Transactions of the American Society of Mechanical Engineers Volume 7

Transactions of the American Society of Mechanical Engineers Volume 7

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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. 1886 edition. Excerpt: ... have known it to be a taper of only of an incli to the foot. Others have and I know of one case in which the intention was to have the taper of an inch to the foot, but by some mistake the taper of the first set of gauges for reamers, instead of being to the foot, was-fo. I think that of an inch taper to the foot, so far as we know from practice, is a good angle of taper for bolts which are required to hold together frames for locomotives, or, in fact, any such work. Mr. Coleman Sellers, in an address delivered before the Master Mechanics' Association in Chicago, June, 1883, considered that the grinding of reamers, and the preservation of standard sizes in reamed holes for frame bolts, using gauges for the purpose, was made a much more simple operation by having a taper rather than a straight fit. The bolts are easily removed, and they certainly can be made to fit the entire length as well as if they were straight. In dowel pins the amount of taper per foot might be increased, and an angle represented by a taper of a quarter of an inch to the foot might be better for this purpose. Mr. Towne.--I may mention, in connection with this question, that the subject to which this relates has been very fully discussed in the proceedings of the Master Car Builders, and a reference to their papers would shed a good deal of light on it. No. 204.--17. The effect of internal strain in hardened steel. DISCUSSION. Mr. Kent.--I do not know what is covered by this question, but I know of one instance of the effect of strain in hardened steel, which it might be well for members to know. One of the members of this Society, Mr. Gill, then of Pittsburgh, had occasion to make a knife edge for a testing machine. He took a piece of steel 10 inches long and 2 inches in...show more

Product details

  • Paperback | 302 pages
  • 189 x 246 x 16mm | 544g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236523032
  • 9781236523037