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Revere Camera Company
The Revere Camera Company was started in 1920 by Samuel Briskin, who also started Wollensak Recorders and Opticals. History Founded in 1920 in Chicago, Illinois, as the Excel Auto Radiator Company by Ukrainian immigrant Samuel Briskin to manufacture car radiators, but started manufacturing some coarse household products later in the decade. Built for Excel – and designed by Alfred S. Alschuler, the manufacturing facility was located at 320 E. 21st St., Chicago, Illinois. They started making budget 8 mm movie cameras in 1939 through a subsidiary run by Briskin's sons, such as the ''Revere 88 Movie Camera'' and the ''Revere 85'' 8mm Projector. That company was later merged into Excel Auto Radiator Co., which then changed its name to Revere Camera Co. The Revere name is taken from the Revere Copper Company, which provided financial backing for Excel during the depression. In November 1952, Revere purchased the nearby Atwell Building – also designed by Alfred S. Alschule ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Privately Held Company
A privately held company (or simply a private company) is a company whose shares and related rights or obligations are not offered for public subscription or publicly negotiated in the respective listed markets, but rather the company's stock is offered, owned, traded, exchanged privately, or Over-the-counter (finance), over-the-counter. In the case of a closed corporation, there are a relatively small number of shareholders or company members. Related terms are closely-held corporation, unquoted company, and unlisted company. Though less visible than their public company, publicly traded counterparts, private companies have major importance in the world's economy. In 2008, the 441 list of largest private non-governmental companies by revenue, largest private companies in the United States accounted for ($1.8 trillion) in revenues and employed 6.2 million people, according to ''Forbes''. In 2005, using a substantially smaller pool size (22.7%) for comparison, the 339 companies on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chicago
(''City in a Garden''); I Will , image_map = , map_caption = Interactive Map of Chicago , coordinates = , coordinates_footnotes = , subdivision_type = Country , subdivision_name = United States , subdivision_type1 = State , subdivision_type2 = Counties , subdivision_name1 = Illinois , subdivision_name2 = Cook and DuPage , established_title = Settled , established_date = , established_title2 = Incorporated (city) , established_date2 = , founder = Jean Baptiste Point du Sable , government_type = Mayor–council , governing_body = Chicago City Council , leader_title = Mayor , leader_name = Lori Lightfoot ( D) , leader_title1 = City Clerk , leader_name1 = Anna Valencia ( D) , unit_pref = Imperial , area_footnotes = , area_tot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wollensak
Wollensak Optical was an American manufacturer of audio-visual products located in Rochester, New York. At the height of their popularity in the 1950s and 1960s, many brands of movie cameras came with a Wollensak Velostigmat lens. Wollensak reel-to-reel tape recorders were prized for their robust construction and value. In the 1960s, Wollensak was the choice tape recorder for amateur home, school, and office uses. They were produced in both stereo and mono designs. The firm was founded in 1899 by Andrew Wollensak to produce camera shutters. At its peak in the 1950s, it employed over 1000 people. The company had several owners, including Revere Camera Company and 3M Company. Wollensak ceased operation in 1972. Camera equipment Wollensak began making camera lenses in 1902. The company also produced camera shutters for large format cameras. They made shutters such as the Betax, Alphax, Optimo and, for the Graflex Corporation, Rapax. The Betax shutters were patented in 1912 and re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alfred S
Alfred may refer to: Arts and entertainment *''Alfred J. Kwak'', Dutch-German-Japanese anime television series * ''Alfred'' (Arne opera), a 1740 masque by Thomas Arne * ''Alfred'' (Dvořák), an 1870 opera by Antonín Dvořák *"Alfred (Interlude)" and "Alfred (Outro)", songs by Eminem from the 2020 album ''Music to Be Murdered By'' Business and organisations * Alfred, a radio station in Shaftesbury, England *Alfred Music, an American music publisher *Alfred University, New York, U.S. *The Alfred Hospital, a hospital in Melbourne, Australia People * Alfred (name) includes a list of people and fictional characters called Alfred * Alfred the Great (848/49 – 899), or Alfred I, a king of the West Saxons and of the Anglo-Saxons Places Antarctica * Mount Alfred (Antarctica) Australia * Alfredtown, New South Wales * County of Alfred, South Australia Canada * Alfred and Plantagenet, Ontario * Alfred Island, Nunavut * Mount Alfred, British Columbia United States * Alfred, Maine, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chicago, Illinois
