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THERACKIRCUIT[1]y11205>Resolution7777723653INVIONFԅ?;89057>UNITEDTATESЀ0NT(FICEILLIAMOBINSON,BROOKLYhNEWORK.mprovementnlectric-Signalingpparatusorailroadspecifica1myhtfettersatNo. 130,661,䀠dugust 20, 1872.gggggI03175>DR.[2]alndechanzEngineerellowmeAnnstitute1sradu WesleyUnivitythegrees!A.B.A.M.of€o Ph.Dk7520'SECORDROMESLEYANNIVERSITYWWWWWR8847>A.I.E.Ex#ߌ߃3621>eASHBRIDGEALDWI43156ςooooo01934oo(REATITApANNINBy..asces7777702140FULLROJECTUBERG̡NSEmbp:pagebreak/a> NMINDXTAGX 0EIDXTINDXp00 π010203$(04L 05W06jM077n08&p09 0A s0BJĀ0C^ ހ0D g 0E #IDXT ".:FS`The Project Gutenberg eBook of The Invention of the Track Circuit, by American Railway AssociationTHE INVENTION OF THE TRACK CIRCUITPREFACECONTENTSTHE TRACK CIRCUIT[1]ResolutionUNITED STATES PATENT OFFICE WILLIAM ROBINSON, OF BROOKLYN, NEW YORK. Improvement in Electric-Signaling Apparatus for Railroads Specifications forming part of Letters Patent No. 130,661, dated August 20, 1872.DR. WILLIAM ROBINSON[2] Electrical and Mechanical Engineer Fellow American Institute of Electrical Engineers Graduate of Wesleyan University with Degrees of A.B. and A.M. Post Graduate of Boston University with Degree of Ph.D.DR. ROBINSON'S RECORD FROM WESLEYAN UNIVERSITYA.I.E.E. RECORD OF DR. WILLIAM ROBINSONWILLIAM ASHBRIDGE BALDWINTHE TRACK CIRCUITTHE TRACK CIRCUIT IN GREAT BRITAIN AND ON THE CONTINENT By T. S. 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