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

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The project find domestic source rubber gained great deal publicity but was not commercial endeavor. This transaction took place May 1930. The impressive list measuring equipment brought the laboratory December 1887 testament the importance electrical experiments Edison and his business empire this time. Three years later agreed sell his West Orange laboratory Thomas A. Edison, Inc.316 Other measuring equipment installed Building included ammeters, voltmeters, manometers, thermometers, photometers, dynometers, and tachometers.this knowledge the amusement phonograph because Edison was firmly opposed to electrical recording. Dickson between 1888 and 1892 provides with a look inside this building (figure 6). least two deadbeat galvanometers are mentioned the notebook lists. Edison for experimental and development work. 318 Dickson and Dickson, The Life and Inventions Thomas Alva Edison, pp, 181-82., May 1930, vol.317 A photograph taken W.316 The latter was galvanometer unique design developed the Edison laboratory. 97. Building Period 1887-1900 Electrical equipment was brought this building from Edison’s temporary laboratory the Edison Lamp Company Harrison, New Jersey."314 3H Minutes the Board Directors, Thomas Edison Inc. 1926 Edison’s son, Charles, became president Thomas Edison, Incorporated. The laboratory was described as "operated Mr. Experimental equipment included radiophone, phosphoroscope, tachograph, and photophome. There workbench and two large storage cabinets the 89 . Edison’s active managerial role decreased the 1920s progressed.L. for the "book value" $165,000 for the land, premises and contents. 317 Notebook N-87-11-9. Its basic function was keep elderly inventor happy and occupied during the last years his life. 315 Notebook N-87-12-19.K. The six brick piers the west side are covered with electrical equipment, including galvanometers. Numerous types galvanometers were installed in this building: universal, tangent, single coil, double coil, sine tangent, single ring, dansonial, gaugain, Siemens sine and couple "deadbeat" galvanometers. Several batteries are placed near and the piers and several sit workbench placed the middle of the line piers