USRE5523E - Improvement in printing-telegraphs - Google Patents

Description

- .A ZShGetS-Sheetrl. F. l.r PURE & A; EDISON@ Printing"Te|eg'raphs.

jive. 45,523.1

4 VuiIIfM-IJ.i ll ITI c yIl:

. Inventum. l

` transmitting-operator.

. instruments.

UNr-.rED-f STATES;

PATENT OFFICE.

EEANIr L. POPE, OE ELIZABETH, ANDfrIrOMAsA. EDISON, OE NEWARK NEW .1ERsEY,'Ass1GNOEs, Er MEsNE AssiGNMENTs, 'ro THE COLD AND STOCK TEI-.EGEAPH COMPANY, OF NEW YORK CITY.

VlMPROVE-li/ IE'NT I N PRlNTING-TELEGRAPHS.

Specification forming'lart ot Letters Patent No. 10I,924.'d a.ted June'7,1870,' Reissue No. 5,523, dated i i a August 5, 1873 g' application filed June 19, 1873. Y

To aZZ whom it may coztcern.-

Bel it known that we, FRANK L. POPE, of

' Elizabeth, in the county of Union and State of New Jersey, and THoMAsA. EDISON, formerly of the' city and State of New York, now of N ewark, in the county of- Essex and State of New Jersey, have invented lImprovements in Printing-Telegraph@ of which the folloWingis a specification: The object of-.ths invention is to furnisha telegraphieinstru nient by means of which com- Iuunications may not only be recorded auto'- matically', in printed characters, at one or more dlstant'points, at the -pleasure of; the transmitting-operator, but by which this result'.

may be accomplished 'with greater certainty,

and in a much more simple mannexgthandoy the apparatus hitherto used for vthis purpose.

The principal features of this improvement :hay be stated as follows: First, 'to 4thepla'cing of the electro-magnet which rotates the typei j wheel .in the same electricalcircuit with a secson cut-off, and by meansof which any num ber of printing-telegraph instruments may be brought into correspondence With the ltrans- .lnitting instrument at thepleasure of the Fourth, to theuse of an velectro-magnetic Vswitch of peculiar construction, 'which is employed forthe' purpose of placing the unison cut-oft Vin circuit, and

` 'which may also be madeusefuil for other prposes in connection with printing-'telegraph Afeeding mechanism for printingtelegraph in! strnments. Sixth, to the placi-ng'ofcertain Fifth, 'to an' improvedpaper` ,Y duplicate figures or characters in a peculiar' position upon the type-whel, for purposes.

hereinafter specified. i e 4 The arrangement of thef, various parts of this invention will be more fully understood by reference to the accompanying d rawing,Y in which l i Figure 1 represents a pla-n viewof the receivin'g and recording apparatus. Fig. 2 is a side elevation of the sa 1e.- Fig. 3 is a sectional frontview'of a por yion of the apparatusvtaken through the line a: Fig. 2. Fig. 4 is fa detached front viewjsliowing' the device for "moving the paper forward beneath the typewheel. -Fig. 5 is a sectional View, showing the details of the unison cuto. Fig. 6 illustrates the manner in which numbers and fractions are printed by the apparatus. -a theoretical diagram .designed to show the electricalconnections of the various parts` of the apparatus and .their relations to Veach other, tained'.

{see-Figs. l and 2) designatesa metallicl frame or standard, which is fu'mly secured to the pedestal or base'b, and which serves as a support to the dif'erent portions of the receiving instrument. An electromagnet, C, is

secured, preferably in an uprightposition',` upon the lower portion of 'the frame A,-

and a second similar electro-magnet, D, is placed, in apreferably inverted position, upon the upper. portion of the said frame.

