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. 1908 Excerpt: ... a machine, but which is sometimes done by hand. Brasses that are to be used for connecting rods, and which are made in two pieces as shown in Fig. 239, have a tendency to warp after the machine work has been done upon them. The difficulty arises from their closing along the diameter A. Thus if the brass is finished, ...
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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. 1908 Excerpt: ... a machine, but which is sometimes done by hand. Brasses that are to be used for connecting rods, and which are made in two pieces as shown in Fig. 239, have a tendency to warp after the machine work has been done upon them. The difficulty arises from their closing along the diameter A. Thus if the brass is finished, and the hole bored out to the proper diameter, and is then cut apart on 239the line CD, it will be found, shortly afterwards, that the diameter A is less than the diameter B. It may, therefore, be necessary to bore the hole somewhat larger than the working diameter. The kerf made by the saw will usually allow the parts to be drawn together along the diameter B so that it will more than make up for the shrinkage at A. The hole can then be scraped to fit the pin. The brasses should always be keyed solidly metal to metal. This avoids a wear of the sides and edges ot the metal due to the thrust of the rod. Joints. Where a gas or liquid is to be retained in a pipe or other vessel without leakage, a tight joint is necessary. The method of grinding valves to their seats has already been explained. In that case it was shown that a metallio contact between the valve and its seat is all that is required in ordei to make it a tig-ht joint. Two surfaces that have been scraped to fit will also accomplish the same purpose. This is frequently too expensive an operation to be performed, especially on rough work. In such places a soft material may be interposed between the two surfaces. Where the joint is to be a permanent one and is not to be taken down, the red lead joint is usually employed. This consists in the use of a mixture of red and white lead between the joints. To ordinary white lead ground in oil add enough dry red lead to make a paste that can be ...
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Fine. Trade paperback (US). Glued binding. 438 p. Contains: Illustrations, black & white. In Stock. 100% Money Back Guarantee. Brand New, Perfect Condition, allow 4-14 business days for standard shipping. To Alaska, Hawaii, U.S. protectorate, P.O. box, and APO/FPO addresses allow 4-28 business days for Standard shipping. No expedited shipping. All orders placed with expedited shipping will be cancelled. Over 3, 000, 000 happy customers.
Add this copy of Cyclopedia of Mechanical Engineering: Machine Shop Work to cart. $59.35, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Santa Clarita, CA, UNITED STATES, published 2011 by Nabu Press.
