Transactions of the American Ceramic Society, Containing the Papers and Discussions Volume 3-4

Transactions of the American Ceramic Society, Containing the Papers and Discussions Volume 3-4

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1901 edition. Excerpt: ...getting just as good a price as they do in open competition. What would it mean to us today, if we could bring our biscuit heat down to cone 5 instead of going to the excessive temperature we do? First: A very important item, saving of fuel. Second: Saving in saggars, on account of less heat employed, and the fact of being able to use very much cheaper clays than the very high priced ones we now have to buy in order to get sufficient refractoryness. Third: The easier regulating and more even firing of the kilns at the lower temperatures. This third reason is unquestionably a debatable one and one that I don't consider so important as the first two, as, from my point of view, there can be no possible question raised concerning these. I also claim that the finer grinding of our materials will not only help in reference to fuel and saggers and firing, but it will stop a large quantity of socalled mishaps that occur to us all without any apparent reason; mysteries that happen in all our potteries without any cause being discovered, and which disappear as mysteriously as they came. Who is there here that has not run up against one of the following circumstances: A manager is called into the clay shops to see a quantity of ware cracked in the moulds, a very excessive amount, whereas the day before, and probably for months previous, the percentage of cracked ware is normal. He knows that he has got in no new material; all the clays, flint and feldspar have been taken from the same bins, and no error has been made in mixing. The next day, the trouble which existed practically with nearly all the clay, suddenly disappears and everything goes on as usual. What has happened is probably this: The slip has been made too thin by the accidental running of more

Product details

  • Paperback | 142 pages
  • 189 x 246 x 8mm | 268g
  • Miami Fl, United States
  • English
  • Illustrations, black and white
  • 1236487338
  • 9781236487339