US1669953A - Sound-printing machine - Google Patents

Description

May 15. 1928. 1,669,953

J. P. TARBOX SOUND'PRINTING MACHINE Filed v 12. 1 l2 Sheets-Sheet May 15, 1928. 1,669,953

J. P. TARBOX SOUND PRINTING MACHINE Original iled Nov. 12. 1921 12 Sheets-Sheet P INVENTOE. 3%

May 15. 1928.

. 1,669,953 J. P. TARBOX SOUND PRINTING MACHINE Original Filed NOV. 12. 1921 12 Sheets-Sheet 5 INVEHTOE.

May 15, 1928,

-J. P. TARBOX SOUND PRINTING MACHINE Original Filed Nov. 12. 1921 12 Sheets-Sheet '4 R m N E V m May 15, 1928. J. P. TARBOX SOUND PRINTING MACHINE 2 Sheets-Sheet 5 Original Filed Nov. 12, 1921 IN V EN TOR' May 15, 1928.

J. P. TARBOX SOUND PRINTING MACHINE 1921 12 Sheets-Sheet 6 a? INVENTOR v YN OriginaIFiled Nov.

May 15, 1928.

J. P. TARBOX SOUND PRINTI NG MACHINE Original Filed Nov. 12. 1921 12 Sheets-Sheet 7 m ill; a ,7 m. 1 51 mnn mum

IN VEN TOR May 15, 1928.

J. P. TARB OX SOUND PRINTING MACHINE l2 Sheets-Sheet- Original Filed Nov. 12. 1921 May 15, 1928.

J. P. TARBOX SOUND PRINTING MACHINE l2 Sheets-Sheet 10 Original Filed Ncv. 12. 1921 v v 3m mmw w WW? I INVENTOR J. P. TARBOX SOUND PRINTING MACHINE May 15, 1928. 1,669,953

Original Filed Nov. 12. 1921 12 Sheets-Sheet 11 IN V EN TOR May 15, 1928. 1,669,953

'J. P. TARBOX SOUND PRINTING MACHINE Original Filed Nov. 12. 1921 12 Shefs-Shet 12 IN VEN TOR Patented May 15, 1928.

PATENT OFFICE.

.romv P. TARBOX, or GARDENCITY, ivnw vonx.

SOUND-PRINTING MACHINE.

Original application filed November 12, 1921, Serial No. 564,621. Divided and this application 'filed January 1, 1923. Serial No. 610,083.

My invention relates to what I term a sound printing machine, that is asystem of printing through a control exercised by a device responsive to tone signals. These signals may be i of any chosen character whatsoever, code or otherwise. In it the signals are sufliciently diilerentiated by characteristically different frequencies or otherwise to bring about each the response of the diflerent portions of the control mechanism employed. By proper division of the chosen signals into groups and syllabic subgroups, the printing may take the form of code words, phrases and sentences, and may be divided into paragraphs and epistles. Suitably manually operable keys are provided for use when desired as an alternate or a conjunctive agency to the signals. Moreover, the arrangementof the control mechanisms is such that they may be grouped together for compound control by several signals of a singleprinted character, by means of which the printed code may be punctuated, and use may be made therein of numeral and figure characters. Still further mechanisms are combined with the foregoing for the dating and initialing, both for addressor and addressee, the number of pages, for record feeding, and the making of duplicate records.

My invention is shown diagramatically in the accompanying drawings; 1

Fig. 1 shows diagrammatically the typewriting mechanism per se including the carriage, the type bars, actuating elements therefor, and auxiliary controlled and con trol devices;

Fig. 2 shows What I term the register mechanisms, and the page numbering de- 3 shows additional register mechanisms and the normally operable control. keys of the machine;

Fig. 4 shows one form of voice operated control device, or what I term a primary vibrational control element;

Fig. 5 shows anotherform of the same;

Fig. 6 shows the circuits of the dating and initialling devices; i

Figs. 7 and 8 are sideelevation and trans verse section respectively of an element of the register mechanism.

