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Telautograph
The telautograph is an analog precursor to the modern fax machine. It transmits electrical impulses recorded by potentiometers at the sending station to servomechanisms attached to a pen at the receiving station, thus reproducing at the receiving station a drawing or signature made by the sender. It was the first such device to transmit drawings to a stationary sheet of paper; previous inventions in Europe had used rotating drums to make such transmissions. Invention The telautograph's invention is attributed to Elisha Gray, who patented it on July 31, 1888. Gray's patent stated that the telautograph would allow "one to transmit his own handwriting to a distant point over a two-wire circuit." It was the first facsimile machine in which the stylus was controlled by horizontal and vertical bars. The telautograph was first publicly exhibited at the 1893 World's Columbian Exposition held in Chicago. While the patent schema's geometry implies vertical and horizontal coordinat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elisha Gray
Elisha Gray (August 2, 1835 – January 21, 1901) was an American electrical engineer who co-founded the Western Electric Manufacturing Company. Gray is best known for his development of a telephone prototype in 1876 in Highland Park, Illinois. Some recent authors have argued that Gray should be considered the true inventor of the telephone because Alexander Graham Bell allegedly stole the idea of the liquid transmitter from him. Although Gray had been using liquid transmitters in his telephone experiments for more than two years previously, Bell's telephone patent was upheld in numerous court decisions. Gray is also considered to be the father of the modern music synthesizer, and was granted over 70 patents for his inventions. He was one of the founders of Graybar, purchasing a controlling interest in the company shortly after its inception. Biography and early inventions Gray was born in Barnesville, Ohio, the son of Christiana (Edgerton) and David Gray. His family ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Servomechanism
In control engineering a servomechanism, usually shortened to servo, is an automatic device that uses error-sensing negative feedback to correct the action of a mechanism. On displacement-controlled applications, it usually includes a built-in encoder or other position feedback mechanism to ensure the output is achieving the desired effect. The term correctly applies only to systems where the feedback or error-correction signals help control mechanical position, speed, attitude or any other measurable variables. For example, an automotive power window control is not a servomechanism, as there is no automatic feedback that controls position—the operator does this by observation. By contrast a car's cruise control uses closed-loop feedback, which classifies it as a servomechanism. Applications Position control A common type of servo provides ''position control''. Commonly, servos are electric, hydraulic, or pneumatic. They operate on the principle of negative feedback ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LongPen
The LongPen is a remote signing device conceived of by writer Margaret Atwood in 2004 and debuted in 2006. It allows a person to remotely write in ink anywhere in the world via tablet PC and the Internet and a robotic hand. It also supports an audio and video conversation between the endpoints, such as a fan and author, while a book is being signed. The system was used by Conrad Black, who was under arrest, to "attend" a book signing event without leaving his home. See also *List of Canadian inventions and discoveries *Interactive whiteboard *Polygraph (duplicating device) *Autopen *Telautograph The telautograph is an analog precursor to the modern fax machine. It transmits electrical impulses recorded by potentiometers at the sending station to servomechanisms attached to a pen at the receiving station, thus reproducing at the receivin ..., another remote signing device, patented by Elisha Gray in 1888 References Pointing-device text input Computing output devices Mar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triangle Shirtwaist Factory Fire
The Triangle Shirtwaist Factory fire in the Greenwich Village neighborhood of Manhattan, New York City, on Saturday, March 25, 1911, was the deadliest industrial disaster in the history of the city, and one of the deadliest in U.S. history. The fire caused the deaths of 146 garment workers – 123 women and girls and 23 men – who died from the fire, smoke inhalation, or falling or jumping to their deaths. Most of the victims were recent Italian or Jewish immigrant women and girls aged 14 to 23; of the victims whose ages are known, the oldest victim was 43-year-old Providenza Panno, and the youngest were 14-year-olds Kate Leone and Rosaria "Sara" Maltese. The factory was located on the 8th, 9th, and 10th floors of the Asch Building, which had been built in 1901. Later renamed the " Brown Building", it still stands at 23–29 Washington Place near Washington Square Park, on the New York University (NYU) campus. The building has been designated a National Historic Landmark and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Office Equipment
Office supplies are consumables and equipment regularly used in offices by businesses and other organizations, by individuals engaged in written communications, recordkeeping or bookkeeping, janitorial and cleaning, and for storage of supplies or data. The range of items classified as office supplies varies, and typically includes small, expendable, daily use items, consumable products, small machines, higher cost equipment such as computers, as well as office furniture and art. Typical products Office supplies are typically divided by type of product and general use. Some of the many different office supply products include *Blank sheet paper: various sizes from small notes to letter and poster-size; various thicknesses from tissue paper to 120 pound; construction paper; photocopier and inkjet printer paper; *Preprinted forms: time cards, tax reporting forms (1099, W-2), "while you were out" pads, desk and wall calendars; *Label and adhesive paper: name tags, file folder l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telecommunications Equipment
Telecommunications equipment (also telecoms equipment or communications equipment) are hardware which are used for the purposes of telecommunications. Since the 1990s the boundary between telecoms equipment and IT hardware has become blurred as a result of the growth of the internet and its increasing role in the transfer of telecoms data. Types Telecommunications equipment can be broadly broken down into the following categories: *Public switching equipment **Analogue switches **Digital switches *** Voice over IP switches *** Virtual reality (VR) *Transmission equipment ** Transmission lines ***Optical fiber *** Local loops ** Base transceiver stations **Free-space optical communication *** Laser communication in space ** Multiplexers ** Communications satellites *Customer premises equipment (CPE) **Customer office terminal **Private switches **Local area networks (LANs) **Modems **Mobile phones ** Landline telephones ** Answering machines ** Teleprinters ** Fax machines ** Page ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Inventions ...