The armature o of the'electro-magnet Gis atta'lsed-to a lever, e, which moves upon pivots Le xed in the uppereXCmi-ty of"` the framA.. A pawl, F, Figs."lf, i2, `3, and 4,is pivoted a t a tol the'eross-head'Eat or near the end ofthe leverE. This pawl engages with .the teeth of a ratchetewheel, G, as shown in'F-ig. 3. The `ratchetyix l-G, vand also the 'type-wheel H, are mounte `upon a sleeve, j',

which revolves upon a stationary spindle, g, projecting from the standard I, which latter 'is supported by the frame' A.; This arrangement will be clearly understood by reference to Figs. 1, 2,and 3. f The eross-head'E' -Fig.

)3, is also provided withl a second pa'vsd,}li",'l

whereby the desired results are ob- 'any other sppi'table manner.-

whichfispivoted at a', and is provided at one end" with a hook, which acts upon the oppositelv side of the wheel G.' Astop, S, is pernlanientlysecured to the cross-h'eadEmid waybetween; the pawls 'F' and? F21 J The L1pawls and F' are kept in contactwithfthe face-of the wheel G by means of a spring, K, or in y referencto Fi 3 itWill-readily unf derstood that a downward Vmovement of the lever E and the cross-head Ef, caused by the attraction'of theelectro-magnet C, will cause the-pawl F to engagewith a toothV of the. ratchvetz-wheel G, and cause the latter lo rotate the l distance of half the depth of lthe toothinthedirection ofthe ari'ow, when its movement is arrested bythe stop S coming .between the 'teeth of thewheel G.y The pawl Ffhas meantime-passedone tooth of thewheet G, and when the leverj E returns to its former position it engages with the said toothand rotates "the wheel thedistance of `half thedepth 'of a tooth farther, when'its` motion is arrested'by 4tliestop'Jl VThus each movement ofthe levery vE,y iuboth directions, advances A the wheel G one tooth'. in the,` direction of the arrow, and

al1-'intermittent rotary motion is imparted vto. said wheel, G byf the vibrations of thev lever E' under the 'influence of the electromagnet C.

.- This intermittent rotarymotiorris imparted to] the sleevefand the type-Wheel H. The-ratchet-wheel G is provided with a number of teeth correspondingto the number of letters,tigu res, -orcharacte'rs upon the circumference of the type-wheel G,so that the latter may bebroughtA `to any desired position by `transmitting'the appropriate number of electrical pulsations ,through the electromagnet O, each vpulsation advancing the wheelG one tooth`,and the type-wheel. H one character, throughthe me- Y diam ofthe-armature c, lever E, and pawl F, ashereinbefore explained.: l Ihe electrical connections between the different portions of' the apparatus Vareonly par- Atilly seen in Figs.k 1 and 2, -but vare fully shown in Fig. 7, which will be hereafterexplained. n'

The apparatu'sfor taking the impression lof any desired letter,'whe n' the type-wheel lhas been brought to the proper. position, is con structedand-operates as follows; Underneath the electro-magnet D,Fig. 2, isa horizontal' lever, L, to which its armature d Ais attached. #This lever is capable of a slight vertical 1 motionupomthe pivotsl l. The.Y lever L passes ls-,tween'the helices of the electro-magnet C, and through an aperture-'in the standard I.

stlrip ot' .paper j j, Fig. 4passes-over the entremityof the lever L and underneath -the typewheel H. When the Yelectro-niagnet Dv becomes sufticientlyex'citedby the passage of theelectrical current its attractgtm will be ex-l erted 'upon the armature d, thereby raising the rver 'Ir-and bringing the Strip 0f Paper for" eblyfin contact 'with the` character upon vthe t pe-rrheeEwhich is overit at the tima; `The :liara'cters upon` the typeewheelhavinghecn previously'inked oy means ofan inking-roller or.`

other suitable device, an impression ofthe said character is made upon thepaper. Upon the cessation of the electricf current inthe 'coils of' the electro-magnet D'theleverLis drawn back to itsoriginal .position by means ofthe spring l.