Fig. 9 is a longitudinal vertical section of a primary vibrational control element.

Fig. 10 is a similar section of another form of the same;

Fig. 11 is a front elevation of a diaphrag used in the form of Fig. 9.

Fig. 12 is a longitudinal vertical section of still a third form of the type of Figs. 9 and 10;

Fig. 13 is a diagram of an intermediate register system making use of successively acting relays;

Fig. 14 is a diagram of change spelling connections which may be used if desired;

Fig. 15 is a front elevation of a proposed special form of typewriting machine for this work; I

Fig. 16 is an end elevation of the same,

Fig. 17 is a schematic view of the details of the type bar mechanism;

Figs. 18 to 21 are respectively diagrams on a large scale of the primary contact banks in certain step. by step switches used in Figs. 2 and 6.

This application is a divisionof my application S. N. 564,621, filed Nov. 12, 1921,

and is directed particularly to those forms of the tone operated control device shown in Figs. 1 and 5 and someother features not covered in the patent application such the change spelling connections of Fig. 14. These tones may be produced by the human voice, or by any other means, and wherever in this specification the word voice is used, it is understood in this sense and understood that it' is intended to produce tones. On the other hand, it is recognized that there are other characteristics of phonetics.

In Fig. 1 C designates the carriage and platen of any standard typewriter, and B-B are the horizontal type bar beams, shown in sect-ion. To these the type bars are connected as usual. The carriage and platen C are shown as the traversing elements of the machine. If desired instead the has ket of type bars may be made the traversing element. This has the advantage that the automatic feeding of paper to the platen from rolls and duplicating by a continuous band of carbon, as shown in Fig. 16, is not interfered with. i I

The carriage is traversed to the left by primary register PR. Four trunks to t have contacts 0 to 0 in devices D, and are controlled by a contributing switch DS Cam shafts w: is stepped by device DD governed as before by contacts cal in devices d. Shaft ls however is not driven from distributing devices DS, but is oscillated. by magnet am. The function of this portion of the secondary register SR is to register the initials of the addressee and thereafter effect the impression thereof on each page written. A device D is provided for each letter of the alphabet as in the case of mechanism PR.

Two or more devices DD shown on the right hand are permanently associated with the special trunk S25 of the group t" to If, and the connection is made by these devices D inaccordancc with the control of page numbering switch PS. A special. oscillable release shaft at is operated by magnctmo. The function of this portion of the'device is to successively number the pages written. Fig. 4 shows one form of primary vibrational control. element. It comprises a special transformer F, and associated primary transmitter T controlled by relay transmitter T, circuit PG and resonant secondary circuits so. The secondary so govern relays Re, which in turn control the magnet Rm of register devices D (Fig. Circuits so are each tuned to respond to a characteristic sound signal, differentiated by frequency, or otherwise, various combinations of resistances, inductances and capacities being used for that purpose as shown. Any combina tion found suitable may be used in any circuit. The coherers (:0 associated with these circuits may be of any known. type, and decohering (if necessary with the type) accomplished in any known way. i

Ke s A. B .3 etc. are )rovided on the.

. i a 1 l register side of relays Rc for the manual. operation of the machine, and keys 7 on the transmitter side for manual operation thru relays Re.

The mechanism SM at the lower right the spacing and syllabizing mechanisn'i which is operated altogether automatically. MG is a motor generator set of small size furnishing current for the operation of the various devices of the machine by positive and negative bus wires PB and NB. I v

The mechanism DA of Fig. 6 is the dating mechanism. It comprises six mai'iually set number switches N8 having contacts connected in multiple to the magnets Am of the numeral characters, trunks as leading therefrom and a switch ES controlling the energization of the trunks.

The mechanism I'm is the initialling mechanism. It comprises three 0 more manually set initial switches Is having contacts multiply connected to the actuating magnets Am of the letter characters, and like the mechanism DA, trunks leading to and energized by an energizing switch ES.

' The various details of the machine and its circuits will be described in connection with the operation.

