US875410A - Printing-telegraph receiver. - Google Patents

Description

No. 875,410. PATENTED 11110. 31, 1907. J; HURRY.

PRINTING TELEGRAPH RECEIVER.

APPLIOATION FILED NOV. 19, 1904. RENEWED SEPT. 16, 1907.

5 SHEETS-SHEET 1.

PATENTED DEC. 31, 1907.

J. .BURRY.

PRINTING TELEGRAPH RECEIVER.

APPLIUATION FILED NOV.19,,1904. RENEWED SEPT. 16, L907.

5 SHEETS-SHEET 2v No. 875,410. PATENTED DBO. 31, 1907 J. BURRY.

ERINTING TELEGRAPH RECEIVER.

APPLICATION FILED NOV.19, 15 304 RENEWED SEPT. 16. 1907.

5 SHEETSS HEET 3 HI 'HIH I [n venlor PATENTED DEOQSl, 1907.

J, BURRY. PRINTING TELEGRAPH RECEIVER. APPLIUATION FILED NOV. 19, 1904. RENEWED SEPT. 16, 1907.

5 SHBETSSHEET 4.

3 a a a. V A.

i E w EATENTED DEC. 31, 1907.

J. BURRY. NTING TELEGRAPH RECEIVER.

APPLIOATION' YIL ED H0119, 1904. RENEWED SBP'I .16,1907.

a sEETssHE'ET 5.

Z V. .M. A j 7. i? .s m

' paratus of this character wiich shall be Ser. No. 25

UNITE sre'r s st r es, I

JOHN BURRY, OF RIDGEFIELD PARK, NEW JEnsEY. ranrrrire-rnnseaasn RECEIVER.

Application filed November 19.

To all whom it may concern: 1 Be it known that I, JOHN,BURRY, a citizen of the United States, residing at Ridgefield Park, in the county of Bergen, State of New Jersey, have invented certain new and useful- Improvements in Printing-Telegraph Re: ceivers, of which the following is a specification, reference being had to the drawing accompanying and forming part of the same.

My invention relates to receiving or printing a paratus for type-telegraph systems, and asfor its object to rovide an apsimple in construction and yet positive and rapid in operation.

It is designed especially for. use in connection with transmitting or sending devices which employ aplurality of transmission or main circuits, over which are'sent current impulses of the same or different polarity, simultaneously or in different orders of succession. Such a transmitter is described and. claimed in my 'copending application 217,570, filed July 21, 1904.

The present invention in its preferred form involves the use of a plurality of magnets, energized preferably by a local circuit con trolled by suitable relays which are operated by the current sent from the transmitter,

which magnets select the proper character.

and effect the printing of the same on the impression surface. The types or characters are carried on a wheel, rotated by suitable magnets until engaged by one of a plurality of stops, which is thrown out by one or more of the selecting ma nets. The wheel is thus brought to rest wit 1 the pro er character at'the printin posit-ion. T e selec-- tion of the proper character depends upon the polarity and livered over the transmission circuits, and

upon their order of succession." Thus, withv two circuits, by varying the strength, polarity and order of theimpulses, no less than forty-eight distinct combinations may be obtained, which may readily be utilized to select as-niany diiferent characters in the printing devices.

Referring now to the drawings for a more complete explanation of the preferred form of my invention, Figure -1 isa diagram illustrating the same combined with a suitable transmitter. Fig. 2.is.a front elevation of the'receiver, Fig. 3' is a rear elevation of the lee vertical cross sectional same; Fig. 4

Specification of Letters Patent.

stats 4, 5. strength of the impulses de.

- Patented. Dec. 31, 1907.

1904. Serial No- 233.484. Renewed September {L907- Serial No- 392,976.

view, through the center of Fig. 3. Fig. 5 is a detail view of the devices for making the impression on the printing surface, in the positions which they occupy immediately after an impression has been made. Fig. 6 is a section on line VI.VI, of Fig. :5, showing one of the feed rollers for feeding the rinting tape, and the guide for' deiivering t thereto. Fi 7 is a detail view of the feed rollers, showmg the same in side and end elevation. Fig. 8 is a detail view of the ty e wheel, showing the enlargement thereof Fy the lever which shifts the wheel ion itudinally of its axis, to bring the various circular rows of types or dies to the impression point.

