized By Their Purpose (AREA)
  • Common Mechanisms (AREA)
US65308A 1924-11-17 1925-10-28 Electric telegraph receiver Expired - Lifetime US1707041A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5469/26A GB276387A (en) 1924-11-17 1924-11-17 Improvements in or relating to selecting mechanism for typeprinting telegraphy and other purposes

Publications (1)

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US1707041A true US1707041A (en) 1929-03-26

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US65308A Expired - Lifetime US1707041A (en) 1924-11-17 1925-10-28 Electric telegraph receiver

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US (1) US1707041A (enrdf_load_stackoverflow)
DE (1) DE498214C (enrdf_load_stackoverflow)
FR (1) FR607036A (enrdf_load_stackoverflow)
GB (2) GB249177A (enrdf_load_stackoverflow)
NL (1) NL18955C (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3885662A (en) * 1973-12-26 1975-05-27 Ibm Steerable follower selection mechanism

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE761948C (de) * 1940-04-10 1954-02-08 Siemens & Halske A G Durch Impulskombinationen, insbesondere telegrafische Impulskombinationen, gesteuerte Waehlereinrichtung zur Verbindungsherstellung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3885662A (en) * 1973-12-26 1975-05-27 Ibm Steerable follower selection mechanism
DE2460087A1 (de) * 1973-12-26 1975-07-10 Ibm Typentraeger-einstellvorrichtung fuer schreib- und aehnliche maschinen mit einem einzigen typentraeger

Also Published As

Publication number Publication date
FR607036A (fr) 1926-06-24
GB276387A (en) 1927-08-26
DE498214C (de) 1930-05-26
NL18955C (enrdf_load_stackoverflow)
GB249177A (en) 1926-03-17

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