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Резюме
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:
ved by the 30motor, but connected so as to turn with suchpart, and mechanism for controlling the longi-tudinal movement of such rod, substantiallyas set forth. 3. In an electric-arc light, the combination 35of the carbon-holding rod, two magnets, an ar-mature-lever playing between the magnets, andtwo pawls provided with lever-arms, pivotedupon the lever, one on either side of the car-bon-holding rod, and holding or releasing the 40carbon-holding rod as the armature is attractedby one or the other of the two magnets forgoverning the feed of the carbon, substantially as set forth. 4. In an electric-arc light, the combination, 45with the rod D, of the armature-lever G-, con-trolled by magnets H I,and carrying pawls 1%,having arms Im, and the strips n 0, substan-tially as set forth. This specification signed and witnessed this 5027th day of May, 188L. TIIOS. A. ED I SOX. Witnesses: Wm. H. Meadoworoft,H. W. Seely. (No Model.) T. A. EDISON: ELECTRIC LAMP. No. 251,539. Patented Dee. 27,1881.
Text Appearing After Image:
United States Patent Office. THOMAS A. EDISON, OF MENLO PARK, NEW JERSEY, ASSIGNOR TO THEEDISON ELECTRIC LIGHT COMPANY, OF NEW YORK, N. Y. ELECTRIC LAMP. SPECIFICATION forming part of Letters Patent No. 251,539, dated December 27, 1881.Application filed May 27,1881. (No model.) To all whom it may concern: Be it known that I, Thomas A. Edison, ofMenlo Park, in the county of Middlesex andState of New Jersey,have iuvented a new and5 useful Improvement in Electric Limps; andI do hereby declare that the following is a fulland exact description of the same, referencebeing had to the accompanying drawings, anilto the letters of reference marked thereon. io It is desirable for some purposes or locationsto provide a shorter lamp and one of simplerand cheaper construction than the incandes-cing lamp before produced by me. This I ac-complish by sealiug the leading-iu wires which 15 support the carbon directly in the lower end ofthe bulb, thus making tlje glass portion of thelamp in one piece ins
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.