Fig. 9 is a detail of the mechanism for efiecting the longitudinal movement of thetype wheel. Fig. 10 shows a portion of the print ing tape, as embossed by the feed rollers for the purpose of permitting only the impres sion of the selected type or die to be made. Fig. 11 is a detail of the devices for controlling the rotation of-the type wheel, viewed from therear' of thetapparatus. Fig. 12 is a central cross section of Fig. 11. Fig. 13 is a front view of the devices shown in F ig. 11,

and Fig. 14 is a diagram illustrating the prinoiple of the disks which select, the stops for controliing the rotation of the type-wheel.

Referring for the present more particularly to Fig 1, which shows diagrammatically the transmitter described in my above. men

tioned application,zlet 1 represent a source 'under' the said strips respectively, and arranged when depressed to raise the stri s'off their terminal stops. The strips 11 an 6 by engagement with their terminal stops short. clrcu t resistances 24 and 25 respectively,

while with each of the remaining strips there is associated a contact terminal connected to one of the two line or one of the three local clrcuits respeotively,-, as be more e tape fully described. Following now the connec tions from the battery 1 as they normally egrist when the apparatus is out of action, it will be seen that the path from one pole of the battery divides between resistances 4 and -5. From the former it further di'vides'to each line circuit, while a similaroperation of keys 17- and 19 sends impulses of opposite direction. through these circuits. The path for such currents however, is normally through the strip 6 in circuit 2 and strip 11 in circuit 3, which shunt. the resistances 24 and 25 respectively, but if simultaneously with the depression of the, keys which send such impulses, keys 15 or 20 be depressed,

the'r path for the currents'will be through. said resistances, and hence the currents will be correspondingly weakened. Thus, it will be seen that by the depression ofkeys' 15, 1 6, 17, 18 and 19 and 20, in proper groups,

any .one of sixteen combinations of weak, strong, positive or negative impulses of curmagnet 36.

rent may be sent over the two lines, 2 and 3.

,The numerals 34, 35 and 3,6 designate three relay magnets em loyed for varying the time relations of t e im ulses trans. mitted by the above describec' means over the two line circuits. Magnets 34 and 35 have each two armatures, one quick acting,

the other sluggish, this difference-being se cured by varying the mass of the armature, or the sensitiveness of their retractile spri n s or otherwisev The magnet 36 has a sing e quick acting armature.

The magnets 34, 35 and 36 are energized by a local battery 37, through circuit eonnections controlled by keys 21, 22 and 23 respectively, and operate to direct the weak or strong impulses through one circuit in advance of, subsequently to, or simultaneousl with the impulse in t e other circuit, as wi 1 be understood by the following description of the operation of theinstrument.

Assume that a strong impulse of current in a direction which we may call positive, is to be sent through both lines simultaneously. Keys 16, .18 and 23 will be depressed. The closing of key 23 directs the current from battery 37, through wires 38 and 39 and the by engagement with its the circuits 2 and 3,

these two circuits stops 41 and 42, hence as by keys 16 and 18, each will receive an impulse of strong current of a given direction.

1 weaken the current impulse,

Its armatureAO is attracted and simultaneously closes a break in each of been connected with the main battery contact 27, strips 7 and 6, wire 54, wire 2, down the right hand. wire 2, through the receiver, up left hand wire 2, contact 41, wire 41, strip 8 at key 17, stop 64, and back to the left hand side of the battery 1; in circuit 3, 3 the current flows from battery 1, resistanee 5, strip 29, strip 9, wire 40 armature 40 and its contact 12, down right hand wire 3,

through the" receiver, up left hand wire 3,-

wire 3", armature 52, wire 53, strip 11 at key 20, contact 64 and strip 10 at key 19, and

back tothe battery; Assume, however, that while each circuit is to receive the same impulse as in the-preceding illustration, that in.

circuit 2 is to precede that in circuit 3. Keys 16 and 18 and 22 willtherefore be depressed. The last named key closes the circuit of magnet 35, which first attracts its sensitive armature 113 that closes a break in circuit 2, and.

then sluggish armature 44 which closes a similar break in circuit 3. The'1mpulse in the iirst named circuit will therefore precede that in the other,

I As another illustration, assume that a weak impulse of given direction in circuit 2- is to follow a strong impulse of the same direction in circuit 3. Key 15. will be depressed to throw in resistance .24. Key 16 to send a positive impulse in circuit 2; key 18 to send a strong impulse in circuit 3, and key 21 to operate magnet 34 to close the break incircuit 3 in advance of that in circuit 2.

