Evening Star Newspaper, January 14, 1923, Page 6

'CTURES'SEEN AND HEARD RADIO DEMONSTRATION | of Jenkins vention. STUDY USES IN WAR AND PEACE Faces of President :!Vval # “Plins for the practical utilization the United Statés government inj| wiies qf war, or.‘peacei:of what is Ball a5 one of the ougstanding in- i venfiong gt the age—radio, plotures—1° are ‘being considered by high naval offfctals, it was disclosed for the first tithe’ today trom an adthoritative sourge. ‘ 5 Intgrest of oficials in the possibil- 4dlo’ transmission of photo- half-tones and otWer pictures invention of a Washington solgatist, C. Francis Jenkins—dates froim the successful staging in this city Wecently of a demonstration of the newlinyention before a group of adio experts of the' Navy and Post Office departments and a representa- tve of the motion picture industry Becrecy which has surrounded thiy test was partially lfted last nigh by Mr. Jenkins with the sanction, it is understood, of the naval author- ities. The demonstration took place December 12 before a group Wwhich included Admiral F. S. Robinson, member of the general naval board; Admiral Henry R. Zeigemeler, in charge of the bureau of communica- tions, Navy Department; Capt. J. T. Tompkins, Commander Stanford C. Hooper, head of the naval radio sec- tion; Lieut, Commander A. Hoyt Tay- lor, In charge of "NOF,” the Navy broadcasting station, at Anacostia Lieut. Commander E. H. Loflin of the Anacostia station, and ‘other naval officers, in‘addition to J. C. Edgerton, then supervising radio activities for the Post Office Department, and John M. Joy, representing Will H. Hays and the amalgumated motion picture industry. See Pictures Received. Duripg the demorstration photo- graphs und drawings were broadcast through the ether from the Anacostia station to the Jenkins laboratory, at 1518 Connecticut avenue northwest. Commander Taylor stayed at Ana- costia and supervised the sending unit, while the remainder of the offi- clals gathered about the ~small cameralike receiving apparatus - in the Connecticut avenue laboratory and witnessed the reception of the pictures on negative photographic plates and watched their printing in the developing room. Following the . exhibition, _which progressed without hitch of any kind, the officials are said to have congratu- lated Mr. Jenkins on his invention and to have expressed enthusiasm regarding the many and varied possibilities which the machine holds forth. Four pictures in all were broadcast during the test, which _itself consumed about half an hour. Two photographs, ome of Secretary of the Navy Denby, and one of President Harding, and two penciled sketches, one representing a map and the other comprising. Writing and printed letters, were used. Al- though the photographs of President Harding and Secretary Denby which were transmitted were said to be none o0 good from a photographic. stand- oint, the prints made from the receiv- & late iri ‘the laboratory were quite clear, the heretofore impossible feat of ‘broadcasting_half-tones being success- fully accomplished. Six Minutes in Operation The portrait of President Harding which was sent through the air was the same as that published in The Sun- day Star recently in connection with a detailed account of Mr. Jenkins' inven- tion and its possibilities. The photo- of Secretary Denby was selected, it is understood, as being the:subject “favoride.” ‘About six minutes was required for the recelving of each picture, but the inventor: predicted that this tme could be reduced to one-sixteenth of a second, the speed necessary to produce motion pictures. With this development, Which Mr. Jenkins expects to perfect within about eighteen months, radio motion pictures, synchronized with radio mustc, will be an accomplished fact. Prior 40 and immediately after the test the officials were conducted on a visit to all the rooms of the small lab- oratory. The men manifested particulur interest in the shop where the ‘‘pris- matic rings,” which make possible the sending. of holf<tones by radio, are ground, into shape. The present status of the official in- vestigation, it is understood, is that the ofticers are studying the various phases of the iInvention to ascertain to what extent radio pictures would be of help in war time and to report on. how the' government could de- veloy 'the invention for practical m—\-fce in time of peace. Another Test Likely. Mleanwhile, it was learned, arrange- ments probably will be made for en- .officldl demonstration, this Wetween a distant sending sta- Such