Sound signals are projected into the tramlnittcr T Thru the action of transmitter circuit 11. on repeater transmitter T (or upon any known. form of repeater device) the amplitude, intensity and volume of the waves is increased. Acting on transformer F thru primary winding 390, the waves may be still further increased in size. T he waves of each letter energizes one or more predetermined tuned circuits so, and thru associated coherers or detectors 00 close the circuits of associated direct current relays RE. Each relay (or combination of relays as will appear hereinafter) controls by its contacts circuit as follows, including a magnet rm of register devices D. Bus NB at the relays, conductors 12, contacts 1.3 (or 13 and 13, according to the combination of relays Re), conductor let, magnet rm and bus PB at devices D. Magnet rm being energized pulls up that tier of contacts 6 to 6 whose vertical bar 11 is at that time pushed forward by cams c on shaft as. We will assume this ticr is tier 6 connecting with trunk 15 (see Figs. 7 and 8). The circuit of the associated actuating magnet'Am is therefore closed from trunk-t, thru contacts as of tier e, (whichmay be identified in Fig. conductor 15, winding w of magnet Am, and. to the bus PB, then to bus'NB at switch (ZR, arm 16, contact it; of contacts 16, 17, 18, 19 and 16, 17, 18', 19 (connected respectivet in diametrically opposite pairs with trunks t to 7'7) to trunk t. Vinding w of magnet Am becoming energizcd. draws its core or armature down and operates the type beam l3 to print the letter character dictated. 1

hen tier 0 of (lQVlI'Q D was pulled up it closed by contacts (:(Z one of the four loops 20 to 20 which loops are multiplied respectively to the contacts rd of the various devices D. This energizes one of the four (only one is shown.) actuating magnetssm associated with device DD. and steps the upper ram shaft us, thus rotating the shaft 'us one step (shown as one-quarter revolution, but it may well he is and pusl'iing forward the actuating bar W (Figs. 6 and 7) of the second tier of each device D, into position to be engaged by the a rn'm tures of magnets Win. In the meantime the bar '0 previously actuated is held in actuated position by the engagement of its foot f, with the common holding, bar It Figs. 7 and 8). Therefore when the armature of magnet rm drops back upon degenerization the previously actuated contacts of tier remain in actuated position. This is true of eachtier of contacts, and moreover each ilt) tier closes its associated loop of the group 20 to 20*, each thus stepping the device DD and shaft us one step. Thus is secured a very important result. Characters successively registered on primary register PR are identified each with a different trunk of the group 6 to 6*, since each tier of each.

group (2 to e makes connection with a different one of the trunks. This admits of sound, signaling at any and all rates within wide variations, and in case a group is rapidly made, several code characters may be registered on register PR during the printing of one. By increasing the number of tiers of contacts 0 to e per device D and the number of trunks t to t" the permissible number of advance registrations may be increased.

Each time an actuating magnet Am pulls up over a circuit closed from a device D of the register mechanism, at or near the limit of movement of the type beam B, a limit switch 7).? is actuated to close the loop 21 which closes the circuit of an actuating magnet gm of stepping device RD, thus stepping switch Ds one point, Thus the wiper 16 energizes trunks t to t successively from bus NB, and in the same order as the trunks are associated by cams 0 with tiers e to c in the stepping of device DD. By this means the plurality of registered characters are successively printed, not in the time succession in which they are signaled and registered, but in accordance with the natural operating speed of the typewriting machine itself. This is the ideal method, for irrespective of variations in rapidity of signaling, between one syllable and another, one Word and another, and of different operators, the printing speed is independent, and determined at all times by the natural (which is by far the most rapid and smooth) speed of the machine. Nor do variations in the rate'of action of any type bar cause any disturbance in. the regular operation, each succeedingly operated bar being dependent upon the rate of operation of the precedingly operated bar for the initiation of its operation.

