US890911A - Printing telegraphy. - Google Patents

Description

No. 890,911. PATENTED JUNE 16, 1908.

' I. KITSEE.

PRINTING TELEGRAPHY. APPLICATION 21mm nm'm, 191:5.

No. 890,911. PATENTED JUNE 16, 1908. I. KITSEE.

PRINTING TBLEGRAPHY.

APPLICATION FILED DE 0 19 1905 3SHEETSSHEET 2 PATENTED JUNE 16, 1908. I. KITSEB.

PRINTING:v TELEGRAPHY.

APPLICATION FILED DEG.19. 1

I 905 3 SHEETSSHEET 3 W Wm specification.

. that advanta To all whom it ma concern:

ISIDOR KITSEE, OF PHILADELPHIA, PENN SYLVANZIA PRINTING TELEGRAPHX.

I No. 890,911.

Specification of Letters Patent.

Patented :a;ei1 11158;

Application filed December 19, 1905. Serial No. 292,520,

Be it-known that I, Ismon KITsn-E, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia. and State of Pennsylvania, have invented certain new and useful Improvements in Print,- ing Telegraphy, of which the/following is a My inventlon relates to an improvement in printing telegraphy. Its object is, to rint the. required characters with the aid im ulses ,sent over lines with comparative arge ca acity', such for instanceas submarinecab es. In organizing a system for such lines, it has to be taken mto consideration e cannot be taken of the dif-' ferent strengths 10f current nor of the differentlengths of the impulse,-for the reason that a large increase of stren' th is out of the and as such line's are usually'provided with question on such lines as su marine cables,

condensers and act in themselves as large condenser's, an-impulse impressed upon the .line'no matter for how long a time, will always actuate thereceiving instrument in a manner as'if this impulse would have been of short duration, for the reason that the condenser once filled w' be a,bar against the further how of the same polarity. It has also to be taken into consideration, that .to successfully work over a cable with comparative great speed; true reversals should-always be impressed upon the line, that is, an

- impulse of one polarity shall always succeed an impulse of o posite polarity. When, therefore, neither t e length of the impulse nor the strength of said im ulse nor the polarity of same can be change so as to difierentiate vice the armature of which rests always' between the different sequence of impulses necessary for each character, the only available means are to differentiate by the greater or lesser time-unit elapsing between one impulse and the second impulse and I have in the arran ement availed myself of 1 this method'as ater to be described. In such a system, it is advisable to'have as a receiving instrument a socalled polarized relay, adeagainst one or the other of the stops and remains" there till an impulse, opposite from the 1 last impulse,'compels the armature to leave itsrestmg place and move towards the op osite stop. With such a device, it is poss1 le sired length of time, even with an impulse of very shortest duration and I avail my- Self of this device to produce re'sults outlinedherewith.

Referring to-thedrawings: Figure 1 is a diagrammatical view of the entire receivin portlon of my improved printing telegrap machine; Fig. 2 an end elevation of't'he trans mitter;F1gI 3 a side elevation of the platen, type bar and means for operating bar"; Fig. 4 a diagram showing the alpha at and the manner in which the different im pulses are sent in order that the proper magthe type- V nets may be energized in the receiving mechv anism to select the predetermined character.

In these drawings A represents the cable, it being understood that the return of this cable is the ground, but, of course, an allmetallic circuit is not excluded. The impulses sent over this cable are alternately positive and negative.

B is the armature of a suitable receiving instrument, caused to travel in one direction under a positive impulse and in the opposite direction under a negative impulse.

B" and B are two contacts adapted to be contacted bythe armature as it moves backward and forward, both of said contacts are connected with one terminal of a magnet C, the other terminal of said magnet being connected to the armature B, in this circuit is included the battery C, thus each time the armature 1B is oscillated, the circuit is opened and closed, and this movement will actuate an armature lever C in one direction by" the magnet C and in the. o posite direction by a s ring, as shown. l ach time this circuit is c osed, the-lever C is ctuated and will operate upon a toothed-W112i D and move said wheel a distance represented by the distance between two teeth; this toothed wheel carries acontact point D. In reality this wheel needs ,to beprovided only with five teeth, because in this my arrangement,

