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Chuck (engineering) — Self centering three jaw chuck and key with one jaw removed and inverted showing the teeth that engage in the scroll plate. The scroll plate is rotated within the chuck body by the key, the scroll engages the teeth on the underside of the jaws… … Wikipedia
Micrometer — This article is about the measuring device. For the unit of length, see Micrometre. Outside, inside, and depth micrometers A micrometer ( … Wikipedia
Collet — For other uses, see Collet (disambiguation). Collets A collet ( / … Wikipedia
Unusual types of gramophone records — The overwhelming majority of records manufactured have been of certain sizes (7, 10, or 12 inches), playback speeds (33⅓, 45, or 78 RPM), and appearance (round black discs). However, since the commercial adoption of the gramophone record, a… … Wikipedia
Silk — This article is about a natural fiber and the textile woven from it. For other uses, see Silk (disambiguation). Four of the most important domesticated silk worms, together with their adult moth forms, Meyers Konversations Lexikon (1885 1892)… … Wikipedia

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