' If in any of the illustrations given the key 17 or 19 had been closed in lieu of key 16 or 18, the current would have been-directed through the respective circuits in an opposite direction.

Further description of the operation of the instrument would be superfluous in view 'of what now appears, that each key has its spe ios cial function, which it always performs when depressed. That is to say, keys -15 and 20,

whatever its di rection, byinterposing a resistance in the circuits, keys 16 and 18 seiid impulses in. a

given direction over the two circuits respectively, while keys 17 and 19 send impulses in an opposite direction over their respective circuits- So likewise key pulses in the two circuits to flow at substantially the same instant of time; key 22 causes the impulse in circuit 2 toprecede that in circuit. 3, and key 21 reverses this order of succession. By depressing, therefore, at -least three, or at most five, of the keys simultaneously, any of. forty eight dill'erent combinations of impulses may be transmitted to the receiving apparatus. I

As the lines are normally open at the transmitting cnd,

23 causes the-iinor at both ends through the transmitter, if the system be equipped with a into two brought in -fore throw the arr" 47, 48, with.

- i fi ls trolled, 'hy

3, for example,

ove lie u To accomplish this the circuits out magnet with an insi c the receiver a cutving a pivotal armature 52 ction which dividcsit 3ontact points are fined if too nrrnnturo, as shown. i lion shown in the figure, circuit 2., 2, is closed through the wire 2 the left hand iure 52, and wire 2 Circuit rough wire 3, e right hand turc 5", surly "3". The

in. ttcry 37 is one of the 52'is attractcircuit.

keys or 23, the r. ed opens both sl circuits with the trinisnii 53 154, us will be readily 1n each of ti e taro end is a polarized r impulse whether i the receiving A positive oz. strong will there- .-.irc orviluotiug tongue over to one side in Contact with the stop on that side, willie iinegative impulse will throw. soul in: the opposite side. In'each olsaid also a neutral relay,

two miniatures oiWlilleront deecs of sonsitivenoss, or their equivalents.

or 6X;LIl'lplG, E32t6ll mug, int isprovided with an armature huffing1icomparetivoly weal; retractile spring, so,..ti:at' al impulses llowing' through the ir not will draw armature down into co with a spring retracted lever 50, "while u roi'ig' impulse will draw down both level. T he nio'veii'ient of such love r inand 5 he availed oi to make or to break local cu'c i l these circuits he in turn cor :rlled l he liong uesof the polar izcd relays at, ror sample, one will'bc made or hrol-zen uion the tongue. is on one or" its contuc he other ween it is on the opposite con it evident that a large number of u sclianiral conditions in the receivcr may he established ziccoriilingr to the articular roinh url' 1" impulses received 3 the two These eon ilion :idvantaee of proper, are ie't x, .1 L, l, (l, lLconthe relays just desc bed, as fol- A weal; impulse sent over circuit 3-, will ecuso the armaturedl) of lows.

: inagnct' .7 to he drawn down into contact with the stop on th s adjacent lever 50, therebyconiplcting a local circuit through battery 12, wire 6' magnets B. I), l ll, wire If, lever 50,-armature 49, and wire 7):, back to the battery, provided the polarity of the im- 'pulsc is'such as will cause the armature of polarized relay so to be drawn over against its blank stop. If the impulsois of the op- 11 that portion of and neutral relays.

or control ii suitable out magnet H, thereby rendering both inopcrative. G is cllccicd through the polarized reley46',

and neutral relay 48 of circuit. 3, 3. As for magnets A, C, B, i), it will be seen that the first two are energized whenever an impulse I of any character, weak or strong, positive or negative, is sent ovcr circuit 2, 2, while the last two are similarly energized by circuit 3, 3. One set is brought into operation in advance of tho-other according to the order of succes sion of the impulses over the two circuits. From the foregoing it will be seen that a large number of working combinations may be made by the magnets A, B; C, D, E, F, G, ll, by varying the polarity, strength, and ordcrofthe impulses in the two circuits. In fact, as before stated, forty-eight distinct combinations may he so made.

