Jacquard looms - ορισμός. Τι είναι το Jacquard looms
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Τι (ποιος) είναι Jacquard looms - ορισμός

WEAVING LOOM CONTROLLED BY PUNCHED CARDS
Jacquard weaving; Jacquard Loom; Jacquard head; Bolus hook; Jaccard loom; Jacquard mechanism; Jacquard woven; Weaving machines; Weaving machine; Jacquard knit; Jacquard designing; Weaving Machinery; Jaquard loom; Jacquard looms; Jacquard loom; Jacquard weave
  • A Jacquard loom showing information punchcards, National Museum of Scotland
  • Jacquard]] was woven in [[silk]] on a Jacquard loom and required 24,000 punched cards to create (1839). It was only produced to order. [[Charles Babbage]] owned one of these portraits; it inspired him in using perforated cards in his [[Analytical Engine]].<ref>Hyman, Anthony, ed. ''Science and Reform: Selected Works of Charles Babbage'', Cambridge, England: Cambridge University Press, 1989, p. 298.</ref> It is in the collection of the Science Museum in London, England.<ref name=Delve99>Delve (2007), p. 99.</ref>
  • Punched cards in use in a Jacquard loom.
  • alt= A schematic diagram of the Jacquard system
  • A punch for Jacquard cards
  • 19th century [[Engineering drawing]] of a Jacquard loom.

Jacquard loom         
<history> /zhah-kar'/ A mechanical loom, invented by Joseph-Marie Jacquard in 1801, which used the holes punched in pasteboard punch cards (which see) to control the weaving of patterns in fabric. It was the first machine to use punch cards, although it did no computation based on them. http://history.rochester.edu/steam/hollerith/loom.htm. (1998-10-19)
Jacquard machine         
The Jacquard machine () is a device fitted to a loom that simplifies the process of manufacturing textiles with such complex patterns as brocade, damask and matelassé. The resulting ensemble of the loom and Jacquard machine is then called a Jacquard loom.
Jacquard         
FAMILY NAME
Jacquard (disambiguation)
·adj Pertaining to, or invented by, Jacquard, a French mechanician, who died in 1834.

Βικιπαίδεια

Jacquard machine

The Jacquard machine (French: [ʒakaʁ]) is a device fitted to a loom that simplifies the process of manufacturing textiles with such complex patterns as brocade, damask and matelassé. The resulting ensemble of the loom and Jacquard machine is then called a Jacquard loom. The machine was patented by Joseph Marie Jacquard in 1804, based on earlier inventions by the Frenchmen Basile Bouchon (1725), Jean Baptiste Falcon (1728), and Jacques Vaucanson (1740). The machine was controlled by a "chain of cards"; a number of punched cards laced together into a continuous sequence. Multiple rows of holes were punched on each card, with one complete card corresponding to one row of the design.

Both the Jacquard process and the necessary loom attachment are named after their inventor. This mechanism is probably one of the most important weaving innovations as Jacquard shedding made possible the automatic production of unlimited varieties of complex pattern weaving. The term "Jacquard" is not specific or limited to any particular loom, but rather refers to the added control mechanism that automates the patterning. The process can also be used for patterned knitwear and machine-knitted textiles such as jerseys.

This use of replaceable punched cards to control a sequence of operations is considered an important step in the history of computing hardware, having inspired Charles Babbage's Analytical Engine.