Chicago Tribune from Chicago, Illinois on December 23, 1934 · 50
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Chicago Tribune from Chicago, Illinois · 50

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Chicago, Illinois
Issue Date:
Sunday, December 23, 1934
Page:
50
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MOTOR MOTOR START KEY CLOICH SENDING picr. CYLINDER LIGHT WAVE CARRIAGE I SENDING .1.4. MOTOR CA"IE CONTROL. MARINE PANEL , P.EXELL 1 ECEIVING MACHINE - I CARR' GE , ' .i 114 LIGHT I umboommosio IL. I 1 REC.PICT.CYLINDER I RE. AMPLIFIE CLUTCH CONTROL EQUALIZER AMPLIFIER RECTIFIER SEND TERMINAL AMP ....00 REC MAUL IAP 1. :; v4-it ;v!,,; t .4:n 1.. t,'!.. K.E Ti.lriburate i$ TiVinter:thot 5 y s-t e M r ' By WHITLEY NOBLE Ail. LADDIN Vith US magic lamp o L. and ring and the two fright- 1, ful genii, slaves thereto, in . their best moments couldn't have done it. They lacked imagination and never operated that fast. The flashing of pictorial matter by wire across a continent 3,(100 miles wide in the brief space of one-six. tieth of a second is a miracle of today, Wirephoto, the new system of telephotography by which The Chicago Tribune collects pictures and photographs from far and wine in somewhat the same - manner (though far more marvelously) as it collects news by telegrapb, operates with a speed approximately the same as that of light. Photographs scanned by an uncanny " electric eye " are borne by electrical impulses along wires to other " electric eyes " in far-away cities, picked up at an amazing rate of speed, and reproduced upon pegatives to be made immediately into duplicate photographs, so that readers within the daily circulation range of newspapers participating in the Wirephoto service may see them in just a matter of minutes and hours after they are taken. No longer do obstacles of time and distance compel news photographs to trail hours and days behind the actual news. Side by side with the day's grist of news, important stories of eventful happenings, accounts of vital and startling occurrences, flash on parallel wires the last-minute photographs that illustrate the news. Speeding trains and specially chartered planes, photograph vehicles of yesterday, are snaillike by comparison. 38 Newspapers Linked in 101000-Mile Circuit Wirephoto, materialization of a ten year - old dream and result of three or four years of careful planning, begins operating now, today, tomorrow, not later, acording to schedule, than the new year. The Tribune and 37 other newspapers in 24 cities are joined in the 10,000-mile network of t h e Wirephoto circuit, which I 300- , RECEIVING MOTOR CONTROL PANEL .M1MMONeinnREIMIE. OMM$6 0 COMMON EQU I PMENT mrlparnemotr, rmtscsallinippego.,--.1 lof"reCArl " , .;.- - - 4.t "tvisi,,-!,814at::&.!!!! Nerve center of Wirephoto, the switchboard. The three panels (left to right) are the talking circuit, receiving bay, and sending bay. ' ' : -- -2400' stretches from coast to coast and from as far north as Minneapolis to as far south as Miami, for the purpose of supplying each other with the important news pictures of the day. No small undertaking has been the organizing by the Associated Press of this modern magic service. At t h e beginning its great expense loomed as a possible obstacle to realization. It was necessary to obtain guarantors among the member newspapers of the Associated Press to underwrite the cost of purchase and installation of equipment. The Triband the New York Daily News were quick to act in the matter of underwriting the huge expense involved. Also among original guarantors of the project were newspapers in Baltimore, Washington, Buffalo, Detroit, Cleveland, Philadelphia, St. Louis, Los Angeles, Oklahoma City, Oakland, San Francisco, Kansas City, , .- ,:' .,4 r,11,11 , ..' f :: ,.1 , t ...V.,,.fkii.':;, ',: ,. - , , ,,,,,,,,,,,,vt. ,. ,. . .i - - ! - , . 4114 - Three views of Wirephoto sending machine.' AHere the ,hooded " electric eye," which converts tones of pictures into electrical impulses for transmission by wire, has moved at an inch a minute most of the way across the cylinder upon which prints are mounted for sending. BApproximately the same stage of sending as shown in figure A, but photographed from a different angle.. Machine from above. In the foreground, driving motor and clutch. At the right of motor and clutch are, at bottom; switches for turning on motor and light beam. Above them, in order, a rheostat for controling light intensity, a meter indicating light intensity, a starting button, and an auxiliary button for emergency stops. . ,,,. mmoo to ano,loob mom .E. nom -emovo, own owe mm r000mmEmmommon, Diagrammatical layout of Wirephoto equipment, showing among the various units the sending and receiving machines, switchboard, and power plant. This equipment occupies 240 square feet of floor space. BAND PASS FILTER t20V-2150tr , - POWER SUPPLY EQUIPMENT 1 , 1 L Diagrammatical key to the receiving and sending bays shown in the illustration of the switchboard at the left. Minneapolis, Denver, Da Ils Milwaukee, Omaha, Dayton, Miami, Atlanta, and Syracuse. Two Chicago afternoon newspapers subscribed at a later date, or, in other words, after equipment for Wirephoto had been ordered. The Tribune is the only morning newspaper in Chicago participating in this new telephotograph service. In the office of each newspaper taking the service, except in cities in which the Associated Press main. tains central offices, is located the equipment for sending and receiving photographs and pictures by wire. In those cities in which there are central Associated Press offices the equipment is in the central office. The equipment room in each case occupies 240 square feet of floor space. CHICA GO S INDAY TRMITNE : en.MB ER 23i 1931, RECEIVING EQUIPMENT Pressing of a Button Starts Wirephoto Day The Wirephoto day begins in each of the 24 equipment rooms over the country with the pressing of a button which sets in motion a power plant, a unit of the equipment which includes a sending and a receiving machine and a bay or switchboard for each. The panel contains alsq a talking circuit with loud-- speaker over which any point in the circuit may talk to the others. The .1innii.ml.i.E,. TEST ISC. I ' 1 s ' , I , , 1 I , 1 A portion of picture an inch wide and I I inches deep can be transmitted in one minute. power plant's