Obviously this method of operation is of value in manually operated typewriters as well as typewriters of this type, for the rates of operation on the individual type bars are independent of the rate and the time order of succession of operation of the various keys. Thus crossing or sticking of type bars, and disorderly operation of any sort is positively prevented. Controlling keys A, B, C, etc, Fig. 4, are provided in shunt to the relays Re (Figs. 4 and 5) for manual operation and control of the circuits of the register magnets rm.

The number of trunks t to t may be increased or decreased at will to suit any existing conditions, the associated apparatus being readily allowed by the skilled operator to suit in point of number of steps, cams, contacts, etc,

The trunks t to t are successively re leased from devices D by the stepping of lower cam shaft Z8 which pushes the feet from bar h. This stepping takes place from and in synchronism with the stepping ofswitch (is, being connected therewith by chain or other gearing connection go. The cams 0 of shaft Z8 are arranged in the same order, but one step behind as respects contacts 16 to 20, etc. of switch ds, so that upon the energization of each trunk by switch 018, the preceding one is released by cams c from the then associated device D. In other words the release of any trunk takes place as the next succeeding trunk is energized. Therefore there is always available one or more tree trunks. As many as three of the four (or {our of five, etc.) may be tied up to tie vices I) at one time but upon momentary slowing up or cessation of dictation the printing catches up and they are successively freed, whereupon they are all available. The adaptability of this method as between operator and machine is full and complete. The personal equation of the dictator alters in no way the orderly operation of the machine.

The operation of all other elemental letter controlling and actuating circuits from the vocal analyzer of Fig. 4: is substantially the same for each letter of the alphabet and hence need not be individually traced herein, There is one exception to be found in the circuits of those characters identified by the energization of a plural number of resonant circuits so. Suppose one signal sound characterized by frequency or Wave form a, another by d, and a third by both it and d. If simple circuits as that just traced from relays Re be used then the signaling of the third signal will pull up register devices D of both the first two. But combination circuits are used as shown for the sake of illustrating in connection with the circuits controlled by the .A and D keys (Fig. 4.). The A circuit 14 governed by normally opened contacts-13 of the A relay Re extends thru normally closed contacts 18, and vice versa, whereby it'either the A relay or the D relay Re pulls up singly, the particular individual circuit A or D is closed to conductor 14, but if both the A and D relays Re pull up in response to making of a third signal, both the A and D circuits are opened at contacts 13 and instead a third circuit 14 of the C key is closed thru normally open contacts 13 on relays of the A and D circuits in series. Thus are combinations and interlocks made to efi'ectregistration or differentiation oi": the complex sounds from each other. The skilled engineer may work out as many of these combination and interlocks as desirable, using any of the combinational and interlocking circuit arrangements known to the art, whereby each signal sound is positively identified with the cir cuit ll of a single code character A, B, C, etc. including a. single register magnet rm.

Cop ital letters.

Any signal or group of signals may be code printed in capital letters by simply pressing the CAPS'control key of Fig. 3. The pressure of this key closes the circuit of caps magnet Cs, Fig. 1, as follows; Bus NB, caps key, conductor 22 device D, 22 (Fig. 6, Fig. 1) magnet Cs and to bus PB. This shifts carriage C, and as long as the CAPS key is held depressed, all sound sig-- nals made are coded in capital letters. If, however, the CAPS key is only momentarily pressed the CAPS magnet Cs locks itself up thrn normally closed contacts 23 and 24 of relay 25 by conductors 26 and 27, from bus NB. Relay 25 is in one arm of loop 21 which is closed each time a type bar B actuated. Hence upon printing of the first letter afterthe caps key is released, the locking circuit of C8 is broken at 23, 24, and the carriage C returns to normal position. Thus the first letter only of each code sentence is capitalized. It is necessary only to use this key at the beginning of signaling, as a rule, as will be seen hereafter.

The time of closure of the loop 21 and consequent energization of relay 25 may be varied at will through adjustment of cores C or their connected parts, which strike contacts be, so as to bear any desired relation to the stroke of the type bars. .The magnet C5 is shown as operating thru lever 132 and abutment 183 directly upon one end of the carriage C, but it will be understood that this showing is diagrammatic, and that the magnet Cs (and the magnet Fs) operate upon any of the standard carriage shifting levers or other parts now used for that pur pose.