The device for moving the lpaper forward afte;` each impression has been made is constructed Aand operates 'as' follows Upon the end of the lever L there is secured a slotted bar, M,

Figs. l, 2, and 4, which I noves vertically with said'lever L.' To the upper portion of this bar there isattached a feeder,- N, by means of adjustable set-screws o and o', which allow of its being secured at 'any desired point upon the bar M.' The-feeder N is placed in an inclined position, as shown in Fig. 4, its lower extremity being serrated or'.` provided with spurs q and resting upon the strip of paperjj,which at that point is supported by the bed-plate O. The feeder N is kept in contact with the papel* by means of a spiral spring, q. A second feeder, N', is attached in the same mannerto th'ef lower part of the barV M, so as to rest against the under side of the strip of paper at q', which paper passes underneath the plate O', `asshown in Figs."V A1, 2, and 4,.' lBy an inspection ofFig. 4 yit vwwillihe understoodthat when theleve'r L and its bar M descend, after an impression has been made, 'the lower Vend, of the' vfeeder N is thrust to-the left, andthe paper is pushed forward by its spurs q. When the lever L is again moved upward the feeder N in the 'sameimanner advances the paper still farther to the-left. By this arrangement the feeders N` and N maybe so adj usted that ai comparatively slightvertical movement of the leverL will causeaconsiderable horizontal movement ofthe strip of paper j j, andthe amount of .this 'movement may be regulated at pleasure by-altering the position .of the set screws o and o upon the-bar M.-

lIlh'e manner in which the several parts ofthe apparatus are electrically connected and operated 'will be'understood byireference to Fig. 7, which is a theoretical diagram showing the various -parts heretofore described, in relation to each-other and with their proper electrical con. nections.

In'Fig. 7, Q represents av-oltaicbatteryof,

any suitableconstructi'on, the positive and negative'pole'sot' said battery being distinguished inthe drawing by the signs-land P' is a key or circuit-breaker, which may be of any suitable construction. The batteryQ and key l?, it is to be understood, are situated at the transmittingstation. By means of the circuit- Vbreaker P a series of successivepulsati'ons may beqtransmitted through'the conducting-wires andthe electromagnets of the receiving apparatus. "Starting `from the positive Qpole ofthebattery Q, thecirc'uit may be traced tothe-amv'il lof the key..-P, lthence through' the clectromagnet R .-B, (for purposes hereinafter explained,) to the point 2; and thence to the point 3. ,From the point tothe point L two routes `are opento the current, one through the hel- -Whenthe-desired character 1 ices of the electro-magnetD andthe other -through the screw h and flat spring t. Thelatter route being much Vthe shortestand offering l-ittle or no resistance to the passage of the current, the electro-magnet D will not'beper.-

ceptibly affected by the passage of the current as long as the branch circuit through h andi?. lremains uninterrupted. AFrom the point t the current passes-through the helices of. the electro-magnet C- to the point 5, and thence b`y 6 and '7 to the other pole of the battery. Q.

AVilien the lever E is drawn down by the action of the electro-magnet C an insulated pi nyu, Fig. 7, strikes the spring t just before the movementof the former is arrested, and breaks the electrical contact between it andthe screw h.

The entire current is therefore. momentarily thrown through the helices of the electro-mag4 net -D at' each vibration of the lever E; but Vwhen these vibrations are performed with considerabl'e rapidity the electro-magnet'D isnot Vkept in circuit long enough` to become completely inaguetized. Wheu the circuitremains closed forV a longer time the electromag- ,net D becornes fullymagnetizedand"V attracts its armature d, thereby'raising thelever L and..

' toi-"stationed ata distant pointe-as, for example," at fl? (see Fig. 7)-'simply b'y-transmitY ting-the propernumber of eletrical'impulses `-vfshort duration by-means of a properly-constrncted circuit-breaker, which will cause the type-wheel Htc revolve without sensibly at'- fiec'ting'the .impression device.

brought'opposite theimpre'ssion-lever L the ,duration of the iinal current is prolonged, and the electro magnety D becomesfully magnetized, and 1re an impression of the letter or charsl r hereinbefore. described.

