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Multiplex telegraph Stock Photos and Images
!930's scene in the central telegraph office, St Martin's in the Field, London showing a 'Multiplex' set ready for action Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/!930s-scene-in-the-central-telegraph-office-st-martins-in-the-field-london-showing-a-multiplex-set-ready-for-action-image178943470.htmlRMMB3G66–!930's scene in the central telegraph office, St Martin's in the Field, London showing a 'Multiplex' set ready for action
GRANVILLE WOODS (1856-1910) American inventor Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/granville-woods-1856-1910-american-inventor-image153928519.htmlRMJXC1B3–GRANVILLE WOODS (1856-1910) American inventor
'General view of the multiplex telegraph room at the S.C. School of Radio and Multiplex Telegraphy, part of the College of the City of New York. This photograph, taken in December 1918 by photographer A.E. Sproul, shows a bustling room with multiple operators working the telegraph system.' Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/general-view-of-the-multiplex-telegraph-room-at-the-sc-school-of-radio-and-multiplex-telegraphy-part-of-the-college-of-the-city-of-new-york-this-photograph-taken-in-december-1918-by-photographer-ae-sproul-shows-a-bustling-room-with-multiple-operators-working-the-telegraph-system-image558393555.htmlRM2RCD0JY–'General view of the multiplex telegraph room at the S.C. School of Radio and Multiplex Telegraphy, part of the College of the City of New York. This photograph, taken in December 1918 by photographer A.E. Sproul, shows a bustling room with multiple operators working the telegraph system.'
. The Americana : a universal reference library, comprising the arts and sciences, literature, history, biograhy, geography, commerce, etc., of the world . hes, largely used in Europe, the uniformrotation of the transmitting and receivingwheels is maintained by a nearly synchronousrotation of the motors at each end of thecircuit, and, in addition, by a correctingdevice applied to the type wheel. See Syn-chronous Multiplex Telegraph in this article. A theoretical diagram of a simple step-by-step printing telegraph sjStem is shownin Fig. 18. The transmitting apparatus con-sists of a long cylinde Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/the-americana-a-universal-reference-library-comprising-the-arts-and-sciences-literature-history-biograhy-geography-commerce-etc-of-the-world-hes-largely-used-in-europe-the-uniformrotation-of-the-transmitting-and-receivingwheels-is-maintained-by-a-nearly-synchronousrotation-of-the-motors-at-each-end-of-thecircuit-and-in-addition-by-a-correctingdevice-applied-to-the-type-wheel-see-syn-chronous-multiplex-telegraph-in-this-article-a-theoretical-diagram-of-a-simple-step-by-step-printing-telegraph-sjstem-is-shownin-fig-18-the-transmitting-apparatus-con-sists-of-a-long-cylinde-image369771412.htmlRM2CDGF5T–. The Americana : a universal reference library, comprising the arts and sciences, literature, history, biograhy, geography, commerce, etc., of the world . hes, largely used in Europe, the uniformrotation of the transmitting and receivingwheels is maintained by a nearly synchronousrotation of the motors at each end of thecircuit, and, in addition, by a correctingdevice applied to the type wheel. See Syn-chronous Multiplex Telegraph in this article. A theoretical diagram of a simple step-by-step printing telegraph sjStem is shownin Fig. 18. The transmitting apparatus con-sists of a long cylinde
A photograph taken on April 27, 1919, in the Multiplex Telegraph Room of the Signal Corps School of Radio and Multiplex Telegraphy in New York. The image shows equipment and operators working in the room. It is labeled with the subject number 58902 and is marked for official use only. Photographer: Reed. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/a-photograph-taken-on-april-27-1919-in-the-multiplex-telegraph-room-of-the-signal-corps-school-of-radio-and-multiplex-telegraphy-in-new-york-the-image-shows-equipment-and-operators-working-in-the-room-it-is-labeled-with-the-subject-number-58902-and-is-marked-for-official-use-only-photographer-reed-image558563275.htmlRM2RCMN4B–A photograph taken on April 27, 1919, in the Multiplex Telegraph Room of the Signal Corps School of Radio and Multiplex Telegraphy in New York. The image shows equipment and operators working in the room. It is labeled with the subject number 58902 and is marked for official use only. Photographer: Reed.
THE GREAT EXPOSITION—LETTER FROM UNITED STATES COMMISSIONER PROFESSOR R. H. THURSTON. The Multiplex Telegraph., scientific american, 1873-09-27 Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/the-great-expositionletter-from-united-states-commissioner-professor-r-h-thurston-the-multiplex-telegraph-scientific-american-1873-09-27-image334315606.htmlRM2ABWAY2–THE GREAT EXPOSITION—LETTER FROM UNITED STATES COMMISSIONER PROFESSOR R. H. THURSTON. The Multiplex Telegraph., scientific american, 1873-09-27
A photograph of Sgt. W.S. Legge at the Multiplex Telegraph Printer Department in Tours, Indre-et-Loire, France. The photo was taken on November 15, 1918, and depicts a general view of the department. The image measures 6 x 8 and was officially issued by the War Photo Council. It was also approved by the A.E.F. censor. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/a-photograph-of-sgt-ws-legge-at-the-multiplex-telegraph-printer-department-in-tours-indre-et-loire-france-the-photo-was-taken-on-november-15-1918-and-depicts-a-general-view-of-the-department-the-image-measures-6-x-8-and-was-officially-issued-by-the-war-photo-council-it-was-also-approved-by-the-aef-censor-image558486480.htmlRM2RCH75M–A photograph of Sgt. W.S. Legge at the Multiplex Telegraph Printer Department in Tours, Indre-et-Loire, France. The photo was taken on November 15, 1918, and depicts a general view of the department. The image measures 6 x 8 and was officially issued by the War Photo Council. It was also approved by the A.E.F. censor.
