Clay Record Volume 9-10

Clay Record Volume 9-10

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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. 1896 edition. Excerpt: ...I don't understand the rattler test. Was it a test made by tumbling these bricks ad libitum in a barrel, or was something else rolled on them? Mr. Penfield.---I ask in the case of the second thousand revolution test if the twenty-six per cent is what was lost in the two thousand revolutions or if it is the sum of the first thousand added to the second thousand? These long lines represent the aggregate wear in each case. Mr. Eudaly.--'I'hese two blocks represent two distinct tests, the first and second rattling of the same brick. Prof. Orton.---This is the first rattling up to that part. The second is represented by that. The lower parallelogram is the aggregate of the test; the same brick tested again. The longer one represents the sum total of the whole loss and includes the upper amount. Mr. Eudaly.----I think the last suggestion Prof. Orton made in response to our friend Mr. Griflin ought to be borne in mind and acted upon by every one interested in this business--that this is the first test, and it is with'n the province of every manufacturer to prepare his clay at his own establishment, and make these tests for himself to see what his clay will do, with these different kinds of brick on his own machines and that will be very satisfactory. Mr. Cunningham.--According to the statement of Prof. Orton, in testing the brick, those with less laminations will show less loss than one which has a greater amount of laminations and we all know that some clays laminate much more than others. That partially answers the question of Mr. Griffin. Mr. Cl1ambers.--The results of Mr. Orton's tests simply indicate a principle which governs brick made from this shale under these different treatments. We cannot conclude from that that more

Product details

  • Paperback | 222 pages
  • 189 x 246 x 12mm | 404g
  • United States
  • English
  • black & white illustrations
  • 1236921348
  • 9781236921345