US110675A - Improvement in printing-telegraphs - Google Patents

Description

3 Sheets-Sheet G. M. PHELPS. Printing Telegraph.

Patented Jan. 3, 1871.

3 Sheets- Sheet 2.

No. 110,675. Patented Jan. 3,1871.

5 3 Sheets-Sheet 3. G. M. PHELPS.

Printing Telegraph.

No. 110,675. vPatented Jan. 3, 18.71".'

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GEORGE M. PHELrs, OEEEOQKEYN, NEW nenn, AssrGNoE fro WE-STEEN UNLON TELEGRAPHCQMBANHOF NEW YORK-CITY- To all 'whom @it may. www

i .Be it .known that SIlQGeQaGE. BHEMLPS, 0f Brooklyn., E- 1)-,l inthe QQUHX Of Killgs and State eli-New Yerlslhavefinvented:and `made au lmnrovementinriutinefelegraphs i andthefollawiug isdelared te bewerte@ description thereofz' -Telegraphs have. heretetoreben made in which one line-Wire has'beeu used to move the type-Wheel by Pomati-911s Qieleetriity 0f ,one polarity,` andthe impression has been f given by reversing the polarity. l In otl1er inl stances. two Wires yhave `been employed-v-one tu Set'the type-wheel, the other t0 girethe impressloln My invention, as distinguished from fau other telegraphs, relates tothe use of two lline- Wires operating tWo e lectro magnets, that move'the type-Wheel throughltlie'action of an escapement, said magnets being charged al ternately for operating thesaid escapement.

The printing is veffected. by the action of vv.electro-magnets, with sectional helices soar ranged in `,connection` with the two main vlines that the reversal ofthe currentin either main line ygives the impression; `and the transmitting-instrument isf, employed thatauwmatiy ally reverses the 'ourrentnpon either of the l main-, linew-wires ,when thegivendetter has,

been brought to its place.' v

The successive features ot construction` and operation -are hereafter, setforth in order.

In the i drew-ines the ltypefwhls @ed me. nets ,l are shown in Fig-ure l, th.6bed ofthe apparatus being inl section at the "line y :/,Fi g.

2, a general plan in Fig. .2, the V bed of the transmitter being broken open, and in. Fig. 34

a vertical section isshown `ofthe transmifttin ginstrument. l Figg 4c is. a sectional plan :below the line Fig. l.

Receiving portion of the. instrument:l The tion. The armaturen hangs onthe axis 2, (supported by the frame or-bed 01,) and from ysaid axis extend4 the esapement .armsand pallets 3l and 4:, ivhich yarefuedge"shape"and act. uren-theme14@wheel e 'tb 'more that fwd ,itsshaft 5 `'and ,type-Wheel one" division each vibration of the escapement, as irivn'i'y 'patent of hwg-22,186.9; I,

1 It iste be understood that there are vhalt arefdiyisions in 'the type-:fwhee ,dand ence bythe '.rnagnet a, finoves't'he ltyp e'fnrheelfone division, and the reverse motion o ftlie'ar-v mature @moves the type- Wheel the next divis- The typefwheel dis loose on its shaft 5, but

an en, 6l. 011 the Sh'af'fellfe Shop; against WhichHt-he type-Wheel is brought by'aspring, 7, This makes themachinework Inoreffreely, because thejinertia of starting the type- Wheel islessened, the spring yielding, but bringing ,the type-wheel to thestop-.ami before fthe printing takes place.

Afpawl, 8, and ratchet- Wheel c? prevent any backlmotion tothettype-Wheel.

horseshoemagnet f is hung on centers 9, and

the poles are between theiseetional ooi-lelectrmagnetslg and h.