EB1911 Telegraph Multiplex Working Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-image-eb1911-telegraph-multiplex-working-162264987.htmlRMKBYPJ3–EB1911 Telegraph Multiplex Working
The image shows the machine shop at the Signal Corps School of Radio and Multiplex Telegraphy in New York. It was taken on April 27th, 1919. The machine shop is a part of the school where military personnel are trained in radio and telegraph technology. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/the-image-shows-the-machine-shop-at-the-signal-corps-school-of-radio-and-multiplex-telegraphy-in-new-york-it-was-taken-on-april-27th-1919-the-machine-shop-is-a-part-of-the-school-where-military-personnel-are-trained-in-radio-and-telegraph-technology-image558454232.htmlRM2RCFP20–The image shows the machine shop at the Signal Corps School of Radio and Multiplex Telegraphy in New York. It was taken on April 27th, 1919. The machine shop is a part of the school where military personnel are trained in radio and telegraph technology.
![Granville T. Woods, 1887. Inventor Granville Tailer Woods, the first African American mechanical and electrical engineer after the Civil War. Invented the Synchronous Multiplex Railway Telegraph which sent messages between train stations and moving trains. From "Men of Mark: Eminent, Progressive and Rising" by William J. Simmons. Stock Photo](https://c8.alamy.com/comp/2MBH5EX/granville-t-woods-1887-inventor-granville-tailer-woods-the-first-african-american-mechanical-and-electrical-engineer-after-the-civil-war-invented-the-synchronous-multiplex-railway-telegraph-which-sent-messages-between-train-stations-and-moving-trains-from-quotmen-of-mark-eminent-progressive-and-risingquot-by-william-j-simmons-2MBH5EX.jpg "Granville T. Woods, 1887. Inventor Granville Tailer Woods, the first African American mechanical and electrical engineer after the Civil War. Invented the Synchronous Multiplex Railway Telegraph which sent messages between train stations and moving trains. From "Men of Mark: Eminent, Progressive and Rising" by William J. Simmons. Stock Photo")
Granville T. Woods, 1887. Inventor Granville Tailer Woods, the first African American mechanical and electrical engineer after the Civil War. Invented the Synchronous Multiplex Railway Telegraph which sent messages between train stations and moving trains. From "Men of Mark: Eminent, Progressive and Rising" by William J. Simmons. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/granville-t-woods-1887-inventor-granville-tailer-woods-the-first-african-american-mechanical-and-electrical-engineer-after-the-civil-war-invented-the-synchronous-multiplex-railway-telegraph-which-sent-messages-between-train-stations-and-moving-trains-from-quotmen-of-mark-eminent-progressive-and-risingquot-by-william-j-simmons-image506239410.htmlRM2MBH5EX–Granville T. Woods, 1887. Inventor Granville Tailer Woods, the first African American mechanical and electrical engineer after the Civil War. Invented the Synchronous Multiplex Railway Telegraph which sent messages between train stations and moving trains. From "Men of Mark: Eminent, Progressive and Rising" by William J. Simmons.
The College of the City of New York demolished a forge and foundry room to create a Multiplex Printing Telegraph Room for the Signal Corps during World War One. This image captures the room, which was equipped with modern printing telegraph technology. Official use only. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/the-college-of-the-city-of-new-york-demolished-a-forge-and-foundry-room-to-create-a-multiplex-printing-telegraph-room-for-the-signal-corps-during-world-war-one-this-image-captures-the-room-which-was-equipped-with-modern-printing-telegraph-technology-official-use-only-image558224255.htmlRM2RC58MF–The College of the City of New York demolished a forge and foundry room to create a Multiplex Printing Telegraph Room for the Signal Corps during World War One. This image captures the room, which was equipped with modern printing telegraph technology. Official use only.
Telecommunications mast with lots of ariels on it Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-telecommunications-mast-with-lots-of-ariels-on-it-14006336.htmlRFAFRC5N–Telecommunications mast with lots of ariels on it
Caption: 'Photograph taken in December 1918 at the S.C. School of Radio and Multiplex Telegraphy, located in the College of the City of New York, New York. The image captures a telegraph room, identified by the symbol 'C.A.S.' (presumably for the school), where students are seen practicing telegraphy.' Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/caption-photograph-taken-in-december-1918-at-the-sc-school-of-radio-and-multiplex-telegraphy-located-in-the-college-of-the-city-of-new-york-new-york-the-image-captures-a-telegraph-room-identified-by-the-symbol-cas-presumably-for-the-school-where-students-are-seen-practicing-telegraphy-image558453190.htmlRM2RCFMMP–Caption: 'Photograph taken in December 1918 at the S.C. School of Radio and Multiplex Telegraphy, located in the College of the City of New York, New York. The image captures a telegraph room, identified by the symbol 'C.A.S.' (presumably for the school), where students are seen practicing telegraphy.'
