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Rotating Shuttle
The rotary hook (aka rotating hook) is a bobbin driver design used in lockstitch sewing machines of the 19th and 20th century and beyond. It triumphed over competing designs because it can run at higher speeds with less vibration. Rotary hooks and oscillating shuttles are the two most common bobbin drivers in use today. Operation The rotary hook continuously rotates in place, hooking the upper thread each time its pointed tip passes the 12 o'clock position. Enough upper thread is pulled from above to pass around the bobbin case, which sits loosely inside the hook frame such that loops of thread can pass completely over it. The excess thread, no longer needed, is then pulled back upward by the sewing machine's take-up arm. This arrangement is mechanically very simple but also introduces a significant limitation. Since the lower bobbin must pass completely through the upper thread, and the upper thread necessary to complete this passage must be completely withdrawn by the take- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bobbin Driver
Throughout history, lockstitch sewing machines have used a variety of methods to drive their bobbin A bobbin or spool is a spindle or cylinder, with or without flanges, on which yarn, thread, wire, tape or film is wound. Bobbins are typically found in industrial textile machinery, as well as in sewing machines, fishing reels, tape measure ...s so as to create the lockstitch. "Rotating shuttle" The term rotating shuttle is ambiguous. Sometimes it refers to a bobbin case, and sometimes it refers to a rotary hook design.See e.g. (ironically filed by Wheeler & Wilson), or References {{sewing Sewing machines ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lockstitch
A lockstitch is the most common mechanical stitch made by a sewing machine. The term "single needle stitching", often found on dress shirt labels, refers to lockstitch. Structure The lockstitch uses two threads, an upper and a lower. Lockstitch is named because the two threads, upper and lower, "lock" (entwine) together in the hole in the fabric which they pass through. The upper thread runs from a spool kept on a spindle on top of or next to the machine, through a tension mechanism, through the take-up arm, and finally through the hole in the needle. Meanwhile, the lower thread is wound onto a bobbin, which is inserted into a case in the lower section of the machine below the material. To make one stitch, the machine lowers the threaded needle through the cloth into the bobbin area, where a rotating hook (or other hooking mechanism) catches the upper thread at the point just after it goes through the needle. The hook mechanism carries the upper thread entirely around th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sewing Machine
A sewing machine is a machine used to sew fabric and materials together with thread. Sewing machines were invented during the first Industrial Revolution to decrease the amount of manual sewing work performed in clothing companies. Since the invention of the first sewing machine, generally considered to have been the work of Englishman Thomas Saint in 1790, the sewing machine has greatly improved the efficiency and productivity of the clothing industry. Home sewing machines are designed for one person to sew individual items while using a single stitch type at a time. In a modern sewing machine, the process of stitching has been automated so that the fabric easily glides in and out of the machine without the inconvenience of needles, thimbles and other tools used in hand sewing. Early sewing machines were powered by either constantly turning a handle or with a foot-operated treadle mechanism. Electrically-powered machines were later introduced. Industrial sewing machines, by co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lockstitch
A lockstitch is the most common mechanical stitch made by a sewing machine. The term "single needle stitching", often found on dress shirt labels, refers to lockstitch. Structure The lockstitch uses two threads, an upper and a lower. Lockstitch is named because the two threads, upper and lower, "lock" (entwine) together in the hole in the fabric which they pass through. The upper thread runs from a spool kept on a spindle on top of or next to the machine, through a tension mechanism, through the take-up arm, and finally through the hole in the needle. Meanwhile, the lower thread is wound onto a bobbin, which is inserted into a case in the lower section of the machine below the material. To make one stitch, the machine lowers the threaded needle through the cloth into the bobbin area, where a rotating hook (or other hooking mechanism) catches the upper thread at the point just after it goes through the needle. The hook mechanism carries the upper thread entirely around th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allen B
Allen, Allen's or Allens may refer to: Buildings * Allen Arena, an indoor arena at Lipscomb University in Nashville, Tennessee * Allen Center, a skyscraper complex in downtown Houston, Texas * Allen Fieldhouse, an indoor sports arena on the University of Kansas campus in Lawrence * Allen House (other) * Allen Power Plant (other) Businesses *Allen (brand), an American tool company *Allen's, an Australian brand of confectionery * Allens (law firm), an Australian law firm formerly known as Allens Arthur Robinson *Allen's (restaurant), a former hamburger joint and nightclub in Athens, Georgia, United States *Allen & Company LLC, a small, privately held investment bank *Allens of Mayfair, a butcher shop in London from 1830 to 2015 *Allens Boots, a retail store in Austin, Texas * Allens, Inc., a brand of canned vegetables based in Arkansas, US, now owned by Del Monte Foods * Allen's department store, a.k.a. Allen's, George Allen, Inc., Philadelphia, USA People * Allen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nathaniel Wheeler