Efach magnet g orh` is `made of two separate coils or helices, the Wire from the helix-'ofthe magnet a leading, as shown, through the sections l() of the magnets gll.,.andthei`wire from the magnetb leadingthrough the sections 11 of the: magnets t(jlb, thesewires ultimately reach the ground-connectionfrom 12,v`a`s'hereafter described. '4

If la positive current pass through Veither a Yor b,'kthetmagnet fwill be attraoted,say to the magnet g, becausel both magnets gulp-will be so charged that their respective'poles'will attract jor repel,l and henee the magnet f will remain in the .normal 'posicion'show-bn if theL cnrrentvpassing through a or b is reyersed, so as to be a negative current,th e p oljes ofthe magnets 4g and h will both be'rewfer'sem'and .hence'themagnetf will be moyed toward the magnet It, and there held until .the polarity is againwohanged.

An Varm from themagnet f operates'the bent lever Ic, that swings upon theaxis 15, and carries the impression-rollend at oneV `end.` The connecting-pin 16, betweenthe arm of the mag- The , thepoints 20 2l.

2 EEO,675

netf and thelever 7c, is in slots in the respective parts, and `is adjustable, being. clamped to one ofthe parts, so that the movement of the roller i can be regulated with accuracy, it being necessary for operations y hereafter named that the `paper which intervcnes between the impression-roller and type-wheel should not remain in contact with the said type-wheel, but the impression will be given by the momentum carrying the roller i andj-paper into contact with the type, and then the former will fall away, leaving the type-'wheel free to be rotated even when the magnet h is holding the roller t' and paper toward the type-wheel.

The paper passes below atinger, 17, and is fed along between the rollersz' and 1S, the latter being upon a spring-arm, 14, that is pressed toward the roller t'.

The spring-pawl 19 gives rotation to the roller t', to feed the paper as said roller z' is moved away from the type-wheel. Transmitting portion of the instrument: A circular bed, l, is provided upon columns Z', and the finger keys m n are in concentric or parallel arcs of circles, in two or more rows. l have shown three of those rows, and the letters, characters, or spaces of these are to correspond with thoseof the type-wheel d.

The central shaft o is revolved by friction from the ljy-wheeloI and gearing p, that connects with the horizontal shaft p and a crank.

Upon the shafto is an escapement-wheel, o2, with the saine number of teeth as the wheel e, and this, in revolving, gives vibration to the swinging lever r, and alternately closes and breaks the circuits, through the line-wires a b', to the magnets ct b, the points 20 and 21 acting as the circuit-closers. The connection from these points 20 and 2l to the wires may be of any desired character. l have shown the insulated springs 22 and 23 as bearing upon the-insulatedmblocks of the levera', that carry The spring r and supporting-block are also insulated, and rare con nected to one pole of the battery, as hereafter set forth. 4

From the binding-screw c the metallic connection is by the wire 25, spring 26, insulated tongue 27 on the lever s, points 28 29, spring and block s', also insulated and connected to the block and spring rf, so that a positive current will be sent by either of the line-wires a bto the respective magnets of the receivinginstrument.

Upon the sleeve that carries the wheel o1 is also a wheel, o3, with ratchet-teeth corresponding in numberrto the characters and spaces upon the type-wheel d, and said sleeve also carries an arm or arms, t. The finger-keys m n are made with vertical sliding pins, and are kept up by springs m3 a3. The arm f revolves beneath the lower ends of these pins, and when one is depressed the arm t, coming in contact, stops the motion of the arm t, sleeve, and wheels o2 03; but the shaft o'continues to revolve, the frictional connection allowing thereof. 4

If the finger-keys were arranged in a circle, then only one arm, t, would berequired, and

the arrangementof the characters of the type-` wheel and those of the keys corresponding.

Then the type-wheel and wheels o2 o3 revolvi Ying` synchronously, in consequence of the pulsations of electricity that incite the magnets, the type of the wheels would be in position when the arm t was arrested by the corresponding key, and the transmission of further pulsations stopped; but in consequence of the linger-keys being arranged within a half-circle, .the arm t is double, one end acting with 4the outer half-circle of linger-keys, and the other end being shorter, so as to act with the inner range or ranges of keys. The positioning of these finger-keys and stop-pinsproperly in relation to the characters on the typewheel can be effected by a skilled mechanic.

