What (who) is lace card - definition
FORM OF MECHANICAL SYSTEM DISRUPTION
IBM Doily; Whoopee card; Ventilator card; Lace punched card; Whoopee punched card; Ventilator punched card; Flyswatter punched card; IBM doily; Flyswatter card
lace card
(Obsolete) A punched card with all holes punched (also
called a "whoopee card" or "ventilator card"). Card readers
tended to jam when they got to one of these, as the resulting
card had too little structural strength to avoid buckling
inside the mechanism. Card punches could also jam trying to
produce these things owing to power-supply problems. When
some practical joker fed a lace card through the reader, you
needed to clear the jam with a "card knife" - which you used
on the joker first.
[Jargon File ]
ventilator card
Bobbin lace
![title=Hall of Ceremonies}}</ref> (by [[Martin van Meytens]], c. 1752)](https://commons.wikimedia.org/wiki/Special:FilePath/Maria Theresia im Spitzenbesetzten Kleid.jpg?width=200 "title=Hall of Ceremonies}}</ref> (by [[Martin van Meytens]], c. 1752)")
![Spangled bobbins]]](https://commons.wikimedia.org/wiki/Special:FilePath/The bobbin of the British type.jpg ?width=200 "Spangled bobbins]]")
 2006-11-04.jpg ?width=200 "Hooded bobbins")
![Large bulbs to throw every now and then, [[Cogne]]](https://commons.wikimedia.org/wiki/Special:FilePath/Dentelles Cogne2.JPG ?width=200 "Large bulbs to throw every now and then, [[Cogne]]")
![by [[Caspar Netscher]] an early pillow with a wooden frame](https://commons.wikimedia.org/wiki/Special:FilePath/Caspar Netscher 003.jpg?width=200 "by [[Caspar Netscher]] an early pillow with a wooden frame")
![DDR 1959 Michel 694 [[Gabriël Metsu]]](https://commons.wikimedia.org/wiki/Special:FilePath/DDR 1959 Michel 694 Metsu.JPG?width=200 "DDR 1959 Michel 694 [[Gabriël Metsu]]")
![by [[Vasily Tropinin]]](https://commons.wikimedia.org/wiki/Special:FilePath/Tropinin lacemaker.jpg?width=200 "by [[Vasily Tropinin]]")
![by [[Robert Frederick Blum]] bolster pillows](https://commons.wikimedia.org/wiki/Special:FilePath/'Venetian Lacemakers' by Robert Frederick Blum, Cincinnati Art Museum.JPG?width=200 "by [[Robert Frederick Blum]] bolster pillows")
![by [[Léon Augustin Lhermitte]] a pillow typical for [[Queyras]]](https://commons.wikimedia.org/wiki/Special:FilePath/Leon Augustin LHermitte (French, 1844-1925) «The old lacemaker».jpg?width=200 "by [[Léon Augustin Lhermitte]] a pillow typical for [[Queyras]]")
![[[Cogne]] pillows and stands](https://commons.wikimedia.org/wiki/Special:FilePath/Dentelles cogne epoca.jpg?width=200 "[[Cogne]] pillows and stands")
![Victorian domed pillow in [[The Hunting of the Snark]]](https://commons.wikimedia.org/wiki/Special:FilePath/Snark Beaver.jpg?width=200 "Victorian domed pillow in [[The Hunting of the Snark]]")
CRAFT OF MAKING LACE USING THREAD WOUND ON BONE OR WOODEN BOBBINS
Bobbin Lace; Bone-lace; Bone-Lace; Bone lace; Pillow lace; Lace pillow; User:Poljo/lace art
Bobbin lace is a lace textile made by braiding and twisting lengths of thread, which are wound on bobbins to manage them. As the work progresses, the weaving is held in place with pins set in a lace pillow, the placement of the pins usually determined by a pattern or pricking pinned on the pillow.
Wikipedia
Lace card
A lace card is a punched card with all holes punched (also called a whoopee card, ventilator card, flyswatter card, or IBM doily). They were mainly used as practical jokes to cause disruption in card readers. Card readers tended to jam when a lace card was inserted, as the resulting card had too little structural strength to avoid buckling inside the mechanism. Card punches could also jam trying to produce cards with all holes punched, owing to power-supply problems. When a lace card was fed through the reader, a card knife or card saw (a flat tool used with punched card readers and card punches) was needed to clear the jam.
