Similar
Related
Patent Drawing of Engine - Collection of United States patents granted to Thomas A. Edison, 1869-1884 (1869) (14569943790) Public domain image
Summary
Identifier: CollectionUnitev1Edis (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:
vennessin the recorded dots and dashes which it isvery hard to obtain on very long circuits. I use an air-condenser, C, so that it will dis-charge instantly, which is not the case withcondeiising-surfaces separated with a non-con-ducting material, the phenomenon of absorp-tion preventing their discharging quickly andreducing the speed. I believe I am the first to discover that anair-condenser applied to a, chemical telegraphwill promote rapidity of operation at the re-ceiving-iustrumei i t. I claim as my invention— 1. The air-condenser inserted in the line atthe receiving-station of a chemical telegraph,for the purposes set forth. 2. In a chemical telegraph, the method speci-fied of forming dashes by transmitting, bymeans of perforated paper, a strong currentfollowed by a weak current, substantially asset forth. Signed by me this 19th day of January, A.D. 1875. TITOS. A. EDISON. Witnesses: Geo. T. Pinckney,Chas. H. Smith. T. A. EDISON,Stencil-Pen. No. 196,747. Patented Nov. 6, 1877.
Text Appearing After Image:
I united States Patent Office, THOMAS A. EDISON, OF MENLO PABK, NEW JEBSEY.IMPROVEMENT IN STENCIL-PENS. Specification forming part of Letters Patent No. 196,iy4l3, dated November 6, 1877; application filed April 23, 1877. To all whom it may concern: Be it known that I, Thomas A. Edison, ofMenlo Park, in the comity of Middlesex andState of New Jersey, have invented an Im-provement in Autographic Pens, of which thefollowing is a specification: My present invention relates to a pen actu-ated by electricity, and adapted to perforatingparjer that is to be used in printing in themanner set forth in Letters Patent No. 180,857,granted to me. I reciprocate the perforating - needle withgreat rapidity by means of a reed or bar vi-brating with great rapidity, and acting toopen and close a circuit to an electro-magnet,that serves to maintain the vibration of thesaid reed or bar; and I employ an adjustableweight to vary the speed of vibration, similarlyto a pendulum. In the drawing, Figure 1 is a s
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.
Tags
Date
Source
Copyright info
