- 57
[Edison, Thomas Alva]
Estimate
10,000 - 20,000 USD
bidding is closed
Description
- "Photometric Diagram of Carbon Loop." Schematic drawing and blueprint for carbon filament test, Menlo Park, New Jersey, March 1880
- pen, ink, linen
Pen and ink drawing on starched drafting linen: (15 7/8 x 12 1/8 in.) signed "Chas. L. Clarke" with manuscript caption. Mild soiling and a few spots; Blueprint: (15 x 11 1/4 in.) previously folded; both framed, matted, and glazed.
Condition
Not examined out of frame. Pen and ink drawing on starched drafting linen: (15 7/8 x 12 1/8 in.) signed "Chas. L. Clarke" with manuscript caption. Mild soiling and a few spots; Blueprint: (15 x 11 1/4 in.) previously folded; both framed, matted, and glazed.
In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Sotheby's is merely a subjective qualified opinion.
NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING CONDITION OF A LOT, ALL LOTS ARE OFFERED AND SOLD "AS IS" IN ACCORDANCE WITH THE CONDITIONS OF SALE PRINTED IN THE CATALOGUE.
In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Sotheby's is merely a subjective qualified opinion.
NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING CONDITION OF A LOT, ALL LOTS ARE OFFERED AND SOLD "AS IS" IN ACCORDANCE WITH THE CONDITIONS OF SALE PRINTED IN THE CATALOGUE.
Catalogue Note
Thomas Edison was a genius in the practical application of scientific principles, and one of the most productive inventors of his time. Among his most important inventions were the carbon Microphone, the Record Player, and the Kinetoscope. His most significant contributions, however, were his development of the first commercially practical incandescent lamp and his design for a complete electrical distribution system for lighting and power, culminating in the installation in 1881 of the world's first central electric-light power plant in New York City.
Edison's first successful test of the light bulb was achieved on 22 October 1879 in his laboratory at Menlo Park, N.J. He filed for a U.S. patent on 4 November for an electric lamp using “a carbon filament or strip coiled and connected … to platina contact wires”, and it was granted two months later. The schematic drawing on offer here comes from Notebook 66, as noted in the inscription, as was executed by Charles L. Clarke, one of Edison's most trusted engineers, and eventually Chief Engineer and first President of the Edison Electric Light Company.
Edison's first successful test of the light bulb was achieved on 22 October 1879 in his laboratory at Menlo Park, N.J. He filed for a U.S. patent on 4 November for an electric lamp using “a carbon filament or strip coiled and connected … to platina contact wires”, and it was granted two months later. The schematic drawing on offer here comes from Notebook 66, as noted in the inscription, as was executed by Charles L. Clarke, one of Edison's most trusted engineers, and eventually Chief Engineer and first President of the Edison Electric Light Company.