(''City in a Garden''); I Will , image_map = , map_caption = Interactive Map of Chicago , coordinates = , coordinates_footnotes = , subdivision_type = Country , subdivision_name = United States , subdivision_type1 = State , subdivision_type2 = Counties , subdivision_name1 = Illinois , subdivision_name2 = Cook and DuPage , established_title = Settled , established_date = , established_title2 = Incorporated (city) , established_date2 = , founder = Jean Baptiste Point du Sable , government_type = Mayor–council , governing_body = Chicago City Council , leader_title = Mayor , leader_name = Lori Lightfoot ( D) , leader_title1 = City Clerk , leader_name1 = Anna Valencia ( D) , unit_pref = Imperial , area_footnotes = , area_tot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
8 Mm Film
8 (eight) is the natural number following 7 and preceding 9. In mathematics 8 is: * a composite number, its proper divisors being , , and . It is twice 4 or four times 2. * a power of two, being 2 (two cubed), and is the first number of the form , being an integer greater than 1. * the first number which is neither prime nor semiprime. * the base of the octal number system, which is mostly used with computers. In octal, one digit represents three bits. In modern computers, a byte is a grouping of eight bits, also called an wikt:octet, octet. * a Fibonacci number, being plus . The next Fibonacci number is . 8 is the only positive Fibonacci number, aside from 1, that is a perfect cube. * the only nonzero perfect power that is one less than another perfect power, by Catalan conjecture, Mihăilescu's Theorem. * the order of the smallest non-abelian group all of whose subgroups are normal. * the dimension of the octonions and is the highest possible dimension of a normed divisio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Revere Copper Company
The Revere Copper Company is a copper rolling mill in the United States. It operated North America's first copper rolling mill. It was started by Paul Revere in 1801 in Canton, Massachusetts, and developed a commercially viable process for manufacturing copper sheets. History Copper rolling process Copper rolling is the process of converting large blocks of copper into thin sheets by rolling them gradually down to size. These sheets of copper were used in the 18th and 19th centuries mainly to plate the bottoms of ships. This process of plating ship bottoms, referred to as “sheathing” or “coppering”, helped increase the speed and lifespan of ships. Copper was desired for this process because it reacts with seawater to create an oxide coating that prevents the build-up of barnacles, weeds, and other detritus, in addition to physically stopping shipworm, shipworms from burrowing into and degrading the wood. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dremel
Dremel ( ) is a multinational brand of power tools, focusing on home improvement and hobby applications. Dremel is known primarily for its rotary tools such as the Dremel 3000, 4000 and 8200 series which are similar to the pneumatic die grinders used in the metalworking industry by tool or moldmakers. Dremel later expanded its product range and now produces butane tools, benchtop and hand-held saws and oscillating tools. The Dremel die grinder tools were originally developed by Albert J. Dremel, an Austrian immigrant who founded the Dremel Company in 1932 in Racine, Wisconsin. The company was purchased by Robert Bosch GmbH in 1993, and today it is a division of the Robert Bosch Tool Corporation located in Mount Prospect, Illinois. History Founded by the Austrian inventor Albert J. Dremel in 1932, the company is located in Racine, Wisconsin, US. Albert J. Dremel held 55 patents across a wide range of inventions, including an electric eraser, electric fish scaler, electric ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Collet
A collet is a segmented sleeve, band or ''collar''. One of the two radial surfaces of a collet is usually tapered (i.e a truncated cone) and the other is cylindrical. The term ''collet'' commonly refers to a type of chuck that uses collets to hold either a workpiece or a tool (such as a drill) but has other mechanical applications. An external collet is a sleeve with a cylindrical inner surface and a conical outer surface. The collet can be squeezed against a matching taper such that its inner surface contracts to a slightly smaller diameter, squeezing the tool or workpiece to hold it securely. Most often the collet is made of spring steel, with one or more kerf cuts along its length to allow it to expand and contract. This type of collet holds the external surface of the tool or workpiece being clamped. This is the most usual type of collet chuck. An external collet clamps against the internal surface or bore of a hollow cylinder. The collet's taper is internal and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