function is to supply an absolutely constant source of voltage to the sending and receiving machines, as no commercial source of electricity is steady enough for the purpose. The power plants consist of special generators, regulators, and storage batteries, the last named indicated on the key to the sending and receiving bays shown on this page by the abbreviation G.T.Bats. The generators are the source of power; the storage batteries and regulators keep the generators steady. The operator, having started his - A leased wire I 0.000 miles long links The Chicago Tribune with newspapers in 23 other cities in Wirephoto system of the Associated Press1 which taps most important news source centers of the nation. power plant, adjusts the sensitive machinery by meter readings and tunes the light valve mechanism by the receiving machine, making the tension on a little ribbon vibrate at a natural frequency of 1,200 cycles a second. This operation requires less than five minutes. Then the control station in New York opens the talking circuit. All points report that they .are ready, and each lists what pictures it has for sending. What pictures will be transmitted first and the order of sending all pictures of the day are decided by the control station, though from time to time throughout the day changes may be made in the order of sending for the purpose of pushing especially important pictures ahead of others that may have been scheduled earlier. Before a station sending a picture begins the actual sending it transmits for a few seconds Into each receiving station an amount of power corresponding to the lightest and the darkest parts of the picture in question. Each point adjusts Its power to the receiving equipment at the value of those two limits,. knowing that the receiving machine, when adjusted to receive the two extremes of light and darkness in print, will handle normally - all intervening shades. Then comes the signal from the bay of the sending stationthree interruptions of powerand operators at receiving points press a button on the receiving machine. A second or two later a button on the sending machine is pressed, starting at the same instant receiving machines on the circuit. Negative on a Cylinder Receives Incoming Picture , A cylinder on the receiving machine , at every station, eighteen inches long and twelve inches around,' has - been loaded, with a negative upon which can be received a picture of any dimensions up to eleven by ' seventeen inches. T h e negative, fastened to the cylinder, is in a lightproof container. The negative then is exposed to - a light from a lamp focused through an aperture one one-hundredth of an inch wide. befOre which is a ribbon which admits little or much light according to the strength of the current caused by the picture on the sending machine4 , In case the portion of the in, , coming picture is very black . the aperture which admits light to the negative is nearly closed; where very light, the aperture is nearly open. ', At the end of the picture, the receiving machine automatically cuts off. The cylinder is removed from the machine, taken to the darkroom and opened, and the negative removed and developed. If the picture is the maximum size of eleven by seventeen inches its transmission has a taken just seventeen minutes, for the recording light, one one - hundredth of an inch wide at its maximum, puts its imprint upon the negative on the cylinder, which is revolving at the rate of 100 times a minute, at the rate of an inch a minute. In other words, a portion of a picture one inch wide and eleven inches deep can be transmitted in a minute, the transmission itself being carried out, as pointed out before, with the approximate speed of light. More Than 60 Pictures The Average for a Day The operation achieved on the sending machine at the time the receiving machines are getting the pictures is much the same as that described in the preceding paragraphs, though in the reverse. Upon the cylinder of the sending machine is placed not a negative but a positive print of a picture or ' photograph. The cylinder turns at a hundred revolutions a minute, the print being scanned in strips of one one hundredth of an inch by means of a light beam focused first on a light valve aperture similar to the light valve used in sound picture work. The valve chops the beam at a frequency of 2,400 cycles, passing a pulsating bean!' which is turned through ninety, degrees of focus sharply on the surface of the picture. - Since the light reflected trom the picture surface is proportional to the tone density of the surface, the pulsating beam is modulated with the tone values of the picture before reflection to a photocell. The light valve, an aperture one one-hundredth of an inch square, is partly covered by two duralurain ribbons connected to form a loop: A magnetic field' at right angles to the plane of the ribbons and a 2,400 - cycle current through the ribbons furnish shutter action. As the ribbons vibrate on their inward swing the aperture is closed, and on their outward swing the aperture is opened. A. single-tube amplifier furnishes ,the regulation ,necessary just ,before passing the power to the line. The principle of operation at the recelying points is similar to that of the sending light valve except that only one ribbon is Whus electric eyes '! tbe various points in the 10,000-mile circuit transmit or receive average sized picture o ,at a normal rate of sixty-odd or more in a sixteen-hour In tests to ascertain the Lest type of film for reception of plc-, lures by wire, ordinary film was expo5ed in seven stages varying from correct exposure to 70 per tent of correct. Above is the result, showing (left to right) loss of detail at successive stages of underexposure. A special Wirephoto film was evolved which at 70 per cent of correct exposure shows little detrimental effect. r7.4-;17?7 P11T 7-.PAGE 9. trrmw.inewt, , - - (Associated Press photos.) Wirephoto receiving machine shown from three angles. XReception beginning. 