This arrangement of finger-keys is much more convenient than they would be if in a circle or in a straight line, because they are contiguous to the ends of the fingers, and wit-hin a range easily spanned by thengers of one hand. y,

The wheel u is driven continuously by a pinion, u1, on the upper end ot' the shaft o, and acts, by a friction at its underside, to press the detent-arm 30 toward the teeth of the wheel o3; but the inclines of said teeth constantly'prcss back said detent while the wheels o2 o3 and arm t are revolving; but when they are stopped the friction of u carries the detcnt 30 into the teeth of o3, and taking a stud, o, upon the insulated lever s, and moving that sufficiently to separate 28 and 29 after connecting 31 and 32, so that without giving a separate pulsation at the receiving-station the polarity of the current is changed through either of the magnetsaJ or b, causing thehorseshoe-magnetfto be moved, and effect thc printing, as aforesaid. After the detent 30 has connected 31 and 32 the electricity passes from the negative pole Z through the wire 34, spring 35, and insulator-tongue 36 on the lcver s.

In order to set the type-wheel at the distant station, or several type-wheels at various receiving-stations, in harmony with the transmitting-instrument, the key nl is pressed down, which, by the slide a2, moves the lever s, to make the negative connection with Z through 3l 32, and the instrumentis run, as before, and the distant type wheel or wheels are rcvolved until stopped by the arm 6, (the impression-roller being held toward the typewheel by the negative current,) and when sufficient pulsations have been sent to insure the proper position of ali the type-Wheels, the blank key m1 is depressed, which arrests the arm t at the point that is in harmony with the position ot' the type-wheels. The key nl is then released, leaving the instruments in their normal condition.

When the instrument is used for sendinga communication the lever w is in the position shown in Fig. 2, so that the negative` poleZ the binding-screw and ground, or when the nega-tive current is sent to the distant station the positive pole c is connected to the ground through the wire 25, yspring 26, tongue 27, spring 40, block 44, stud 42, lever to, spring wire .43, to the binding-screw G, thence to the ground.

When the machine is set to take a message the lever w is to be changed to the position shown in Fig. 2 by dotted lines, in which case the lever w will be disconnected from the stud 42, and in metallic contact by the spring 46, with the wires 47 and 48y that pass from the magnets gh and a b, the current going through the lever/w to the spring w, wire 43, and binding-screw G.

I claim as my inventionl. Two magnets operated alternately through two line-wires, in combination with the armatures, escapement, type-wheel, and printing mechanism, substantially as and for the purposes set forth.

2. A magnet constructed in two sections or coils, and charged by pulsations over one of two linewires,and operating upon an arma- Iture to eect the printing, substantially as set orth.

3. The combination of the horseshoe-magnet, printing-lever actuated thereby, and the two electro-magnets and circuits for moving the said horseshoe-magnet, substantially as Set forth.

4. The combination of electro-magnets,hav ing sectional coils, two line-wires, and mechanism for setting the type-wheel, with mechanism for giving an impression by an armature operated by said sectional coil electro magnets, substantially as specified.

5. T wo electro-magnets, operated through separate line-wires to set the type-wheel, in combination with an electro-magnet, operated by the reversal of the electrical current to give the impression, substantially as specified.

6. An impression-lever in which the pressure-pad gives the impression by the momentum, and moves away from the type, 1n com bination with a stop on 'the impression-lever 10. The circuit-closers operated alternately,0

substantially asspecified, in combination with two line-wires and receiving mechanism, substantially as set forth. ll. The automatic detent, operated by friction, in combination with the current changes or switches for changing the vpolarity ofv the current, substantially as specified.

12. rlhe nger-keyml, combined with the current-changing switches, substantially as and for the purposes speciied.

13. rllhe arrangement, substantially as specified, ofthe circuit-closing mechanism and connections, so that the ground connection is automatically made with either polarity of the current by the movement of the levers, substan tially as set forth.

14. The lever w, in combination with the receiving and transmitting connections, arranged, substantially as specified, to adapt the device to forwarding or to receiving messages.

i Signed this 23d day of July, A. D. 1870.

' Gr. M. PHELPS. Witnesses:

HAROLD SERRELL, GHAs. H. SMITH.

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