Spacing.

are two ways disclosed of accomplishing this,

differentiation. The first, embodied in Fig. 4, depends upon the presence or absence of the fundamental note in any signal. A special winding 28 is placed on transformer F, and operatively connected by special timed circuit 29 and coherer 00, with the special relay 80 of the group Re. The cir cuit 29 is tuned to respond to the fundamental only. Consequently relay 30 is energized only when the fundamental tone is being sounded. Now by making sound signals carefully in syllables, it will be observed that the cessation of fundamental tone in each case marks the division of the group signal into syllables, and furthermore marks the distinction between group signals. The fundamental ceases for a longer period between group signals than between syllables thereof, and we can and do at will vary the difference in length between these periods, generally to increase the length of the period between groups. This latter results in succinctness.

Now the time of degenerization of the relay 30 measures the length of these periods.

Relay 30 controls a relay 31 of the spacing mechanism s-m by a circuit from PB, con ductor 32, relay 31, and to bus N B. Relay 31 in turn controls by circuit NB, armature 34;, front contact 35, conductor 36, a relay 37, of what is commonly known to the art as the slow relay type. Thisrelay is provided usually with a copper sheath for its case, whereby the time of its release or falling back is increased. As is well knownin the art this type of relay may be constructed and adjusted to fall back more or less rapidly. With respect to the time of fall.- ing back of this relay the time of cessation of the fundamental as measured by relay 30 iscompared. Relay 31 also when it pulls up energizes locking relay over circuit NB, armature 41, front contact 42, conductor 43, relay 40 and to bus PB. Belay 40 locks up thru conductor 44, front contact 45, conductor -16, (Fig. 2) normally closed contacts 47, .on dash register device I) of register PR conductor 48 (Fig. 3), normally closed contacts 49 on space register device I), conductor 52 to negative bus NB. .Contacts 47, 49 and 51 are opened whenever devices D are energized, being of the character of con tacts 4.7 shown in Figs. 6 and 7 Thus relay 40 (Fig. 4:) when locked up is unlocked upon the registration of any one of dash, traverse or space movements.

When relay 40 is locked up and relay 31 falls back a second locking relay 53 is pulled up from NB, armature 4-1., back contact 54,

conductor 55, front contact 56 of relay 40,

conductor 57, relay53, conductor 58 (Fig. 2) (Fig. 1), left limit switch 19m" when the same is closed and to battery PB. Thisrelay 53, therefore, is pulled up when. relay 31 falls back when the left limit switch 6m of the carriage C is closed, and this switch is arranged to be closed whenever the writing reaches the marginal limit at the end of each line and thru-out the right marginal space usually guardedby a bell for syllabizing.

ion

lit)

Relay 53 looks up by conductor 59 to conductor 46 and over the same locking circuit as traced for relay 40.

Now relay 30 and hence relay 31, falls back each time the fundamental ceases, both between group signals and between syllables thereof. If between syllables the interval of deenergization is too short to permit the slow acting relay 37 to release, but each time relay 31 falls back it partially closes the circuit of relay 53 at its back contact 54, thus tact 60, conductor 61 (Fig. 2), bell relay 62,

and bus PB, and the second from bus NB, thru front contact 3% of relay 31, conductor 36, front contact 64 of relay 53, conductor 65 (Fig. 2), magnet rm of dash register D, to PB, thus registering a dash for printing after the latest syllable signaled. Note that this registration takes place only when relay 31 pulls up when relay 53 has locked up on the marginal-limit switch Zm, but it does not always take place when these conditions are present.