Mobile mast cell phone mast with blue sky and sea Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-mobile-mast-cell-phone-mast-with-blue-sky-and-sea-125260772.htmlRFH7P3B0–Mobile mast cell phone mast with blue sky and sea
Interior view of the Telegraph Room at the Signal Corps School of Radio and Multiplex Telegraphy in New York. This photograph was taken on April 27, 1919, by Photographer Reco. The image shows the equipment and personnel responsible for sending and receiving telegraph messages. The description emphasizes that the photograph is for official use only. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/interior-view-of-the-telegraph-room-at-the-signal-corps-school-of-radio-and-multiplex-telegraphy-in-new-york-this-photograph-was-taken-on-april-27-1919-by-photographer-reco-the-image-shows-the-equipment-and-personnel-responsible-for-sending-and-receiving-telegraph-messages-the-description-emphasizes-that-the-photograph-is-for-official-use-only-image558375035.htmlRM2RCC51F–Interior view of the Telegraph Room at the Signal Corps School of Radio and Multiplex Telegraphy in New York. This photograph was taken on April 27, 1919, by Photographer Reco. The image shows the equipment and personnel responsible for sending and receiving telegraph messages. The description emphasizes that the photograph is for official use only.
. Bulletin. Science. Figure 51.—Baudot's multiplex telegraph transmitter keyboard. The cadence counter on top of the case enabled the operator to transmit at the correct speed. From La Lumiere electrique, 1882, vol. 6, p. 81. The line of electro-acoustic experimentation that resulted in the telephone started with the discovery that an electric current could produce those mechani- cal vibrations that we hear as sound. As early as 1837, Charles Page found that when an electromagnet. Figure 52.—Baudot's multiplex transmitter distributor com- inutator. From La Lumiere electrique, 1882, vol. 6, p. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/bulletin-science-figure-51baudots-multiplex-telegraph-transmitter-keyboard-the-cadence-counter-on-top-of-the-case-enabled-the-operator-to-transmit-at-the-correct-speed-from-la-lumiere-electrique-1882-vol-6-p-81-the-line-of-electro-acoustic-experimentation-that-resulted-in-the-telephone-started-with-the-discovery-that-an-electric-current-could-produce-those-mechani-cal-vibrations-that-we-hear-as-sound-as-early-as-1837-charles-page-found-that-when-an-electromagnet-figure-52baudots-multiplex-transmitter-distributor-com-inutator-from-la-lumiere-electrique-1882-vol-6-p-image234186638.htmlRMRH03CE–. Bulletin. Science. Figure 51.—Baudot's multiplex telegraph transmitter keyboard. The cadence counter on top of the case enabled the operator to transmit at the correct speed. From La Lumiere electrique, 1882, vol. 6, p. 81. The line of electro-acoustic experimentation that resulted in the telephone started with the discovery that an electric current could produce those mechani- cal vibrations that we hear as sound. As early as 1837, Charles Page found that when an electromagnet. Figure 52.—Baudot's multiplex transmitter distributor com- inutator. From La Lumiere electrique, 1882, vol. 6, p.
AMERICAN INDUSTRIES No. 34. A Coal Miner's Day's Work. AGRICULTURAL INVENTIONS. Chasse's Multiplex Telegraph. A Log Railroad., scientific american, 80-03-13 Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/american-industries-no-34-a-coal-miners-days-work-agricultural-inventions-chasses-multiplex-telegraph-a-log-railroad-scientific-american-80-03-13-image334323062.htmlRM2ABWMDA–AMERICAN INDUSTRIES No. 34. A Coal Miner's Day's Work. AGRICULTURAL INVENTIONS. Chasse's Multiplex Telegraph. A Log Railroad., scientific american, 80-03-13
EB1911 Telegraph Grouping of Segments in Multiplex System Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-image-eb1911-telegraph-grouping-of-segments-in-multiplex-system-162264989.htmlRMKBYPJ5–EB1911 Telegraph Grouping of Segments in Multiplex System
Mobile mast cell phone mast with blue sky and sea Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-mobile-mast-cell-phone-mast-with-blue-sky-and-sea-125260785.htmlRFH7P3BD–Mobile mast cell phone mast with blue sky and sea
A photograph showing a multiplex printing telegraph at the School of Radio and Multiplex Telegraphy in New York during World War One. This image was taken by photographer RECO on March 27, 1919, with the assigned subject number 58909. The photograph is marked with the issued number 'M AU.' It is labeled as 'For Official use only.' Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/a-photograph-showing-a-multiplex-printing-telegraph-at-the-school-of-radio-and-multiplex-telegraphy-in-new-york-during-world-war-one-this-image-was-taken-by-photographer-reco-on-march-27-1919-with-the-assigned-subject-number-58909-the-photograph-is-marked-with-the-issued-number-m-au-it-is-labeled-as-for-official-use-only-image558336319.htmlRM2RCABJR–A photograph showing a multiplex printing telegraph at the School of Radio and Multiplex Telegraphy in New York during World War One. This image was taken by photographer RECO on March 27, 1919, with the assigned subject number 58909. The photograph is marked with the issued number 'M AU.' It is labeled as 'For Official use only.'