a# Mineola, L I, and Washington. Mr. Jenkins claims that the distance which pictures may be sent by radio depends entirely on the broadcasting power of the radio sta- tion selected. It is not unlikely that beforedong one of the powerful send- ing stations will be used to send photographs across the Atlantic as an experiment. A human interest angle to the test last month developed when one of Mr. Jenking' assistants demonstrated to those present that he could identify the photograph belng received by “sound.” Picking up a headplece which was connected with the recefv- ing set, and from which the monoto- nous serles of “groa: caused by the pitture -impulses were belng emitted, tle 'young man announced that it was Secretary Denby's like- ness. This was found to be true when the plate was developed. The as- sistant explained that he had trans. mitted the picture so often that he had learned to know how it sound- ~d. Several of the naval officers “listened” to the Denby pictura also. Mr. Jenkins pointed out that it is possible _other _receiving stations around Washingfon “heard” the pic- FINANCIAL. $100,000 Available to Buy Good 2d Trusts of 1, 2 & 3 year maturity; monthfy or, annial pay- ments, . Private funds. Herman Schmidt SECRETARY DENBY. This photograph was transmitted by radio in & recent tést here. While by mo = ood ‘picture, phote- sraphically speaking, ‘the likenesw in Seientinty believe there thig new fea. ture of radio work. tures being sent, but could not ex- plain- for themselves the reason for the strange succession of sounds. The _sending apparatus consisted of a stereopticon-like machine, which | Projected the pictures across a photo- electric cell in steady, downward sweeps. With each “sweep” across the cell the projected image was moved. imperceptibly to the side, so that only a thin “siice” of the image was drawn across the cell at one time. As each “slice,” with its vary- ing intensity of light caused by the shadows of the picture, was drawn acrosy . this lisht-sensitive cell, the current. passing through the cell was varied ,correspondingly, the Impulses being then broadcast;over a regula- tion navy radio set. At the receiving end a simpler out- fit was used, consisting of an or- dinary radiophone receiver, on the | diaphragm of which was mounted a tiny mirror. Projected on'the mirror was strong beam of light, The vibrations of the mirror as it oseil- lated with the diaphragm caused the beam of light to fluctuate across what is termed a “filtering shutter, and thence through rotating ,pri matic rings onto_the sensitive photo. graphic plate. The rings automatis cally reversed the “sweeping” process carried out at the sending end, the light impulses being virtually “laid down,” side by side. as 4 they were taken from the original picture, 8o as to build up pgain the -broadcast pic- e, Mr. Jenkins claims a-great future for his invention, especially in time of war, since maps, code messages and similar secret ‘documents ma: be transmitted in such a way that no one but the person for which they are intended may receive them. —_— DETECTIVE KNOCKED. OUT TRYING TO SEIZE LIQUOR Trylng to prevent a negro from throwing half-gallon Jars of liquid evidence out of a window to smash on the street below brought to Ninth Precinct Detective Dewey: A. -Davis last night a heavy blow on the chest, and several moments of oblivion, The rald took place at the home of Rose Carroll, colored, 644 Brewers court, between 6th and 7th,.G and H streets northeast, whera officers found a colored man named Henry Gross of 611 Virginia avenue south- east and four hali-gallon jars of evidence, hen Gross began pitching the out of the window to meaen o the stones below, Detective Davis in- tervened to save' the liquor for pres- entation to the court. Gross, accord- ing to the police, then knocked: him into unconsciousness and all the jars were smashed. Davis was revived by the associ- ates, Detective _Kuehling, Sergt. Loman, Privates Wilson and Mulky, and FRevenue Agents Fowler and Evans, and the man and woman were taken to the ninth precinct. Rose Carroll was charged with selling and lllegal possession of liquor, while Gross was charged with assault and “breaking glass on the street.” .25¢c Grade Mnrql:slmte. white cream, or ecru. yards for. $l .00 27-inch Scrims, some with lace insertions, others with lace edge. 7 yards for $1.00 - 6 yards for - § yards for $1.00 4 yards for $1.00 Best Grade Cotton Dotted Swiss, one yard wide; regular 35c grade. 4 A for . o el Lt Hemstitched Voile, qwithi ‘edge; ecru color; regular.’ &« ?gg grade. 5 yifds $l.00 Quaker Filet Sectional Panel, 2% yards long; regular price, 4%-inch Net, vecy Bne.qu_;‘lity i $1.00 blc retonne, k_‘ligln K e o0 Pk g1 00 Cretonne, in all colors; 69 g ilahondl || L wost. ehickens "to. Gietsalne BE $18" APARTMENT RAID NTSGINSUPRLY Mrs. Margaret Harrison and Son Arfested ‘i Exclusive” Haddington by Dry Agents. 1 The vice squad walked into the exclusive Haddington apartment house at 1840 Biktmore street last night and raided the apartment of Mrs. Marga- Tet® Hartison, “thirthfour ~ years = of sme. v 4 Y il = g Mré. Harrison and her son, Tom. a nineteen-year-old student at a local university, were charged with illegal | possession and selling of intoxicants, {When taken to the second precinct. | They were accompanied by a man, who refused to give his name, but who had walked into the apartment with Mrs. Harrison shortly before the, police made the arrest. No charge was | placed against him. The raiding squad obtained entry to the apartment by the use of @ du- plicate key. Nobody,was home. Sur- rounded by expensive tapestries and antiques, and sitting in luxurious chairs, Lieut. Davis, Sergt. McQuade, and Revenue Officer Ruby awaited the | arrival of Mrs. Harrison. 1 Gin Ty Seized, | When Mrs, Marrison arrived, with | her son and the unidentified stranger, | she was notified of he rest. Search of the apurtment uncovered a quan- | tity of giu. Arrungements for bond were being made at midnight. A $10 | bill, which was used, it is alleged, in Lmnking a sale, to_an agent for the police, was found In the house. Among the ralding officers were | Revenue Agents Packard and Fowler {and Policemen Bauer, Brodis and Mo- Ginty of the second precinot. Accord- ing to the police, Mrs, Harrison ad- mitted making a sale of liquor and of accepting the marked bill in pay- ment for it Raids in Georgrtown, In the meantime, police of the seventh precinct were also conducting raids. Among those listed in;the Georgetown istrict were the arflests of Preston Watts and_Walter Jef- ferson, both of 3326 M street, on charges ¢f selling and illegal pos- sessjon. © « Mabel Mullen of 3233 M street, aged thirty-three years, was arrested b)'l policemen from the seventh precinct, on charges of selling and illegal pos- ! session of liquor. She furnighed $1,500 bond. { s The seventh precinct raiding squad: consisted of Capt. Bean, Lieut.:Pler- | son, Precinct Detectives Burke and Dowd and Revenue Agent Ruby. —_— CHICKEN THIEVES ACTIVE. Nearly Fifty Fowls Reported to Police as Being Stolen: Thieves with a . weakness- for! chicken raided grocery stores in sey- eral sections of the city last night, and when the desk. sergeants had finished . taking reports nearly fifty fowls were among the missing. Abe Kimble, 248 11th street north- east, reported a coop containing njme, chickens stolen from in front of his store; value, $10. Morris Silverman, 1212 Upion street and twenty-eight were missing fro his place of business; value, §28. ~ Samuel Borak, 1037 2d striet youths gone. Morris Wishnovsky, 601 New Jer- gey avenue northwest, coop contain- ing $15 worth of the costly fowls taken. PLAN FINAL DRIVE Mifhers and Teachods to Take Coi-} certed Action on School Bill. ! The , Congress: of Mothers - and Parent Teachers' - “Association will Iplan a final drive to obtain the pas- sage of the school legislation before Congress at a meeting to be held at the New Ebbitt Hotel Tuesday after- noon .at 2 o'clock. The congress will also participate in a mass meeting of citizens at the Central High School on the night of January the purpose of which is to bring “concerted action” to bear of Congress. in regard to the schdol legislation. | FOR HOME BEAUTIFYING At Wonderful Reductions Monday and Tuesday ] Cretonne, extra fine quality; 30c yard usually. i T, 2. Y2rds 61,00 it e 2 $1.00 Shedil ) Sk Sein 2 S ) — R yaeds Toreere > $1.00 I e e R ;:**Art. Ticking, in' colors of ‘blue, Tyaras Tor ihts 9100 27-inch Linene Slip Covers,- oyarasdor,eeee.rs 91,00 ot 1. CASEMENT Cioth;. regular 65¢ ‘quality; ¥¢olor: Tblue, 204 yatd _for e 'fons, 2 for. ... Régular 69c Window Shades, :‘,‘;wzz{.fet’ lel cd:“szl_,_‘m & Duplex Window Shades, fecn d white; e e $1.00 " NOVELTY ' AND SUPPLY STORE Retail southwest, complained that ra copp|. selves with broken sizes in 500 fine suits. Their fabrics and styles are splendid, their tailoring by hand. Some of them have two pairs of trou- sers. All of them have been selling from $35 to"$45. only have two clearance sales a year, and as this is one of them, they go on sale Monday morning, at 8:30, at