US1707522A - Current-transmission apparatus for printing-telegraph and other systems - Google Patents

Description

April 1929. a. s. HILTZ ET AL 1,707,522

CURRENT TRANSMISSION APPARATUS FOR PRINTING TELEGRAPH AND OTHER SYSTEMS Original Filed May 22, 1926 3 Sheets-Sheet l N I sanvgmtoz 32W; auMZQZ' N I W1 Alpnl 2, 1929. s. s HILTZ ET AL 1,707,522

CURRENT TRANSMISSION APPARATUS FOR PRINTING TELEGRAPH AND OTHER SYSTEMS Ongmal Flled May 22, 1926 3 Sheets-Sheet 2 hwgutoz Q. M a. p Wow April 2, 1929. G s. HILTZ ET AL 1,707,522

CURRENT TRANSMISSION APPARATUS FOR PRINTING TELEGRAPH AND OTHER SYSTEMS Original Filed May 22, 1926 3 Sheets-Sheet 3 Patented Apr. 2,1929. 7

UNITED A E-1S ,rnr o-EFLCE;

. GEORGE s. nrri'rzgor imooxnjr n, NEW'fYORKLAND;WILLIAMT PURCELL, or HOBOKEN,

eooTATIoN ,"rnnnemrn :ooMnANY, or New YORKQN:Y.,ACORPORATION"-OIESNEWJYORK. V 1 v r CURRENT-TRANSMISSION LAYBARATUS 1310B,-PRINTING-TELEGEAPH;AND OTHER 1" Original application filed Tiaiay 'zai sze, serial-no; 110,850. Divided and-the ap licationfilednsptemb r 27,1927 .Sefial K052221345. i

, of contacts.

as heretofore;

' or closeup by a single operation,

The present application is a division of our 'co-pending application, Serial'i'No, 110,-

850,.file'dMay. 22,1926 "The present a plication relates particularlyto cauk eybo'ard 1 which is -'adaptedjfor use in a printing telegraph system.

v More particularly the present invention" .is directed toga ckeyboardnofla noveltype,

which is particularly f adaptable for use in automatic" sending; ap-c cparatusisueh as a perforated tape controlled I transmitter. 'VVith certain forms". or; auto-.

conjunction :with 1 an matio sending devices; sunflower I niecha- .IllSlIlS are employed :in

' controllingthe transmitter action by selectlive spots or contacts on the suiifiower, i provision mate :mad'e. ,for opening and] throw switch which when thrown to the left c .(to' theposition shown) connects. the auto-' I wmatic sending, mechanism to control I the ing closing at leastqt'wo separatecircuits to 'he sunflower foreaeh characterwhich istolhej sent.

contemplated the selection of single icommulater or sunflower "spots ,and accordingly, each key. heretofore controlledta single pair ,vention a novel provided contact structure which is adapted; to a open two circuits. tojtle sunflower instead of one Further obiects o the presen reside 1n-a sunp cation .01.

system; 1 7

fFig'. 2is a planjviewot the keyboardby which manual transmission may be elfected.

Certain of-the parts are br 1showtheeunderly ng'construe is diagrammatically shown in Fig."- 1. need not beherei'n described'in detail as this "system forms the subject matter of ourfco p nding application, Serial No. 110,850, filed the transmitters {and these. sunflower devices are provided vwith outerlcontacts, and, inner common 'contacts. p Due to the pecuiian controlywhioh: theper-f forated type {automatic 7 senderflutilizes for, f

' magnet 105 :ply; Kmains which According to; the present:v 1n- 7 form of control has {been wherein each key vcontrols a dual outer-contacts"markedxletters periodyA at least invention vkeyboard structure to! the" generalendvthat' ilnanufa'c-c turingg cost-s maybe reduced; and to theeigid, 'that the keyboard vwill operate in a more re a nd Vand soon. Wires such as lG'ZY-and "The general system with which the 'novel' keyboard is particularly adapted to operate It 'May: 22',1 926,; It -is sufiicientto state 44 45-37 genera1ly designate the Contact structure ofthe perforated tape sender which con-1" trol the sunflower which in turn controls the agnetic: brake or clutch magnet 109,' by

means of ap'clutch relay 110'. @The poie changers"$)2 S)3103- 9 ()v 'and 94 send iin ulsesto-thejrelays 9596" and these in turn control the ldi-stant ti'cker or receiver- 102 having escapementimagnetsl 1' and a press- Lines 100 and 101 are the supconnect .with a suitable source of current. 1168' represents double transmitter. land when thrown to the: right cuts outthe automatic sender and cuts 'in'the keyboardwhichitorms the-subject matteri of' ,7 Y I known manne YThe sunflower comprises B,- C, D, etc 1 which are arranged in sets, each set" compris ng seven contacts; The

