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Patent Drawing of Engine - Collection of United States patents granted to Thomas A. Edison, 1869-1884 (1869) (14756770945) Public domain  image

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Patent Drawing of Engine - Collection of United States patents granted to Thomas A. Edison, 1869-1884 (1869) (14756770945) Public domain image

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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:
nc-tions when their use in this connection is nolonger needed. This central or extra rail shouldbe thoroughly insulated from the other rails. 60What I claim is— 1. The combination of a series of insulatedwheels and commutator-brushes upon differ-ent cars, and circuit-connections through allupon each side of the train respectively to the 6;jcommutator or commutator-brushes of the en-gine or motor, substantially as set forth. 2. The combination of an extra common orordinary rail insulated from the others, elec-trically connected in sections to form one ter- 70minal or pole of the source of electricity, andthe ordinary or traffic rails, one or both con-nected in sections to form the other terminalor pole of the source of electricity, substan-tially as set forth. 75 This specification sigued and witnessed this .14th day of August, 1880. THOS. A. EDISON. Witnesses: Wi, Carman,Otto A. Moses. (No Model.) T. A. EDISON. DYNAMO OR MAGNETO ELECTRIC MACHINE. No. 263,133. Patented Aug. 22, 1882.
Text Appearing After Image:
United States Patent Office. THOMAS A. EDISON, OE MENLO PARK, NEW JERSEY, ASSIGNOR TO THEEDISON ELECTRIC LIGHT COMPANY, OF NEW YORK, N. Y. DYNAMO OR MAGNETO ELECTRIC MACHINE. SPECIFICATION forming part of Letters Patent No. 263.133, dated August 22, 1882. Application filed November 11,1881. (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 invented a new and5 useful Improvement in Dynamo or MagnetoElectric Machines, (Case No. 34G;) and I do I hereby declare that the following- is a full ; and exact description- of the same, referencebeing had to the accompanying drawings, and do to the letters of reference marked thereon. The object I have in view is to producemeans for cooling the armature of a dynamoor magneto electric machine.In carrying out my invention I close the a 5 spaces between the polar extensions of the ex-citing magnet or magnets at the sides of the I armature by means of bra

Thomas Alva Edison (February 11, 1847 – October 18, 1931) was an American inventor and businessman who is best known for his work in the field of electricity. He developed many devices that greatly influenced life around the world, including the phonograph, the motion picture camera, and the long-lasting, practical electric light bulb. Dubbed "The Wizard of Menlo Park", he was one of the first inventors to apply the principles of mass production and large-scale teamwork to the process of invention, and because of that, he is often credited with the creation of the first industrial research laboratory. He is credited with the development of many important devices and technologies, including the light bulb, the phonograph, and the motion picture camera. Edison was a highly successful and influential inventor, with more than 1,000 patents to his name. He was also a pioneering entrepreneur, founding companies such as General Electric and the Edison Electric Light Company. "Many of life's failures are people who did not realize how close they were to success when they gave up."

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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collection of united states patents granted to thomas a edison 1869 1884
collection of united states patents granted to thomas a edison 1869 1884