Field work being conducted by the S. C. School of Radio and Multiplex Telegraphy, College of the City of New York. The photograph shows individuals operating ground telegraph transmitting and receiving apparatus, specifically the T.P.S.-S.C.R.-76 and 727 models. The photo was taken by A.E. Sproul and is part of a collection titled 'Photographs of American Military Activities during World War One.' Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/field-work-being-conducted-by-the-s-c-school-of-radio-and-multiplex-telegraphy-college-of-the-city-of-new-york-the-photograph-shows-individuals-operating-ground-telegraph-transmitting-and-receiving-apparatus-specifically-the-tps-scr-76-and-727-models-the-photo-was-taken-by-ae-sproul-and-is-part-of-a-collection-titled-photographs-of-american-military-activities-during-world-war-one-image558565392.htmlRM2RCMRT0–Field work being conducted by the S. C. School of Radio and Multiplex Telegraphy, College of the City of New York. The photograph shows individuals operating ground telegraph transmitting and receiving apparatus, specifically the T.P.S.-S.C.R.-76 and 727 models. The photo was taken by A.E. Sproul and is part of a collection titled 'Photographs of American Military Activities during World War One.'
Image of the electrical laboratory at the Signal Corps School of Radio and Multiplex Telegraphy in New York. The laboratory is equipped with various electrical instruments and apparatus. The photograph is marked for official use only. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/image-of-the-electrical-laboratory-at-the-signal-corps-school-of-radio-and-multiplex-telegraphy-in-new-york-the-laboratory-is-equipped-with-various-electrical-instruments-and-apparatus-the-photograph-is-marked-for-official-use-only-image558507050.htmlRM2RCJ5CA–Image of the electrical laboratory at the Signal Corps School of Radio and Multiplex Telegraphy in New York. The laboratory is equipped with various electrical instruments and apparatus. The photograph is marked for official use only.
Interior view of the electrical laboratory at the S.C. School of Radio and Multiplex Telegraphy, located in the College of the City of New York. The photograph was taken in December 1918. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/interior-view-of-the-electrical-laboratory-at-the-sc-school-of-radio-and-multiplex-telegraphy-located-in-the-college-of-the-city-of-new-york-the-photograph-was-taken-in-december-1918-image558517529.htmlRM2RCJJPH–Interior view of the electrical laboratory at the S.C. School of Radio and Multiplex Telegraphy, located in the College of the City of New York. The photograph was taken in December 1918.
Soldiers from the Battalion on a march at the Signal Corps School of Radio and Multiplex Telegraphy in New York. The photograph is labeled as part of the B.A.T.C. 58906 series, and the photographer's name is Reco. The description mentions that the photograph was taken for official use only. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/soldiers-from-the-battalion-on-a-march-at-the-signal-corps-school-of-radio-and-multiplex-telegraphy-in-new-york-the-photograph-is-labeled-as-part-of-the-batc-58906-series-and-the-photographers-name-is-reco-the-description-mentions-that-the-photograph-was-taken-for-official-use-only-image558407515.htmlRM2RCDJDF–Soldiers from the Battalion on a march at the Signal Corps School of Radio and Multiplex Telegraphy in New York. The photograph is labeled as part of the B.A.T.C. 58906 series, and the photographer's name is Reco. The description mentions that the photograph was taken for official use only.
Social England : a record of the progress of the people in religion, laws, learning, arts, industry, commerce, science, literature and manners, from the earliest times to the present day . synchronism ofsonorous vibrations jiropagated by electric currents. The name harmonic telegraph has consequently been given to the system.All these multiplex systems are modifications and extensions ofthe Morse system. Amongst other .systems of telegraphy maybe mentioned Professor Hughess printing telegraph, and the APPLICATIONS OF ELECTRICITY, lS15-lSSo. 787 antoyraphic telegraphs of Clever and Casclli, whi Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/social-england-a-record-of-the-progress-of-the-people-in-religion-laws-learning-arts-industry-commerce-science-literature-and-manners-from-the-earliest-times-to-the-present-day-synchronism-ofsonorous-vibrations-jiropagated-by-electric-currents-the-name-harmonic-telegraph-has-consequently-been-given-to-the-systemall-these-multiplex-systems-are-modifications-and-extensions-ofthe-morse-system-amongst-other-systems-of-telegraphy-maybe-mentioned-professor-hughess-printing-telegraph-and-the-applications-of-electricity-ls15-lsso-787-antoyraphic-telegraphs-of-clever-and-casclli-whi-image339968641.htmlRM2AN2WD5–Social England : a record of the progress of the people in religion, laws, learning, arts, industry, commerce, science, literature and manners, from the earliest times to the present day . synchronism ofsonorous vibrations jiropagated by electric currents. The name harmonic telegraph has consequently been given to the system.All these multiplex systems are modifications and extensions ofthe Morse system. Amongst other .systems of telegraphy maybe mentioned Professor Hughess printing telegraph, and the APPLICATIONS OF ELECTRICITY, lS15-lSSo. 787 antoyraphic telegraphs of Clever and Casclli, whi
A soldier operates a start-stop apparatus at the S.C. School of Radio and Multiplex Telegraphy in the College of the City of New York during World War One. The photograph was taken by A.E. Sproul on January 16, 1920. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/a-soldier-operates-a-start-stop-apparatus-at-the-sc-school-of-radio-and-multiplex-telegraphy-in-the-college-of-the-city-of-new-york-during-world-war-one-the-photograph-was-taken-by-ae-sproul-on-january-16-1920-image558403963.htmlRM2RCDDXK–A soldier operates a start-stop apparatus at the S.C. School of Radio and Multiplex Telegraphy in the College of the City of New York during World War One. The photograph was taken by A.E. Sproul on January 16, 1920.