The following articles cover the timeline of United States inventions: * Timeline of United States inventions (before 1890), before the turn of the century * Timeline of United States inventions (1890–1945), before World War II * Timeline of United States inventions (1946–1991), for the post-war era * Timeline of United States inventions (after 1991), after the Fall of the Soviet Union {{DEFAULTSORT:Timeline of United States Inventions United States inventions United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TIFF
Tag Image File Format, abbreviated TIFF or TIF, is an image file format for storing raster graphics images, popular among graphic artists, the publishing industry, and photographers. TIFF is widely supported by scanning, faxing, word processing, optical character recognition, image manipulation, desktop publishing, and page-layout applications. The format was created by the Aldus Corporation for use in desktop publishing. It published the latest version 6.0 in 1992, subsequently updated with an Adobe Systems copyright after the latter acquired Aldus in 1994. Several Aldus or Adobe technical notes have been published with minor extensions to the format, and several specifications have been based on TIFF 6.0, including TIFF/EP (ISO 12234-2), TIFF/IT (ISO 12639), TIFF-F (RFC 2306) and TIFF-FX (RFC 3949). History TIFF was created as an attempt to get desktop scanner vendors of the mid-1980s to agree on a common scanned image file format, in place of a multitude of proprietary ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xerox
Xerox Holdings Corporation (; also known simply as Xerox) is an American corporation that sells print and digital document products and services in more than 160 countries. Xerox is headquartered in Norwalk, Connecticut (having moved from Stamford, Connecticut, in October 2007), though it is incorporated in New York with its largest population of employees based around Rochester, New York, the area in which the company was founded. The company purchased Affiliated Computer Services for $6.4 billion in early 2010. As a large developed company, it is consistently placed in the list of Fortune 500 companies. On December 31, 2016, Xerox separated its business process service operations, essentially those operations acquired with the purchase of Affiliated Computer Services, into a new publicly traded company, Conduent. Xerox focuses on its document technology and document outsourcing business, and traded on the NYSE from 1961 to 2021, and the Nasdaq since 2021. Researchers a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Danka Industries
Danka may refer to: *A family affiliated with a Buddhist temple in Japan, or '' danka''. People with the given name *Danka Barteková (born 1984), Slovak skeet shooter *Danka Kovinić (born 1994), Montenegrin professional tennis player *Danka Podovac (born 1982), Serbian football player People with the surname *Imre Danka (1930–2014), Hungarian footballer See also * Danke (other) *Donka (other) Donka may refer to the following: *Donka (name) Donka is a feminine Bulgarian given name that is a diminutive form of the masculine name Andon used in Bulgaria. It is also a Polish feminine given name that is a diminutive form of Donata used in P ... {{disambiguation, given name, surname Slavic feminine given names Serbian feminine given names ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sinner Take All
''Sinner Take All'' is a 1936 murder mystery film directed by Errol Taggart and starring Bruce Cabot and Margaret Lindsay. Plot When millionaire New York City businessman Aaron Lampier ( Charley Grapewin) receives a death threat in the mail, he sends for his offspring. Ernie Hyams (Bruce Cabot), a newspaper reporter turned lawyer, is dispatched by MacKelvey ( Stanley Ridges), his former editor, to track down Lampier's daughter Lorraine (Margaret Lindsay). She does not appreciate being dragged away from the nightclub/casino of Frank Penny ( Joseph Calleia). She and her perpetually drunk brother Stephen ( George Lynn) have also received similar mail. When their brother David is killed in a car crash that night, Ernie soon discovers it was not an accident; a wire cable strung across the road was used to cause it. Ernie is pressured into investigating. Lampier's will leaves everything equally to his children. If they predecease him, the estate goes to various charities. Stephen is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