"l When a number of automatic printing-tele-I graph.' instruments are situated-at. diii'erent points and ope1ated. s i mnltaneousl y in one circuit, it is desirable;thatsome suitable means may be provided whereby the transmitting-operator ma y be enabled to bring the typefwheels ff'otfthe several receiving or recording instru- `1 ments into correspondenceatpleasure.

zis'eiected by the following'device: Upon the `sleeve f, which carries .thetype-Wheel H and. .atchctl'wheel G,'is secured, a collar, lv','] 3`igs. f2-, 5,V and 7.'. This collar is composed of some suitableinsulatingmaterial. We willhereob'- This servefthat inail .the'gures the non-conducting vnniteria'lerriployed to insulateone portion ofthe apparatus from another is represented iriblaclc.` A metallic spring, i, fixed uponan l.insulating support,'Figs. 5 and 7,\ presses.

gai'nst 'this collar as it revolves. A metallic pinpr stud, w, is inserted into the sleeve f, "passing through the insulatingcollar, as

pon the paper is produced inthe same shown in Figs. 5 and 7, in suchl a manne'ras to forni an electrical connection between the 4sleevef and the spring z whenever the pin or stud w is brought 'in contact with'said spring bythe revolution of the sleeve f. This ar vrangement is clearly shown in Figs. 5 and 7. By reference. to Fig. 7, inwhich the electrical' connections are shown in dotted lines, it, will be understood that this connection forms a short circuit between the point 2 and the point 5, cutting off nearly all the electric current from the electro-magnets C and D, andthereby arresting their action. This short circuit' may be brought into action at the pleasure of `the transmitting operator by? .means of the device nextdescribed. Figs. 3 and 7, designate the helices of a small electro-magnet, whose poles are shown at T1 and T2,'the opposite ends of the cores being screwed into the soft-iron bar T. A permanently magnetized steel bar, n s, is pivoted to the bar T at y, its opposite extren1ities being free to vibrate between the screws In consequence of a wellknownv law of magnetic action, when a current from the battery Q passes through the helices of the electro-magnet R R in one direction the south end s of the magnetbar n s will be attracted `by TI and repelledl by T, while a current in the opposite direction will produce the reverse e'tiect. One pole ofthe polarized bar n s. being in. magnetic contact with the mass of soft iron formedv by the bar T and its attaclh ments, its magnetism cannot be weakened or reversed, as is often the case with magnetf vized armatures which are not in magnetic.

contact with` the soft iron of the electro-inagnet. l

From this'explanation, and by reference to Fig. ,7, it will be readily understood that the transmitting operator, by employing the cir cuit-breaker P iusteadof P, can send a series of electrical pulsations through the ycircuit in thel opposite directiomwhich 'will cause the south ends of the bar n s to be deflected toward T1, so as to come in contact with the Stops'. f As it is a matter of indifferencein which direction the current passes through the electro-magnet C in order to operate it, the type- -wheelof each .instrument will continue to revolve by'its action, as usual, until the pin or stud *wV comes 'incontact with the spring i,

when ashort circuit will be formed from 2, Fig. 7, through 91,8, and z, to the metallicframe ofthe instrument,y and thence through sleeve f, pin yor stud w, and spring z', to the point 5, and thence by the usual route.I The principal part of the current will Vtake the shorter route, just described, and the action of the electromagnet C, and consequently, the movement `of the typewheel H, will be arrested. Each instrument inthe circuit will therefore stop automatically at the same point inthe revolution of the type-wheel H and sleeve f. When this has been accomplished the electric curthe apparatus proceeds as usual.