If before relay 31 has pulled up, there has been time interval (during the absence of the fundamental tone) sufficient for slow relay 37 to drop back, this relay closes a circuit by its back contact 66, conductor 67, front contact 68 of the first lockin relay 40, conductor 69 (Fig. 2) (Fig. 3 back contact 70 of relay 69, conductor 71, conductor 7 and magnetrmi of the space'register device spa, and to bus PB. Thus if there has been time for slow relay 37 to fall back a space is registered. The energization of the magnet rm of the space register opens contacts 4C9 in the locking circuit of relays 4.0 and 53, and they fall back, whereby when relay 31 again pulls up, the syllable register circuit previously traced is open at contact 6 1 of relay 53 and the dash register is not energized.

Relay 37, as aforesaid, is a means of measuring the time interval of cessation of sound signaling or of the fundamental pitch ofthe sound as indicated by the time of de-energization of relay 31. Locking relay 40 functions principally as a means to enable the relay 31 to test for the marginal condition established by switch Zm! on its back stroke only. In other words it functions as would switching contact made by relay 31 in one direction only. Many forms ofthis are known and may be used. Relay 53 energized on the back stroke of relay 31 is an indicator of the existence of the test condition sought by relay 31.

To recapitulate, if when the test condition is indicated by relay 53, the interval of time permits relay 37 to fall back, the circuit 69 of the space register is closed and relay 53 de energized, but if before this, the relay 31 again pulls up, the circuit 65 of the dash register is closed thru contacts of relay 53 and the relay 53 thereafter deenergized by the opening of contacts 47 in the locking circuit. In sound signals one has only to make the time intervals between signal syllables less than that taken by slow relay 3'? to'fall back, and that between signal groups slightly greater, and spacing and syllabizing will take place automatically.

Now resuming at the point where the space register becomes energized, (Fig. 3) it will be noted that relay 69 is deenergized only when the marginal test condition of switch Zm is absent. Thus the space register is actuated only in the absenceof the mar inal test condition. When switch Zm is closed 69 is energized over conductor 58 and by conductors 73 (Figs. 2 and 3) to NB. This shifts armature 7 1 from back contact 70 to front contact 75 from which extends conductor .7 6 to the traverse register device D. Hence when relay 37 fallsback. with the printing on the margin, traverse is immediately registered instead of a space. This causes operation of-the traverse motor TM Without delay as will be later described to shift the carriage (l to the beginning of the next line.

When relay 37 does not fall back, relay 31 on pulling up on the marginal condition as aforesaid registers a dash. As in the case of traverse :this registration is printed in orderimmediately following the last letter of the preceding syllable. In registration when the marginal condition is present (not at other times) the dash register closes by front contacts 77 circuit from PB thru switch Zm, conductor 58, conductors 78 and 79 (Fig. 3) relay 80 and conductor 81 to NE. Relay 80 locks itself to battery PB by conductor 82 thru contacts :83 on traverse register device D, and partially closes by contacts 84: the circuit of the traverse register D thru conductor 85 from conductor 76, conductor '86 (Fig. 2), and back contact of dash register D to battery NB by conductor 87. Thus when a dash marks a syllable on the margin, traverse is registered upon the falling back of the dash register, and the carriage G is traversed immediately upon the printing of the dash, as it should be. to the beginning of the next line.

Now the dash is a mark of punctuation, and as such is representative of its class. Although limited space prohibits the showing, it is intended that the registry of any mark of punctuation marking the termination of a syllable, word, or numeral, and the like, shall cause the succeeding registry of the transverse of the carriage C to the begin ning of a new line. To this end the register circuits and devices of the said other punctuation marks will be associated whenever found desirable, with the circuits of the traverse register in the manner described in connection with the dash register.

There are some cases in which this association will be unnecessary on account of the occurrence of a space interval immediately following the sound signaling of the mark (for they are signaled as well as code letter characters), the timing relay 3'? then registering traverse instead of space as previously set forth.

Obviously in the absence of the marginal test condition and the printing in the body of the lines, while the relay 31 continuously tests for the marginal. condition, no syllables are marked as a result of such test, for relay 53 is deenergized until the marginal condition is found. On the other hand whenever timing relay 37 measures a space interval it closes by conductor 69 independently of relay 63, the circuit of the space register D thru the back contact of the now deenergized relay 69" as traced above.