each character will be formed through four impulses, but in the drawing I have illustrated. this, wheel as to be provided with twenty teeth and four contact points., one contactpoint for each five teeth, for the reason that, mechanically considered, a large wheel whichmakes .less revolutions stands Wear andtear'better than a smaller,

one-With increased speed I As stated, for each character to be rinted, Iimpress uponthe line four1 imp ses' and differentiate these impulses :by the; time elapsing between the impression upon the line of two impulses. Normally thesarmarotate the Wheel D another point and bringthe contact point D underneath and in corn tact with the strip 2; this will establish a circuit through the magnet E of the second step-by-step movement. Then the next impulse in the same manner will bring the con- --tact point D in contact with the strip3, and

this will establish a circuit through. the magnet E of the third step-by-step movement.

Each of the magnets E, E and E are provided withflarmatures which are caused to moveat a predetermined speed, and these armatures are secured to a pawl adapted to operate the ratchet-wheels E and as these pawls will move a given number of times during a certain space of time, the distance the.

wheel E will be rotated will depend upon the length of time between the impulses. These wheels 4 are rotated against the actions of springs E pawls N holding the wheel E against retrograde movement. Each wheel E is provided with a contact point E".

'As stated before, the difference in time between the four impulses impressed upon the line for each character determines which magnets shall be energized, and therefore what character shall be selected-to be printed. There are three different variations that are made in the time between the im ulses, and the shortest space of time will, 0 course, be, the unit, therefore if the space of time between the first and second impulse is represented by one unit of time, the circuit through the magnet E and battery F will only be established long enough so that the wheel E will move a sufiicient distance to bring the contact point E into contact with the strip 1, then the next movement of the wheel D brings the contact D in. contact with the strip 2, and will establish a circuit through the ma net-E, and'if the space of time bev tween t 1e second and third impulse is equal say to two units of'time then the wheel E of .the second step-by-step movement will be rotated a sufficient distance to bring the contact point E in contact with the strip 2, and

then upon the next orthird impulse the con-' tact point D will be in contact with the strip 3, and therefore the circuit will then be made through the magnet E of the third step-bystep movement, and if the space of time between the third and fourth-impulse is equal to three units then the wheel E of this third step-bg-step movement will berevolved' a sufficient distance to bringits contact point in contactwith the strip 3. Thus it will be seen that it depends upon the space of time between the first and second, second and third, and third and fourth impulse to determine which one of the three strips of each step-by-step movement will be brought into contact with the contact points E.

It will be seen by Fig. 1, that the contact strip 1" of the first step-by-step movement is connected to the magnet 7, the second strip of this same movement being connected to magnet 8, and the third strip of this same movement connected to magnet 9. The first strip 1 of the second step-by-step movement is connected to magnets 10 of the second series of magnets, the strip 2 of the second move-- ment is connected to magnets 11 of the sec ond. series, and strip 3 of the second movement is connected to magnets 12 of the second series. The strip 1 of the third move ment is connected to magnets 13 of the third series, strip 2 of the third movement is connected to the magnet 14 of the third series, and strip3 of the third movement is con.- nected to magnet 15 of the third series. The other terminal of each of the magnets 7, 8, 9, 10, 11, 12, 13, 14 and 15 are connected to a return wire which extends to the strip 4 of the wheel D, and as the contact point D of the wheel D is connected to one terminal of the battery F, and as the other terminal of the battery F is connected to all of the contact points E of the Wheels E when the contact point D comes underneath the strip 4 on the fourth impulse a circuit will be established through whatever magnets are connected iii-the circuit by reason of the contact. points E being underneath one of the three strips 1.,2 or 3 of the different step-by-step movements.

