Transactions of the American Ceramic Society Volume 14

Transactions of the American Ceramic Society Volume 14

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1912 edition. Excerpt: settle. From the mica troughs the slip goes to the screen for the elimination of any particles of mica which may have floated to that point. Experience indicates that if sufiicient mica trough length is provided to eliminate the last traces of mica without the use of a screen, a large amount of slightly plastic kaolin will settle in the last portion of the troughs, and the product, while more plastic on account of the elimination of these particles, will possess an extreme shrinkage, which is objected to by the tile manufacturers who are at present very large users of the kaolin. The screens used are of three types, 1'-: 'z., the stationary, the rotary and the vibrating. The stationary screen is most common in this district and is so well shown in Fig. 20 that little additional explanation is necessary. The system as shown consists of four independent screens. The flow from the mica troughs is so divided that an equal portion is diverted in each screen. The screens are made in three sections each. The overflow from the first runs onto the second and from the second onto the third. The screens are Fig. 20.--.licn troughs and stationary screens. Note the flow of kaolin slip onto the top screens and the small amount that flows over onto the second and third screens. Clay Co. operations, Sprucepmc, Mitchell L0.. North Carolina. urns so slanted that the excess material flows off readily, thus preventing clogging; and the third screen rarely has any water on it except when the slip becomes too thick and an excess of fine sand and. mica is conveyed to the end of the mica troughs. The rotary screen is known to every one and may be seen in nearly any clay working machinery catalogue. It is very efiicient when used in clay working and has this...
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Product details

  • Paperback | 228 pages
  • 189 x 246 x 12mm | 413g
  • English
  • Illustrations, black and white
  • 1236982681
  • 9781236982681