Koonn and the screw

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KOONN mODULar


KOONN© FEMALE 1 26-01-2017 19:59


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KOONN© MOULD FEMALE 26-01-2017 20:59


KOONN© MALE 1 26-01-2017 18:59


KOONN© MALE 2 26-01-2017 18:59


KOONN© MALE 3 26-01-2017 18:59


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KOONN© MOULD MALE 26-01-2017 20:59


KOONN© FEMALE 7X 26-01-2017 20:59


KOONN© MALE 8X 26-01-2017 20:59


KOONN© MALE & FEMALE 4X 26-01-2017 20:59


KOONN© OPENING 3CM - 7X 26-01-2017 20:59


KOONN© ADAPTER 2X 26-01-2017 20:59


KOONN© SCREW & THREAD 26-01-2017 20:59 KOONN takes things back to the basics – to the simple screw. It’s a basic element that goes into making things and it’s available everywhere. We’ve all had the task of unscrewing something, seeing how it’s put together, and then reassembling it and this memory is what the basis inspiration for the KOONN Modular concept. The screw becomes a part of the structural system. Therefore it is nice to see that the KOONN screw we use, the Whitworth screw and thread, that has a rich History.

A screw is a type of fastener, sometimes similar to a bolt (see Differentiation between bolt and screw below), typically made of metal, and characterized by a helical ridge, known as a male thread (external thread) or just thread. A screw is an inclined plane wrapped around a nail. Some screw threads are designed to mate with a complementary thread, known as a female thread (internal thread), often in the form of a nut or an object that has the internal thread formed into it. Other screw threads are designed to cut a helical groove in a softer material as the screw is inserted.

A screw thread, often shortened to thread, is a helical structure used to convert between rotational and linear movement or force. A screw thread is a ridge wrapped around a cylinder or cone in the form of a helix, with the former being called a straight thread and the latter called a tapered thread. A screw thread is the essential feature of the screw as a simple machine and also as a fastener. The mechanical advantage of a screw thread depends on its lead, which is the linear distance the screw travels in one revolution This characteristic is essential to the vast majority of its uses.


KOONNŠ WHITWORTH 1 26-01-2017 20:59

Sir Joseph Whitworth, 1st Baronet (21 December 1803 – 22 January 1887) was an English engineer, entrepreneur, inventor and philanthropist. In 1841, he devised the British Standard Whitworth system, which created an accepted standard for screw threads. Whitworth also created the Whitworth rifle, often called the "sharpshooter" because of its accuracy and considered one of the earliest examples of a sniper rifle. At his death in 1887, he bequeathed much of his fortune for the people of Manchester, with the Whitworth Art Gallery and Christie Hospital partly funded by Whitworth's money. Whitworth Street and Whitworth Hall in Manchester are named in his honour. Whitworth was created a baronet on 7 October 1869. Whitworth was born in Stockport, Cheshire, the son of Charles Whitworth, a teacher and Congregational minister, and at an early age developed an interest in machinery. He was educated at Idle, near Bradford, West Riding of Yorkshire; his aptitude for mechanics became apparent when he began work for his uncle. After leaving school Whitworth became an indentured apprentice to his uncle, Joseph Hulse, a cotton spinner at Amber Mill, Oakerthorpe in Derbyshire. The plan was that Whitworth would become a partner in the business.


KOONNŠ WHITWORTH 2 26-01-2017 20:59 Whitworth developed great skill as a mechanic while working for Maudslay, developing various precision machine tools and also introducing a box casting scheme for the iron frames of machine tools that simultaneously increased their rigidity and reduced their weight. Whitworth also worked for Holtzapffel & Co (makers of ornamental lathes) and Joseph Clement. While at Clement's workshop he helped with the manufacture of Charles Babbage's calculating machine, the Difference engine. He returned to Openshaw, Manchester, in 1833 to start his own business manufacturing lathes and other machine tools, which became renowned for their high standard of workmanship. In 1850, architect Edward Walters was commissioned to build 'The Firs' for Whitworth. This was a grand mansion at Fallowfield, Manchester, which still stands today, functioning as Chancellors Hotel & Conference Centre. Whitworth received many awards for the excellence of his designs and was financially very successful. In 1850, then a President of the Institution of Mechanical Engineers, he built a house called 'The Firs' in Fallowfield, south Manchester. A strong believer in the value of technical education, Whitworth backed the new Mechanics' Institute in Manchester (later UMIST) and helped found the Manchester School of Design.


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