The first series of magnets consists of three magnets, each one of the three magnets be ing connected to aseparate strip of the first step-by-step movement; the second series of magnets consists of nine and are divided into three roups of three each,'all of the magnets of eadh group being connected to different strips of the s'ecoridstep-by-step movement;

the third series of magnets consists of twentyseven divided into three grou s-of nine magnets each and. the magnets 0 each group are connected to the three diiferent strips of the three step-by-ste,p movements, thus it will be seen that if the contact point E stops underneath the first strip of the first movement, under the second strip of the second movement, under the third strip of the third movement, then when the circuit is established on the fourth impulse the magnet 7 of the first series will be energized, magnets 11 of the second series energized, and ma nets 15 of the thi id series energized. Each 0 the magnets from 7 to 15, inclusive, are provided with armatures F, F and F, which are normally held. away from the magnets by sprin s or other means, but when. attracted towar the" magnets are adapted to come in contact with contact points, which in the first series-are G, G an G, in the second series are lettered H to H inclusive. Thecontact pointG which is; adapted to be contacted by the armature of the magnet 7 is electrically connected to' the armature of one ma net; in

- each of the three groupsin the secon series,

" and the contact point G is also connected to one magnet of each of the three groups of the second series, as is also the contact point G The contact points Hto H of the second series-are each connected to the arr'natures-of three magnets of the third series, each con- ;tactpoi'nt being connected to the armature that is, each. second series. being connected to the armatures of three of onemagnet of each group, one of'the contact points of t e magnets lettered 13, 14 and 15, andeach one of the contact points. of the three series is 'e'lectricall connected to bne terminal of magnets which serveto operate the typethe other terminal of said magnets K .connected to the return wire, which return. wire extends to one terminal of aTbattery K the other terminal of said battery being electrically connected with the arma ets 7, 8 and 9. Thus it mentswere so actuated that the magnets 7, 11 and 15 were energized, then the current would flow from one terminal of the battery K 'through the armature of magnet 7 to con- .tactpoint G, through the armature ofrnagnet 11 to contact point H, through the ar-' mature of magnet 15 of the. third series tothe return wire, and thus the letter F will be printed and no other. This circuit in which the battery Kis located is normally broken,

andis only closed when the contact oint D is upon strip 4 as the magnet J is inc uded' in the circuit in which are also included the ready for the next four impulses, representing magnets 7 to 15, inclusive, and when the magnet J is-ener ized it, will attract an armature J which wil make contact with the contact oint J thus establishing a circuitfrom the attery K Included in the circuit of thebattery. K are also the magnets N and L, thus simultaneously with theprintin'g oi the character described, magnets- N and I v will. be energized, the magnets N attracting v toward them the armatureawls N, releasing the ratchet-wheels allowing the Y 3 rings E to return these ratchet-wheels to t eir normal position, and theinagnet L'will attract the armature pawl N-toward itself, and this armature pawl will revolve the wheel. D still another point, brin ing the con tact ointD' out of contactwith all of the circuits, and the parts will %)6 returned to'their normal positions brea then all the next character. i v r I In Fig. 4, I have shown a diagram which illustrates how the different units of time em- 'wheel' the strip-4, .gr

ployed between each impulse can be made to select any one of the twe11ty seven charac M tersi It is to be rememberedthat the difien ent spaces of time between the. first and second impulse will determine whiclistrip of the first step-by-step movement the contact point is to'conta'ct, the. space of'time between the second and third" im"pulse-will determine which strip of th seec'na step-by step movement the contact point is to come incontact with, and the space of time between the third and fourth impulse will determine which of the threestri s of the third ste -by-step movement is to e contacted, an by. the arrangement of the electricalconnections' between the armatures of the magnets itwill be easily seen how the different characters .are'se'lected. I

Any suitable means can be utilized for transmitting. the message, the only stipulation being that said means shall send four impulses and the proper intervals of time shall 'elapsebetween each impulse, according to the key that is operated. There are numerousways in which this can be accomlished, one of which is shownin'Fi 2 of the naming, in which 0 consists of a 1'0 er which is adapted to be rotated at. an even rate of speed through gearing O by .a suitable motor P. f 1