, Iilaving thus briefly described the principle of the preferred embodiment of myinvention, i shall now proceed to the description eta convenient apparatus for utilizing the same or the production of legible impressions at the receiving end of the system. .The devices comprising the same are conveniently mounted on a plate I, supported in any suitable way. For-pur oscs of description the oppcrotus nature 1y divides itself into several partsjof which i shalldescribe first The type wheel or carvier. Thc types or dies which produce the legible-impressions are preferably carried by a cylinder or wheel T, in three circularrows of sixteen characters or spaces each, as shown, (Figs. 4 and 8), and is mounted. on thc shuft if so as to rotate therewith hut to move longitudinally thereon.

Dc'viccs for shifting the type wheel longitudinally to bring a dcs i'rcd row iojhe impresstun LIIOi'YLt E H' this purpose I provide a pivoted lever T, carrying at its lower end a stud which engages the type Wheel'inthe slot between two of the rows 'of typo. .lts upper and extends into a. helicalgroove ou a small drun'i t. mounted rigidly on a shaft 15, so that partial rotation of the shaft one way or the other will throw thotype wheel to the Similar control of magnets E and The shaftcarposilarged, located between the magnets A B,

. corresponding to the magnets A, B, of Fig. 1.

If thesemagnets are energized simultaneously both Wlll exert their force on the armature and no movement of the same will result. Consequently the drum t and type wheel T willremain in the positions shown. But if one of the magnets be energized before the other, the first will draw the'head of the armature over, as in Fig. 9, thereby partially rotating the earn the type wheel correspondingly. The other magnet then being energized, the action byeXerting its force more on the lower endof thearmature, which is now nearer to it than is the upper, enlarged end.

For the purpose of restoring the cam drum and type wheel to their normal positions, the shaft t is yieldingly connectedwith jaws t, t (Figs. 2 and 9), which are loosely mounted on the shaft, by a coil spring t, the ends of which engage studs on the said jaws, as

shown. The'latte'rv both abut against a stud from the stud t, as

the magnet ceases to be ener ows the armaof the spring t immediately t p 'ture back to its central position.

succession of the imp From the foregoing it will be seen thatthe position of the tgpe rows relative to the impression point epends upon the order of nets A, B, which are controlled by the circuits 2,2, 3, 3, respectively. I It is evident that the precise number of rows of characters is merely arbitrar. and not of the essence of the'invention, an more or less than three may be used if desired,

Likewise the mechanism for causingimpressions to be made from the different rows may be varied, or such well known expedients as shifting the tape or platen,- or both, may be bring a desire character to the pmnting POSL- would yield resorted to, if desired.

Mechanism' 01' rotct'mg the type wheel to tionk-Tho rotation of the type. wheel is effected by a pulley p on the shaft t, connected by a cordp with alarger pulley fp t on a-shaft p journaled in the lower part 0 he late I,

igs. 2, 4 a'nd5. The cord engages t 1e pulley ),f1iOl3lOIl&ll so as to slip thereon if the sai pulley is he d against movement, but is positively secured to the the spring p being provi ed to make the tension of the cord or belt honstant. The pul ley 19 Fig. 2-, rotates counterclockwise, and I thereforeplace the spring p on-the right hand or compression reach of the belt p;

If it were in the. other or tension reach 1t more or less, depending upon the load connected with pulley p,-thus mak1ng drum and shifting it will assist l ulses inthe two mag-- ulle; p, as shown,-

the movement of the latter uncertain. in its present location the sprin can 'eld only after the friction between t e pul ey p and belt phas been. overcome -that is, onl I after the type wheel shaft has been stop e 1 For the purpose of rotating the shaft 1) the same-is provided with an armature p, 1 located between magnets O, D, correspond- E ing to magnets-C, D, of Fig. 1.

magnets effect the printing also, they may ,-be' termed the working magnets and by 1; reason of the power required of them they may be somewhat larger than the others in The armature is enlarged the apparatus.

so that its motion at each end, as shown,

net is energized first.

It is desirable that the motion of the armature should be uniform whether a shorter or longer movement is necessaryto bring the desired letter to the impression point. For this purpose stant load which must be overcome before the rotation of the shaft can begin. The armature is mounted loosely on the shaft, but has two pins which carried by'the shaft. An adjustable spring g draws the armature over until the right and pin (Fig. 3) is in contact with the arm. When only one of the magnets is energized the armature will not be drawn towards it, because a single magnet is'not strongenough to overcome the load. But when oth are ing on the shaft, until the left-hand in strikes the arm whereupon the shaft egins to rotate. y this time, however, the airgaps between the armature and magnet coresare closed, so that the full force of the magnets can be exertedto best advantage. The spring pf, connected with the shaft 1), brings the latter and with it the armature, backto the normal position when the magnets cease to be energized.

