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

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The various elements the mixture were pumped and then condensed under pressure and high heat. There are three more photographs this area Photograph Album 7. The first was condensing distilling machine used make the phenol resins used make the disc blanks. This created the thick resin, called condensite, which when cooled, could made into blanks. At the bottom the container was valve draw off the hot liquid and a manhole cover attached large bolts was the top.through door the brick room.346 The use brick building material, where cheap pine panelling was used everywhere else the laboratory, significant, perhaps prompted risk fire from experiments undertaken this room. A series wall cabinets are visible photographs taken during this period. These were used store chemicals and were arranged under system that grouped similar types chemicals together. . The mixtures concocted Aylsworth 345 NPS, 'HSR, Physics Laboratory, Building 1,” see also figure 18. vacuum pump was placed nearby. 1910 and 1911 Edison negotiated with Baekeland license his patents while simultaneously attempting circumvent these patents and set up his own production operation.346 There are photographs the interior the brick room and evidence about its use. 102 348 See figure 26. Secrecy was therefore essential. Baekeland was the lead developing these early plastics and had strong patent position. The balance room contained microscopes evaluate crystals developed experiments recording media and to examine the surface disc and cylinder masters. The large cabinet with glass doors which was placed front the partition was moved into the balance room where now stands. publicity was given this project this machine. Six cabinets the east side the chemistry laboratory held chemicals, and three the west side held glassware. The container was sheathed steam jacket heat the mixture and steam pipes were attached. was pressure container which a vacuum could created. Photographs show two experimental tables and one table fitted with drawers within the room (figures and 19). The condensite project was carried out great secrecy, for just few miles away from West Orange, Leo Baekeland was carrying out experiments with the same phenol resins. This machine would have been made the laboratory staff from plans drawn up experimenters—probably Edison, Sam Moore, and Fred Ott—and copied from existing distilling machines and heated mixers. was gone 1906. Two large machines were brought into the laboratory part the disc record project