'The receiving equipment urv:der the hood in foregriiund, moving to leff across no carria4e'aCan inch a minute, will , expose the negative within the tightproof cylinder: aching the machine is the power plant, which supplies an absolutely constant flow of current for She transmission equipment. YA closeup showing the cylinder in which the negative is ciontained. ZHere the incoming picture has been recorded on the',negative within the , cylinder, and the operator is removing the cyllider. This goes to the darkroom, whsre it is unlatched and the regve is removed and developed. Meanwhile another cylinder containing a mega- , 4 - day five Is put On the machine., , , PhCEIV IN'iGrrMM FUSES, LAMPS, FUSES, LAMPS, RES. 3c RETS. RES. REM AMHECIPANEL CARRIER AMR TEST , MSC PANEL JKS. JKS. TER M. AMP. TERM. AMR CARRIER RE. AMP. MOTOR COMM MOTOR CONTROL MOTOR CONTROL PANEL PANEL - 110110111110 R BAND PASS NITER eAND PASS I E UGHT VALYE EQL0 1,1Z t R G.T. BATS. G.T. BATS. 13ATS. G.T. BATS. . - - i Lt - - ., . , - - , , , f, , , , , I , -'-'-------'----- . , . ,- is;Tr,--; ' , . VII ( --''C 0'71 4.774, - 71 . . , . . 0 Arr., mows , ,. .. .----- - i it-otg e It, (Illek: ,. VI 0 . ' ,. ; ' ,s: , ) ti s i g: C ,g1:, fp 12 a : - of , -- ditl to.l. - blIP aliztliP 2 ,ft... , . - ',', - , - , 1 t " v ' t r" 5'14' n , . te ;alai ksirtiantli i -J12, tiao -. , SENDING MACHINE SENDING EQUIPMENT ., . 0 . ;,,, I 3 2 , . 4 - CLUTCH - , ' , - i - di, 1 Vinntephoto-' ' MOTOR Ignite SENDING PICI: CYLINDER I I $ 1 1 ? --- I I 1 i, 1 mi, y f ". -4'e : "MIRROR 4 . i I tiala rt., M e LIGITI" f. 1 .;..'N.,,.....1 BAND PASS ' SEND ! TERmINAL . SENDING io Al..'"....S.,,, -,..,. , WAVE . A Ls i stirn FILTER EQUALIZER - ..-. ''. and never operated that east - .........A.-4.t.. ... -;...:4. ---- ) -,::::"-H,,,,,,.,-.) NI I 1 '',..-,: ... . ..r4:....... 1,cz ,.,.... ,...z.,.,.. ,. :, . . 1 ' , --- CAIAG - - P.E.CELL L J-.;......,--.-----, -,., 1 ,20ort RE START - '4' '' . ..7-:.-.:-...:'-;., ..),4:l1:-. :,,---,, -:.s..--;.-:,.. ,....-....:-...... .. . -1,- -,i ,---,-; KEY ,,, . - ,,,,.. ,,, . - .0--.. -- - '-- ""- ''' -r I ', ' '-' ' -,-' '''-X1-:-.''?,-..:1:::) - - i .,-.,-- ',4 ,:.kk 0... k-,,,,Alik:Ai t, :: !,:::', .........: 1 , ..A. ';',: , ' , ,r.:: . --,,, By VIHITLY NOBLE , : , , ... ..-7.. ,. , , . :,::, N::;i . ,, , ,. -- . , .......) ::,. ii: -- ;. -, . : ,.:.. : ,-,, ' : ,firlt:,,:,.::,:-:::! ' ....;:',1, ,-.11r . . ' 11::,1.i..:.7.:';4:.. .:.. , . ,ms: LADDIN.NVith Ilia magic Ialllp - :. SENDING 2400' -I - - - -----. --- -- --- .47t-','.'-..4 ,4! 4'1 i .' T- r:,,,,e-::- . 7.7d.' .iöp. :;;i: ':' ..!:.:'-:::i i : ..:.. ,:.:,,;,;..-7,,i4,.A --' I .:,:..; ,, -t, 4 ?'- , :,:1::::,',::', I ' . L' iii. and ring and the two fright ; -: MOTOR Cul genii, slaves thereto, in ', C0I4TRol, MA , E ----- RIN E PANEL. CA"? . . , -' s 4,"tIP ,-- (.' -,...i. , A---x..--...-t--,:.,,,:. '' - ' ' :. IAM1'.;';'''''.....-: ' 'r': II : ' L' IN- ',- '', ' I -, ' '' ! ii '...' ;:--r;1.11s;:'::':.::, ''",,;1, 1 1-.:----- '-......?:-3:- ,-;---,:,-,p1 s,-,4., .- ' ti;.:-0 i- ,-c-:7-R::',.: . t..;-i:-:.,: e ::,,;:,.-. ,..,:,,:::::::.:,...:,.: 1...:,.. .,....:,:. ,.,:::. ,..,. :.,:,..,,,1..,,,.....,,,:,..,::,.....,.t , , . ., , . .,,, .... , .....:. ...,.... :,--1 ---:. f 5 - their best moments couldn't i 4,,,,,ley....... 'I , . I .. .. , t , 1,, ..1. ''''1.'"L ': 1 Lye" done it.' They lacked imagina- ', 3,0047:-..-4--- - .777-- - . , ., :--1' -.::- , .: 1 . : ': -::-, :--. ,'--;:. 'i, I," .. J. ;:Arzzi......:,:x......::::.. I.,..,::.::::,..w. ; ...,;;;;;;;;;s40,H,,,,A..':j..r.i:::1 ...,...1.1s54:240 , ! , ire across a continent 3,Q00 m 4--,f - 11 , , , -A ' i ' ' ' I ....,.... :, -...., , ',.' '''tp,....., , 414- . -,,,,,-.., , '''72:11k4'41a1--s "s--- t , -'1. .1,-'....!ft,..,, i -el ; P .- -- s-;kwÇ CARRIER - .. . ....0e,,, POWER - , - - - - - , , - - --10' ', .. ' .,,-.4 ---, - 4 . The flashing of pictorial matter by g marog '. COMMON . . SUPpLY .,, ..,..,- - 1 , iles . coNTROL. EQUIPMENT . ! EQU I PASENT ' I , - 1. - - ' - 1 , - ncr ,.: ,, ...:. my I COMMON . ..,....:..:::.... .............:: ...; l'..: -- , t'';":''..1 -ere lasnin s ig, e Pict or x t J.a.i 110.1.t. g marog ' , , . . . . . , , - , , . iijiVi3e I -- - - -- ' - I - - - - - , .... . I , :'; ::,-,,,,-1.4tot:,,,,f 4 cl. ..,...-;..:.,,,.....4:71tV ,0.--..., ieth of a second Is a mirace o 00-. -.;;.1 e- ' - . ...--7C ' . 'ire across a continent 3,000 railea . coNTROL EQUIPMENT EQuiPiltENT , I . !. -. ''', ,- '-. t .., OS C. ; i 19 , vide in the brief space of one-six- ,, .., - , , , l . f 5,-4 .- L I , ' .0-, ee 1 - '4,-,,! :,;.. .0., ...: ' At C17:7: 1,,, i :,..,, is:!!:.:..::. ,.'":7 , . F , , I . .... e' .'i,,:.'::e$ .e,e,:e.,:e 1 .e- e,::: k :g::.,:::-?.., 1 0,,, ,$-:0:..:. '''''' ..:,,.1:: ..,,:7 :oday, Wirephoto, the new system ::.......t i.;.::;!;.:'.:?, 1 ve ' '1 t )f . telephotography by which The RECEIVING - -. , :,;(.:.i .. ,..,9b..10 '.::::1::::':'::1: K. . Al.. : . :: . ..,..... e, t,,.:,..:: , 0. ...., k:..::..............., ,ów , MOOR - ' ' ' ' RECEIVING EQUIPMENT -- - - - ' :.:.';',... ''' --,...:,::-,,,:7.-. , .,., -,,,,-., I ,- .,- ;.1'..' ,,, 7::77,71 hicago Tribune collecte pleteres CTONTROL -,. ,-a-, 1'77::-.: ' 1 1 '0 ,wg,... , ,,: ..i.:::..,7,..:.:.:.:771''.,.....,..........::.,.,...,i..:.)4...,..... .':.:........:,.'. , 1-- , ...::::. -7...,, t- .. ,,,,,,,,... ... ,::.77.7-,, ..,11.: ..,,,,,!..1,-- r...''.... -,:r . , ...., ,,....,.. ..,.:., ..: .,:::,:,r.,,. Ifv , , tad photographs from far and wide , PANEL ee- '.e :::::::-", -e-,:e.. ,',''',:,.'::',':! e-,,,: ,-- .: , 4P - - - - , , .-,-... . .. . -eete. :fJ-7-Y 1...:.44:.k......:1. $:. ::;:::::: '.;-'1,' , n somewhat the s a m e - manner ', --e.-----, , , . . : ee-,-,.., o, d , .. . tre,..4e,: ee ..-2 e::.::;:ti.::'-iCe.:'.., ";keee'ie A 'though far more marvelously) as it -- - . . --eon, ommEmaDo-dokoo ....mg -1 ' CLUTCH . TEST Z , - ' ekeeee,: -,..,:....e e.:.,?e,.:,:e. , , I , , : , :' CONTROL .MISC. , - , e e - -- ' ' -, t-e-'4;4''''40.e: eeeWeeee '', e'.. ' T,A'' ' ,K.:.: A ';'4,14,,, ,f...,s;J:,:.-,: :, ,-:-. t; . ,,,,,i., ,ollects news by telegra,., Pb Pperatee , - , , . . . . ,, ... t . ,,E:,,,,,," ..: ''f;.: :,.....:1,.:. ki,''t , ,, - witalvits,G MACHINE . 1 ,, , . :- ,, .,..... .....,, , .., ,t ) :4::.-. 1 ,p, 4 ,....,',: ? ' '..'...:.' ,., :.,s-.04 vith a speed approximately the earee I ' . 1.,:. 0, . 1::,e 0...:.f oof ee.,....... ee:.--....: -e - ... e ., ee ee , .., Ls that of light- - - , ' - , . .. ........: , .. ' ii;Zilr .1) et .. 1.::!. 1 ..e.,.-A.-:.:, ,t, . .1 ..:::-er; ..-...! .:,...t:-, i ' .''. .! kc ty electric eye are borne by elec i ! ' - CARR' GC :.; , - I I - - - , - ' ' t l' i,:j i) 1 ,--;':. .:-.: :I?. Photographs scanned by an uncan- e. - ::.: (,...:.:., - i feLIGHT , , 01 , 1;s:'..,',:elle' ;:). e :":.