Actuated by the magnets C, D, the type wheel T and shaft t rotate until an arm a on the latter strikes a stop, as s, projected into its path, as shown in Fig. 13. There are sixteen stops for this purpose, corresponding to the sixteen spaces on each row .of the .type wheel, so that by projecting the proper stop the ty e wheel may to rest with any. esired letter or space at the im ression point. Of course the rotation 0 the type-wheel shaft t could be effected in various ways, as by an independent motor'of any convenient construction, 'ect'ed, or immediately thereafter, the power 1s effective to carry the'type wheel around by the stop.

each stop 8 is mounted to slide radially to ward the shaft t, and has two arms, one of Since these' it is provided with a con engage an arm p,

so long as at the time the proper stop 1s prountil the movement of thesame is arrested;

As shown more-clearly in Figs. 11 and 12, v

will be in the same direction'whichever magenergized the' armature is drawn over turnbe brought; 1

by which it is constantly pressed toward the shaft.

Loosely mounted on the shaft t, inside of the circular row of arms 8 are four disks,

d, d, (5 d each having sixteen. unequally spaced notches, so that the notches in only one row across the four disks can be in register at any one time. The corresponding arm 8 will then drop into the row ofregistered notches, and the other arm of the stop .9 will project into the path ofthe arm a and bring the type wheel to rest with the corresponding character at the impression point.

The disks are all of the same size, but in Fig. 14 they are shown as of successively arger diameters, to better illustrate the reg ister of the notches. It will be seen that in the figure the only notches in register are at the point r. To bring notches into register at r, disk (1 must be moved. At the point 7 disk d must be moved; at the point 1, disk d at the point 7*, disk (1 At r disks d and d must be adjusted, and so on around the entire periphery, for sixteen difierent combinations.

y armatures (Z d (2, d, respectively, the.

disk (Z is provided with an aperture a large enough for the pin 0 to project therethrough to the disk d and to have a limited movement in the aperture n as the armature is raised and dropped. Both disks (1 and d have openings, as at n thro h which the pin extends to the disk and the three disks (1, d", (P, all have similar openings, at

.n" through which the pin 6 reaches the last disk, (1. It will therelore be seen that each disk nay be shifted by its armature independently of the others. To limit the motion of the disks to the extent just necessary to bring the notches into register they are all provided with apertures of the same size,

V.lli 'll register w on the disks are in it nor mal position, as indicated at n, Fig. 3, which may correspond. to a space, one of the sixteen positions on the typewheel being left blank. Into these openin s projects a fixed stud n, which the disks will strike and so be stopped when they have been shifted the required amount, as will be readily understood.

For the purpose of retracting the disks to ots n, a, a n, in

the normal position, adj'ustablesprings 0, a e, *e", are provided, engaging the pins 6, e, 6 .2 respectively, as shown in Fig. 3.

The magnets E, F, G, H, which control the armatures and through them the ty e wheel disks, correspond to the magnets F),

bered, energized in various combinations, sixteen in number, according to the polarity, strength, and order of the im ulses sent over circuits 2, 2, 3, 3. Thus, re erring to Figs. 1, 3, and 14, a strong positive impulse over around magnets F, H, and a strong negative current in the other circuit will cut out magnet G, thus energizing only magnet E. W'hereupon its armature is raised, shifting disk (2, which brings all the matches at the position 1- into register Stron ositive currents over both circuits would l iave 'cut out all four magnets, thus leaving the disks in their normal position. A strong positive impulse in circuit 2, 2, and a weak impulse of the same sign in the other, would cut out all the magnets but G, whereupon only disk d position 1- into re ister, and so on for the different combina ions. Otcourse, in the complete operation of selectin a character, such ones of the magnets E, G, H, as are'energiz'ed at all are energizedsimultaneously; so that upon the magnets themselves,

impulses in circuits 2, 2, 3, 3, have no efi'ect. Likewise the polarity and strength of the impulses in the main lines has no immediate effect on these magnets, the function of the variation in polarity and strength being merely to select one or more of the magnets for operation. Hence each magnet could, if desired, be energized andcontrolled by an independent transmission circuit, with or without the inter osition of a local circuit. In such case the se ective combinations could be made by permutations of the magnets. That is, by operating magnet E for one letter or character; magnets E and F for another; magnets E and G for a third, and so on. By using more magnetsthe number of such combinations could be increased almost indefinitely. In this way the number of characters in a row of the type wheel could be increased, so that only two rows might be required instead of three, or even only one row.