Mobile mast cell phone mast with blue sky arid Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-mobile-mast-cell-phone-mast-with-blue-sky-arid-125260822.htmlRFH7P3CP–Mobile mast cell phone mast with blue sky arid
Edison : his life and inventions . now had five shops, and with experimenting on thisnew scheme I was pretty busy; at least I did nothave ennui. A very interesting picture of Mr. Edison at this timeis furnished by Mr. Patrick B. Delany, a well-knowninventor in the field of automatic and multiplex teleg-raphy, who at that time was a chief operator of theFranklin Telegraph Company at Philadelphia. Hisremark about Edison that his ingenuity inspiredconfidence, and wavering financiers stiffened up whenit became known that he was to develop the auto-matic is a noteworthy evidence of the manner inwhi Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/edison-his-life-and-inventions-now-had-five-shops-and-with-experimenting-on-thisnew-scheme-i-was-pretty-busy-at-least-i-did-nothave-ennui-a-very-interesting-picture-of-mr-edison-at-this-timeis-furnished-by-mr-patrick-b-delany-a-well-knowninventor-in-the-field-of-automatic-and-multiplex-teleg-raphy-who-at-that-time-was-a-chief-operator-of-thefranklin-telegraph-company-at-philadelphia-hisremark-about-edison-that-his-ingenuity-inspiredconfidence-and-wavering-financiers-stiffened-up-whenit-became-known-that-he-was-to-develop-the-auto-matic-is-a-noteworthy-evidence-of-the-manner-inwhi-image340198190.htmlRM2ANDA7A–Edison : his life and inventions . now had five shops, and with experimenting on thisnew scheme I was pretty busy; at least I did nothave ennui. A very interesting picture of Mr. Edison at this timeis furnished by Mr. Patrick B. Delany, a well-knowninventor in the field of automatic and multiplex teleg-raphy, who at that time was a chief operator of theFranklin Telegraph Company at Philadelphia. Hisremark about Edison that his ingenuity inspiredconfidence, and wavering financiers stiffened up whenit became known that he was to develop the auto-matic is a noteworthy evidence of the manner inwhi
Image of a lecture room at the S.C. School of Radio and Multiplex Telegraphy in the College of the City of New York. The photograph was taken in December 1918 by photographer A.E. Sproul. The room is set up for a lecture, with chairs and tables arranged for students. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/image-of-a-lecture-room-at-the-sc-school-of-radio-and-multiplex-telegraphy-in-the-college-of-the-city-of-new-york-the-photograph-was-taken-in-december-1918-by-photographer-ae-sproul-the-room-is-set-up-for-a-lecture-with-chairs-and-tables-arranged-for-students-image558496770.htmlRM2RCHM96–Image of a lecture room at the S.C. School of Radio and Multiplex Telegraphy in the College of the City of New York. The photograph was taken in December 1918 by photographer A.E. Sproul. The room is set up for a lecture, with chairs and tables arranged for students.
. Baltimore and Ohio employees magazine . elegraph currents and suchcontrol currents as it may be necessary toemploy for the proper operation of the terminal apparatus. An electrical picturewould be unintelligible to any of oursenses. The multiplex telephone which hasbeen offered to the subscriber through theinstallation of multiplex service betweenWashington and Pittsburgh is the resultof long study and many experiments bythe combined engineering staffs of theAmerican Telephone and Telegraph Com-pany and the Western Electric Company.In view of the telephone conditionswhich existed in Washingt Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/baltimore-and-ohio-employees-magazine-elegraph-currents-and-suchcontrol-currents-as-it-may-be-necessary-toemploy-for-the-proper-operation-of-the-terminal-apparatus-an-electrical-picturewould-be-unintelligible-to-any-of-oursenses-the-multiplex-telephone-which-hasbeen-offered-to-the-subscriber-through-theinstallation-of-multiplex-service-betweenwashington-and-pittsburgh-is-the-resultof-long-study-and-many-experiments-bythe-combined-engineering-staffs-of-theamerican-telephone-and-telegraph-com-pany-and-the-western-electric-companyin-view-of-the-telephone-conditionswhich-existed-in-washingt-image371778698.htmlRM2CGRYEJ–. Baltimore and Ohio employees magazine . elegraph currents and suchcontrol currents as it may be necessary toemploy for the proper operation of the terminal apparatus. An electrical picturewould be unintelligible to any of oursenses. The multiplex telephone which hasbeen offered to the subscriber through theinstallation of multiplex service betweenWashington and Pittsburgh is the resultof long study and many experiments bythe combined engineering staffs of theAmerican Telephone and Telegraph Com-pany and the Western Electric Company.In view of the telephone conditionswhich existed in Washingt
US soldiers attend a training session at the S.C. School of Radio and Multiplex Telegraphy in College of the City of New York, December 1918. Multiplex sets are seen in operation in the photograph. The image is numbered 67421 and taken by photographer A.E. Sproul. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/us-soldiers-attend-a-training-session-at-the-sc-school-of-radio-and-multiplex-telegraphy-in-college-of-the-city-of-new-york-december-1918-multiplex-sets-are-seen-in-operation-in-the-photograph-the-image-is-numbered-67421-and-taken-by-photographer-ae-sproul-image558382173.htmlRM2RCCE4D–US soldiers attend a training session at the S.C. School of Radio and Multiplex Telegraphy in College of the City of New York, December 1918. Multiplex sets are seen in operation in the photograph. The image is numbered 67421 and taken by photographer A.E. Sproul.
