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444 Transactions of S.M.P.E., Vol XI, No. 31, 1927 '
go to the committee with this dimension in view of the fact that it may be obsolete when it gets there. I suggest that it might be well to hold this particular thing up for six months to see what happens. If the French users object, of course, there will be no change.
Peesident Cook: It seems to me, Dr. Mees, in the first place that the point raised is out of order because the standard has already been adopted. We cannot, without a reopening of the entire matter, do anything; it would necessitate a further delay of six months to reopen it. If I understand you correctly, it will become obsolete automatically and therefore disappear without any particular legislation about it.
Dr. Mees : But you are taking this to the American Engineering Standards Committee and that is an authoritative body. It seems to me that it is a pity for us to put up to the committee something which is obsolete. If you have a rule which insists on your taking something adopted a year ago, it is unfortunate.
With regard to the shrinkage between sprockets, I do not know what Mr. Jones has done since the last meeting, but I called his attention to a paper by Joachim pubhshed in the Transactions that did not accept Mr. Jones' standard. Joachim said that shrinkage dimensions of lj% did not make the best sprocket, and I wondered if the Committee had considered this. I suppose Dr. Gage and Mr. Jones have gone over this, in which case I move that we adopt the motion.
Dr. Gage: Mr. Jones' recommendations are in agreement with Joachim's discussion. Mr. Jones' original proposals are given in No. 30 Transactions. That was the recommendation' which the standard must involve — the basic principles. Originally, Mr. Jones designed the take-up sprocket for a maximum shrinkage of 2.92%, as given in the previous Transactions (No. 27). Your Committee found from all the information we could get hold of that the maximum shrinkage to design for was !§%, and this is embodied in the recommendations.
President Cook: It would seem from the discussion that the Joachim report was given careful consideration by Mr. Jones at the time, and it was published as one of the few things included in the Transactions which are not of our own origin because it was felt it was of such importance. The matter has been up several times and was finally adopted after much discussion at Norfolk. I realize that thes6 matters must not be passed on hastily, but I think the matter