As before stated, the order of the impulses on the controlling magnets E, F, G, II. But. if impulse of circuit 2, 2, either weak or strong, precedes the impulse in the other, the magnet B, Figs. 2 and 4, will be energized first, throwing lever T inward, and moving the type wheel'in the same direction on its the printing position. The reverse order of differences in ,the order of succession ,of the-- in circuits 2, 2, 3, 3, has no ultimateaeilect F, G, H, of Fig. 1, and are, it will be rememcircuit 2, 2, will short circuit the battery 6 would be shifted, bringing the notches at the .shaft, until the outer row of characters is in movement? 'pression p0'int.'lhe apparatus herein illusthe position shown in Fig. 5.

the impulses would bring the inner row to 3 the impression point, while simultaneous l impulses would maintain the wheel in its original position, as previously explained. It will thus be seen that by varying the pol larity, strength, and order of the current 1m 1 pulses in the two circuits any desired charaoter on the type wheel may be brought to i thefprinting position.

he devices for feeding the paper to the vlml trated is intended to print upon a strip of paper, similar to that used by the ordinary stock ticker. If the tape or strip is wider 5 than a single row of characters on the type wheel, not only will the proper letters be prmtl ed thereon, but characters on the adjacent row 1 or rows may also produce an impression, thus making a confusing imprint. I therefore provide the feed rollers f, 1', which feed the tape between the platen and type wheel, with a coacting rib and groove, as shown in Fig. 7, so that the tape is embossed longi tudinally, as shown in Fig. 10. By this means only the embossedportion of the strip strikes the type wheel, as will be readily It will be understood, however, that the embossing of the tape is not an indispen' sable feature of the invention. In passing to the feed rollers the tape travels over a guide g, Figs. 5, 6, and 7, having a groove, as shown, to receive the tape and hold the same against sidewise displacement.

Connected with the lower feed roller is a ratchet f engaged by a pawl f carried by the pulley, p on the working magnet shaft 13 When the pulley is rotated by the. magnets C, D, the pawl rises on the ratchet to hen the pulley is retracted by the springs 1), p (Fig. 3),- the pawl engages the ratchet, rotating the same and the feed rollers enough to carry the tape forward one space, as in Fig. 2. A flat spring g bearing 'on the ratchet f prevents any accidental retraction of the same. p

The meeham'smfor efiecting the pgint'ing. Pivote'd to the guide 9 is a curved platen or hammer h, having a finger h to limit its downward movement, and a striking face h,

to carry the tape up against the type wheel. l

The platen also has a ug h nearits central ortion, to be struck by the actuating lever hf. The latter is rigidly secured on the shaft p rotated by the working magnets C, D, which latter also rotate the type wheel. The

arts are so pro ortioned and arranged,

owever, that the ever h will not strike the platen untilthe pulley is almost atthe end of its movement, the belt 1; slipping on the small pulley 1) .if the t pe wheel shaft is stopped before the large pulley completes its The rinting is therefore not effected until the esired character has been ln. order to make theforce of the platen uniform in striking the paper against the type wheel and to cushion the blow thereof, the lever h is provided with a pivotal finger h", which isv utilized as the part to strike the lug h on the platen. This linger turns ,with a certain amount of friction, determined by the spring plate h. The result is that when the platen has been struck with the desired force the friction finger will yield; al owing the lever h to continue its movement, the force of the blow being determined; however, by the force necessary to overcome the friction of the finger h. In the path of the lever h is a stop h Fig. 5, limiting the nihyement thereof. Thisstop carries a finger 1L which projects into the path of the lug h to l engage the sameland prevent the platen from being thrown upward farther than enough to bring the tape against the type wheel with the desired degree of firmness. Upon retraction of the shaft p to its normal position the lever h is brought to rest upon an arm h", imounted on the side plate I, and having an upturned finger h. The friction finger h strikes the finger h and is raised to its normal position, as in Fig. 2, ready for another printing operation.