Electrical laboratory at the Signal Corps School of Radio and Multiplex Telegraphy in New York during World War I. The image was taken on April 27, 1919. The photograph, captured by photographer 58918, shows multiple individuals engaging in electrical work. It was used for official purposes. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/electrical-laboratory-at-the-signal-corps-school-of-radio-and-multiplex-telegraphy-in-new-york-during-world-war-i-the-image-was-taken-on-april-27-1919-the-photograph-captured-by-photographer-58918-shows-multiple-individuals-engaging-in-electrical-work-it-was-used-for-official-purposes-image558404111.htmlRM2RCDE3Y–Electrical laboratory at the Signal Corps School of Radio and Multiplex Telegraphy in New York during World War I. The image was taken on April 27, 1919. The photograph, captured by photographer 58918, shows multiple individuals engaging in electrical work. It was used for official purposes.
. Radio for everybody; being a popular guide to practical radio-phone reception and transmission and to the dot-and-dash reception and transmission of the radio telegraph, for the layman who wants to apply radio for his pleasure and profit without going into the special theories and the intricacies of the art . it has been possible simultaneouslyto transmit several telegraph messages over a single tele-graph circuit. Also, certain attempts have been made todevelop a system of tuned or syntonic multiplex tele-graphy. But it has remained for the man who is atpresent Chief Signal Officer of the U Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/radio-for-everybody-being-a-popular-guide-to-practical-radio-phone-reception-and-transmission-and-to-the-dot-and-dash-reception-and-transmission-of-the-radio-telegraph-for-the-layman-who-wants-to-apply-radio-for-his-pleasure-and-profit-without-going-into-the-special-theories-and-the-intricacies-of-the-art-it-has-been-possible-simultaneouslyto-transmit-several-telegraph-messages-over-a-single-tele-graph-circuit-also-certain-attempts-have-been-made-todevelop-a-system-of-tuned-or-syntonic-multiplex-tele-graphy-but-it-has-remained-for-the-man-who-is-atpresent-chief-signal-officer-of-the-u-image376019875.htmlRM2CRN557–. Radio for everybody; being a popular guide to practical radio-phone reception and transmission and to the dot-and-dash reception and transmission of the radio telegraph, for the layman who wants to apply radio for his pleasure and profit without going into the special theories and the intricacies of the art . it has been possible simultaneouslyto transmit several telegraph messages over a single tele-graph circuit. Also, certain attempts have been made todevelop a system of tuned or syntonic multiplex tele-graphy. But it has remained for the man who is atpresent Chief Signal Officer of the U
Mess hall at the Signal Corps School of Radio and Multiplex Telegraphy in New York during World War I. The photograph, labeled SATC 58921, was taken on April 27, 1919. It shows a section of the mess hall, which was part of the training facilities for the Signal Corps. This image is marked 'For Official Use Only.' Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/mess-hall-at-the-signal-corps-school-of-radio-and-multiplex-telegraphy-in-new-york-during-world-war-i-the-photograph-labeled-satc-58921-was-taken-on-april-27-1919-it-shows-a-section-of-the-mess-hall-which-was-part-of-the-training-facilities-for-the-signal-corps-this-image-is-marked-for-official-use-only-image558336417.htmlRM2RCABP9–Mess hall at the Signal Corps School of Radio and Multiplex Telegraphy in New York during World War I. The photograph, labeled SATC 58921, was taken on April 27, 1919. It shows a section of the mess hall, which was part of the training facilities for the Signal Corps. This image is marked 'For Official Use Only.'
Photograph of a Signal Corps apparatus featuring multiplex machines, numbered 64,491. This equipment is integral to the communication systems used during World War One. Additional information available is the photograph's RECO (record control) description, which indicates its symbol as a Signal Corps apparatus. The photograph's identification number is 064421. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/photograph-of-a-signal-corps-apparatus-featuring-multiplex-machines-numbered-64491-this-equipment-is-integral-to-the-communication-systems-used-during-world-war-one-additional-information-available-is-the-photographs-reco-record-control-description-which-indicates-its-symbol-as-a-signal-corps-apparatus-the-photographs-identification-number-is-064421-image558407195.htmlRM2RCDJ23–Photograph of a Signal Corps apparatus featuring multiplex machines, numbered 64,491. This equipment is integral to the communication systems used during World War One. Additional information available is the photograph's RECO (record control) description, which indicates its symbol as a Signal Corps apparatus. The photograph's identification number is 064421.
