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Summary
Identifier: CollectionUniteVol2Edis (find matches)
Title: Collection of United States patents granted to Thomas A. Edison, 1869-1884
Year: 1869 (1860s)
Authors: Edison, Thomas A. (Thomas Alva), 1847-1931 Peters, N. (Norris), lithographer Hammer, William Joseph, 1858-1934, former owner. DSI Edison, Thomas A. (Thomas Alva), 1847-1931, inscriber. DSI United States. Patent Office
Subjects: Catalogs Patents Edison, Thomas A. (Thomas Alva), 1847-1931 Inventions Telegraph Electric machinery Electric apparatus and appliances Phonograph Telephone Motors Catalogs Patents Catalogs Patents Catalogs
Publisher: Washington, D.C. : U.S. Patent Office
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries
Text Appearing Before Image:
of the bob-bin being connected to the case L or to the wireconnected to the switch 2. When the lamp isturned off the lever Q is in contact with n and 40the resistance R is in circuit; but when 11 islowered until the lever Q comes into contactwith x the lamp is thrown in circuit and theregulating-rod g allows more or less intimatecontact between n and Q. 45 I will mention that the case L is not necessa-rily metallic, as it may be of lime or zircon. I claim as my invention— 1. The lamp consisting of a pyroinsulatedcoiled wire, in combination with a surrounding 5Pcase that is rendered incandescent by the ra-diated heat, substantially as set forth. 2. The combination, with the electric lamp,of the thermal regulator, a resistance, and anadjusting device, n, arranged and operating 55substantially as set forth. Signed by me this 28th day of January, A.D. 1879. THOMAS A. EDISON. Witnesses: Stockton L. Griffin,J. N. Mackenzie. No. 227,229. T. A. EDISON.Electric-Lights. Patented May 4, 1880.
Text Appearing After Image:
N.iPETERS, PHOTO-LITHOGRAPHER, WASHINGTON, D. C. United States Patent Office. THOMAS A. EDISON, OF MENLO PAEK, JSTEW JERSEY.ELECTRIC LIGHT. SPECIFICATION forming part of Letters Patent No. 227,229, dated May 4, 1880. Application filed April 21, 1370. To all whom it may concern: Be it known that I, Thomas A. Edison, ofMenlo Park, in the State of New Jersey, haveinvented an Improvement in Electric Lights,5 (Case iTo. 176,) of which the folio wing is a speci-fication. When platina and other metals that fuse ata high temperature are exposed to high heatand then cooled in the atmosphere they are10 injured, so that they are. not well adapted touse in electric lights for a long period of time. I inclose the conductor that forms the elec-tric candle in a transparent case and heat thesame gradually to expel any gases from the15 material of the candle. I form a vacuum inthe transparent case and then seal the samehermetically, so that all injurious atmosphericinfluences are avoided. The inventio
Thomas Edison, 1847-1931, is credited with the development of many important inventions and technologies. Some of his most notable patents and inventions include: - The light bulb: Edison's most famous invention, the light bulb, revolutionized the way we light our homes and businesses. He worked for many years to perfect the design of the light bulb, and his efforts ultimately led to the development of a practical, long-lasting, and commercially viable electric light. - The phonograph: Edison's phonograph was the first device to successfully record and reproduce sound. The phonograph used a cylinder coated with a substance that could be etched by sound waves to record audio, and a needle to play it back. This invention paved the way for the development of the modern record player and other audio recording and playback technologies. - The motion picture camera: Edison's motion picture camera, also known as the kinetograph, was the first device to successfully capture moving images on film. The kinetograph used a series of rapidly rotating lenses to record a series of still images, which could then be played back in rapid succession to create the illusion of motion. This invention laid the foundation for the modern film industry. - The electric pen: Edison's electric pen was an early precursor to the modern-day tattoo machine. The device used a needle that was rapidly vibrated by an electric motor to create a series of punctures in a sheet of paper. This allowed users to easily create multiple copies of a document using a technique known as stenciling. - The electric vote recorder: Edison's electric vote recorder was an early voting machine that was designed to automate the process of tallying and recording votes in elections. The device used a series of levers that could be activated by voters to indicate their choices, and a mechanism to tally the results and display them on a dial. This invention was intended to improve the accuracy and efficiency of the electoral process.
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