Popular science monthly . i in. from thecylinder heads in each of the cylinders,after which they are temporarily fast-ened in position on the cylinder supportwith these holes on top. Next solderthe other end of the port pipes to thecylinders. Remove all burrs from theinside of the steam-chest and cylinderswith file, emery-paper or knife-blade. The slide valve-rod is made from apiece of H in. brass rod 9 ins. long. Itis first bent tothe shape andflattened on theend as shown,SVR in Plate file twonotches aroundthe rod. Theseare about >4 and notquite 1/16 The cen-ter of
Popular science monthly . i in. from thecylinder heads in each of the cylinders,after which they are temporarily fast-ened in position on the cylinder supportwith these holes on top. Next solderthe other end of the port pipes to thecylinders. Remove all burrs from theinside of the steam-chest and cylinderswith file, emery-paper or knife-blade. The slide valve-rod is made from apiece of H in. brass rod 9 ins. long. Itis first bent tothe shape andflattened on theend as shown,SVR in Plate file twonotches aroundthe rod. Theseare about >4 and notquite 1/16 The cen-ter of the firstone is located1)4 ins. fromthe center of the3/16-in. hole,which is drilled in the flattened end for the center of the other one is madeexactly 7 ins. from the first one. Becareful to get these properly locatedas it is the most important pari <A tiieengine. The slide valves are cast on the slidevalve-rod just described. Use babbitt. Plate 2. Construction details of the slide valves metal for this. A piece of the 3^ ^8 in. long is first worked outand all burrs removed from the H-in. hole is bored in a board^8 inch. deep. In the center of thishole the M-in. bit is placed and thehole bored on through the board. Nowplace the small piece of pipe in the J^^ and slip the vaK^e-rod into the },<, passing it down until the firstnotch is in the center of the pipe. Thevalve may be cast by running the pipefull of babbitt. Carefully remove fromthe mold and set it up for the othervalve, using the same piece of both valves are cast in place theyare carefully fitted into position in thesteam-chest. If they are found to fittoo tight they may be scraped verylightly with a knife. From the piece of i32-n. pipe leftfrom the cylinders make the eccentricring. This is made just }/2 in. it has been carefully worked intoform and the edges rounded a trifle onthe inside as well as ou
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectscience, bookyear1872