The mechanism forbreahing the local cireuit after each im p1'essi0n.-In order to prevent sparking at the local circuit contactsof the relays 45, 46, 47,48, Fig. 1, when the local circuit controlled thereby is broken, I provide a resistance R which is automatically thrown into the circuit at the time-of, the printing operation, and cut out again immediately after the circuit is broken. Hence the resistance is then normally out out, as by Zthe lever R. Fig. 1, pressed against its contact by anarm B". This operation is effected by the following devices. The resistance is conneeted across the spring contacts 0, c, Figs. 2 and 5, which latter are in series with the magnets C, D. Engaging one of the contacts is a three armed lever 0 one arm of which extends under a pin 0 on the pa wlf so that inthe normal position of the parts, Fig. 2, the lever will be drawn down and the contacts brought together, thus cutting out the resistance. The other end of the lever is held by a pawl 0 so that it will still hold the contacts together when thepaw'lf is lifted by .the energization of magnets C, D; But just as the lever h is'com leting: its movement upward, it strikes a p unger 0 which bears against the pawl c", pushing the latter out of The contacts are thereby position in series with the local circuit of battery I). The circuit is then broken, 'by the relays in circuits 2, 2, 3, 3, without sparking; wherebrought to the impression point.

engagement with the lever c and permitting the same to drop.

allowed to separate, leaving the parts in the. shown Fig. 5, with the resistance upon the lever h falls, allowing the pawl e to be again brought into the pathof the lever c i and engage the same when drawn down by the pin 0 In this way the contacts 6, e are again closed, and the resistance cut out.

Vl hile I have described specifically only one form of my invention, it is evident, that the same is capable of other embodiments. it is also evident that the Various sets of mechanism includec in the invention, such as the devices for shifting the type carrier longitudi-' nally, for rotating the type Wheel, etc, may be used in other receiving apparatus, and with other transmitters,

What I claim is:

1. In a telegraph instrument for recording legible impressions corresponding to current impulses over a plurality of transmission circuits, the combination with a plurality of circuits, of mechanism for producing the impressions, and devices for controlling the impression mechanism, dependent for operation on variation in the polarity, strength, and order of succession of the current impulses sent over the plurality of circuits, as set forth.

2. In a telegraph instrument for recording legible impressions corresponding to current impulses over a plurality of transmission circuits, the combination with a plurality of circuits, of a longitudinally movable type or die carrier, mechanism for producing impressions therefrom, and means for shifting the type or die carrier, dependent upon the order ol' sue-- eession of the current impulses over the plurality of transmission circuits, as set forth. I 3. in a telegraph instrument for recording legible impressions corresponding to current impulses over a pluraliity of circuits, the combination with a plurality of circuits, of e rota,- table and "longitudinally movable type or die wheel, mechanism for producing impressions-therefrom, means for controlling the rotation of the type wheel, dependent upon the direction and strength of the current impulses, and means for shifting the type Wheel longitudinally, dependent upon theorder of succession of the current impulses over the plurality of circuits, as set forth.

4. in a telegraph for recording legible i1n pressions corresponding to current impulses over a plurality of transmission. circuits, the combination with a plurality of circuits, of a rotatable and longitudinally movable type or die wheel, means for controlling the rotation of the type wheel, dependent upon the direction and strength of the current ini pulses, means for shifting the type wheel longitudinally, dependent upon the ordc-r'of succession of the current impulses in the circuits and means for producing impressions from the type wheel, operated by'the current impulses independently of their directior'i, strength or order of succession, as set forth.

5, The combination with a longitudinally adjustable type or die carrier, and means for adjusting the same, of a plurality of magnets arranged to act upon the said adjusting of the said disks, s plu 7. The combination with longitudinally adjustable type or die carrier, and mechanism i'or adusting the same. of u pair of magnets, a. rotatable armatilre actuated by the magnets, means enabling the armature to actuate the said adjusting mechanism, and means for energizing the magnets simultaneously or in different order, set forth,

3. The combination with rotstehle tyne or die Wheel, and means for rotating the same, of plurality of norms retracted stops for limiting the wheel, means for projectin t a plurality of disks r plurality of magne" disks, and means singly or in different p 9. The combination r or die Wheel,

said the magnets i et forth.

same, of a plurality 1 J for limiting the movement of the t wh el, plurality of disks holding the st and herring notches i plurality of magnets ne ated with one of t tate thessme, end magnets singly or bring different sets into rgister v stop to be pro' s it rorth.