It has been said the bell relay 62 (Fig. 2) furnishes a guide to the dictator as to marginal shifting. This relay upon being energized by relay 53, closes one circuit, opens another, and locks itself up. The first circuit is that of the bell magnet 88 extending from PB thru front contact 89 by conductor 90 to the magnet and thence by conductor 91 to NE. The circuit opened is the bus PB of the code letter registers D, and the opening is at back contact 92. The look ing circuit is by front contact 93 to conductor 94; (Fig. 1) to normally closed contacts 95on the right hand limit switch Zm, and to NB (disregard for the moment loop 168). Thus relay 62 remains locked up until the carriage C is shifted to the beginning of the new line whereupon it is unlocked. It should be mentioned by the way that the line feed is accomplished by the traverse action as in the standard Oliver machine, or else may be accomplished thru the actuation of the line feed mechanism Lf shown by closing its circuit by special contacts controlled from the traverse register, the circuit 144 of the traverse motor or switch Zm. It may also be mentioned that the points of operation of the switches Zm and Zm may be adjusted at will thru adjustment suitably provided for an of the associated parts as may readily be c one by the skilled engineer in accordance with the already known marginal adjustments of standard typewriting machines.

Hearing the bell 9G rung by magnet 88 (Fig. 2), the operator signals the next syllable of the signal group as if nothing had happened and then stops. The code letthe circuit of another bell 99 of the same or different tone from the bell 96, whereby the operator is advised to proceed signaling,

which he does by beginning at the point where the first bell 96 sounded. The bells follow each other of course in quick succes sion.

Pa n-cauction.

Punctuation marks are signaled and reg-- istered and printed, as are the code letters. This is accomplished by series circuits thru contacts of a plurality of devices D, those entering into the combination in any case being a portion or all of those code letter registers spelling the name of the punctuation mark. Thus for a semi-colon, the registers of letters SEM, etc. would figure in total or in part.

Referring to Figs. 9., 7 and 8, it will be seen that a number of registers D of the primary mechanism PR contain normally open sets of contacts 100 electrically insulated from each other. These may be mounted like contacts 17. Series conductors 1.01 are each completed by the closure of a plurality of sets of contacts 100. Conductors 101 extend from devices D not to windings to, but to windings 10 of actuating magnets Am (Fig. 1), windings to" being connected with a special bus PB separate from that PB as sociated with windings in w. The bus P13 is normally open at contacts 102 controlled by figures magnet Fa while the bus PE is normally closed at contacts 103 controlled by the same magnet. Thus normally when registers'D are actuated by code letter group signaling windings w are energized one from each individual register as aforesaid, over circuits 15, the closure of any one of the series circuits 101, being without effect owing to the break in bus PB at .102. Then numerals or punctuation marks are to be printed, however, the FIGS. Key (Fig. 8) is pressed down, whereupon Figs. magnet. Fe becomes energized over circuit presently to be traced, closing 102 and simultaneously opening 103. WVindings w and circuits 15 are now disabled and windings w and circuits 101 enabled.

Now the magnets am of the trunk distributer DD are energized normally over circuits 20, to 20 under control of the in dividual registers D, are shifted by magnets F3 from circuits 20 to 20 to circuit 104:, under control by switch 105 of the control switch RD (Fig. 1). Switch 105 comprises a wiper 106 stepped over contacts 107 connected commonly with circuit 104 which circuit puts battery PB on magnets cm of distributing device DD (Fig. 2). The magnets cm are thus energized singly as the device RD is stepped by closure of circuit 21 (Fig. 1). The devices D are thus shifted from one trunk to another only upon the energization of the printing magnets e0 Thus the several letter registers D (as for instance and I governing the circuit of semicolon printing magnet w all pull up on the same one of the trunks t to If, which is as it should be for proper. control thru master switch RD.

It is particularly to be noted that figure characters and not capital letters are code printed in this manner and further that. any

desired figure character whatsoever may be code signaled to the machine and will be code printed properly by it, the essential requisite being that each register combination shall be different from each other, and that each of the series circuits 101 shall be maintained electrically separated frou'i each other.

