US1258809A - Transmitting apparatus for electric telegraphs and the like. - Google Patents

Description

L. M. POTTS, TBANSMITTIMG APPARATUS FOR ELECTRIC TELEGRAPHS AND T us me. Pateimd APPLICATION FILED OCT. 18. "I3- 5 sma'ns suicr I.

W on 00 o o 00 a0 L. POTTS.

l M a 2n 1 O M H M M n L n F. M H T m Mzfl P ,8 H P 3 GM Ell l Ea Tl NT RC o 0 E: LL n M n A c L .DI P A mnsmnmdnmmrus 1,258,809.

gig?? L. M. POTTS.

TRANSMITTING APPARATUS FOR ELECTRIC TELEGRAPHS AND THE LIKE.-

Patented Mir. 12, 1918.

5 SHEETS-SHEET 3- 1 APPLICATIOI m L18. ml

. .L. M. POTTS. JRANSMIHING APPARATUS FOR ELECTRIC TELEGRAPHS AND THE LIKE.

' as in an ordinary.) typewriter.

this is not practicable, should be occupied to get the required speed.

LOUIS MAXWELL POTTS; OF BALTIMORE, MARYLAND, AS$IGNOR TO AUSTIN McLANAHAN, 0F BALTIMORE, MARYLAND.

TRANSMITTING APPARATUS" FOR ELECTRIC TELEGBAPHS AND THE LIKE.

Specification of Letters Patent! I Patented Mar, 12,1918.

Application fled October 18, 1913. Serial No. 796,006.

To all whom it may concern:

Beit known that I, LOUIS MAXWELL, lorr s, a citizen of the United States, residing at the city of Baltimore and State'of Maryland, have invented certain new and useful Improvements in Transmitting Apparatus for Electric Telegraphs and the like, of which the following is a specification.

The primary object of this invention is to provide a keyboard controlled transmitter for telegraph circuits, which will rmit the operator to operate the keyboar at an irregular rate or even stop operating altogether for a considerable interval, and yet permit a uniform rate of line transmission, and this without the use of a erforated tape.

In my machine, the lreyboard is perfectly free and does not require a lock asis the case with all multiplex systems and most other machine systems which use keyboard transmission. The ,operation of the keyboard in my machine is, therefore, as free Moreover, wi my machine may stop for a considerable len the operator h of time 'for the purpose of reading an arranging copy, checking ofl and marking messages, without inter ering with the rate of line transmission. This has heretofore been a rather serious difiiculty in the case of direct keyboard transmission. }-In the Morse system transmit with one hand,

the operator can while marking or checking ofi with the other hand 'the mes sage previously sent, but with a keyboard since both hands It is possible with my machine to so regu late the rate of line transmission that the operator will be able to keep the line entirely bus and thereby lose no line capacity.

y machine has the further advantage that errors of keyboard operation can be corrected before transmission. In the case of the de ression of a wrong key, the combination 0 code elements set up can be replaced and reset correctly before actual transmis sion to line takes place.

My machine possesses an economical ad- 'vantage over tape transmitting systems in that the cost of the tape is saved, and the apparatus is simpler.

While the primary object of this invention is as above stated, it is applicable to various other uses, all within. the scope ofv my invention as set forth in the accompanying claims.

' In order that my invention may be better understood, I shall now describe a specific embodiment-thereof in detail, to accompanv the drawings wherein:

Figure 1, is a top plan view of one form of machine embodying my invention, with a portionof the keyboard broken away:

Fig. 2, a vertical sectional elevation thereof;

Fig. 3, a detail side elevation of the spacing contact mechanism;

Fig. 4, a detail front elevation of said contact mechanism with the combination bars which actuate it shown in section;

Fig. 5, a detail vertical section of the transmitter carriage with keys 3, rl'anged after the fashion ofthe standard typewriter keyboard, and each of these keys adjacent its rear end has a beveled upper edge 4.

Extending transversely across all'said kev levers and lying above the beveled portions 4 thereof, is a series of eight longitudinally slidable combination bars 5, supported near eachcnd upon pins 6 passing through slots 7 in said levers and mounted between plates 8 and 9- secured fast to the machine frame, said, plates being slotted as at 10 "to act as es'for the key levers. Each of these combination bars is provided on its lower edge withfaseries of cam faces 11 slanting upward-from right to left, and adapted to be engaged by the beveled edges 4 of the key levers when the latter are operated. These cams are arranged on the lower edges of ed on the top plate 160i the machine frame, is a circular plate 28. having an annular] to the machine frame.

'this sprocketand rotatable about a common each key lever shifts a certain one or combination of these bars to the r1 ht, The operation of combination .ars in this manner, however, is old and well known in to right, and so arranged that when a ven combination bar is shifted, as above escribed,these cams will occupy such position above the unoperated key levers as to revent the operation of two keys at once. othing new, however, is here claimed for this arrangement.