' 10. 'l he conminstion with e rotatable type or die wheel, and m is for rotating the same, of a plurality of disks concentric with the type wheel, having notches in. their peripheries, e plui lity of for limiting'the movement of the t vrl l.

ripheries, a

Licensing neripheries nagnets to ctuete said disks, and m a the magnets sir bring ditl'erent st into register permits'top to be projected, as set i l. The combination groups to disks Jehle ty 1e ing te or die wheel, and means E same, of a plur w oil spaced notcl in; rslity of stops for-limiting the type Wheel, arranged n bout the disks and hearing on their ieS, a plurality of magnets, one for tch disk, operetively connected there t lly rotote tl same, and 119.33% )0 R9 the magnets tlngly or in dil'. .ent gsoups, to actuate the disks and bring sets of re teting t e s for energizingcted position '110. arranged ra.

notches on the disks into register, to permit the corres onding stop to enter the registered notc es and be projected into operative position, as set forth.

12. The combination with a rotatable type or die wheel, of a rotatable armature operatively connected withthe type wheel to Ito- 'tate the same, magnets for actuating the armature, a platen adjacent to the-type wheel,

an arm connected with the armature to actuate the platen, devices for feeding a band or strip between the type wheel and the platen, and mechanism connecting the feeding devices with the said arm, whereby the movement of the latter causes the band or strip to be fed forward a predetermined amount at each printing operation, as set .14. 'ihe combination with a type or die carrier havl characters arrange in rows thereon, of evices for feeding a band or ..strip and embossing the same, and a platen for carrying the embossed portion against the type or die carrier, whereby the imprescarrier having characters arrange sion on the band will be confined to the embossed ort-ion, as set forth.

15. he combination with a t e or die in rows thereon,-and means for shifting the type or die carrier to bring the different rows singl to the impression point, of.devices for fee ing a band orstrip to theimpression point and embossing a portion of the band substantially equal in width to a single row of characters on the ty e or die carrier, and a platen for striking tfie embossed portion of the band against the row of characters at the printing position, whereby an impression will be made only from a character in the row at the impression point, as set forth."

16. The combination with a printing mechanism, of electromagnetic devices for actuating the same, a circuit for energizing said devices, means for making and breaking the circuit, and means 0 era'ted b the said electromagnetic devices or throwing resistance into the circuit before the said circuit is broken and for cutting out the resistance after the circuit is broken, as set forth.

- 17. The combination with amovable type or die carrier, and mechanism for'actuating the same tobring different characters thereon to the im ression point, of electromagnetic devices or actuating said mechanism, and means for roviding a constant load to be overcome y the electromagnetic devices before the-said mechanism is affected, as set forth.

18. The combination with a movable type or die carrier, and mechanism for actuating the same to bring different characters thereon to'the impression oint, of a rotatable. armature, means enab ing the armature to to rotate the armature, and a constant load connected with the armature, as set forth.

' 19. The combination with a movable type or die carrier, and mechanism for actuating the same tobring different characters thereon to the impression point, of a rotatable shaft connected with the said mechanism, an armature mounted on the shaft with prorotating the armature, and means for apply- ;ng a constant load to the armature, as set orth.

shaft, and an armature loosely mounted thereon, of a pair of ins carried by the armature, an arm rigi ly mounted on the shaft extending between the pins, a spring operate against said spring, as set forth,

21. The .combination with a rotatable type or die wheel, a pulley connected therewith, a driving pulley, and means for rotating the same, of a fr1ction belt passing over the first mentioned pulle and rigidly connected to the periphery o the other, and means for making the tension of the belt constant, as set forth.

22. The combination with a rotatable type or die .Wheel, a pulley connected therewith, a driving pulley, and means for rotatin the lat tenin one direction only, of a friction elt over the pulleys, and a spring in the compression reac of-said-belt, as set forth. 23. The combination with a type or die carrier, and a pivoted platen for producing forstriking the platen, to actuate the same, and a frictionally mounted finger carried by the arm, ada ted to strike, the platen and cushion the blbw thereon, as set forth.

JOHN BURRY.

Witnesses:

M. LAWSON DYER,

S. S. DUNHAM.

operate the said mechanism, electromagnets holding the armature in a normal position on the shaft, and electromagnets arranged to impressions therefrom, of an oscillating arm vision for lost mdtion, electromagnets for 20. The combination with a rotatable

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