-' -- eee , .$ - " " - , VALVE I BAND PASS. . Rec . eler . r . , AMPLIFIER ' .tit. 7:.,;;.;e:.....:,..,, i...3.: ,.,,.,.,, ti .. .. .,- rical impulsee along wires to other , LOW PASS 1 LIGPTVALVE - esTER - ; ---. 4 ye ' ' EOUALgER 0,1ZOOm .. RECTIFIER FILTER EIIMINAL . . ' 4,4,,:.:.'',: ;1,-,v,,T ' ., 0 -, : 1 . , - 120072600e ' ' le 1 -i' ' electriq eyes " in far-away cities, ' MP ' 1 'R.ECLEr411114' ' ::.''''''':;:::1:...i'i;,i'li.,::::::?::;:;:,.::).:::....:::::;:;i.'4!;E14.61;.....1.''.::..;is4.1:.;.1'.4'A.:lii.;,.:'.!:;:'.:.1.-.41.. ..:..!.:11t..:;;..::"::.!.'::lr?.....:171::,,...17"1::.:1:::::'..'.:) d,T...:A',,,',,..::::,.,,;E:4'et49:41;.' ''. i' fi'f!:::':.:::.1'.:''....''''..:.... 1 .... ' ' I....:i. 4 ,.1,..:.'' e ;.:4 'V .------ -.... I ..4,.:::-,i,,,-...;,.:Ai ot : a..,..s. lf,,f .:,4'. :',x,"1" .-: i, . ,:. , 1.;::-ft' ' C:::;:4 ,, ,.: ' ..:,::,1 r ,,, -,...,-. ,,: 5 4 ,,,, ,,, I joked up at an amazing rate oe . ''' ' e se 4-' - ' e ': .1 leeee, e v e- ,1 :,,7-e - , ''e'i.'.41.'" ',13- 4:7.,,4 ,,, If,','-,,:. A. ''' 't" ' 8-...,:::::f: :'-,':::1.1 .i, .t..; ,ft ! ..,,,.0 ':;': .' 1, f-.: - 4 ., ....,... - . ' 4 -,,. t - .. .. , ;peed, and reproduced upon pegae MOTOR REC.PICT CYLINDER - . , . I , , ' . I - - '.- ,, - - : . 1 . ' .. 0....,.e: , eeeeee . , ...,,, ives to be made immediately into CLUTCH' - , I . , , , . , , , - , within , - I t , , luplicate photographs, so that read- , - , .., e-s the daily circulation range ekeee ,.,...e:.,..7.,i,e;.:',-0...:-; , )e newspapers participating in the -,110 , kirephoto service may see them in Diagrammatical layout of Wirephoto equipment, showing among the ;.:!:;:-,,,t:.,...,74,,,; .:,...,::,,,,,.,,,...:. , ,..4 - , : , - '4 , .- '4.',, :,-, --.,-. 1.1s-t a matter of minutes and hours ' various units the sending and receivitig machines, switchboard, and : r ' :'. 4 e, -,- ..,,,.,..t:: .: - .. , ' , , '''v;:.,,,',,,k , tfter they are taken. No longer do power plant.' This equipment occupies 240 square feet 'of floor space. ,,,- 1s, . , .. ..,. ,.. . ..." A :,-..,...e .,. ..., -. , - ee,e..3; e -;,. , i , t .,-......::l::::.:,:., i '7 - :::. e . :;.e Ne'e:.'4-- .: ee ,- , rr7-77.77;7,...,.,':-. :.77179rT' rf r'r,"171717.7 lc-7 tri--77- 171"176 1."1177 i 1.1 ' ReL.C.Mitelti OM . ' : e , - , : , :14,-,?;:...... ... i.,. . . , , t i .-:,:.:.:..:,:,.:1....-:,;.:)' ,4, , ' 114: i -4;.- t i , ,-, , .., ,,-, -.,, , . - - . ,..,i.,..,,,,,,, -, - , ..w.,!...-,-:,-V1 i 1 V ., ...., -! ,-,..; ,, ,,E, fri,,,.,.-.410--,: : - : .,-;'-'",";,,ii'V ',----,,,'1217 - 4 nxi,,3!)-1-r. ;', iilli :.;',.:4 .., s--.-'!': , rew .,.: :.. , ,:: .:: r:. '' ' , - 7" .,;. ,k ''--' ' ',L--:',---1.: 1 -.: .' ... ent, - '.. ... ...:,.: , 1 t. ..-74 ,,1.'., 1 al -t'' 4: 1; ' ' -.- . .)- ' '.... '..-...7.7 ' -- ' .. ' .:.i .... :. li 4 ee , :1!!!''''''' ' "''''''''-'--:-:4-I'''";::;:::tfT.,',. l , . . . ... .:, : ........ A : ier ...i.''' 1 - '',i : '.: I,', 1 ,: -,4 : - FUSES, LAMPS, FUSES, LAMPS, RES. 3c RETS. RES. A RETS. , AMP- RECEPANEL CARRIER AMP . ' , . ,, ,, ,,:::. ::,.., ,: ,,,, 4,- ..,-,4- ::.:'''t ( LA:.-.'::- ''',..:'':''''-- 1 ::. 3, ,,:: :.;, . .. ' A, -.....4:4 1-- '7!! t 1 or,. ; ; ... ::;:i:'4.;;,i;!:.., t ri , , : . , ,...:::..::...:.,....:,-.1.A...:t ,,,,, ..t.::::::;,::..:.:.::;:.:::,,:,:.;:, ,.,.,,,.. . ,. .. , . ,,. , , , .,. , .t , , .i., -; i -.. ..,,:,..: : :.: .,, :: .1.::1, 4::41.:1 ce ee.4.e.i.e. ..ere.e.,-' 9e,-leee : le-4,,e1 - TEST ..ge , - , . -',,, ----, -,:!:4:1 .:!,:::-...,:si:-:::::::-.,.:::,-T::,..:,....::.,,..::4-, ' ' ,,, 4 ,-,1 , --- , ,- ,--- , .. I.,'I ' , , 1 : , I I: . . I -1.4 , " : ,..,,. ,......,:, ,, ., . - ,,::.--,:.,,,w,,, .. ",,,,,,,, : : ,1 :,.. .:. MISC. PANEL 4,- J K- 5'. 's .... , , , .- --,,,..,..1.,..,,.. ,., ttt- 40- i-, ,..! . ,,1 , .: :. .. ..",...... ,.. , ., ), ',L....7 iioloarmlo il!,-.. ;""-0,.. a11,.. 1,- - - . 11 ,.., -JKS. ;. , ,..,-;;,,,, :,,,i:. ,i - ., . ... '-' : '-' ' ' '-'' -' p -, U.., - 4 - , ;,: , ,,-.. 'pish,!:blioote.,,,..,,, .. 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P E. AMP. ;',e-eze , e::-::.e"::,:.::::e,,e $. . :.-',.--:' .7";. ""-"eree ..-; "e''''..1.,:r1:.;:::;;T:,.,--,: '..--;,.i'il. 1Y 0,;''7'',70-,!.:.2,'rttair; CARRIER g , k 7 ; , f,X ::.:-, -,r-7777'.",..:V7,,-.,,.. .: :4,.,,-;..44,..,,,,-...,Cm.i.,4,i.--,- :.-i'." 4,;-s;,:i.,,,,,,----,.,,-.';,;4r;,,,c, IACRoR coarRot :, . ;-.I.....:. :..:,:::., :,..7.,i t I i , , - - ::,, , Ar-,....- ,, er)op, :...:::::.:::::.::::::::,::ys.:::::,;,::.::,.::i . ,:.:::::::,::.,::,1::,,,:,.4::::::!::,;.,,,,,. . .::: ; :::::!,:,:;i:,:a::,i;:::::::::2:,!:::;;,:-:i. ...,,,.::::,,.,.,:!::,,;..,:i-,,,;::,,:.:,:..,.c ,.,i.o,5-,.;i,,',..7,,e,,,1,4-,,:;4z:4-.:r4,.,;,.:,,-,Hts:::4:-4 , 4 $, --;,;,:fri -,; i,,,,k1 :,-.. , -. " ,...,,,, : ,: : ! :e-Li: 1---,- 0 ,:i" :1 t -ji 1: Ll-i, ; 7:.-:- k.,,li t.,. , . ,, , -, - ., 47..7m.,:f..g,...,.. .4 ' - - f 3 :.' ,. ..4.,,t, -4 '' -' .ts- A. 4, :;elt ..,.. 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' - - 3 ei, 1 ::, ..'-'1T I k-,; r) MOTOR CONTROL MOTOCO , ff R NTROL , -- ..t-:,, il.:fi--:!!-:"..:-,Q .,,,, -, tures ' , . , , , , ., In tests to ascrtin t , , , ea ,the best type of film for reception of plc!. -:, ' l . f , -'....;..."-,: ::"::: -' -' :: 1 :':,:...:::::: ' :" ..:i,.,' 1: -..v.):.,..i . libl,:..:..1 :: : : ..,...:. by wire, ordinary film was ex posed in, seven PANEL - PANEL - ..,,, ii...,,4,..:1,!.:;!1-4,i.4:4,!:: ..t.. :-'-' . 4 :..,.,.......-, '. .-3,.,,,.i yi.....;...: .".. . ..-,,:...:.,:A., ..::.: :Hi,:-,!:. ; :, 1: -.,;,: .i ....1,-,..........0,..4....... . . . : :7 , r 'eNRIMIIIIIIIMgcrge, 4. -tee. ' - ee ele-e..e:..eete,,-;:sittc . :'- - , -1111111111 111 otailley.i'WtaliA- . '-' '''' Im"-.1111114111111111n.. u.s-INALIII41 ''' ' .----.'''' la Allk stag!! varying from correct ploesr tsoent of detail ectacilorartst;cAesbsiovveestisagthees ef underexposure. A sp,ecial Wirepn' oto film was evolved which : - -, . ,-,"!:.-:. -- v.)1 :. :::. ' - ' . :. .:.:. : ' :P :. i '-, --::: .:,.,-::: o"If. 110111131111,t0 I - S '4':r :-':. .'..:44:"-- 1: ,- . . ."..., -. .. ,,i,J.: '::::::": i . 1. ft--:11.1.4--:-:' ::;;::,:.:,:-:-::,:. ,,.:::-.. 1.11 6440 PASS, NITER eANDPAS5 -I E.' LIGHT- VALVE ' ' Ni ''' .