Each combination bar has on its upper edge a camv 13, and each of these cams is in operative relation, respectively, with one H of a series of eight levers 14. These levers are in turn in operative relation with eight "wirtically slidable rods 15, the lower extremities of which lie directly above levers 14, near their free ends. The rods 15 are guided vertically by a plate 16 and a bracket 17 through which they pass, said rods resting by means of shoulders 18 upon said bracket, and shoulders 19 upon plate 16. Supporting some of the rods on shoulders '19 and others on-shoulders 18 is merely for the purpose of allowing room forsaid shoulders.

The upper ends of rods 15 lie, respectively, beneath upturned ends ofeight levers Qt'hthe' tails of" which levers are wedge shaped as at 21, where the separate, as later described, with a kni e edge 22 secured to an arm 23 pivoted asat 24 (see Fig. 1), and operatively connected to a rod 25 adapted to be operated. by a. plunger magnet 26. v v 1 Fast upon stationary brackets 27,1uountcircular recess 29 (Fig. 2) forming a flange 30. Adapted to rotate within this recess and supported upon the said flange ,is a flat ring 31 a a l his r1ng31 carries ad acent itslnner edge a 88129501 equally spaced pins 32 fast;

thereto andextending entirely around the ring. These pins engagq'with the teeth of a sprocket 33 rotatable upon a pivot 34 fast axis therewith, isa ratchet 35with which is adapted to engage a pawl 36, pivoted upon arrarm 37,. which in turn is pivoted upon. the axis of said ratchet. Arm 37' is normally held against an adjustable stop 38 by a strong spring 39, and its movement away from said step is limited by an adjustable stop 40. This arm 37 it: in operative relation with plunger rod-25, so that the 0 era- I 121011 of magnet 26 acting through sai rod Fastened rigidly to,

the distance of which will be hereinafter more particularly referred to. V

Extending transversely through ring 31, and slidable friction tight therein, are a. multiplicity of groups of permutation elements in the form of pins 41, eight pins in each group, and said groups arranged in straight lines radiating from the central axis of ring 31.

In actual practice, the machine herein described has 216 such groups of pins, but in the drawings a few only of these are shown, it being understood that these groups of pins extend entirely around the ring 31, or as far around the same as desired. These groups of pins are equally spaced apart, and corresponding pins of the several groups lie in eight circles struck from the center of ring 31.

Pins 41 are adapted to come into alinoment, respectively, with the upturned ends of the eight levers 20 audio be operated thereby as later described. The function of these pins is to operate in various combinations a'series of movable transmitting contacts 12. These contacts, each of which comprises a small spring, a'rc mounted suitably insulated from each other upon a transmitting head or contact carriage 43. Contacts 12 are adapted to move between and alternately engage relatively stationary pairs of contacts 44 and 45 also mounted upon said carriage (see Fig. 5). These relatively stationary contacts are mounted upon metal supports 46. 47 and -18, insulated from each other and from the other parts of the frame of the carriage.

