EDISON LABORATORY Edison National Historic Site West Orange, New Jersey Volume 1

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336 The large open space was filled with experimental tables, machine tools (mainly drill presses and hydraulic presses), and battery testing apparatus.336 (See schematic plan 3. large cabinet with double glass doors and numerous shelves was probably used for this purpose. 334 Photographs 12. 12. nos. 338 NPS, "HSR, Edison NHS, Building 1," 8. This project led the dismantling the line experimental rooms the east side the building. was manufacturing line the new "electric" talking machines with several radio- phonograph combinations. Many instruments stored in Building were later stored the third floor Building prior their removal the Henry Ford Museum Dearborn, Michigan. The brick pier tables were probably taken out 1923/24 during these experiments. Photo no. no. The sorry state Edison’s phonograph business during the late 1920s finally forced him enter the era electrical recording and reproduction.440/71 through 12. 8071, reproduced this report figure 14. the end the decade Thomas Edison, Inc.440/75, neg. The room the west side was used for battery testing and remained equipped for this function during the 1930s. Throughout this period Building remained store room for many electrical measuring instruments and other valuable apparatus related the early days of the West Orange laboratory.337 335 NPS, "HSR, Edison NHS, Building 1," 9. Theodore Edison was charge developing the Western Electric technology and applying it Edison phonographs. 8067-8072 (not reproduced this report), taken September 1939. 337 "Classification Buildings," June 13, 1939, Historical Department Records.338 97 .440/76, neg. The latter occupied long wooden tables which ran along the center of the room (figure 14). This development work was led Theodore Edison and probably took place Building his laboratory the front office (see 40 for more Theodore Edison).) The two rooms the rear of this building were also used this project.automobile use and developing electrical generator and starter