To this end it is best that no single pair of contacts be: used in more than one circuit 101, duplicate pairs 100 being pro vided on each device D (see Fig. 7) when needed and all actuated simultaneously in the same. manner.

WVhen the FIGS. key (Fig. 3) is pressed to print the dictated figures, the circuit of the Figs. shift magnet F8 is closed as follows; FIGS key (Fig. 3 from bus NB of the keys, conductor 129, Fig. register device and battery PB. The Figs. register pulling up closes directly the circuit of figures shift magnet F8 from trunk t (or t to if) corresponding contact 0a of tier 6 (see also Figs. 6 and 7), conductor 130 (all second contacts can of tiers e are connected in multiple to conductor 130), as to conductors 15 of the character actuating magnets), conductor 130, Figs. 6 and 1, magnet Fe and battery bus PB, thence to bus N B at distributing switch 035, Fig. 1 wiper 16, contact 16 and trunk t (or t to 25") back to contact cc of the FIGS. register of Fig. 3. When the FIGS. key is released the platen is at once returned to normalposition, and

the restoration of all circuits to normal effected.

Automatic caps, shift from period.

Vhenever a period is printed the registration of a space and then of a capital for the beginning of the next sentence automatically follows. Upon the energization of circuit 101 of the period printing magnet 108 (Fig. 1), a relay 109 in series with printing magnet 108 is pulled up. This relay closes two circuits from bus NB, the one 110 from contact 111 and the other 112 from contact 113. The first 110, extends thru Fig. 6 into Fig. 3, and thence thru normally closed contacts 11s on a relay 17 0 (presen ly to be described) to relay 116, and to PB.

The second circuit 112 from relay 10.9 BX- tends likewise thru Figs. 6 to Fig. 3, and thence thru a relay 117 to PB. Relay 116 of the pair 116, 117, being energized, closes a locking circuit 118 for itself thru front contact 119 and back contacts 120011 the space register SPC. Relay 116 also closes the energizing circuit of the space register by its front contact 121 and conductor 12-2 connecting with conductor172 previously described. Thus a space is automatically registered and properly printed after each period. Prompt-1y upon registration of the space the locking circuit 118 is broken and relay 116 returns to normal.

But relay 117 having become energized over circuit 112, closesby one of its, fron contacts 123 a locking circuit 124 for itself extending thru. normally closed contacts on the CAPS register, and thereby not opened until the caps register pulls up. By its other front contact it partially closes circuit 126 tacts 127. Thereupon relay 125 pulls up,

locks itself by 128 over circuit 124 previously traced, and closes circuit 22 of the register upon the energizat-ion of which both relays 117 and 125 are unlocked and fall back. All this takes place in a moment of time, but nevertheless in the orderly sequence set forth. Thus space following a period is registered on one trunk t to t and capitals on the nextsucceeding, just as in the case of letters and figures.

It is to be understood that although not shown in every case for the sake of clearness, every actuating magnet energized from the primary register PR containsa pair of contacts in multiple with those 68 on loop 21 (F ig. 1), whereby the distributor switch RD is actuated one step for each energization of any such magnet.

The Caps, register CAPS closes upon the then waiting trunk t to 23* a circuit thru con. ductor 22 (Figs. 3 and 6 then Fig. 1) [0 caps shift magnets Cs. Upon the actuation of the spacing magnet Sal (Fig. 1) and which by the wayv is energized over a circuit 131 from the space register .SiC, Fig. 3, Fig. 6 and Fig. 1, following the printing of the period, the ensuing step of the device RD energizes caps magnet Cs over the associated trunk t to i Cs shifts the carriage C (the basket of type bars, or the equivalent) thru connection 132 with abutment 133, preferably separate from connection 131, and abutment 135 actuated by F8. Unlike F8 however Cs does not break the normal connections of PB, for circuits 101 are not to sa a sro Jun

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