, sets are arranged insuceession and the Vari- .ous respective contacts of one set are con-. nected in; parallel with the; corresponding contactsin the other sets.- Thusthe contact j designated A is eleetrica'lly connected to I to J a and U; Contact B s connected to :K, O

, I so 115-116 supportedon insulat ng 7 member uponand operatedbya shaft-1 in well", 1

167. are used fofgformingsMh parallel {connections Each respective inner Contact through thewiper, is adapted to be connected withuany of the; outer ticontacts ofits particular Jcorrelated setiof router; contacts: 'llhus contact Vithin-theouter oontaots A,- etc'. I (are inner contacts marked 1, 2 3 and A. f

Goff

is arranged for coo )eration with outer contacts marked (letters period) to G- inclusive, contact 2 for H to F inclusive, contact 3 for (letters period) to S inclusive and contact 4 for T to Z inclusive.

Connected to the outer contacts are wires 167 which lead to the seven left hand contacts 37 of the perforated control sender,

this section generally designated 37-tal.

Connected to the various and successive inner contacts 1, 2, 3 and dare the wires 2*, which through switch 168 connect to the four right hand cont-acts 37 of the section of the sender being generally designated 37-4t5.

The keyboard which will now be described comprises an insulating base plate 200 (Fig. 3) supporting side walls 201 and provided with studs 202 which support an insulating cover plate 208. Supported below the cover plate and spaced therefrom by studs 204 is an annular member 205. The plunger keys 160, which are disposed in an annular row and which are 28 in "number, slidably pass through the cover plate 2041 and through the annular member 205 and at their lower ends rest on insulating bars 161 which individually span the ends of'inner' and outer annular rows of insulated spring contacts 162 and 163.1 These contacts 162 and 163 extend radially outwardly and in: wardly from their respective buses. Preferably the insulating bars 161 are connected and securedto the ends of the contacts 162 and 163 in the manner shown in Fig. 3.

connected to current supply main 100, (see Fig. 1) by wire 166, resistance 166" and fuse 166. The outer springs 163 are connected to the outer annular bus'167 which bus in turn is connected to the other side of the source of current or to main 101 by a circuit traced as follows. Through wire 110,

clutch'relay magnet 110. wire 101 and back to main 101. The buses 167and 166 not only form a source of supply for the respective contacts 162 and 166 but form a support for these spring contacts themselves.

'T he contacts are preferably screw fastened to the respective annular buses. Buses 166 and 16? are preterably supported from the base plate 200 by means of the studs 206- The' inner fixed contacts 16 1 are connected in four groups otseven each, each respective group corresponding to the respective inner contacts 1, 2, 3 and 1 of the sunflower and the groups are connected individually through wires 168 to the four right hand upper terminals 168' of the double throw switch 168. The outer contacts 165 are connected in four groups of seven each in exactly the same manner as outer contacts on the sunflower. For connecting the various contacts 165 of one set with those of the other sets, connecting wires 167 are provided. Suitable wires 167 also connect these outer contacts 165 with the'outer contacts of the sunflower and the wiring 167 also connects to the corresponding left hand seven contacts 37 of. the mercury contact mechanism which is controlled bythe perforated tape. The other contacts 37 (to the right in Fig. 1) of the perforated record contact mechanism which are disposed to cooperate with the mercury 45 are connected to the four upper left hand terminals of switch 168, while the four upper central ter- 'minals 168 of the switch168 are connected with the inner group of sunflower contacts 1, 2, 3. and 4 by ineansof the wires2 pie viously re'ferredto. It will therefore, be seen that when the switch 168. is in the left hand position shown in Fig. 1, the keyboard is cut out of the system, but when the switch is in the right hand position, the mercury contact mechanism which is controlled by the perforated tape is cut out an'dgthe hey board is cut in. Under suchconditions with the perttorated record contactmechani'sin cut out, the outer bus'167 then takes the place of the mercury 44, theinner bus 166 takes the place of mercury 45, the four groups of" inner contacts 16 1, take the place of the fourright hand mercury or tape contacts '37 and the four groups of outer contacts 165 (each comprising seven contacts) take 1 the place of the seven left hand contactsSZ.