Contacts 42 are adapted to be operated by pins 41 through the medium of eight levers 49 fl'ilcrumed on a common support 50 on the contact carriage (see Fig. 5). One-half of these. lovers have straight ends 51, and the otherhalf hooked ends 52. The contacts 42 are arranged in two groups of four each; and the levers havlng straight ends acting to pusii -t-he ir s aid contacts, and the in operation, since the upper ends of levers 49 all i'riove i: the same direction in being operated by pins 41. The "levers 49 have insulated tips 53 (Fig. 8), so that they do not make electrical connection with spr ng contacts 42. Each lever 49 termihooked ends adapted td'p'u'll'their-"contacts--- rasasoo hates at its lower end in a downwardly exover one row of ins 41 and normally just tending finger 54 and the levers are so above the tops said pins when they prospaced that these fingers travel respectively, trade throu h the ring 31 in their set posi- 1n the paths of thepins 4:1; that is, in the tions. This ever-is pivotally mounted upon 5 travel of. the contact carriage, thefingcrfl a studf84 carried by a bracket 85 fast on 70 5% travehngip'the-cight circles inwhich the the inaehine frame. The end of lever 82 p1ns'41 are arranged; a opposite extension 83 has a beveled edge The lower portion of each lever 49, in 86 (see.Figs. 8 and 10) adapted to engage its; norm position abuts againsta stop 55. with knife edge 22. When said knife edge 10. M engages the beveled end of lever 82, its ex- 75 The t nsnuttlng contact carriage is tension 83 is forced downward upon and mounted f on the outer end of an arm 56, returns to normal any pins which may have fastto a s eeve- 57, which is rotatable and been set. V -vert1cally.movab1e on a stud 58 fastened Each, combination bar also carries on its 1 5' ng1dly tothh machine frame. upper edge a in-8 7 (see Figs. 3 and 4), 80 Arm 56 is normally held up so that the the function-1o which is to operate a spac- -lower extremities of the levers 49 clear pins ing contact each time one or more of sai il when-the latter are pushed up, and this bars is" --slid forward. The mechanismby is effected by means of a spring 59 acting. which [these pins thus operate the spacing through a magnet armature 60, having a contact. comprises, among other parts, a 85 yoke 61 adapted to engage with two annu pivoted yoke 88, straddling all of said comlar flanges 62 on sleeve 57. bination barsf lafid lyin "directly in front An e ectr o-magnet 63 made fast tothe of pins v87,-, antl-adapte to be rocked on frame of the machine .is adapted tooperits ivots by 'peration of any of said ate armatureGO, and when this magnet is com inat; are. VfThisyoke is adapted, 9o energized, as hereinafter described, it will operate through a pin act through. said armature tolower arm56, I do nwardly extending arm of and thereby bring the fingers on the lowera-bcll'qylt l elf-9O, fulcrumed on a bracket ends of levers 49 into position to be engaged 91sec I v block of "insulation 92 fast by'pins 41. "the mach-inc frame. "The, other arm of 95 Arm 56 carries a bell crank lever 6a yer. s pted to operate upon a concrnmed thereon at 65, and havin an arm made fast to insulating block extending. over the upper edge 0% stud-58 hissp'rin carries a contact 94, which through an opening 66 in sleeve 57. -'I;he adapted at times to engage with an adother end of this bell cranklever is {pivot/- u'sta'ble-rcontact 95, mounted upon an arm 10o ally connected, to a link-67, which-link isgjin cusses-"red to block 92.- Lever 90 operates turn pivotallyconnected to an arm'68; This conta cspring 93 through an insulating arm is fast to a spindle-69 mounted to ro- 'tip' 97g v tate in a bracket70 fast to armfifi. Also In Fig. 7 I' have indicated diagrammatifast tospindle 69v is an Iesca'pement pawl 71, cally one form of code which maybe em- 1015 which is-atlapted' to engage with the teeth ployed with my machine,r said diagram of a ratchet 72;"mounted for rotation -.on showing the venous combinations in which arm bracket 70. Rigidly secured to this the pins 41- may be operated' to form the ratchet and adapted to rotate on the same different si als. In;this diagram the veraxisztherewith is a sprocket 73, the teeth tical rowo dots indicated a, b, "a, d, e, f, d of which are. adapted to engage with pins h, represent the row of pins 41, and the do a -32 onthe ring 31. beneath each of the characters along the top The movement of link 67 to the right, of the diagram indicate the combinations in Fig. 2,'-isagainst the tension of a spring-74, which the pins are'operated to transmit sig- 00 secured atpneend to a pin 75 on arm' 56, nals corresponding'to these'eharac ters. The 1'15 and at its other end to a pin 76. on link 67. dots beneath the three blank spactis between Arm-56 is under tension horizontally of zero and-the character & represent the a spring 77 through a cord 78 attached at combinations in wlijlchthe pins are operated (me end to a drum 7 9, and at its other to for sendi'n signals for formlng' certain op #5 the sleeve 57. i eration's w eh these signals are used for op- 12'0, The spring '77 may be unwound by the erating a page printing machine to effect the operation .of "annescapement pawl 80, on a l n1ng;spac1ng,andhackin of the-carriage, ratchet S1,:iftlSfllO the winding'shaft of said but since such apparatus orms no part o spring; this invent on, further descrlption along this 50 After pins 411 have been set and have open line is considered unnecessary. Thepms 41 a-Xcd upon th'e-tc'ontact levers 4:9, they must ,may be operated in these'combmatlons for he returned to normal before "they again any other desired purpose. s reachthe, setting point. 4 This -is accom gr From this dlagram may also be obtained piishedjby means ofa, lever 82 having a the positions of the comblnation operating as transverse extension 83 adapted to extend cams 11, on all of the comb nation bars 5.

. cal row of characters a to These combination bars correspond, respectively, to horizontal lines o posite the verti- I5 and the dots in these horizontal lines, except the vertical row of eight dots at'the extreme left hand and ot the diagram, i to the relative polsitionsiof the combi'at on cams on these ars.

It should be ,understood, however, that my invention is in no sense limited to this particular code.

One arrangement of the electrical connections is shown in Fig. 12, where 98 represents in development a segmented transmitting commutator .which is 1n permanent electrical connection with a collector ring 99 through electrically connected brushes 100 and 101, which we may assume aredriven by any suitable mechanism. Collector ring 99 connects to telegraph line 102, while the eight segments of commutator 98 are electrically connected respectively to movable A transmitter contacts 42. Alternate front and back stationary contacts Mend 45 are connected to positive and negative of a1source .of current supply 103, grounded as shown.

