The Theoretical and Practical Boiler-Maker and Engineers' Reference Book; Containing a Variety of Useful Information

The Theoretical and Practical Boiler-Maker and Engineers' Reference Book; Containing a Variety of Useful Information

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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. 1882 edition. Excerpt: ...template maker. In using thick plates the best course to follow in arranging the joint is to fix upon the widest pitch consistent with tightness, employing the largest pitch admissible, and then determine the strength, of the shell from the section of rivets or plate left between holes, . whichever-may be, the weaker. For plates under in. thick there is an excess of strength in the rivets when using the pitch in the, table., The diameter of the rivet might therefore be slightly reduced, to make a tighter joint for very high pressures, were it not in danger of being eaten away by corrosion on the one hand, or knocked off by accident in cleaning on the other.-Smaller rivet holes than fin. diameter cannot be recommended for plates fin. thick and upwards.-The double rivetted lap should.be equal to 5 times the diameter of rivet, each line of rivets being Jd. from the edge of tho plate. Double riveted butt joints with inside and outside covering strips are rarely ever adopted in any but very thick plates, and when very thick plates are used it is questionable whether sounder work could not be done by using an outside double riveted butt strip in the transverse seams, and an inside and outside covering strip longitudinally; and as a thick plate can not be as proportionately strong as a thin one, the strips might be reduced in thickness with advantage. The greatest difficulty in making a tight joint in thick plates is when the strips are made too thick, which are not drawn closo together in riveting unless by the aid of a very powerful machine. It is in consequence of the excessive leakage in these marine monsters, that many firms quadruple the rivets in the horizontal joint, and only use a single outside fish plate. There is still felt a great want oshow more

Product details

  • Paperback | 70 pages
  • 189 x 246 x 4mm | 141g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236535626
  • 9781236535627