Students from the S.C. School of Radio and Multiplex Telegraphy, part of the College of the City of New York, engage in field work for ground telegraphy. The photograph, taken in December 1918 by photographer A.E. Sproul, shows trainees learning and practicing their skills in New York City. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/students-from-the-sc-school-of-radio-and-multiplex-telegraphy-part-of-the-college-of-the-city-of-new-york-engage-in-field-work-for-ground-telegraphy-the-photograph-taken-in-december-1918-by-photographer-ae-sproul-shows-trainees-learning-and-practicing-their-skills-in-new-york-city-image558567760.htmlRM2RCMXTG–Students from the S.C. School of Radio and Multiplex Telegraphy, part of the College of the City of New York, engage in field work for ground telegraphy. The photograph, taken in December 1918 by photographer A.E. Sproul, shows trainees learning and practicing their skills in New York City.
. Multiplex combinations for economic telegraphy and telephony . Station*** be transmitted on toStation #3 through Station#3, it would be necessarythat this be done with To Quadruplex Apparatus. to j i , some form of repeater. Due lo Quadruple*. Apparatus. to the difficulty in keep-. ing repeaters in correctworking order for all con-ditions of weather andirregular conditions of thephysicals between average telephone exchanges, repeating messagesis resorted to only on a small scale. In case a telegraph circuit is to be operated through severalcities over the telephone lines,it is generally done Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/multiplex-combinations-for-economic-telegraphy-and-telephony-station-be-transmitted-on-tostation-3-through-station3-it-would-be-necessarythat-this-be-done-with-to-quadruplex-apparatus-to-j-i-some-form-of-repeater-due-lo-quadruple-apparatus-to-the-difficulty-in-keep-ing-repeaters-in-correctworking-order-for-all-con-ditions-of-weather-andirregular-conditions-of-thephysicals-between-average-telephone-exchanges-repeating-messagesis-resorted-to-only-on-a-small-scale-in-case-a-telegraph-circuit-is-to-be-operated-through-severalcities-over-the-telephone-linesit-is-generally-done-image376126794.htmlRM2CRX1FP–. Multiplex combinations for economic telegraphy and telephony . Station*** be transmitted on toStation #3 through Station#3, it would be necessarythat this be done with To Quadruplex Apparatus. to j i , some form of repeater. Due lo Quadruple*. Apparatus. to the difficulty in keep-. ing repeaters in correctworking order for all con-ditions of weather andirregular conditions of thephysicals between average telephone exchanges, repeating messagesis resorted to only on a small scale. In case a telegraph circuit is to be operated through severalcities over the telephone lines,it is generally done
. Multiplex combinations for economic telegraphy and telephony . odern Bell testboards are so constructed that a SimplexSystem can readily be made into a Composite System. In case #9 of unexpected crosses or grounds in any of the Bell long dis-tance lines it is essential that some means be provided toquickly put the telephone and telegraph instruments workingbetween stations, as it means a great loss of money to theCompany to have any of their lines disabled. It is not alwayspossible to send a repairman immediately over the line, or it maytake him some time to find the trouble. The telegraph c Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/multiplex-combinations-for-economic-telegraphy-and-telephony-odern-bell-testboards-are-so-constructed-that-a-simplexsystem-can-readily-be-made-into-a-composite-system-in-case-9-of-unexpected-crosses-or-grounds-in-any-of-the-bell-long-dis-tance-lines-it-is-essential-that-some-means-be-provided-toquickly-put-the-telephone-and-telegraph-instruments-workingbetween-stations-as-it-means-a-great-loss-of-money-to-thecompany-to-have-any-of-their-lines-disabled-it-is-not-alwayspossible-to-send-a-repairman-immediately-over-the-line-or-it-maytake-him-some-time-to-find-the-trouble-the-telegraph-c-image376127309.htmlRM2CRX265–. Multiplex combinations for economic telegraphy and telephony . odern Bell testboards are so constructed that a SimplexSystem can readily be made into a Composite System. In case #9 of unexpected crosses or grounds in any of the Bell long dis-tance lines it is essential that some means be provided toquickly put the telephone and telegraph instruments workingbetween stations, as it means a great loss of money to theCompany to have any of their lines disabled. It is not alwayspossible to send a repairman immediately over the line, or it maytake him some time to find the trouble. The telegraph c