The keys 160 serving to close individually the gaps normally existing between 163 and 165 and "between 162 and 1641 take the place of the perforated tape.

"Vhen the switch 168 thrown to the right, the unison contacts 15a-155which are connected between the main and the lowermost center contacts or the switch are thrown out and at the same time, the circuit of the tape feed magnet67 is broken the fifth (from the top) of the left hand switch terminals. Similarly, the lowermost of the right handswi'tchterminals and the sixth of the center terminals (counting from the top) place a shunt around the repeat magnet 131. 1

It will now be assumed that the switch 168 is in its ri htward osition to )lace the control of the transmitter under the keyboard. Assume now that the wiper 115116 of the sunflower is on sunflower contacts A and the F key is depressed. This closes the through Wires 167 167", 167,

keyboard 'eontacts 162;164 and 163 165:

v outer bus-ring 167" of tlie keyboard thence F contacts 163 -165 and thereby closingthe line again, Which resame -lett'er to be printed again, Evidently across the outer outer-contact F at the sunfloWer,"-Wiper 8'9, inner contactQ, wire '2, terminals 168 and 168 of switch 168, Wire 168?, inner F contacts 1'6216-l at the keyboardto inner bus- 166 and fuse 166 'to main 110i); The circuit of clutch 109 is therefore closedbyl'relay 110 and the Wiper is arrested on contacts F thereby prolonging the impulse then flow inp; over the line and causing the tick'erstoprint. When another key is depressed a 1 i Vantage is taken or-this use to select either similar cycleof operations is carried out Aswill be seen fromrig; 1, oneside' of the sourceof'currentconnects to one annular bus 166 and the other side of'the source connects to bus 167, thedepression of a single key connects by a-s'i'ngle operationone side of the source selectively, to the inner con-- tacts 1, 2, 8 or 4 of the sunflower'and' also rselefcti'vely connects the other sideof the source to, a particular-contactof an outer set of the sunflower which as before stated, is connected in parallel With the corresponding respective contacts of the other outer sets. In this Way, the dual selection is effected at the sunflower. The keybbardcirouit controller therefore provides twodouble circuit 'controllerswith two sietSuof contacts lea let) and lea let; contacts 1 3 and '165arc further subdivided into groups eorre spending to the group's or'sets ofxouter contactsupon,the sunflower and contacts 162 and 164;are alsosubdivided into group'sor' 7 sets which innu'inb'er correspond to theinner 4 contacts upon the sunflower.

To bl'lll'g the tickers and transmitter into unison the operator simply'keqps hishands;

printed.

oil the keyboard;thereby keepingiall'pkey board circuits-open and caus ng the iper to rotate uninterruptedly, until he sees'the type Wheel of, his ownticker "brought to rest by i'ts unisonmechanism. He then depresses the ,letters period key '(the upper period key in Fig. 2, corresponding to the letters period contacts on' the sunflower) whereupon the Wiper s arrested Onthelett'ers period contact the next time it comes to that contact, and the ticke'rs. all print a period, xactly as if he'had depressed the unison key onthe punching mechanism :At the center-of he keyboard, Figs. 2'

and 3, is aaiepeat key 16i8 .,';byJ hicl'1 the normally, closedpcontac'ts 169, 170,. can be separated. These contacts are insseries With the normally closed repeat contacts 133, 137, hence to repeat aletterwithout' causing the sunflower wipervto make afcomplete revoludepresses flows fromfmain 101 thr ugh v the line circuit, which Wire 101, clutch relayllO, Wire 110 ,:"to the.

ring 166 and thence by" Wire, 166, resistance a source of current.

" keyof the letter which he desires torepeat (thereby keeping theWiperstationary) and thefrepeat key 168*.This opens de e'nergizes the press magnet 105 and-therefore causes the tape,

space.- He then releases the repeat key,

energizes the press magnet :and causes the thisfoperatio'n Will'bfirepeated as long as he depresses and releases-the repeat key." Itwillbe observed that the keysflof the transmitter keyboard, Fig. 2, bear letters and numerals,andthat there areftiyo period "keys. As thepra ctice With this particular a period is ,used after every *word system, or numberln M: of a blank .,space, and

row of cliaracters-on'the ticker type Wheel.

because the characters (PF, signifying preferred) next to be transmitted are letters and (at-fth'erticker). to be advanced one letter-.