This arrangement of electrical connections is old and well known in the art, and is not here claimed as new in itself; that; is, considering contacts 42, 44, .and 15, merely as electrical contacts, aside from their relatlon.

to the improved transmitting mechanism herein shown and described. As brushes" 100 and 101 rotate, they transmit to-line current impulses from the source I 103, depending upon the state of contacts 42. If all of these contacts occupy the same, relative positions, as shown in Fi 12, alternate plus and minus impulses will brush 100 sweeps the segments of commutator 98 connected tosaid contacts. "The signals are transmitted bymovi 9; contacts 42 from the positionsshown in 12to their opposite contacts. :in various combinations,

thus transmitting to line impulses reversed in polarity from the normal. This in itself is an-fold method of transmissions nd need? not befurtherldescribed. 1 1 Adapted-td-travelwith the brushes-100 and "101 are" other electrically connected brushes-104 and 105, which sweep contact rings106an'd 107, respectivelv said rings being shovinin development, The. ring 106 contains e space occupied bythe'eight negative main'lll from said direct current not enter a e transmitted to line as the,

v gent 108, somewhat-' greater in H 1 nts of the commutator 9,8; and

this segment: 108 is permanently electrically connected to a. terminal of magnet '63., The other "terminal of this magnet; connects, through a suitable resistance 109, with-Yaw positive maiii'IIOlea ding from' a local source of direct current. .The collector ring 107 is. permanently electrically connected 'to the ed, through spaced contacts 94 and 95. ith a terminal of plunger magnet 26, the other terminal of whichconnects through suitable resistance 112 to positive main 110,

Assuming the electrical connections to be as in Fig. 12, the operation of my improved transmitter is as follows:

The depression of a key 3 moves a certain one or combination of bars 5 to the right as the operator faces the machine, and these in turn, acting through cams 13, move cor responding combinations of levers 14 upward, and these in turn acting through rods 15, send the heads of levers 2O upward in corresponding combinations. These levers 20, however at this time only move sufliciently far or their tails 21 to come below the knife edge 22.

The depression of any key causes the combination bars 5, acting through pins 87 and yoke 88, to close the space contacts 94; and 95, thus energizing magnet 26. This mag net will .then push the rod 25 outward, and, acting through arm 23, will cause the knife edge 22- to move toward the tails of levers 20, engaging .theupper beveled faces of said tailsand causing the heads of said levers to rise still farther in the same direction in which they were moved by the rods 15. Knife edge 22 asses over the tips of the set levers 20 an under the tips of those of said levers which" are unset, or which do V 'ven-signal combination, thus looking all sa1d levers against further operation'u'ntil knife edge 22 returns to normal, consequently I preventing interference with the combination of pins already set by premature depression of another key. The heads of levers 20in thus rising, will push corresponding pins 41 upward and cause the same to project above the u per face of ring 31. When pressure is re eased 'from the operated key, the operated combination bars ,5 return to normal by yoke 88 and spring 93 and contacts 94 and 95 separate, thus deenergizingmagnet 26. 'When magnet 26 becomes thus deenergized, spring '39, acting; through arm 37, pawl ,36,"and ratchet 35, will cause the sprocket wheel 33 to rotate the ring31' in the direction of the larger arrow Fig. 1, or in 'a clockwise direction, the'IdiStance of one space; that is, the distance of one radial line of pins 41 to the next,

thus'bringing-a; new line of pins in the setting positron. The ring 31 thus rotating carries the'ar'm'56, along with it, the angular relation of this arm toy-said ring always "remaining: the same, independent of fthje operation of-ma net 63 is not operat1ng,'or in other words, when not transmitting. Arm 56in being ct 26, provided magthus moved, winds up the: spring 77.

@Magnet63 is energized at regular inter-- vals, as brush 104 sweeps segment 108, and eac'h time so energized will cause sleeve 57 nabuoo and arm 56 to descend, at which time stud 58, acting through bell-crank 64:, sends link 67 to the right, Fig. 2, and in so doing lifts pawl 71 out of the teeth of ratchet 72 and allows spring 77 to rotate arm 56 a fractional part of a step in the direction of the smaller arrow' Fig. 1. As the brush 104 passes from segment 108, spring 59 causes sleeve 57'to rise This permits the spring 7 1 to pull arm 67 to the left, Fig. 2, thus causing pawl 71 to again engage ratchet 72 and lock the arm 56 against movement relatiVe to ring 31 until the magnet 63 is again energized. In its step-by-s'tep motion, .arm 56 travels a fractional part of a step when it descends and completes the step when it rises.

If, when arm 56 is rotated one ste in the counter-clockwise direction indicate by the smaller arrow, Fig. 1, as above described, there are any pins 41- protruding above the upper face of ring 31, these will be engaged by the lower ends or fingers of contact levers 49, whereupon the said-levers will be rot'ated on their axes and the corresponding contacts 42 operated.

Magnet 63 remains energized during-the whole time that brush 10$ passes over segment 108, so that the transmitting contacts are set during the entire time'of transmission. .When magnet 63 becomes deiinergized, arm 56 is raised by spring 59, and

. pawl71 falls into the next tooth of ratchet 72, and said arm is advanced another space and is in position to transmit the next signal. In other words, after each transmission, the lower ends of transmitting levers 19 leap overthe ins 41, which had pre' yiously operated t em, into position to be operated by the next adjacent row, of pins.

As the pins 41 come successively over the extension 83 of lever 82, they are returned to normal as hereinbefore described.