Y spondingly augmented'. V

It is obvious that letters as well as characrent is again reversed, and the operation of When the instrument, hreinbefore described is intended to be used for recording quotations `of markets, '&c.,4 wherein the amounts to be represented fluctuate by eighths of one per cent., three duplicate figures or characters arev placed upon the periphery of the type-wheel H in such a position as to impress themselves upon the strip of paper lower than the line of the other iigures or characters upon the Wheel, which may be used in combination with the ordinary numerals to indicate fractional quantities. The arrangement of these characters upon thetypewheel is shown in Fig. 1, and the manner in which theirimpressions upon the paper aie combined with those of the numerals to represent fractional `quantities is shown in Fig. 6. By means of this device the total number-of characters np,- on the typewheel may be considerably re duced, and the speed of transmission correters may be placed upon the type-wheel in a, different circumferential plane in Ythe same manner as theiigures just referred'to, and in such cases the letters, gures,or characters in the one circumferential plane would be opposite blank spaces in the other circumferential plane, and hence no two letters, figures, or characters would be in the same axial plane. This arrangement of letters, figures, or charactersv upon the type-wheel of a printing-telegraph we believe to benew.'

` No claim is made to an electro-magnet for operating. the type-wheel of a printing-tele graph instrument, in the same circuit @with the electro-magnet that actuates the printing mechanism; nor to -theuse of a device for bringing the transmitting and receiving ap-l paratus into unison from the transmitting-station, as this is shown in the patent granted to Charles Kirchoi, Apri-l lo, 1856, andalso in the patent granted to S. S. Laws, Jauuary25, 1870. 7' What ,is claimed as the invention of said' F. L.A Porn and T. A. .EDISON is 1. 1n a printing-telegraph instrument, the arrangement of two electro-magnets in the same electrical circuit, one bein employed toV rotate the typewheel and the ot er to actuate the printing mechanism, when the action of the latter is controlled by that of the former f by means of a branch or shortl circuit and a mechanical' cut- 0E, f or. its equivalent, constructedl and operated substantially as described. t

2. An improved cut-off, termed an'ele'ctrical-unison cut-01T, whereby, at a given point in printin'gmagnet during a v.thek re'v'olution otalratchet or type wheel, a-

`4 wsse shunt or branch circuit maybe brought. action, and the electricalcuirrent diveited from the electro-magnet controliing themovejment ofthe said ratchet ortype wheel, sot/liat the said movenientniay be arrested at.'A such given point, the saine being constructed and operated substantially asspeciiied.

3. .llie-electromagnet B1B and soft-iron bar T, in combination-with a vpolarizedsteel bar, n s, so arranged that'said steel barwill be in magnetic contact with the said soft-iron bar, substantially as herein specified.

4. The bar M, feeder N or N, spurs q or q', bed-plates O or O', combined, arranged, and

operating substantially as described, and for.

the purposes specified,

5. The combination of the-lever E, pawls F l and F', stops S and Jpand'ratchet-wheel G,

arranged and .operatipg substantially as def' and ratchet-wheel G, substantially as and for the purposes specitied.

7. rllhe electro-magnet R R', soft-iron bar T, and polarized-stes bar n s, iu combination with the spring i, insulated collar o, and .pin

vwheelthat fractions of numbers may be printf A* ed upon -the paper', thereby decreasing.' the number of characters upon the type-wheel and insuring great rapidity in recording, substantially as herein shown and described.

' 9. In a printiug-telegraph,a type-wheelprovided with letters, figures, or characters, which are arranged in two different lines around the periphery of said wheel, and in such manner that the said letters, igures or characters in 4the one line shall be opposite blank spaces in the other line, vsubstantially as herein specified. Y

10. A' printing-telegraph instrument with the: metallic-circuitot' the main line passing throughboth the type-wheel and the printing electro-magnets, in' combination with a shunt circuit or switch that operates to energize the pause after the type wheel has been set. i' Signed this'lth day ol" June, A. D. 1873.

p MARSHALL LEFFERTS,

President NORMAN C. MILLER, 4

y i Secrelary.

Witnessesr GEO; T. PINGKNEY,

OHAs, H; SMITH.

Vthe Gold and Stock Telegraph C0.

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