hence the same row, of characters is used as .was employed "for printing'erie. 7 But When PF hasbeen printed-the nextcharac,-

ters are numerals and hence theot-her row must be used. Accordingly, atter PF. the

figures period is transmitted. This letter, by means suchas described, inHiltz", Patent No. 1,085,125, bringslto theimpression point 'the period which is in the. figures row and .just before'the imprint is made, causes the -figures row tobe selected, so that the fi'g- =ures periodis printedl after PF and the. tickeris left in condition'to print figures. Haulingprinted:

7 l the operator must shift back to the letters row in order to pr nt the :Word steeland he therefore, after o transmits theletters period. Again after steelisprinted hetransmitsthe figures period so that the 127 /27 can be;

We claim: 1 1-; A keyboard ,adapted for use in a printing telegraph'system with agsuntlower type transmitter! comprising a'plurality of, de-'" pressible keys, of a pluralityof electrical v circuit controllers controlled by a'singl'e do pressed key, one circuit controller being adapted to select a par icularcircuit; from s one side of a source of current and'anotlier circuit controller being adaptedicto select another circuit from the othe 2. A keyboard'tor use in controlling-a transmitter, of i printing telegraph ,coin- -pr1s1ng aj group ofclrcu t l controllers ar ranged in setsand coinprisingfkey actuateo contact elementsfand. cooperating Contact elements, means electrically connecting all of certain, saidelcments together, and means side of the electrically connecting groups of the other elements in common circuits to form distinct ach set having its elements electrically connected to each other but being disconnected from the other sets, another group of circuit controllers also arranged in corresponding sets and comprising key actuated contact elements and other cooperating contact elements, means electrically connecting certain. of said elements in a common eircuit, and means electrically connecting the for etl'ecting a dual selecoion in a common. circuit by and upon the operation of asingle key.

transmitter ot a printing telegraph compris- 7 ing in combination, a plurality of depressible keys, a plurality of circuits to be controlled thereby comprising one group of circuits selectively controlled by a depressed key to selectively establish a circuit relation therebetween to a common line, and another plurality of circuits constituting another group which also receive current from a common line, said respective first and second mentioned commonlines receiving current oi" opposite polarity, and means operable upon the depression of the same aforesaid key for selectively connecting one of the aforesaid last mentioned circuits to its common line.

5. A keyboard for use in controlling a printing telegraph transmitter which has in v combination with a group of circuits individually connected to contact elements of a sunflower, and another group of circuits individually connected to other contact elements of the sunflower which are disposed in sets corresponding to the first mentioned contacts and in which corresponding contacts of the respective sets are connected in parallel, a pliuj'a. "i-y of depressible keys, and. means controlled by and upon the depression of a single key for cllecting a selective interconnection ot a source of current with one ot the first mentioned group of circuits and with one of the-second mentioned group of circuits to ultimately select a. circuit and in accordance with the conjoint selectiveiuterconnection ot the source to both groups of circuits. 7

6. A keyboard for use in connection with printing telegraph transmitters, comprising in combination with a plurality of depress 4. A keyboard for use in controlling the ible keys, of a plurality of depressible key actuated contacts, said contacts being in dis tinct sets, and a pair of contacts one ineach set beingactuated upon the depression ota single key, other contacts arranged in sets and. disposed tocoopera-te withf'tl e respective sets of key actuated contacts, means interconnecting each set of key actuatedjcontacts in a distinct common circuit, means electrically interconnecting a number or" theother contacts to form a number of individual groups, each containing alike number of contacts with all of the contacts oiea'ch respective group connected together to a circuit which pertains to that group, and means interconnecting the respective contacts of the other set otsaid other contacts to form a number of parallel sets. 7 V v 7. A keyboard for use in controlling a printing tele 'raph transmitter,comprising a plurality of annularlydisposed depressible keys, a plurality of annular rows of fixed contacts radially extending and annularly disposed pairs ofblade contacts under the keys arrangedto be displaced in unison by the depression of a single key into contact with pairs of individual fixed contacts.

8. A keyboard for use with a printing telegraph transmitter comprising in combination a pair of annular buses,-one receiving current at one polarity from a sourceand the other receiving current at opposite polarity from said source, a plurality of sets of key actuated contacts carried thereby, each set being carried by and electrically con-5 nected to its own-associated.bus, and a plurality of individual contacts arranged in pairs for cooperation with respective pairs of key actuated contacts and plurality of depressible keys for etl'ecting t 1e conjoint oper-; ation of a pair of key actuated contacts, one being in one set and theother in the other set. I

9. A keyboard for use with'a printing telegraph transmitter comprising in'combinaw,

tion a plurality of depressible keys, a plurality of sets of key actuated contacts arranged in pairs, each pair being conjointly operable by the depression of a single key, a plurality of annularbuses one for each: set of key actuated contacts and each constituting a separate common conductor for the contacts oit its respective set, and a plurality I of sets of other contacts disposed lllpttll'fi tor cooperation with the pairs ot key actuated contacts upon their actuation.