It will be seen from the foregoing de scri tion that the operation of setting the com inations is entirely independent of the operationof transmitting, so that either one may be taking place independently of the other, or both together at the same rate or at-difl'erent rates. The operator merely sets the signals. The machine stores them and automaticallyxtransmits them. The ring 31 is made of such size that the operator will beallowed ample time for any ordinary (lolays or interruptions: I As hereinbefore etated, this rin' containsj'fin the' machine' herein describe 216sets ofpins {41 j allowin for six characters to a wordg this nieanslit at the. said ring willcontain about thirty six words, so that if the operator worked faster than the transmission and completely filled the ring with signals to be transm tted, and the transmissio were athirty. six words per the then" be {idle for 'a whole minute at a time without impairing the line switch 115 operated as hereinafter described, 'by-magnet 26.

"The back coil terminal of relay 113 is connected to another insulated spring contact 116 of said switch, while both coils receive current from a conductor 117 tapped on to the coil circuit of said relay at 118 and connected to the positive main 110 through a suitable resistance 119.

Switch 115 is provided with an intermediate sprin contact 120 adapted to move between an alternately engage contacts 111 and 116, but normally held under tension against contact 114 by an insulating stop 121 fast on the plunger rod 25.

The forward contact 122 and ton e of relay 113 are iii' series with the coils o magnet 26 from the local supply mains 110 and 111, in which circuit is also connected a suitable resistance 123.

tacts 114 and 120, and will close 'its forward contact 122, thereby energizing magnet 26, whereupon said magnet will push its plunger 25 the limit of its motion, since the tongue'of relay 113 will notreturn until contact 120 engages contact 116.

The tongue of relay 113 isreturned to its back stop on the closure of contacts 116 and 120.

For the purpose of automatically stopping the travel of arm5$ and thereby stopping the setting of contacts 42, when the transmission has caught hp with the setting operation, that is when the transmitting carriagehas gotten around to a point where t transmits the signals immediately set up, there is provided, among other parts, a switch 124 having two insulated spring contacts 125, and 126 secured. to the machine frame and so locatedthat when the part, an insulated finger thereon will strikes-a roj actionspring 125 and-- "open said switch. 1

Contact spring 126 of this switch is lele'c trica-lly. connected through a hand operated switch 128. t o..a terminal of the forwardieoil springvl25 is electrically connected. to an takes the place of ring 106.

Segment 130 is -so located that. brush 12B ,of a. polarized relay: 129, while contact 104 will arrive on it just before brush 100 reaches the first segment in ring 98. An-

mitting segments in ring 98.

Between the front and'back coils of relay 129, the magnet coil circuit of the relay is.

tapped by a conductor 133 which connects through a suitable resistance 134 with the positive current supply main 110. v

The tongue of relay 129 is connected t6 negative main 111, and the forward contact of said relayis connected though coils of magnet-63"and a resistance 135 with the positive main.

Relay 129 is employed in order to prevent the opening of switch contacts 125, 126, from interfering with the transmission of magnet 63 were opened by switch-124 di signal and consequently cause an error. Since therelay 129 cannot act to either open r close the circuit of magnet 63, except ust before or just after a signal interval, owing to the disposition of segments 130 and 132, the signatwillfeither be. transmitted completely or not at all. a

As long as switch 124 remains closed, magnet 63 is energized once on each revolution of brushes 104, 105, as brush 104 engages segment 130, and the tongue of relay 129 is returned to its back stop on every revolution of 'said brushes as brush 104 engages segment 132. l

When finger 127 on the transmitting carriage engages extension of spring contact 125, however, the circuit'of the forward coil of relay 129 will be broken, so that transmission will be automatically stopped.

'When the transmission has caught up with the setting operation, that is, when the transmitting carriage has gotten around to a point where it transmits'the signalsv immediately set up, and the keyboard operator desires to get a lead on the transmission, he may open hand switch 128, and continue the operation of the keyboard; Opening switch 128 breaks the circuit of magnet '63 and therefore stops transmission; When the op erator has stored up the ;desired quantity of signals he may then closeflswitch 128, when the transmission will. ,belresumed.

The rotar distributing device or sun'- flower, whie actually in sion, is in many of th a master transmitter.v

Having now describe specific apparatus em I I it should be 'understoodflthfit ble to considerable m tionwithout exaims denominated es the transmis-z,

this is suscepti-'- t'neans being mutually independent.

I 2. Transmitting apparatus for electric telegraphs, comprising a series of groups of movable elements, mechanism for setting said elements in code combinations according to the signal to be transmitted, signal transmitting means, and automatically act ing means to effect relative motion between successive groups of said elements and said a signal already started. If the circuit of combination of elements set for any given rectly, this might occur 1n the middle ofa ransmitting means to operate the latter, the

signal acting upon said transmitting means simultaneously.

3. Transmitting apparatus for electric telegraphs, comprising a series of groups of movable elements, mechanism for setting said elements in code combinations corresponding to the respective signals to be transmitted, signal transmitting means, key

controlled mechanism adapted to bring said groups of elements successively into opera" tive relation with said setting riiechanism, and electrically controlled means to elfect relative step-by-step motion between said elements andsaid transmitting mechanism to operate the latter, the timing of the operation for said setting mechanism and said electrically operated means being mutually independent.

