Patternmaking a Treatise On the Construction And Application of Patterns Inclu
Patternmaking a Treatise On the Construction And Application of Patterns Inclu
Joseph Atkinson Shelly
The book Patternmaking a Treatise On the Construction And Application of Patterns Inclu was written by author Joseph Atkinson Shelly Here you can read free online of Patternmaking a Treatise On the Construction And Application of Patterns Inclu book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Patternmaking a Treatise On the Construction And Application of Patterns Inclu a good or bad book?
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3) or a bridge left in each end of a hollow cylin- der to accommodate the lathe centers (see example B) often greatly facilitates the machining of castings of this type. Lugs a and feet & on a casting of the general type shown at C are frequently used to facilitate leveling and clamping for the machining operations. Ring pipes D, used for making piston Machinery Fig. 2. Right- and Left-hand Pattern rings, are ordinarily provided with lugs for fastening to a face- plate. The number of lugs used ...should be regulated by the slots in the shop faceplates; four are the usual number, but, on small rings, sometimes only two lugs are provided, with the addition of two feet for steadying. The lugs may project either outward or inward, depending upon the size of the pipe and the size of the faceplate to which it is to be fastened. If the pipe is as large or larger than the faceplate, the lugs should be placed on the inside, but if it is smaller than the faceplate, the reverse method is used. The lugs, instead of being fastened directly to the bottom of the ring, are more often made with an added thickness between the lug and the ring, as shown at E.
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