10.'Tlie invention sett'orth in claim 9 in which each; set of the contacts which coop" erate with. the key acutatcd contacts are further subdivided, into a phrralityv of groups, and in which' the various contacts of one group of one-set areal! also electrically connected 1nd. common circu t and in which thevarious contacts of another group of the other setare electrically connected in depression of 11; A keyboard for use wi telegraph transmitter, comprising in combination a pair of annularly. and concentrically disposed bases eacliinsulated from the other, blade spring contacts disposed radially outwardly and inwardly from. the

aforesaid bases, an annularly disposed series of depressible keys arranged to de press said spring contacts in pairs by the a single key, and a plurality of annular rows of fixed contacts disposed under the blade. contacts and arranged in pairs to individually Contact with "a respective blade contact upon their actuation.

' i by the depression of a single key forselectively establishing circuit relations from one side of a source of current to a particular by a single key. i U

12. A keyboard adapted for use in con trolling the transmitter of a printing, tele graphconiprising in combination a plurality of depressible keys and cooperating circuit controlling and selecting means controlled thereby, said means comprising a plurality of key actuated contacts constituting a set of contact pairs, one side of said entireset of contact pairs being connected in common to one side of a source of current and the other cooperating contacts of said pairs being individually connected to separate circuit lines which include a number of parallel lines, another plura'lity'of key actuated contacts constituting different other sets of contact pairs having one side of all of the pairs of said sets connected in common to the other side of the aforesaid cominonsource of cur rent and having their other cooperating contacts of the pairs of each of the sets connected together and to lines which are ultito selectively connect other mately completed through the aforesaid linesrelated to the-other set of contacts to thereby provide a selection by the operation of a single key of circuit relations which in number represent the product of the number of key actuated contact pairs in one set times the number of other sets of contact airs of the other set.

13. A keyboard for use in controlling the transmitter of aprinting telegraph comprising in combination a plurality of depressible keys and cooperating circuit controlling and selecting means operated by and upon the operation of a single key, said cireuitcontrolling and selecting means comprising acertain group of circuit controlling and selecting instrumentalities adapted to selectively establish various circuits to one side'of a common source of current by key action and another group ofcircuitcontrolling and selecting means being likewise adapted by the action of the same single key circuitsto the other side of the same common source of th; a printing current whereby the ultimate circuit selection is conjointly controlled by the circuits which. are established from one side of the source as modified by the circuit relations which are established with the other side of the same source.

14. A keyboard iorselectively establishing circuit relations to a sunflower transmitter in a printing telegraph system wherein ll1-" CllVlClLlal complete circuits include parallel c rcuits to correspondingly disposed contacts of certain sets of sunflower contacts and 'whereii other circuits extend to other cooperating sunflower contacts and comprising in combination, a plurality of depressible keys, and means brought into operation circuit of the first of the aforementioned circuits, and means also brought into operation by the depression of the same key for "also selectively establishing selective circuit relations from the other side of the same source to one of the SGCOIlClHlGIltlOIlGd circuits whereby the selection of the ultimate circuit at the sunflower is controlled conjointlyby the dual selection efifected at both sides of the common source of current.

15. A keyboard transmitter for a printing telegraph comprising in combination with a plurality of depressible keys, a plurality of groups of circuit controllers, each group comprising a plurality of sets of'key actuated contact devices, the contact devicesoit .onegroup having the corresponding individual contacts in the respective sets connected in parallel, and the contact devices of the other group having the individual contacts of each set connected in common to I 16. A keyboard device foraprinting telegraph with depressible keys and circuit controlling means controlled thereby, a multiplicity of circuits associated with said cirsaid circuit controlcuit controlling means,

: ling means having provisions brought into operation by the depression of forefit'ecting circuit selections to the a'fore a single key said circuits in a dual manner so that one selection of the circuits. coordinates with 'anotlier'selection of the circuits for the ult- Inate establishment and selection of a single controlling circuit. v I In testimony whereof we hereto afiix our signatures.

' GEORGE S. HILTZ.

'VVILLIAM F. PURCELL.

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