4. Transmitting apparatus for electric telegraphs, comprising a series of groups of movable elements, a common support therefor, mechanism to set said elements of the respective groups in code formation corre sponding each to a combinatidn of impulses forming an individual character signal, a second support relatively movable with respect to the first mentioned support, a group of elements moval lly mounted on said sec ond support, means to bring the elements upon the two relatively movable into operative relation, mittin mea'ns. operated tion 0 the elements on tivelvmovable supports.

5. Transmitting apparatus for electric telegraphs, comprising a series of groups of movable elements, a common support therefor, keycontrolled power operated mechanism to set said elements of the respective groups in code formation, a second support relat vely movable with respect to the first mentioned support, a group of elements and signal transby the conjoint. ae-

the two said role;

lit)

supports cessively into operative position to be set, and signal transmitting means operated by said elements when set. i

15. Transmitting apparatus for electric telegraplis, comprising a series of groups of movable elements, mechanism for setting said elements according to the signal to be transmitted, signal transmitting means, power means to ,efiect relative motion between successive groups of Said. elementsand saidtransmitting means to operate the latter, and periodically operating electrical means acting only after impulses corresponding to a complete signal have been transmitted and before the first impulse'for a succeeding signal has been transmittedto effect the operation of said power means. I?

16. Transmitting apparatus for electric 4 telegraphs, COIIIPI'ISIIlg a series of movable elements, mechanism for setting said elements in code combinations according to the signal to be transmitted, signal transmitting mechanism, means to efl'ect relative motion between said elements and said transmittin mechanism to operate the latter from sai ments, means comprising a member havin' a uniform movementiindependent of said e ements and acting at regular intervals, totime the operation at said transmitting means,v

the operation 0f said element setting meclr anism and'thesaid means being mutually independent, and means to automatically restore. said elements to normal. q

18. Transmitting apparatus for electric telegraphsgcompnsing a rotatablymounted, plate, a series ofgroups of-elements movablr meant-ed vo! .said' plate and arranged. to?

travel inc -circular path; a keyboard, sele'ctive mechanism operated b said'ke board to set said elements-in accor anoewit jthjcfsig nal to be transmitted, mechanism; including an clectro magnet to impart step-by-step rotary otion tofsaid'plate, a contactcarrying carriage, an'angularly movable for said carriage, means including agsprmgunder tension tending to-lmove said carriage -.snpport counter to tl1e"'moveme1'1t of sandfiiat'e to bringisaicl contacts into operative relation with said, groups of elements. successively, an electro-magnet, an escapement cooperating with said spring to operate said carriage support, and means to periodically energize said magnet.

19. Transmitting apparatus for electric have been transmitte impulse of a succeeding signal. has been telegraphs, comprising a series of groups of signal controlling elements, mechanism to selectively operate said elements, according to the signal to be transmitted, means controlled by said elements for transmitting '70 electrical'si a1 impulses, a magnet also eontrolling said signal transmitting means, and means operating said magnet only-after im-. pulses corresponding to'a compl te signal ave been transmitted and before\ the first signal h s b'en impulse for a succeeding transmitted.

20. Transmitting apparatus for electric telegraphs, comprising a series'ofgroups of movable elements, means 0 eratlve upon successive groups of said e ements to set them in varying code combinations, each combination corresponding to a signal to be subsequently transmitted, a group of'mov able elements correspondin in number to those constituting the individual groups of the first mentioned elements, means con trolled by the first mentioned elements, one group at a time, to arrange the second mentioned elements in successive code formations corresponding to the arrangement of the elements in the respective groups of the first mentioned elements, means to render 'said arranging means operative only in the the first mentioned elements,

21. Transmitting control of the second mentioned elements by a apparatus for electric telegraphs, comprising a series of movableelements, mechanism for, setting said elements according to the signals to be transmitted, electrical signal transmittin means controlled by said elements, and e ectrical means comprising a switch acting only after impulses correspondin to a complete signal and before thefirst transmitted to efl'ect relative movementbetween saidtransmitting means and said ele ments; j g

22. Transmitting apparatusv for electric telegraphs, comprisin a serids of groups of movable elements, a keyboard, mechanism forming operative connection between the keys of said ke board and the said elements for operating e ements of each group in code combinations corresponding to the signal to be transmitted, a group of transmitting elements, means to bring said groups of transmitting elements into engagement with said groups of movable elements and so set said transmitting elements in said combinations, and means acting subsequently to transmit the signal. s

23. Transmitting apparatus for electric telegraphs, comprising a, series of movable elements, mechanism for setting said elements in code combinations corresponding to 35 .tive connection between said keyboard and movably mounted on said second support,

automatic means to brin the elements upon the two relatively movab e an ports into operative relation, and signs means operated by the conjoint action'of the elements on the two said relatively movable supports. A

'6. Transmitting apparatus for electr1c. telegraphs, comprising .a its board, permutation mechanism operated t ereby,. a ser es of groups of movable elements,,mpans con n e trolled by said permutation lneiihl set said elements in the indivldual groups in various combinations,;a common sup ort transmitting for all said elements,mea'ns controlle by said keyboard to cited; relative motion between said support and said element setting 1 means, a series of-members corres nding n number to the elements in eat: of 581d groups, a carria e sup orting said members,

a mechanism toe ect re ative motion between naling transmitting means operated by said members.

said support and carriage to bring the members on said'carriage into operative relat on with successive groups of elements carried by said common support, and electrical sig-.