. Multiplex combinations for economic telegraphy and telephony . switch M is closed at Station A in theabove circuit and messages are sent to Station A from Bby alternately closing and opening Q,, a pulsating currentis sent over the line and the relay at MAM is correspondinglyenergized and de-energized. This line is therefore carryinga pulsating direct current, but no alternating current. Since the telephone and telegraph lines are carryingcurrents which are vibratory in value, they are thus capableof producing inductive e.m.f. sn in helical coils, whichmight be connected in series in the resp Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/multiplex-combinations-for-economic-telegraphy-and-telephony-switch-m-is-closed-at-station-a-in-theabove-circuit-and-messages-are-sent-to-station-a-from-bby-alternately-closing-and-opening-q-a-pulsating-currentis-sent-over-the-line-and-the-relay-at-mam-is-correspondinglyenergized-and-de-energized-this-line-is-therefore-carryinga-pulsating-direct-current-but-no-alternating-current-since-the-telephone-and-telegraph-lines-are-carryingcurrents-which-are-vibratory-in-value-they-are-thus-capableof-producing-inductive-emf-sn-in-helical-coils-whichmight-be-connected-in-series-in-the-resp-image376127315.htmlRM2CRX26B–. Multiplex combinations for economic telegraphy and telephony . switch M is closed at Station A in theabove circuit and messages are sent to Station A from Bby alternately closing and opening Q,, a pulsating currentis sent over the line and the relay at MAM is correspondinglyenergized and de-energized. This line is therefore carryinga pulsating direct current, but no alternating current. Since the telephone and telegraph lines are carryingcurrents which are vibratory in value, they are thus capableof producing inductive e.m.f. sn in helical coils, whichmight be connected in series in the resp
![. The Bell System technical journal . SENDING I OCZDGZiGZlCZDDZlCZDIIZXZDCZIICIDCIIlCZI]! RECEIVING cot. Fig. 3 which was of inestimable importance in the successful application and operation of printing telegraph methods to submarine cables. The multiplex system provides for associating the line at the sending 3 J. H. Bell, loc. cit.27 408 BELL SYSTEM TECHNICAL JOURNAL end with each one of a number of transmitters in rotation by means ofa rotating brush which passes over a segmented commutator to whichthe transmitters are connected as illustrated in Fig. 3. In this figurethe commutator segmen Stock Photo](https://c8.alamy.com/comp/2CNC936/the-bell-system-technical-journal-sending-i-oczdgzigzlczddzlczdiizxzdcziicidciilczi-!-receiving-cot-fig-3-which-was-of-inestimable-importance-in-the-successful-application-and-operation-of-printing-telegraph-methods-to-submarine-cables-the-multiplex-system-provides-for-associating-the-line-at-the-sending-3-j-h-bell-loc-cit27-408-bell-system-technical-journal-end-with-each-one-of-a-number-of-transmitters-in-rotation-by-means-ofa-rotating-brush-which-passes-over-a-segmented-commutator-to-whichthe-transmitters-are-connected-as-illustrated-in-fig-3-in-this-figurethe-commutator-segmen-2CNC936.jpg ". The Bell System technical journal . SENDING I OCZDGZiGZlCZDDZlCZDIIZXZDCZIICIDCIIlCZI]! RECEIVING cot. Fig. 3 which was of inestimable importance in the successful application and operation of printing telegraph methods to submarine cables. The multiplex system provides for associating the line at the sending 3 J. H. Bell, loc. cit.27 408 BELL SYSTEM TECHNICAL JOURNAL end with each one of a number of transmitters in rotation by means ofa rotating brush which passes over a segmented commutator to whichthe transmitters are connected as illustrated in Fig. 3. In this figurethe commutator segmen Stock Photo")
. The Bell System technical journal . SENDING I OCZDGZiGZlCZDDZlCZDIIZXZDCZIICIDCIIlCZI]! RECEIVING cot. Fig. 3 which was of inestimable importance in the successful application and operation of printing telegraph methods to submarine cables. The multiplex system provides for associating the line at the sending 3 J. H. Bell, loc. cit.27 408 BELL SYSTEM TECHNICAL JOURNAL end with each one of a number of transmitters in rotation by means ofa rotating brush which passes over a segmented commutator to whichthe transmitters are connected as illustrated in Fig. 3. In this figurethe commutator segmen Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/the-bell-system-technical-journal-sending-i-oczdgzigzlczddzlczdiizxzdcziicidciilczi-!-receiving-cot-fig-3-which-was-of-inestimable-importance-in-the-successful-application-and-operation-of-printing-telegraph-methods-to-submarine-cables-the-multiplex-system-provides-for-associating-the-line-at-the-sending-3-j-h-bell-loc-cit27-408-bell-system-technical-journal-end-with-each-one-of-a-number-of-transmitters-in-rotation-by-means-ofa-rotating-brush-which-passes-over-a-segmented-commutator-to-whichthe-transmitters-are-connected-as-illustrated-in-fig-3-in-this-figurethe-commutator-segmen-image374596074.htmlRM2CNC936–. The Bell System technical journal . SENDING I OCZDGZiGZlCZDDZlCZDIIZXZDCZIICIDCIIlCZI]! RECEIVING cot. Fig. 3 which was of inestimable importance in the successful application and operation of printing telegraph methods to submarine cables. The multiplex system provides for associating the line at the sending 3 J. H. Bell, loc. cit.27 408 BELL SYSTEM TECHNICAL JOURNAL end with each one of a number of transmitters in rotation by means ofa rotating brush which passes over a segmented commutator to whichthe transmitters are connected as illustrated in Fig. 3. In this figurethe commutator segmen
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