Nathaniel Wheeler (b. Watertown, Litchfield county., Connecticut, September 7, 1820; d. Bridgeport, December 31. 1893) was an American manufacturer and legislator. The photographs of the Wheeler Mansion on this page are actually photographs of a PT Barnum Mansion that was located at Seaside Park in Bridgeport, CT at the same time period. Family background He was the son of David and Sarah (née De Forest) Wheeler and grandson of Deacon James and Mary (née Clark) Wheeler. The founder of his branch of the family, Moses Wheeler, born in Kent, England, was in New Haven, Conn., as early as 1641, and probably was one of the founders of that town. He removed, in 1648, to Stratford, Connecticut, where he carried on his trade of ship-carpenter. He also farmed, and kept the ferry across the Housatonic. He became an extensive landholder and died in 1698, aged 100 years. Sarah De Forest was descended from a Huguenot family, of Avesnes, France, some of whose members fled to Leyden, Holland ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vibrating Shuttle
A vibrating shuttle is a bobbin driver design used in home lockstitch sewing machines during the second half of the 19th century and the first half of the 20th century. It supplanted earlier ''transverse'' shuttle designs, but was itself supplanted by ''rotating'' shuttle designs. Overview In order to create a lockstitch a sewing machine intertwines two threads: an upper thread (descending with the needle into the workpiece from above) and a lower thread (ascending into the workpiece from the bobbin below). To intertwine them, the machine must pass its shuttle (containing the bobbin and the lower thread) through a loop temporarily created from the upper thread. Early sewing machines of the 19th century oscillate their shuttles back and forth on linear horizontal tracks—an arrangement called a " transverse shuttle". A ''vibrating'' shuttle machine, by contrast, 'vibrates' its shuttle in a circular arc. This movement represents less total mechanical motion, which means less ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scientific American
''Scientific American'', informally abbreviated ''SciAm'' or sometimes ''SA'', is an American popular science magazine. Many famous scientists, including Albert Einstein and Nikola Tesla, have contributed articles to it. In print since 1845, it is the oldest continuously published magazine in the United States. ''Scientific American'' is owned by Springer Nature, which in turn is a subsidiary of Holtzbrinck Publishing Group. History ''Scientific American'' was founded by inventor and publisher Rufus Porter (painter), Rufus Porter in 1845 as a four-page weekly newspaper. The first issue of the large format newspaper was released August 28, 1845. Throughout its early years, much emphasis was placed on reports of what was going on at the United States Patent and Trademark Office, U.S. Patent Office. It also reported on a broad range of inventions including perpetual motion machines, an 1860 device for buoying vessels by Abraham Lincoln, and the universal joint which now can be found ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elias Howe
Elias Howe Jr. (; July 9, 1819October 3, 1867) was an American inventor best known for his creation of the modern lockstitch sewing machine. Early life Elias Howe Jr. was born on July 9, 1819, to Dr. Elias Howe Sr. and Polly (Bemis) Howe in Spencer, Massachusetts. Howe spent his childhood and early adult years in Massachusetts, where he apprenticed in a textile factory in Lowell beginning in 1835. After mill closings due to the Panic of 1837, he moved to Cambridge, Massachusetts, to work as a mechanic with carding machinery, apprenticing along with his cousin Nathaniel P. Banks. In the beginning of 1838, he apprenticed in the shop of Ari Davis, a master mechanic in Cambridge who specialized in the manufacture and repair of chronometers and other precision instruments. It was in the employ of Davis that Howe seized upon the idea of the sewing machine. He married Elizabeth Jennings Ames, daughter of Simon Ames and Jane B. Ames, on March 3, 1841, in Cambridge.Edmund Rice (1638) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patent Thicket
A patent thicket is "an overlapping set of patent rights" which requires innovators to reach licensing deals for multiple patents. This concept is associated with negative connotations and has been described as "a dense web of overlapping intellectual property rights that a company must hack its way through in order to actually commercialize new technology". Origin of the expression The expression may come from ''SCM Corp. v. Xerox Corp.,'' 645 F.2d 1195 (2d Cir. 1981), patent litigation case in the 1970s, wherein Smith Corona, SCM's central charge had been that Xerox constructed a "patent thicket" to prevent Competition (economics), competition. Uses and alternative names Patent thickets are used to defend against competitors design around, designing around a single patent. It has been suggested by some that this is particularly true in fields such as Software patent, software or pharmaceuticals, but Sir Robin Jacob (judge), Robin Jacob has pointed out that "every patentee of a m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White Sewing Machine Company
The White Sewing Machine Company was a sewing machine company founded in 1858 in Templeton, Massachusetts, by Thomas H. White and based in Cleveland, Ohio, since 1866. History Founded as the White Manufacturing Company it took the White Sewing Machine Company name when it was incorporated in 1876. White Sewing Machines won numerous awards at international expositions, including the 1889 Universelle Exposition in Paris. White began supplying sewing machines to Sears Roebuck and Co in the 1920s. By the 1930s, all Sears sewing machines were Whites rebadged as Kenmore, Franklin, Minnesota, and other house brands. A White Rotary Electric Series 77 machine was placed in the Crypt of Civilization.A photo of the machine inside Crypt of Civilization can be seehere White Motor Company In 1900, Thomas White's son, Rollin, developed a steam engine, using a corner of one of his father's factories to start building automobiles. In 1906 the automotive venture was spun off as its o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
