Vinç Tarihçesi - winch history
5 Eylül 2008 Cuma
Turkish..
İlk vinçler İÖ 5. yy.da vardı, ilk vinç resmi Romalı mimar Vitruvius'un M.Ö. 10 yıllarında yazdığı bir kitapta görülür. Bu vinç tepesinde makara bulunan ve halatlarla sabitlenen bir direkten oluşuyordu. Makaradan geçen başka bir halat yüklere bağlanıyor ve kölelerin çevirdiği ayak değirmeniyle kaldırılıyordu. Daha sonra 15. yüzyılda İtalya'da palangalı vinç adı verilen daha kullanışlı bir vinç tasarlandı. Buhar gücüyle çalışan ilk vinci ise 19. yüzyılda İskoçyalı John Rennie (1761 - 1821) yapmıştır.
English ..
A winch is a mechanical device that is used to pull in (wind up) or let out (wind out) or otherwise adjust the "tension" of a rope or wire rope (also called "cable" or "wire cable"). In its simplest form it consists of a spool and attached hand crank. In larger forms, winches stand at the heart of machines as diverse as tow trucks, steam shovels and elevators. The spool can also be called the winch drum. More elaborate designs have gear assemblies and can be powered by electric, hydraulic, pneumatic or internal combustion drives. Some may include a solenoid brake and/or a mechanical brake or ratchet and pawl device that prevents it from unwinding unless the pawl is retracted.
A winch is a mechanical device that is used to pull in (wind up) or let out (wind out) or otherwise adjust the "tension" of a rope or wire rope (also called "cable" or "wire cable"). In its simplest form it consists of a spool and attached hand crank. In larger forms, winches stand at the heart of machines as diverse as tow trucks, steam shovels and elevators. The spool can also be called the winch drum. More elaborate designs have gear assemblies and can be powered by electric, hydraulic, pneumatic or internal combustion drives. Some may include a solenoid brake and/or a mechanical brake or ratchet and pawl device that prevents it from unwinding unless the pawl is retracted.
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