{"@context":"http://iiif.io/api/presentation/2/context.json","@id":"https://edisondigital.rutgers.edu/iiif/2/D8430F1/manifest","@type":"sc:Manifest","label":"[D8430F1], Test Report, John F Ott, Edison Lamp Co, January 18th, 1884","thumbnail":{"@id":"https://edisondigital.rutgers.edu/files/medium/D8430F1/cu0510.jpg","@type":"dctypes:Image","format":"image/jpeg","width":761,"height":975},"license":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":"Provided by The Thomas A. Edison Papers at Rutgers University","related":{"@id":"https://edisondigital.rutgers.edu/document/D8430F1","format":"text/html"},"seeAlso":{"@id":"https://edisondigital.rutgers.edu/api/items/38905","format":"application/ld+json"},"metadata":[{"label":"Title","value":"[D8430F1], Test Report, John F Ott, Edison Lamp Co, January 18th, 1884"},{"label":"Editor's Notes","value":"Exhausted 6 lamps with zinc on cent pole and found it would not cary until we obatined quite a good vacuum, then the carrying went on quite fast, so much so that I had to brake the current and seal off in order to get a test. This must droped[?] the vacuum somewhat, but we burnt them at about 6 or 8 candle power. We connected them up after the following manner [drawing follows] This lamp was very slightly coated with zinc it gave the following deflection [results follow] This lamp became quite thickly coated [more results] This lamp was very thickly coated when started and after burning 3 hours it began to peal off in line with carbon [results] cut out all the resistance and the candle power went up to about 80 and it lasted 20 minutes then arced [more results then more discussion of experiment with lamp] Connected a lamp with aluminum in center. This I could not melt on pump and showed no blue after the air was all worked out [results follow] Connected 3 lamp with iron in center [results of each lamp follow]"},{"label":"Author","value":["Edison Lamp Co","Ott, John F"]},{"label":"Date","value":"1884-01-18"},{"label":"Type","value":"Test Report"},{"label":"Subject","value":["Testing and quality control","Incandescent lamp"]},{"label":"Folder/Volume ID","value":"D8430-F"},{"label":"Microfilm ID","value":"73:504"},{"label":"Document ID","value":"D8430F1"},{"label":"URL","value":"https://edisondigital.rutgers.edu/document/D8430F1"},{"label":"Rights","value":"Thomas Edison National Historical Park"},{"label":"Publisher","value":"Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University"},{"label":"Timestamp","value":"18 January 1884"},{"label":"Has Version","value":"Archive.org Viewer, Microfilm Series Reel 73"}],"sequences":[{"@id":"https://edisondigital.rutgers.edu/iiif/2/D8430F1/sequence/normal","@type":"sc:Sequence","label":"Current Page 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