7. Transmitting apparatus for electric telegraphs, comprising a movable supportingl member, a series of groups of elements mov-.

ably mounted on sand member, the number of, said ele'ments'in each group being'thesame and corresponding respectively to impulse periods allotted the respective signals, a keyboard, mechanism forming operaelements to set said elements in the respective groups in code combinations corresponding to the impulses which go to form given signals, a series of contact operating members adapted to be operated by said elements when set, and mechanism for efiecting relative step-by-step movement between said movable supporting member and said contact operating members to eifect the operation of the latter.

8. Transmitting apparatus l for electric I telegraphs, comprising a series of groups of fof'said elements s1 movable elements, a keyboard, mechanism forming operative connection between the keys of said keyboardtand the said elements for operating said groups ofelements successively and the elements of each sepsgate,

ha 51 gm" minis-nee" ultaneoasl-y into opera+ tive. relation with said transmitting means.

"9. Transmitting apparatus 'for' electric telegraphs, comprising a movable web or plate, a series ofroups of Ipins movably mounted on said p 'ate, a ke oard, mochanism forming operative connection between the keys of saidke board and the said pins for operating .sai groups Lof pins succesplate', a sen r mounted on said p ate, akey card, mecha- V nism forming operative connection between a to move sai carriageiiinn opposite direclatter, and mechanism to automatically stop ating said contacts sively and the pins in each cup in combinations corresponding to t c slgnal to be transmitted, a series of electrical contacts operated by said pins, a carriage carrying said contacts, and mechanism to move said carriage in an o posite direction to the movement of said we or late and thereby cause the operation of said contacts by sa d pins.

10. Transmitting apparatus for electric telegraphq compr1sing a movable web or oups of ins movably tion to the movement of'said web or plate, and electrically controlled means operating independently of the time of operation of said keyboard to control the operation of said carriage operating means.

11. Transmitting apparatus for electric telegraphs, comprising a series of movable elements, mechanism for selectin said elements in code combinations accor ing to the signal to be transmitted, power operated means to operate the elements selected, and means controlled by said elements to trans mit the signal selected.

12. Transmitting apparatus for electric telegraphs, comprising a movable web, a series of groups of movable elements mounted in said web, means including permutation V mechanism to operate vthe elements of each separate grou 1n combinations corresponding respective y to individual character signals to be subsequently transmitted, signal transmittingmcans controlled by said elements, means to effect relativet'step-by-step motion between said elements and said transmitting means to effect the operation of the said movement.

13. Transmitting apparatus for electric I telegraphs comprising a series of transmitting switch contacts, a controller for oper- 1 d and movable relative ytoe cots-aid motion, ycoperate'd-means cooperating with said sprin to effect said motion.

14. Transmitting apparatus for electric teleg'raphs, comprising a seriesgof ,grou s of movableelements, a common support t 1amfor, key controlled mechanism to set said elements accordingto the signal to be transmitted, an" electro-niagnet '.-controlledfrom 1 Said k y eh ei m-wfipe a nsj w hae magnet o bone e iss e a:

inga s ring under ten-' the respective signals to be transmitted, elec tric signal transmitting means controlled-by said elements, means to bring succeeding elements into operative relation with said transmitting means, and means acting after said elements have been brought into operative relation with said transmitting means, to time the si als.

24. Transmitting apparatus for electric telegraphs, comprising a magazine having a plurality of members movably mounted therein and operable at an arbitrary rate as compared with that of the'line transmission to store'up in said magazine signals to be subsequentl transmitted, circuit controlling means, and a member having a uniform movement and acting to effect coaction at regular intervals between said signal storage members and saidcircuit controlling means.

25. Transmitting apparatus for electric telegraplis comprising a magazine having a plurality of members movably mounted therein and operable at an arbitrary rate as compared with that of the line transmission to store up in said magazine signals to be subsequently transmitted, circuit controlling means, and means to effect co=action between said storage members and said controlling means at regular intervals, said means in eluding an electric circuit, a contact therein, and means to operate said contact at a uniform rate independent of the rate of operation of said members in storing up the signals.

26. Transmitting apparatus for electric teleg-"aphs comprising a main line, a series of branch circuits, a switch contact in each of said branch circuits and means to operate said contacts to connect said branch circuits successively to the main line and at regularly recurring intervals, a second switch contact .in each of said branch circuits, a magazine comprising a supporting member and a .plu-

rality of impulse selectors novably iounted thereon and adapted to contrdl th operation of said second mentioned contacts, mechanism to eifect coaction between said impulse selectors and. said second mentioned contacts at. regularly recurring intervals, and means operable independently of the rate of operation of said second mentioned contacts, .to operate said impulse selectors to store the signals to be subsequently transmitted.