-3 -- : r::' t -I.,'" ' ',, ' 5-e'::, . it;;;::::::::,....;:i:::.:.:...:''...:.::::...::.:,-.::..,,..: if::: s:,,..,.,..17..,,,,.:44;:.:!.!1::,..,.4;,.. -.1,,..'t. , . k :.:,-,.. ... ,' .., - ', . , , .. ...-,i- , . r:,-5-, I. t-o-ir,l. I:: . ...................... .....:.,..:-''....:, . : .. . '',::''',..1 1 . .... , ,. . , ... ... .,. , , , . oolatso um, , , ,,,,,..., ,..,p,..ADELH,A at 70 per c, ent of correct, exposu,,re,showli,ttle,.detri,rnental effect. , . . ,, , . (Associated Press photos.) e - , ' - -:' ' ' ... e- iy 1 - - tI'a"--- --N v , - , ".., - c): ' --- 1 GI BATS. : ' GI BATS. . -: - . ::.;: 7.:,::,!::.:,:.7:,,.....:,,..5 o iar,,',.,'4 tr...??..,.,t,,,,,,,,N 1 ,,--.1, eee , fee eree : , : .. . -,e:..-:. ei -:; :::-:. :i,...:.:-...:Le; e,:,', t eve. e-e-e''.',.ie44. e 1 ,',,'' eee. ... 4,;,,,-0 ,' ,.--;.'. ,,-- i. ;:. :.:.-:;: !:.: :-; '.':-,:!;:,, : if :'..07 1. i ell. ,,:1 ,,:',ei 44 1--t i. 4-i I ,, , . : 4 1 ..! : ,..i.::.::,::': :',. ,'-'';':.!::.,:ri i',-;:ylitI, :,;Z-,; Lip ,,:', tr::2,.41, 34., . 1:- ,,: N.:,-) 1 r ,J I. .. , .. . : .. . , . ...., ,. , . , ,. ,,,,-,.......,. . , iie..le .......1..,.., . . .. , , ..e.....,..e ... e,,,...,:.;.:,..:::;,,.-,. ,. .,..,:-.0e,..:,.:-.,,. ei ei. i tatee , lee J.. eekee G.T. BATS. GT. BATS. r.; xii1-eeee,Yee ,:ee,e4eee ,,..-'. gi,11.......!:, ::,,,,, .. , A .3,t .0. -.----:la.,,:::::$'1 .c.-;;;.-: -,...' " ' ' . . -. - ,;;,? ;7;:,.,..-....,::::I .t-77...,.4.''P 1,7 f77... .:',.'i - 441 '..1 .'4.:1-1 fr.-Z. ' : :7, ,2,1, -..i:, ,,,,-,, i.,f,,:,';.7,,,,,-,,,-,, ,: ,,s,:". ,, -, .,,,.,, f- , - ,,,- t -' - , - :'.;-:.... - - .: ,,,,- , .,, 4- i", ' 't4N FRANCISCO . ., ., . DES WOO (II, ' ..1 , TC RH It 8 i,C.46N a 64,10 s or- ::jH'' viAsSA1.141mcalt4,Tgoti ,:',4,--,,!,..1-:.:::;:..:.. '-::,-;.-:-.---:---,--:-,;t:-.-:--;-'-:; ,..:.-:------: . ...4,-.. :- ,. , ( AL U ',- ' . ,. - -:-.:,.',4 '4.'.:.:.-,..:.::-::,:.;.,..:.-::::;-;.--;:4-..;la.--;:...,..;.::.:-3..-.,.---2::::, -.f:..;....,..,:!,...........- .. s, -' -''''''''-iI'''''7'.'-'1:;,-,:-!:.4:11'-'4,:':.1,010N,:'':Fi'ii.5,1ii.-.:.t?-:-.5i,,:i-:"-:35i,,:::.-N:;:-.:,: . ::z..F.Ii.,::.::.',,::;..Z. , ..,'..:: - CUP , '.1,01AS '. . :. . i !:: .. ..: :' :. - ,; .1. ...1.: ' ::-.1 ; 1 I ',. -..1-1, ' . . I . o;' ''; W,...4. '''.; ..-..1:7:.?.;.:.:;..; ' . '' 1 ' ''' . f. lb, - A I ". ' ' Jt ''', ,6-. ' '''' "'''''''.'" v:"-:-.,t-..:::: i' ,--tn,::.f::.....z:;,:,',.:-.:-,::.:::..:,..-.,:...,:5:,::::.:::::::., 4,- .. : .. - ........... . . ',,:....,.-,", ',4 :.'..;,,::;... 'kg -:.,,X--4,',4.;,';'s .;:::!: ,.'.::--,:rft'-:;:.::a . : . :' ........... :-.:'::::::::',::.::.:. i9e:.7'''',,1,:: i s s- ',. ' ' .7- '.; !. : '':.'.::..':'::... ''.:;:::':::;:.:,:;"..:".. 441r'',,-,-1;:"1"-). le. 1 :..::....-.;e,..e.:::.,:e !i:.-.::'ele..e".!-- Diagrammatical key to the re- ,, AE-LEI . -1 -,OcKILAHOIAA 4 ., 3 , -- " ,-...;- ..,..4..'r.,:::5.4i:'7444.7....:::.:';' .1:','.,:7-.77:::.:..i.,7,:;.7;,::-;:::-;::,;4,-;.?.:-:::,::::!::':.:,,i...i...'..:: .: .:-i::. ,;:... :"!i.. ,.. ... -. 1 .:' -. , i ;';'...:1'.::'. ,.'"'". :::.:.:..'";:.'":..:'.:':.':'.'" .....'::."::::'"-I i''.444;-.4.,.'. ' ,L , rn. '. . ' , .....--::: -- ,. ,,,,,, . ,... .... , ,...:,.?:,:.:;:,,,,,;" os ..:,.:,..i,..::::,....,,,I.:'6:,-, 4. 1',. , - ' .- ....... - ,, ,, , in the illustration of the switch- ceiving and sending bays shown - -, ,,'-, 1,,;'',':---:: ,..,:',.1-'-' .: I.,:, -- , : - ,, board at the left. : 5,:,,:. , . ....,,,,::. A , , . t,.. . in . DALLAS Nerve center of Wirephoto, the switchboard. The three panels (left :, , I ,;.c..:I.T:i -:-,,,:,.,:;...,-; 4:.::'''' '. ,,,,...1 4 I I 1 - c to right) are the talking circuit, receiving bay, and sending bay. . ,:,','...,-',L-'. -:,-..,,,,,,., ,,, .:::,.:Lti, ,.,:.' ..--;,-- , . , , , , -,,,,,,,,!',1" : ,,;!.-3-- ,..-,,,,.i., , Minneapolis, Denver, Dallee, Milwau- , eee eve..., . ,:e.::.::::.,:,:;--, ,-,;.e...:: e..:.e44-. - '',,e'-,-;o4e,. .:,-..':;::.:I.:ie,:.1.6e::::eee..':e::tee..e,e.:::::e':':.;,:e:.::::"':',:;:ee.:',e;-.e::eeeele! , e-,1-7-ee,',.! .: . .. . , . , . . -, , ,, meet -;-'-'''"' ''''::- ee, 'i' e.::1e:ee , eeeeeee- "ee.ge'efeee'ee'ee-eeee,,ee''.eeee;::e:eee leee,e,,,,Te, kee, Omaha, Dayton, Miami, Atlanta, - ---e:., e e-::eeet.r e--: i .. eefeee '''::':::.,.. 'ee:- :.:.:: i-::::'fieee-;::;::e.,-,:e:..--.-:-',e e:l'e.,..- ::e:-,:e,,-,.,e,e-,e,,,,,,,,e-E,-,e-Te,:ee.::esT..,;;,-eee,. , ! ibstacles of time and distance compel stretches from coast to coast and ' e e .1 :"::::':::-:::-?;:-.., o afternoon Two C racuse ca eee- y. hig . ,. -,e; !e. 1.!e::.!:..e,--'"-e '- 1' . .." .;.:.' . :...::. ...: . .:..'.."..K6.41c1. t;k,-:::' , :: .Z..;:;:.:;,',:.'..i:.i:4i.allVI;.':;';i..';:',,';;,::', 4 4 .e:;.:;:ri:::.:4...'0. tLi' '...' .' ' clews photographs to trail hours and from as far north as Minneapolis to and S e-i te q '..eee --el.::elee, "..i ee ' I - - ; - - : ' , - - - -----,c . ::: e ' eeeee leFee,,,:,,s.''..-,:e .e!, ; --- e.e-"e:.,-:" '' ', , lays behind the actual news Side as far south as Miami, for the pur- newspapers subscribed at a late! date, A,,,--. .... .7 :.. ....., . .:::.:...:',,,,..... , .... I t '.c,..,?--,,..,r.0,4,.4-a,,,:ii,7,11, '-,v,-A,-i:.,,,lr-'10,.-",.1,t-4..., 1,,,,,,1.',,.., 'oy side with the day's grist of news, pose of supplying each other with or, in other words, after equipment -'-;;;''!.,,...,;,,J!,..;.1',..;';.1..,e'e,,:,:::::4,ee; .e,,:,40,-7,!-,,,t,e- .. :.,.. .-; rF',4... V:::",.. ...:',?.:,....::S.:q.:.::'7:-11k,-.1g.P , - 1 ..: -....,.,, AN ..;..; 2...:,;.... . '..,a: &,...., i.,,,,,,,i ,.;;,.. , ;''...;;.:Ii.. .:','; 4 :,. Aleased wire 10,000 miles long links The Chicago Tribune with news- - -..-.-",'?,I1,,',,,,,:-',..::,;,i:::,,w,43,,Ti-:,--,gga-z...-...-wz3r.,..1,..z......--s3.--,-....e,r:..:,,,,5':.,..,i,-k.,.. for Wirephoto had, been orde!ed. The . --f?".1.,,,,17..e.eti..;14,:,f::'''-e i,'reA4...,-.41. ::::.e.'e'?7:',' 4.j.e4;-?e,.....,. Important stories of eventful happen- the important news pictures of the ; 'e-eeeee,-e-ee-1,reeeee-egee,::;,,.e,-.,,e'eee:e -,-,-... ttrzne..,,eeee.,-..,::e,-,!..eefleeelte Tribune Is the only morning news- papers in 23 other cities in Wirephoto system of the Associated Press, - ''':',',:i.:'?1,-;.P;-,'.!-,:';..:s.i,-4;:-'",:t,':-...l.-:-.,--..,,,... - ''.'. N ;,.t4.:::;.):,: ',..:':::4',4''''''''''..i.C. rigs, accounts of vital and startling day. 1.;; '- k " :-:.31-..1i. '":','''.1:,-;, ,,,-,',";-:4,,,, :i . ,,, ,,, ::., ,,,,, :.,:.,t.,,.,-.,,,,,.,,,.,.:.. 