. Railway mechanical engineer . Fig. 4 operations and two heats. The first operation does abouthalf the upsetting and the second operation completes theupsetting and forms the end to its proper shape. The tubesare then taken to a turret lathe and the ball joint is are then taken to the pipe shop where they are bent,threaded elbows applied, and bands applied. This shopmanufactures all superheater unit tubes for renewals, andthey have proved to be just as good or better than those. Fig. 5 bought and very much cheaper. These dies are made ofanachine steel and the heading tools are m
. Railway mechanical engineer . Fig. 4 operations and two heats. The first operation does abouthalf the upsetting and the second operation completes theupsetting and forms the end to its proper shape. The tubesare then taken to a turret lathe and the ball joint is are then taken to the pipe shop where they are bent,threaded elbows applied, and bands applied. This shopmanufactures all superheater unit tubes for renewals, andthey have proved to be just as good or better than those. Fig. 5 bought and very much cheaper. These dies are made ofanachine steel and the heading tools are made of tool dies have been in service for four years and have madea large number of tubes. A special prepared lubrication for air drills has recentlybeen adopted on the E. P. & S. W. This consists of No. 2compression cup grease and valve oil. The proportions aretwo-thirds cup grease and one-third valve oil thoroughlymixed together which gives a splendid mixture for airmotors. The grease and oil are mixed with a butterfly pad-dle driven with an air motor. Air hammers are lubricated ina bath of coal oil and lard oil. The proportions are one-thirdlard oil and two-thirds coal oil. This is done at night when all air hammers are turned in to the tool room. They areallowed to remain in the oil all night, and if there is anydirt collected in the hammer or strainer it is dissolved bythe oil which eliminates many repairs of the 6 shows a method of machining the key-way
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