27. Transmitting apparatus for electric telegraphs, comprising a magazine havin a series of elements movably mounted therein, means to set said elements in code combinations corresponding to ,the respective signals to be transmitted, a second series of elements, means to effect relative movement between said two series of elements to efl'ectielements set in the first series, means to render said second series of elem'ents inoperasaid two series of elements to effect opera' tion of the second series by the first series in combinations corresponding to the elements set in the first series, means to render said second series of elements inoperative by the movement of the first series at will and independently of the operation of setting the first series, but only after the complete signal corresponding to the combination already set has been transmitted, and signal transmitting means controlled by said sec ond series of elements.

29. In a'telegraph transmitter, a movable carrierggroups of circuit controllers carried thereby, keyboard selecting mechanism to set. the circuit controllers in transi'nitting position, a transmitting lllilCi carrying a group ofcircuit clesei's and means to bring into engagement said groups of circuit closers with successive groups of circuit controllcrs, a master transmitter comprising contact devices separately connected to the circuit closers for transmitting impulses therefrom to the line in substantially reguin r succession. I

30. In a telegraph transmitter, a movable carrier, groups of adjustable circuit controllers an-led thereby, a keyboard selecting 1110C iianism to set the circuit controllers in transmitting position, means for driving the inovable earricrstep by step, a transmitting head carrying circuit closers, said circuit closers engaging with successive groups of circuit controllers, and a master transmitter comprising. contact devices sepa--' i'atelyconnected to the said circuit closers to sucessively transmit impulses therefrom,

and means to control the actionof the trans-- the carrier-equal distances, the circuit of u said electromagnet being controlled from the keyboard.

32. In a telegraph transmitter, a movable carrier, groups of circuit controllers carried thereby, a keyboard selecting mechanism to set the circuit controllers in transmitting position, said keyboard including a univering the movable carrier against movement in either direction when the feedmechanism is at rest.

34. In a telegraph transmitter, a movable carrier, circuit controllers arranged in groups of unit length supported on said carrier, a transmitting head having circuit closers equal in number to the controllers in a group, means for advancing Said head into engagement with said controllers when the latter are at rest, andto hold said head in its advanced position until the impulses corresponding to the group of set controllers have been transmitted.

'35. In a telegraph transmitter, a movable carrier, circuit controllers carried thereby, a keyboard selecting mechanism to set the circuit controllers in transmitting position, and a depressing shoe operated from the keyboard to restore thecircuitcontrollers to non-transmitting position.

36. In a telegraph transmitter, aimovable carrier,- circuitcontrollers carried thereby, a keyboard selecting mechanism to set the circuit controllers in transmitting position, a transmitting head comprising a. group of circuit closers, an electro-magnet to bring said circuit closers into engagement with the cir cuit controllers, a, master transmitter comprlsmg contact devices, and contact devices connected individually tothe circuit closers, and a contact operated by the master trans} mitter to control the action of said magnet; 37. In a telegraph transmitter, a movable.

carrier, circuit controllers} carried thereby,

a keyboard selecting mechanismto set the; clrcuit controllers in transmitting position,

' a transmitting head carryinga grou .of circuit closers, a magnet to bring sai circuit closers into engagement with.v successive groups of circuit controllers, a circuit reaker included in the circuit of said sleek troagnet,-and means to control said cir-' cuit breaker by the transmitting head.

38. In a telegraph transmitter, a movable carrier, ad ustable circuit controllers carried thereby, a keyboard selecting mechathe action of the master transmitter on the transmitting head.

39. A magazine transmitter for electric telegraphs, comprising a storage member, a series of groups of permutation elements movablymounted thereon, mechanism to set Said permutation elements in the respective groups in code combinations, a transmitting head having'a series of contact controlling members one for each of said permutation elements in a group, mechanism to advance said storage men] er to brlng successive groups of said permutation elements into operative relation with said setting mechanism, and mechanism to move said transmitting headin an opposite direction to. the

' movement of said storage member to bring said contact controlling elements into operative relation with successive groups of said permutation elements to cause the set per.- mutation elements to act upon corresponding contact controlling'members to determine the transmission of the signal.

40. Transmitting apparatus for electric telegraphs, comprising a magazine having a series of elements mounted thereon, means to set said elements according to the respecfive-signal to be transmitted, means controlled by said elements to transmit electric .signals corresponding to the elements set, and means to allot equal time intervals to all the signals.

41-. Transmitting apparatus for electric 'telegraphs, comprising a storage member fhaving a series of elements mounted there- Qon, means'to set said elements according to successive signals to be transmitted, a master, ,transmitterv adapted to transmit successive signals corresponding to the elements set,

,and to allot equal time'intervalstd all the si als.

" n testimon whereof afiix my signature I in presence 0 two witnesses.

Witnesses:

Joan Hoornn, WALTER H. BmuNesLm.

' LOUIS MAXWELL POTTS.

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