4,.....,,,...aurt occurrences, flash on parallel wires No small undertaking has been the pape,r in Chicago participating in . :,: b ,,.. :,' .: ,:,.:!Ii .:1:..7..:.!.:: ....e, which taps most important news source centers of the nation ,,,,,.:.. ,,,,., this new telephotograph service. : ",:le ee .. .e. ,,,,..;......... ,e :....:. 111;.. , e , , 0 the last-minute photographs that il- organizing by the Associated Press tustrate the news. Speeding trains of this modern magic service At eeeeeee e e ,..., e",e e' te -'"ee In the office of each newspaper , eeeeeee, eeee ee ,.e,..... e Nee:le-epee power plant adjusts the sensitive the machine 0,,, and specially chartered planes pho- t h e beginning its great expense taking e service , taken to the darkroom - ,,,e,,e, e.,eeeee.,..ee..e.eeeeeeemee..eemee.ree-eoeseeeeeeoeoeeeeeeee,, .....e......,....:,, . - ese -e -.1 , .. A , .1 ,r,e, ,,,, ee, ee-ez., eeeeee'ieeeeeeeeeeeee,-,-:::-.-e,',.:- .:3Art .:;- ... ::; ,.... . : . . . ........ .. .' !"...::....7.":4 '...":'''. :'.-1.7;'''I,';:.: tak the except in cities In 4'..... 'i- !..'7.:i 11 ::..7':.1', -1 r:::',:'::' - i 1 ',..t: .-..". 4i.?...1-7.':? machinery by meter readings and and opened, and the negative re- I et 4,, ,--.'t.,os--,,,w,, - -- 4 1 ea tion ....."...,. "....-..-,..- - - E-- tiA.A.,,.,.., ...rirg:,",:---,...: , tog,raph vehicles of yesterday, are loomed as a possible obstacle to real- which the Associated Press main. ..7 ',,' ' ,1',:-:."',4 '."' -:'," .k. 0.6.,- .:)."- tunes the light valve mechanism by moved and developed. If the picture :r -1, . eeee, ,,, :eeHe--c, eeeere, . . - , ..,;.,eseee, - ,., . . e .:'-----e.-.----eeee--:e.,,,e.-Ve eeeee snaillike by comparison. l . It was necessary to obtain tains central offices, is located the - eem''':....".'.::."e.7..''..e.e;;.:.::::.:.:.,...::.,i:.:,..,:s;::;.. eeliter...,:i3e.4"':-: . the receiving machine, making the is the maximum size of eleven by . e -,41144:41PrIgderatastilliAtanetlit4021404Y4trafteht4g0 1..J...a.is . r . , . guarantors among the member news- equipment for sending and receiving :: , ee ei :.ze:.,-:-, e ::::.ee::::-e e. ve ,-e.,,,,e,,, tension on a little ribbon vibrate at seventeen inches its transmission ha e , ' ,'-iteeveeeee-e e ieeeeeeeereeetee - .. .. .... e............... :.:.:.....,,.--...,,... 33 Newspapers Linked , papers of the Associated Press to photographs and pictures by wire. ,',-'..-.:,-e ..,',.-:....'.??:g:...1::..7..'?..1',:.:...',1.,...lf ,i''',,:,,'"';'''-f4 a natural frequency of 1,200 cycles a taken just seventeen minutes, for ' el,e,e'e'eeiee"e:-.- :-:e:e- . ;',' : - -,,,eeeeeeeeeeeeeeeoeee.-eeeeeex , --"--eee -04COVVO':''414""'rlilinTO.VsT3"-',$-P'Wiiii,,, e ee ,,,,,..:, , . , . t . .. .,-, ,,,, ,.,5,-. ,1r,,k, .e-4 e,,,,i In those cities in which there are second.: This operation requires less the recording light, one one -hun- .: ... , .- ....- -. , - -,,,. , -, ... -,....- .. ... e..,,, . ,, ...,...,,...r.,6 .,, , .. . , .. ,,, ,,. V , - .. . , , , in I0,000-Mile Circuit - underwrite the cost of purchase and - -... , , , . , . . , : , .- ' , I , installation of equipment. The Trib- central Associated Press offices the A portion of picture an inch than five minutes. Then the control dredth of an inch wide at its maxi. - - . --- , : - - - , 1 , ., Wirephoto, materialization of a and the New York Daily News were equipment is in the central office. wide and I I inches deep can be station in New York opens the talk- mum, puts its Imprint upon the neg.- . : 777 rT , .... .. . . 7777-7.--...r.-7-7-77..,, '-'e.e 71e 7 ten year old dream and result of quick to act in the matter of under :7774 FAI, .. ,, r ;-'4,-,',.: The equipment room in each case transmitted in one minute. ing circuit All points report that ative on the cylinder, which is re- A':,::.',. $.!:e.eeeee. e:; ee ,, ' 4,tei':?.teeeeeeeseeer occupies 240 square feet of floor et e . ,A, it;, ,,t7,::;,:' :. - - - three or four years of careful plan- writing the huge expense Involved. , they are ready, and each lists whet volving at the rate of 100 times a , e ,,, , eeeeeee 0. p , . -ewe .e. ;;., eee t.' ' P',,,,,e r .,Arif, vs:,,i',,,:,-,,,',,,, Y:l.,::,-,.:,,k.:- i,,, . , - , , , ,,,....., , .. .., .., ..., space. e , i 70 1 0- 1, 1 l 1,,e'' .'7; ,..'" ' ' '', '''' 4.'4 ', -....,, :'. ',1 I. : ,:4,1..t., .: ning, begins operating now, today, to Also among original guarantors of power plant function is to supply pictures It has for sending.. What minute, at the rate of an inch a min ee - eel; ' ' $..if .---, . ewe ee..-- - ' -,;),,e,e,,--.e.''' , ' an absolutely copstant source of volt- pictures will be transmitted first and ute.., In other words a. portion of a , -.1 ee -'' ext ,e-:'e ee-eele -, morrow, not later. acording to sched- the project were newspapers in Balti- ;,', eee ;reeve eeeee. :-ee...ee ef 4;V:tee 4 ee,:e. .. ...,e f and Se other newspapers in 24 cities Cleveland Philadelphia, S ee ee-,-;, : , tie, than the new year. The Tribune more, Washington, Buffalo, Detroit, Pressing of a Button age to the sending and receiving ma- the order of sending all pictures of picture one inch wide and eleven - eeee,,,ereee,,eeeee.., -, ee....1.e.,:!.....e ,,,,,,,,......,eec:,...-e-.,.?...,,..-0...,...e.-,..;,....4..,.i..4.,.,,;ei,;:,,,,...4.e, ,e-ee-- e A- feee;le , eeeeseeleer, ..,..,...,:e.::::::.... :-..e..--: lee 4,- e ee---ereee;.e, e-eeeeee, ee; , t Louis, , Starts Wirephoto Day ' chines as no commercial source of the day are decided by the control inches deep can be transmitted in a ,?-41,;..,......i&:';,$...ir,".i. ..7., ,-1 .,,clerdli i ;::...,...-:....: ::.,..":,-':'.:',.111,:...1'.47; 7-..':-.''''.'..7;5;',.'....g::-.4.::.3:i.3' ''..'' ,'... . '..--,-,:.: are joined in the 10,000-mile network Les Angeles, Oklahoma City, Oak- electricity is steady enough for the station, though from time to time minute, the transmission itself s being ,.eeee.V!;;eleteee;-',:e,,,,,,,,,--,- ',':':;,.!:10 :1:.k.,.,..1::::.::::::.;.,r.:7::::.,k;:.. :,:,,:,,,:.::.::,eee ,t,l .i.,,,,'..-,..,;::1:..,.....4.1V.,,,.,$..:.,,,.-,IN,A,...,,-;',.1 of t h e Wirephoto circuit which land, San Francisco, Kansas City, . The Wirephoto day begins in each purpose . - The Power Plants consist throughout. the day . changes may be carried out, as pointed out before,. - l..e.:.eie'L-le-;'-';;'!eleelle-Zeleefe.,,-.,e'"?7,1.:ee !el!.'.::,::!:...'