P is a one-toothed ratchet-wheel located upon the shaft of one ofythe wheels of the motor orupon the shaft of the roller fi'if -de' sired; the motor is normally held stationary by a pewl Q, which engages this ratchet- R is a key representing one of the characters, this key eing secured to alever R, When one of the keys is de ressed, thelever to which said key is secure will strike'a bar. It raisinigra plunger R which will removethe pawl Cg? om engagement with the ratchetwheel and the motor will. startand re.-

volve the roller 0; after the roller- 0 and its periphery twenty-seven sets 0 contact I points, each set consistingyof four contact points lettered S,. S, S and S the first and third contacts, or those lettered S" and S of each set isconnected electrically with the positiveter'minal ofa'battery U, and the second and fourth contacts of eachset ,are

electricallv connected with the negative ter= minalor attery-U, the other. terminals of both of these batteries being connected'to. the

nected' to; the battery through the agency. of

ringsS and S" and brushes-T and a Vis a pivoted contact leverior brush; 4V5? is a spring which tends: to. ress 'saidcontact ound. These contact points S are conlever toward the roller 0 2 is a one-toothed ratchet disk secured to the letter V, and W is will I following the alphabet is a star such charac- ,terization is also arbitrary instead of a a spring pawl engaging the tooth of this ratchet disk and normally holding the lever V out of contact with the roller 0. There is one of these levers V for each character represented, or each set of contact points upon the roller 0, and there is also one spring pawl W for each lever. When aparticular key is depressed a lug R upon the rearward end of the key lever will strike the pawl W and this particular character will raise the pawl and allow the spring V to, press the lever in position to contact the contact points 11 on the roller, and as the lever V is electrica ly con-,-

nected with one end of the cable A, and as the other end of the cable is grounded, each time a contact point passes the lever V an impulse will be sent over the wire, the positive and negative impulses alternating, and when the last contact S strikes the lever V, this contact being longer than the others, it press the lever V downward in such a position that the spring pawl IV can engage the tooth of the ratchet disk V and thus return the lever V to its normal position; the distance between the contact points .upon the roller 0 will determine the different units of time between the impulses.

. In Fig. 3, I have 'shown the simplest form of printing, X representing the platen similar to an ordinary typewriter; X the type-bar; Y a lever provided with an armature Y adapted to be attracted by one of the magnets K, and this lever Y is connected to the type-bar by the link Y I have in Fig. 4, as stated in the description of the drawing, illustrated a schedule of timerunits, by which letters of the alphabet may be differentiated. I have not in this schedule taken into consideration,as in practice it should be-the frequency with. which certain letters are used in telegraphing, so as to characterize these letters by the shortest time-unit. But it is obvious that, as the arrangement outlined in Fig. 4 is onl arbitrary, the time-units between the different letters may be changed.

It will be noticed that one of; A h

star any other emblem maybe substituted; The reason for this character is as'follows .To differentiate through four; impulses the different letters and to be enabled to use the last impulse; as an impulse to return all receiving devices to their normal zero position, only twenty-seven characters could be secured, and as the numerals are not included in these twenty-seven characters, I have recourse to the following methodz To tel'e-,

graph a numeral it is necessary to first send the impulse characterizing a star and then send at once, Without any space intervening, a letter representing the numeral, for in this system each letter of the al habet represents a numeral equal to the position of this letter the drawing illustrated the magnets as stepby-step movements, but it is'obvious, as only three differences in time-units are used, these time-units may be taken care of by ordinary electro-magnets working in a quick or sluggish manner.

Having now described my invention wha I claim as new and desire to secure by Letters Patent is:

1. In submarine telegraphy the method of actuating a printing device at a receiving station, which consists in causing to be selected, through impulses of alike duration and intensity, following each other in unequal succession, the required printing type and causing through an additional impulse the re ceiving mechanism to return to its normal position.

2. In submarine printing telegraphy means to transmit impulses of the same duration and intensity but alternately of opposite direction and means at the receiving station to print for each three of said impulses received the desired character, in combination withmeans to return the receiving mechanism through an additional arrived impulse to its normal condition- 3. In submarine telegraphy means at the transmitting station to transmit a combination of. three impulses, the impulses following each other in unequal succession, andv means to transmit a fourth impulse apart from said three impulses, in combination with means at the receiving station to select and print the desired character through said impulses and return the mechanismto its normal position. V

4. In printing telegraphy, a transmitting and receiving station, the transmitting. staprint the desired character through the first named impulses and provided with means to return the printing mechanism to its normal position through the second named impulse. In testimony whereof I afiix my signature in presence of two witnesses,

. ISIDOR 'KITSEE.

Witnesses:

ALvAn RITTENHoUsE, MARY 0. SMITH.

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