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Perforator |
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perforator [′pər·fə‚rād·ər]
(communications) In telegraph practice, a device for punching code signals in paper tape for application to a tape transmitter. Perforator a prehistoric tool in the form of a pointed stick made of wood or bone. The upper portion is either thickened or shaped into a figure and sometimes has an opening for hanging. During the Stone Age, the perforator was used to make holes for sewing skins; later, it was also used to decorate clay vessels. As the use of iron spread, bone and wood perforators were replaced by the metal awl. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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