...,.e;!.:',::::::r::!:.e..,.,!:...:..e...e.::.:!eae.eteeeteet.....te.....iiele,,,,,er..,,1,Lealitee, .......1 . eeeosee..eeeereeee-lekeetee e.e.'..e.:::.:::e...,::::,.: .. s,:klelees.,- ' ,,,e''eeles''-e-F' :e : - : . - - -- of the 24 equipment rooms over the ' of special generators regulators and made in the order of sending for the with the approximate speed of light. ,' 't.e.eq'igeleq4;4:''1,4pe'!::: ?-t:::-;:'.!':::.::.:;:-:r.. :;,.....e; eieleeATes"..-teeeserk'ereet- m or- country with the pressing of a but storage batteries the last named in- purpose of pushing especially I p - , le eeee I.Veleee ete ee--, ' e 1- - : .: e ':'et e,e &ere:- e e,...ee vile., e , eke-tepee. e--tee,teeeee,ee-t-e.. '.. , ::,..1 't ,ti..- ''......:- .:,,,, 'rf.--1:;:-:;:A':;:.'-'4,;;.t'.'.1.7.'''..; .!':-':1 t ;;," 14'44 , ,,-, -- - ' ' - s.-.. L.-Fo !',.,'-:, t' p ;, .- -,.,k..-,---?(-7,-. ..1,- ton which sets in motion a power dicated on the key to the sending tent pictures ahead of others that More Than 60 Pictures .- 'r . -''. T. - .'. 4 -",- .....- Iti- ';' "',,,,o,lt tY..fr,,,',44fIle4. ' '1,..,'-41,44 .., 1.4'2:i!1..A4:7'..,,,,,:lttiq?:4,Ze4.1V;;;,:::,t. 414, p;'-:'0,''Z',.'::',,i4'. F. :--7.- .;:--' '., : 1,,,,-- - ,-. : '. -'. :- ' ,'; ,:.,' , ,.? '. - ..?,: .r .... ! , .; ' ' ' ;., .: ..'- 'CI', .- ...,...s -. -: :' plant a unit of the equipment which and receiving bays shown on this may have been scheduled earlier. the Average for a Day ,,,, --eia,;:tee,--e-..e,e, ,1190----..-....,-.,,e-eee-.--.',..eeeeeekeeeeee,e.e.v.....eeeee-eee;eee .,,........,..-..e.ee..eee ---'eee eeeee.,eeee'-eeee"Geeeereereleeee...,--iA '4'ee"eeee.e-e.eee.eeee.eeeeeeee: !!--e'...eNtel '-- e ' ' ' ' ' e-:e .,,,- e e. - -e.. ee- ,,z. ,. i.e.e eeeee. : ', I.- ..i 44 , :,;.1,--v,;,,:..1- includes a sending and a receiving page by the abbreviation G.T.Bats. Before a station sending a picture ' ' '1: .' .- '''... ''' : ' ''' .L......'''7"; ' . '';"' ' 'T et ''-' '. '''' '' '' '' !.. ! ) .1 ' .'.' ' ' ' machine d b a y or switch- ' The generators are the source of begins the actual sending it trans - ,, The operation achieved on the .. eeeeee''ee.e.tee,e'e,e:e','eeeee.-eeee-eeeee.eeeee.e.:,ee ,7...7,4,' "y',i."T''..,,'"''''-'LY??I':!-,,k,:': .s:Vs,,.;.';,:sr...V e ; i',.. ,,w"i .:,:,,..::,: ,..:;..,,,(,....,, ,.1.:, ,.,.,.,,..:,-,.::.e..',.;......-.'..."....t:,.,'"f,A - ..)!;.:: .,!,,. .'z'.:-y , . ..-..P.,.:, ..., ,.,: ,;:,,,n:.-" t' 1'..t.i?5,.w ,....4i.:'-i3e.......-.N".:.' ,:',.". ''':.:'''. ' 'f';A;,-V ..,:"--).., ''' :''' s' '' ' .' ' ' ' '' ...' . '. '7'...'... .' ...." .: .. . . . .." ..... '''. 1.- ..'.'...'t:;: . :' '''' A4.' ... ' -:.: ' - ' . -;. ' -: '',: '''''..."..':' ' . The panel contains power; - the storage batteries and , .- sending machine at the time the re- .,A.:,-,,-' .::, - .:,,,,.,,-in,i:,i:-,,:,f,:!'7 ,,t;-;,,,,..-i;,!:-,..,,,,e,v :,.....:,......-,..,,:s.,:-..?:,...,:-,--!-, -,:,,,,,,--,.,11,..,,.., ..? .:: t k... ' : ' "":' . '- : , ', - ! )1',;',,;;4.':.,-;-,;,;-;,,!'W-,-,a, alsq a talking circuit with loud 4,41 , . :: ....-;:. --.: ; speaker over which any point in the steady : ,' '- ',, ': ',..--- ,--', , -, ,. , . t board for each - -- regulators k e e p t h e - mits for a few seconds Into each re generators ceiving station an amount of power ceiving machines are getting the pic - . -ee,e2. e'Veeeece.-,,,e:''oe,-eeI.-'oe,-eee.ereee:4''eete,z::,ee.-e,-ee,eeee'eeeeeeeeee;eeg.- fi;,;,"1,&:,s,,,A. t circuit may talk to the others The l,,,,A,41'3:.1::,: ft...:1,,,-1,-.,,F,''y,:::t,,,::::?::'::1':,,',;;."1- ;,g,e. ':,!,P,,i, li'''-',,';',4k ':.:.:,'.,' corresponding to the lightest and the tures is much the same as that de- .... e.,eyee. . ek.eek.-e.-..e,:-ei::,:,,..:::-...e::o.,,.,eeetee.,,eeAeee.et:eete r3 -', ,. -:.'.!' e - . ,.:::,:l'''',5.,..!!r.,A,::' . .:J;,.:.M;.,.-';,'.7l."''' .;-..- t,'?:"..1'-'!,C.;'.ii- '- ' -:. .-. ' 1 Oe"'. .1 4'' '' .1..., '.'-..'. 17., -?-:'.. ,.. t ., .- - ,:-:. f :. , .....,.... : .. .. . ., ., . ,, , .. , , . 1 ; - --;' -" - ' ., - , .t ., .' ,jess"4 ..4:- :i..'' ' ., ':',.- :,-.'4.- f,". -., ' '-; ' -;-''' :,:. .f..' ,- The operator, having started his darkest parts of the Picture In (Luce- scribed in the preceding paragraphs, - eee . eke eeee,-,----.:..e..-.......,............. ,-.,,e... ,e,....,, ...-ee......., .....e..,.. 'lion Each point adjusts djusts Ito power though in the : reverse Vp . on the --eseee.,., 'It ,:- :-,,:':. i,i,,X.(;,::::4'.IX:..'-'.':?e;c:'''7:-..".0,,:'?',.f.-',...... NZ.r.' ::.,,:, ?. t -4,-., 'T. ,, - - '::-. '::.: ";':--4,c,, -,,,,,,;:w2.;,-::,.,-:,::,,,-'.--!,:.- -,'t-;0-Atii;n,-:-.ri,-,-'01'.',-,.,. :::.,: f:,1 1--,..:,! - .'.'t'M , -1.1..F...1..';,t;.-.4.q.,:,.,-,..!,..' .,..,..:.; -lirg-.,...--4:4Y,V4F;',..;4.;t.,';::":s.:41.r.7::::::,;-:..:;,':.:::'. el t .. , . : . :: H. r!......., .: . ',i.' : ,.!.: :.4 -::AV t,..'1.l.;,:,''',-,,--4, 't:, :.. :. :1,.. ,....?...,'- ,, to the receiving equipment at, the cylinder of the eending machine is - ; 'e g ,ee.eee:le,eeeeeeeeeee,:;eeeeeeeeeefeeee,ieeleeee1:'eee-e.e:eeeee-,ee-eeeeeee,e:'e,ee''-,,e - t, ' :-',1....:: ' . ' .':': .',':. '. i'.,:!,:, :.i,:-,',,:.:..i4-4.1-7 " ,4--:i::--,'.-, f:,.-1-:i-::::-.::.;::::,-.:-ri:.:;,:;,::::::44.i. -,...--,:.:f.. ' A''' ' ;I's' '.'"I:':' ' , ' '''''4..'"':'''4'."...,,,'''' ' ' Ar'4r,:t.'4' '''Ar.4;.:'''''';''':4.4 .1 ?,,,:...C".:....'4. value of those two -limit. knowing placed not a negative but a pesitive . eeeelteeeleee. . .,'-e.,',;?-e:4'...e.e'''1.C'el-e'::'.F;e7reee-,:e.,Ne.ele.-.....:.;:-e;,.:20ees-ete :!,:f eeepeee eeeeeezeeee.:',...-.- e-e ..';'''.. .',1,""-' ,7"74:'', -,:: ',. - -' t--;" .',43..,i'. "-; 4 .','-'::' 1.' 4.1 ."S, 1: ' : '... ' '''' ' '''; .: .','; .:. .... :. t:'4 , ' '..,t,4-447 -te,- 3 . .i,t .:; .....:";.::,i5-.-!;,:-,'1tf!''',-rf' -' .. ' .- .."!. f': ,' , -.',- ..:.,..4 . :. .' . '..........-i '-'-' -' '.' A .-,t-t? itiy.,. g?..;.::1:..'.:', ';'.':f.1-12,.'.1:'',,.?'. -. . ..:. ::',1.,, ....1 ' :,,.1-,.--L:',1-.......,..i...;'-..,:!..'1',11.4::"-"Lf::7:;:':".74.-4 .it.I.;!ti"..., .1:..,.,,,- .:-. ;,..71"0415W,,:,..v... ............,..,..:. ,.. ,... .:,,..:trt..i..:,...:..:::......:.::::. ).::.'::44....'...:!,.....:7........ -- ' that ' the receiving machine, when print of a picture or ' photograph.. .....:::,...ilt::;:::..14,..,,?,..::..:.:.........75:....,...:.......:..,......:,,.:.:...,..:.:,..,..........,.......,......::.41:::::;......7...,....:...L.T...,..7.,.....,:::.".7.i....,..........: ir.,:s.' ,.t.,:.,:yft,,.....,....,.,...,...,:';':').e...,......:'.:.....t,..,....:...:,,,...i...,...s..:..t....,1.t.......I...,.:'.:,.:..::...:,.,1:.:...t..,'..,...X..14.i....:'...,..:A:....:.:'',:.,::'...I...tr......,v4......,'.'.:'.i.t.7,'Y..?,..:...'...:.':..:.....'e:e...:..::.'..T...,.....,j,.",....,.. ,.. ad btaohftaejyriusieorgeetfbecetidetghlivatenoingnsd, rg, sending ndcomdaeinliarnvtke:e t machine two No I: a Ivnpreixnttr,emwes T ill , is per .:::::.:e... ,,,He'-,- , e-.e. '- - -1-:::r ':', '',:-:.- ''- ':::' ''')! ;t 4'4 '''' ' olhuetioc Then-comes- the sig,nal from the beam focused first on a light valve .5 ' ...,.,,.'i., -,..,, ..''.;; ..Af.::-,.' ,,.C,-;,.;-(. .t.,....,4 ,g5-.:. m ...1.,;..c...:ic ,--t-klet;,''''..1.'::?';'.. ,i'''' .--....:;: : ...'?'"..1V:..17 -.".C.'''''' ': 'tr.::, :.':-.1....:? :..::K.'' '-;;::::- 'It' , , : -three in aperture similar to the :light - valve - . - .7.,e'e..e-...,etee e ee e eee ' eireeeeeee eees -e-Teeteeee ,,4,-,.T., ,, !-;,-,t.,, ;, --4",,.,,,,-,-, -i. 3',--, ;,,,,,,,,; -,-,,,,. ,t,--, , 4.---'S ,-'- - - -I ' '';.:,i..-,g ,..t.- W. ', -,-A ;-t. - '.1": , ,- 4 - ' ..': ',:'.;;:,:;i .:-.'....;:'..':. )1--A'...;4;---,'-'t.,.'..---:', .''.:;.,'..:::: . . :-.-;;k7,iii'" . F'..... - ' ' :, 1:s.. -y- ,;,'-i-.:; '4'1' ,''- -''', 14: ,i c.-- ,,' "'. ' 4.'0,, - i. ,sett-s;," -1,-:.'"' '-,-,!t-'-' ::4': fa :,,,,,'-ik- '' ny slin adermtiunruntse.attbae hpurni dnrt e db erienyg- - - .., e -wes-.- eee.--- eeieeeeee eee ee :.. - 4::: :---e - , !rec.; ',',i-1: , :4,0 ,,1,,f1 s: ::.: tg--;i1;.:?'- , ,:;-,:,..:, . '..s.:!.t.:r:T.t. :,,:,',:,4 ... - Z-:1;;' -' - .... .-;,...i,...-.;7:at-'7.--r,f,- -,;, ' : - ' : Y:41'''.4.k ''''.rI'' ' ... '.N' . .;;.:',-:.::.,;.;:k' .11:- ''..,,.,... .i: :X. N.:. 1..:: '')Y . ,.:'''-' .- .":",4;;.',- '.....-,. 7.?:!' .i.:1'.. ls, ::;. ';;' .: 'A -",4': 'J;I"',' A ;;If.:,,- ..1 ?: ,,,: ' .. r.i',.',.-'', ,.5PN, k .-4.,...,-:, - ,..,.,,.!.- :, . -,-,f, -?;:, 1,,,, Ay-,it,,r.,1its,....- t.., ,:c...-,:::i.:,.. ,r1,.:,,:',- .,: ...,,,, .:-,...,::4.,...,..",.:.,,:-:..:.::,:.A .. handle , normally - ,a11- intervening . scanned in strips of, one one - hun- - -... :: ': ,. :..., -..:: :: -::. -".:,..:,.4 '.:::,....,...,".,1-.-..,-.:,..,:-.4:::..-,--!- 4: .: :-.: .:" i:. --,,.,',':-..:-..s.:.:,,-':;,f-... ::-.:.-,:,.,:.,,,::-....,;:.-..:, . , ' ';':. iN ee e e .e..: ::,e:. ":77,,beete it ee.:.:,e.e:.e....eseei eee. eI.,....:-, :e.e.e.,:y ; shade - , - ,. -.. ' - ' dredth of an inch by rneans of a light 0,i .. ' ' , - ' ' .7 . . , -..- . ..,,,,,,,ii,' ,',,,,,,,,,,,:...,,...,,..,.... .... 'Vt.'''. . ' is -......-, ,,,ou.,L-,..;-4.-",,,o:....'.;...,'...iomdo.oatlmmebL'ilik.ke,AodeALowmtc;dosaxcoshurgomtaooamo .F.': .''; : 1,; i '',.:'''.7.".:.! ':7'.: '':..:".'::-..4:''''t.;'.k.,4 k AA .:.' ....,, . ..:: .. : , f.,71, A.,'A.'i, ;;,i 'A terruptions of power-and operators used in sound picture, work. The es. - - , 4-,,, e. ," - ...!ereee cr., ;4-7,e:et 1 :Lee. . , ,,,e ' " , N- '', ''-' -t ,-...:;,.''',-,-'.,,-'..; irs'"4-.',7 . , . ,, . , ,it, ii c. 1 ,4:: ::: ::!..f..,:'',;:,,.!:,,:::..... :,:, :. :...::::-Vs ...,...;H ,,.::1-: I .'....i2:,-,:,,S,,,'A M'e.,.:',M;6 ....-.A1,..: t button onnd on cvya valve of 274h000pcs the cycles ,bpassing eam e a q t a pulsating , f v ' , t S' ' , ., t 0, , , , . tV ,r,,,,t .,,, -' -a, , - -", - ' ,,,.- ' -'''''''7''''. ' ,;.ii,vv.ii.ig444.,- .10M-. ,..-4. '',,Ii If f: :.,:::.;:::?;:. ,.,::,, :-7:::s:f :"' "r........, .. . ., i? 0 17- i.4 .,',.;,..1 t .i,'':A.:f s. .64: Iktfiliiivrof mq, ... . 440.i.,Ve.egm, 5.-- , - . er .... - -.,:.::....- .: .-.... ...- ...:. .,....,-....., ,,.-- -,:lei $ -.4 - .- - ' 1" ' ' - - ' ' - ' 4 '1 - - 4- 1,;0'-',.,,, F'''1, ,,,,, - -.. ' . .-1' . . 141,. 4 . . ''. Z ,-1 .; 7. ,:::'!::;;::::.::::,:.. :: 4 ...ii;4?.:. .... .::..:::: ::: ':.. .i :. , -'1,... :1.:: ,:.,,..., . 7'. ' "1- , , r, . ::.i.,.:: ;F.::: . ;;,, .jk, .n .:X:: ,,' wo , later , a button on the sending bean !' which is turned through ninety -- mg.,,,,,..,:;. ,:t.. '..-.:.- -:-, , , :'-:ci'.,-- .1 : -: -A. ''''"''' ',..'''W,'-'i, 7i l.,i4,,,f, ., :-'!''. '''"''' .' ' 1 ''-,, l'-': ;1,4--::.:::::;:il':;.::-:':;i::::.:' ---:::,:;.::'':.;:;:,' ';k-,::':-.7'' ''--416 3 '114,1, '.---''!:'.,..!::?4:.)::.A 1:.::X machine Is pressed , starting at the degrees of focus sharply on the sur e e - , .eei . le -.eP.I"' te' "eeeeeetoet-..e.'.7167,;.:7:reeee:e.i..el:,-,e;-,;;',..;i,:'::-:.::e's: . ':':::;1.: 2 le :.: ee ':,-e' t': ee. ,e ;.,...-:-,eeo.e e ,ele'.e..e.: , ',' ...lee. .,..,,,.. ,e-e,e, ,-, 1 ,,,,,i eeleeeeeeeeeee,,,.. .--e' :-c''.... -.0e:- - ,,,,,-. .,..4. ,,, :.,:,;,: -, --- - -.---.I.,,,v, , ,...:,:.; , same instant receiving machines on face of the picture. , , - :.e..-e.e-.': .;.-e,...., '.3:'--e e.''' :-','"-,e-c e:-.:.:::.:,::,:eeeeeee.e.,,............:,,.... f,:.-e'...e,,,,e,e.el....e.e.,....R,,,:,::.:::...-,::.,..e;,----,--;., . .. ; . e--. .. e---- e, ' ;.'....:: ,. :.' , , :.... ; : : . . . :.',,- mf't,:.. - '; . -...:. ., . '...1.' ' 1.,,; '-' ,, , , i .,:,,, ,z.,,e.,...:::-ee..-,.. .-:-..1.4 ;..,.:.:e,:.i. r,1::-':',7;(E :::,;::.i.V., ....- 1,:'... '.i::....:.." h circuit. ..,,,...s.:, ,...A,::g.,, . VA.:4f,, the crcut , , I , . ,, ; , ,, , Since the light reflected rom the . ,,. e. e .".,,,eeee ....,, e-- ee , - . - . 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' . ,p..,4,,,, A, cylinder on the receIVITIg mi. fieetion to a pbotocell. , The light :,..,:,,,, .e,e...::,i.. . chine; at every 'station, eighteen - :valve, an aperture one one-hundredth - r-.-ee.e-e:.ee -, , .... inches long and twelve inches around, - of an inch square, is partly covered -eaeeeeeVeeezeee.,ZeVne$1.::' ''.','-......eeel.e;eeeo.fteeee.,71s- 4- '''.1 : ele'4.;'4.'"e-::.'."''' e ...:"e'"':..' -: :.'.'. e,", e.:.,eeeeeeeee -., -'-'-' .'.:eeie:eeeeeeeeee..eoeeeeeeeee..e-,,,e,,,eeeee(2,4,..::':-- 7 :: K ,:,:' ,,,r,--... :1-,::-,s,t, .g, . ,,,,,..,,A,. 5,,.,:,:,,,-,,,,,,, ,:..1:,-,f ,,,, . -..,.....tak,.:,,,,,::::,,:Vi I , :.: . . ,, .. ..:',. . -, a. , e en ' loaded with. a negative , . by two deralumin ribbons connected... , ,-ei'Vee-e'e,e7,,,;,,....,-;;n,' , "t,::4:",,.:::,cE: .4.,,,4-'!--r.v1,7,se-4,r:,:z-;.,.,A5.;:zil,,.-.s., , , .:.,..,:. .:::;,: ,:,. . -A;;;4:Mi:17;.,;, le 3 b - . . 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